Electrical Review - September 2016

Informing the electrical industry for over 140 years

September 2016 Volume 249 | No 9 www.electricalreview.co.uk

Power efficiencies and maintenance Use power more effectively and control the lifetime costs of equipment

Ecodesign Directive

Test & measurement

ErP and the electric motor market

Between a rock and a hard place

CONTENTS | 3

04

26

NEWS Industry backing for fire and security awards

ECODESIGN DIRECTIVE ErP and the electric motor market

09 GOSSAGE Gossage:gossip

10 BATTERIES Germany –but not how you think

EDITOR: Elinore Mackay 020 8319 1807 elinorem@electricalreview.co.uk

30

PRODUCTION MANAGER Alex Gold 020 7933 8999 alexg@sjpbusinessmedia.com

TEST & MEASUREMENT Between a rock and a hard place

SALES MANAGER Philip Woolley 020 7933 8989 philip.wooley@electricalreview.co.uk SENIOR SALES EXECUTIVE Sunny Nehru 020 7933 8974 sunnyn@sjpbusinessmedia.com MANAGING DIRECTOR Wayne Darroch PRINTING BY Buxton Paid subscription enquiries Tel: +44 (0) 1635 879361 electricalreview@circdata.com SJP Business Media PO Box 6009, Thatcham Berkshire, RG19 4QB, UK

12 UPS Lithium-ion chemistry transforming the future for UPS technology

38 RENTAL A smooth operation

42

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TRANSFORMERS/TECHNOLOGY TO MARKET Transformer refurbishment benefits port terminal

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16 CABLE MANAGEMENT Protecting connectivity

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4 | NEWS

Select re-appoints president

Bsria appoints new principal consultant – residential

Select, campaigning trade body for the electrotechnical industry in Scotland, has re-appointed Eric Rae as its president.

Rae, of E. Rae & Son in Turriff, Aberdeenshire, has been influential in Select activity in Aberdeen and the North-East for many years. Elected to the post in 2015, he is now entering his second year of office.

He will maintain his full schedule of branch involvement and strategy discussions, as well as focusing on areas of interest such as training, employment affairs, health and safety and public sector procurement.

Rae said: “I am delighted to have been re-appointed to continue my work as Select president and carry on the organisation’s mission of seeking to influence legislation for the long-term benefit of the industry.

“Select has done, and continues to do, sterling work to create industry conditions which enable member firms to both provide a quality service to their clients and to maintain the high standards that characterise electrical installation in Scotland and, of course, Select.”

Newell McGuinness, managing director of Select, said: “Eric has proved himself to be an extremely able and conscientious president, putting the interests of our industry first at all times.

“We are very pleased that he will be in post for another successful year, directing his energies to seeking and securing outcomes which create the infrastructure for a sustainable future not only for the industry but for the Scottish economy as a whole.”

Bsria has announced the appointment of Tassos Kougionis as its new principal consultant – Residential in its Sustainable Construction Group, effective from 22 August 2016.

The appointment of Kougionis shows Bsria’s commitment to offering strategic consultancy services to the residential sector, spanning the whole construction process from conceptual design to on-site construction and post-occupancy evaluation.

For the past five years, Kougionis worked as the technical manager of the Zero Carbon Hub. His work focused on energy efficient homes, sustainability, health and well-being standards, policy development, research and innovation.

Kougionis has a background in Civil lisation in HyEngineering with a specialisation al Engineering draulics and Environmental ustainability in (MEng) and Energy and Sustainability e has authored Buildings Design (MSc). He and co-authored a numberr of reports and publications dealing with polis’ perforcy development, buildings’ onstruction mance data analysis and construction

Kougionis said: “I am very excited about this opportunity, in interesting times for the industry, and the chance to enhance BSRIA’s Sustainable Construction Group client base.

Bsria is a great organisation and I’m keen to bring my extensive research and commercial business experience to compliment and support the work of technical experts within the department.

I am interested in innovation and new technologies and appreciate good scientific rigour when it comes to research analysis.

This will stand me in good stead for my role at Bsria.”

good practice guides. sics, he has An expert in building physics, thorities, central worked closely with local authorities, ate stakeholders. government and major private nstruction Jo Harris, sustainable construction aid: “Tassos group manager at Bsria, said: brings with him a wealth of experience.

We see the appointment of Tassos as an essential step in our continued development of this key area which highlight’s BSRIA’s commitment to ‘UK plc’ and the sustainable construction of buildings.”

w: www.spec-ltd.com e: enquiries@spec-ltd.com t: 01924 871 558 SPEC Ltd has recently expanded its services to meet the individual needs and demands of the customer to become a national company with regional presence.

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Electrical Review | September 2016

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6 | NEWS

Industry backing for fire and security awards The FSA Awards will be presented at Ifsec’s Security & Fire Excellence Awards in November.

Six organisations in the fire and security industry have confirmed their support for this year’s Fire & Security Association (FSA) Awards, which are open for nominations until 21 September. The industry bodies backing the awards are as follows: • Electrical Contractors’ Association (ECA) • Select – The Scottish electrical trade body • National Security Inspectorate (NSI); • Security Systems and Alarms Inspection Board (SSAIB); • The Fire Protection Association (FPA); and • British Approvals for Fire Equipment (BAFE) Following a partnership deal, the two FSA Awards will be presented for the first time at this year’s industry-leading Ifsec ‘Security and Fire Excellence Awards’, being held on

23 November in London.

Representatives from the FSA, Select, NSI and SSAIB will be among the judges assessing the nominations for the two individual FSA Awards, which are as follows: • The Peter Greenwood Security Award – recognises individuals who have made an outstanding contribution to the security systems industry. Last year’s winner was

Simon Banks of CSL Dualcom.

• The Ian Marsh Fire Award - recognises individuals who demonstrate enthusiasm and selfless concern for the fire and emergency systems industry. Last year’s winner was Geoff Teader of Amalgamated Ltd (pictured: - Teader in the centre, alongside FSA Chairman Pat Allen on the left, and comedian Ed Byrne on the right).

The winners of both FSA Awards (plus one guest each) will be given free places on the FSA’s table at the Security and Fire Excellence Awards, which is being hosted by top comedian Jimmy Carr.

The deadline for FSA Award nominations is Wednesday 21 September at midday. For more details, or to nominate an individual for either award, please visit www.eca.co.uk/fsa-awards.

Sean Simpson wins SkillELECTRIC North of England competition New speakers have been announced for the Building Services Summit 2016 which has been launched by three leading industry services trade associations. The Building Controls Industry Association (BCIA), Building Engineering Services Association (BESA) and Electrical Contractors Association (ECA).

The Building Services Summit is taking place on 23 November 2016, at the British Library, London. The conference organised by BCIA, BESA and ECA members will give everyone an opportunity to share ideas by taking part in lively and informative discussions.

The speakers will include Roy Evans, of the Cabinet Office who leads on Government Soft Landings (GSL), an objective of the governments 2016-2020 Construction Strategy. Roy will be joined by Dr Karon Buck, founding principal of Medway UTC, a new school for 14-19-year-old students from Medway and

Electrical Review | September 2016

the surrounding regions. Dr Susan Scurlock is also joining the speakers’ panel. Scurlock founded primary engineer in response to the government’s call for more young people to be attracted into the engineering profession in 2005.

Other industry experts who will be joining the discussion include Bill Wright of ECA, an independent consultant on energy, control and sustainability matters. Graham Wright, legislation specialist of Daikin and president of FETA. Wright is a mechanical engineer who has worked in the air conditioning industry for over 30 years. David Frise, Head of Sustainability for BESA, and Stephen Hill an associate and building performance engineer for Arup are also part of the discussion panel.

The event will be discussing topical questions including: • Is the process of construction broken?

• Do building regulations stifle innovation?

• Why aren’t clients using the technological tools that are available?

• What are the alternatives to the current process of construction?

Malcolm Anson, president of the BCIA, says: “We have assembled some of the world’s most qualified experts to speak about how building engineering services can operate as efficiently and effectively to reshape the future of our buildings.”

“The leading industry experts will discuss the most topical questions in the construction sector and will address the challenges of a long-term building efficiency. The discussion will help the building owners and facilities managers to understand where efficiencies can be made in both new and existing buildings.”

Book tickets at www.buildingservicessummit.co.uk.

GOSSAGE | 9

GOSSAGE Attack dogs and Voldemort Chinese checkmate My many devoted readers will not have been as surprised as apparently everybody else was a change of prime minister has led to a serious re-think about the security implications of the Cameron government’s open-door policy towards Chinese nuclear investment.

Last November this column included an item called ‘Chinese Chequers.’ In it, I wrote about the growing concern being expressed, mostly privately, within the defence establishment by those concerned at the espionage threats.

I wrote that Britain’s publicly obsequious attitude towards Chinese nuclear investment had raised fresh questions about relations with Beijing: is it an adversary, a partner or a bit of both? For years, intelligence officials – in particular the electronic surveillance centre GCHQ – had been warning Chinese hacking attacks are one of the most substantial threats to Britain’s cybersecurity.

When the Foreign Office announced in 2011 it had repelled an attack on its internal communications from “a hostile state intelligence agency”, officials briefed that China was the culprit. But here was George Osborne, the then chancellor of the exchequer, shouting that Britain wanted to be “China’s best partner in the west”.

To that end it had been proposed that – as well as being bribed to get the much delayed Hinckley C started - Chinese companies would be permitted to build a nuclear power station in Bradwell, Essex, possibly the first of several such ventures.

Now it seems those concerned about the country’s security could be reversing that trend. The score line now reads: Ministry of Defence 1 HM Treasury 0 And we are heading for the final whistle.

All new leaders face tests. Do they mean what they say? Will they flinch and give way under pressure? Within days of taking office, Theresa May placed all new nuclear fission investment on hold, beginning with the £24bn white elephant at Hinkley Point in Somerset.

She immediately faced a barrage of attacks from the official Chinese news agency, and from its UK ambassador, Liu Xiaoming. He penned a remarkable article in the Financial Times warning the entire relationship between the two nations was at a “critical historical juncture.” Up to £100bn worth of financial investments might be at stake.

Mrs May has responded, politely but firmly, effectively saying that nuclear investments are in a different category to standard commercial takeovers.

In a sense, she has escaped lightly – on past form, the initial attack could have been far more vitriolic and personal. Liu has a track record of being Beijing’s attack dog. In 2014 he sparked a diplomatic row with Japan when he compared that country to the Harry Potter villain, Voldemort.

The entire saga has now become a three way governmental jostle between the UK, China and France – who own 85% of the initial (and dubious) technology proposed for Hinkley.

There is no outcome in sight that can please everybody. It is a textbook example of why it is hazardous to strike commercial deals with foreign state owned companies.

The threat is clear. But Mrs. May cannot afford to give in to it. To blink is to fail. And to be seen to have failed.

How could she go into the tough Brexit negotiations, having bent to first gust of wind from the East?

Incorruptible bribery There has been much debate about the new government’s latest wheeze to speed up the development of the UK shale gas industry. For some time special tax breaks and fast-track planning have been on offer for prospective developers. But a decade after the geological surveys revealed the UK had the second biggest potential deposits in Europe, almost nothing has been happening on the ground- except perhaps a minor earthquake in Blackpool in 2013 ascribed to some exploratory work being undertaken locally.

So a new plan has been cooked up to offer direct payments to households in affected areas to try to minimise local opposition.

Nobody has provided officially any estimate of what this might be worth. But unofficial (and unattributable) briefings suggested “up to £10,000 per family.” So naturally that is the figure that made the headlines.

Inevitably there were queries about just how this tax bribe might work. What would be the precise catchment area? Would it be tenant or landlord who benefitted? What would be the position if prospective recipients moved home? And a whole lot more.

Critically, no money will be forthcoming for local residents during the exploratory phase. Nor during the initial development phase. Nor indeed when/if any shale gas started flowing. Only when the companies were doing sufficiently well to be declaring taxable profits, would any money conceivably be being handed over to residents All this may yet be a mirage. The country with the largest shale potential in Europe is Poland. With reserves estimated at around 760 billion cubic metres, almost twice the size of Britain’s potential. In stark contrast with the cautious Brits, the Polish government long since altered no less than nine existing environmental and other laws relating to licensing and taxation. This was quite specifically to facilitate development and exploitation.

However, after considerable expenditure and exploratory work, doubtless irritating many locals, every single one of the major energy companies has effectively pulled out of Poland, As the worlds largest energy company Exxon explained, the geology in Poland was just impossible for cost-effective exploitation, and gas could only be recovered at disproportionate prices.

Who knows? We Brits may yet be forced to the same conclusion. But I am sure it won’t stop the hype. www.electricalreview.co.uk

10 | BATTERIES

Germany - but not how you think When you think of Germany, what do you think of? Most people will usually say football, beer, and BMWs. What most people won’t say is medical technology (medtech). Despite that, Germany’s medtech sector is by far the largest in Europe and the third largest in the world. It’s home to some of the largest Original Equipment Manufacturers (OEMs) and presents a wide range of opportunities for technology experts. Here, Michele Windsor, direct sales and marketing manager of professional battery manufacturer Accutronics, looks at the key features of the German battery industry

G

ermany is a nation of technical innovation and expertise, where up to 20% of the world’s scientific publications are generated, according to the Federal Ministry of Education and Research (BMBF).

This is balanced alongside a high sensitivity for environmental issues and ambitious government goals, such as Germany’s target for 80% of all its energy to come from renewable sources by 2050. This is reflected in the key sectors of the German battery market.

There has been a high level of investment into lithium-ion (Li-ion) batteries by both the private and state sector. For example, the BMBF contributed €25.7m to the Centre for Solar Energy and Hydrogen Research (ZSW) in Baden-Württemberg. Here, an industrial scale pilot production plant was opened with the intention of producing batteries for electric cars. This is a key market in Germany, reflected by the recent plans of the German postal service to power all vehicles with electric power.

However, it is the medtech sector where the German battery industry is vital, confirmed by the popularity of two key trade shows held annually, Medica and Compamed. Co-hosted with Medica, the world’s largest event for the medical sector, Compamed is a trade fair for the medical supplier industry and product development. The two events see over 5,000 exhibitors from around 40 countries come together with over 130,000 trade visitors in medical technology sectors ranging from nanotechnology and test and instrumentation to certification and

Electrical Review | September 2016

medical manufacturing.

The sector is dominated by small and medium sized enterprises (SMEs), with more than 95% of businesses having fewer than 250 employees. Following revisions to the European Medical Regulation, the German Medical Technology Association (BVMed) says that these smaller companies are finding it difficult to cope with additional procedures and more red tape. It is therefore vital for such companies to have an expert partner in order to deal smoothly with these regulations. At Accutronics, we have over forty years’ experience in the battery industry, and are experts in European regulations, meaning we can securely offer our expertise to German OEMs, many of which already rely on our ability to provide outstanding solutions for their battery and charger needs.

Key trends in worldwide medtech are also reflected in Germany, such as the move

towards wearable medical technologies. A recent survey carried out by KPMG and the Cologne Institute for Research shows that one in three Germans use fitness apps and tracking devices. These devices are capable of recording key types of medical data, such as heart rate and exercise and they are becoming increasingly important in the medical industry where practitioners often use this data to better diagnose and treat acute medical conditions.

A major concern in the industry is counterfeiting. The World Health Organisation (WHO) estimates 8% of worldwide medical products are counterfeit and that it is a growing trend. Of course, faulty or dangerous goods can have severe consequences in this industry and it is therefore vital that procedures are put in place to be sure of the authenticity of electronic devices, particularly of batteries.

At Accutronics, we use an advanced software-security algorithm in our batteries to ensure that only authentic batteries are used in medical devices.

It is clear there’s more to Germany than we might think. The large medtech sector plays a key role in the worldwide battery industry and offers many opportunities. There are still problems to overcome when it comes to counterfeiting and regulations, but with the right approach and a commitment to wellengineered products, we’ll begin to think of Germany as a leader in medtech alongside football, beer and BMWs.

12 | UPS

Lithium-ion chemistry transforming the future for UPS technology Li-ion dramatically reduces the footprint and cooling requirements for data centres, presenting VRPH VLJQLÀFDQW DGYDQWDJHV RYHU WUDGLWLRQDOO\ XVHG 95/$ EDWWHULH 9LFWRU $YHODU GLUHFWRU DQG senior research analyst at Schneider Electric’s Data Center Science Center, explains

T

he last few years have seen prices for Lithium-ion battery decrease rapidly, meaning that the technology has fast become a a viable option for data centre power. Li-ion batteries have been used commercially for over 20 years in various other applications, so why then have they not been adopted as batteries for static UPS systems?

The answer lies in the fact that, like all other applications, li-ion cells just weren’t available that provided UPS vendors with the right balance of price, energy density, power, safety, and reliability. However, advancements in li-ion chemistries and technologies over the last 10 years have provided UPS vendors with realistic options.

These advancements have largely been due to requirements driven by the automotive and electric vehicle industry.

When compared to VRLA batteries, there Electrical Review | September 2016

are a number of key reasons why the li-ion technology is now paving the way to replace VRLA in future data centre deployments. A recent research paper published by Schneider Electric, White Paper 229, ‘Battery Technology for Data Centers: VRLA vs. Li-ion,’ indentiďŹ es a 10-year total cost of ownership (TCO) analysis, showing li-ion costs 39% less than VRLA, despite their capital cost premium.

In addition, a sensitivity analysis revealed the drivers and beneďŹ ts of li-ion batteries for retroďŹ t and new UPS applications, discussing the effect of temperature on battery life, runtime, and cooling.

Li-Ion presents a number of key beneďŹ ts for UPS technology over VRLA, these include fewer battery replacements, in some cases perhaps none, required over the life of the UPS, which eliminates the risk of downtime posed by battery replacement.

They also weigh around three times less

but provide the same amount of energy as their VRLA counterparts. In addition, they deliver up to ten times or more discharge cycles depending on the battery chemistry and technology deployed, the surrounding ambient temperature, and the depth of discharge required. They recharge four or more times faster and discharge four times slower when the battery is not in use.

However, li-ion batteries also have two main drawbacks when compared to VRLA. First, they require around two to three times more capex for the same amount of energy, due to the higher manufacturing cost and the cost of the required battery management system. Second, due to the nature of the battery chemistry, they have stricter transportation regulations which will inevitably incurr further costs in order to ensure they are delivered safely and undamaged.

14 | UPS

At a general level, there are some common characteristics with all lithium-ion cells. However, some specific characteristics depend on the chemistry and technology.

The chemistry refers to the elements that result in a chemical reaction that charges and discharges the cell.

The chemistry determines the cell voltage and the technology refers to other design characteristics that ultimately determine the amount of energy (watt-hours), power (watts), energy density (watt- hours/kg), power density (watts/kg), service life, impact of temperature, stability, and a host of other characteristics.

UPS applications require batteries that can provide a large amount of power capacity for 5-10 minutes. Therefore, UPSs require technologies that can supply a large amount of current in a short amount of time whilst maintaining a safe internal cell temperature. When compared to lead-acid chemistry, li-ion provides higher energy and power per unit weight, typically referred to as energy density (Wh/kg) and power density (W/kg). Another key distinction between li-ion and VRLA is how much of the batteries energy capacity remains after the 5-10 minutes of runtime.

A power cell is designed to provide a relatively large amount of power in a short amount of time while using nearly all of the battery’s energy capacity. In a UPS application for example, a power battery solution could provide 1-2 minutes of runtime at full load while discharging about 80% of the battery energy capacity.

An energy cell however, is designed to provide a relatively small amount of power over a long period of time. In a UPS application, an energy battery solution could provide the same amount of power over the same amount of time detailed above, but will only discharge a 10-30% of the battery’s energy capacity.

This means for this application, an energy battery solution is oversized (in energy) and will likely provide much more runtime than required. Depending on the price of the energy cell relative to the price of the power cell, it could be less expensive to use an oversized energy battery solution in a UPS application, rather than a right-sized power battery solution.

A key conclusion is that li-ion batteries can be designed as power cells or energy cells.

Electrical Review | September 2016

Conversely, VRLA battery chemistry and technology limit their design solely as energy cells.

How long a battery lasts before you need to replace it is what really matters when it comes to battery lifetime. However, er, it’s important to understand the he different metrics suppliers use to measure asure lifetime.

Of particular importance is service life.

This is the estimated time a battery will last before it reaches 80% of its energy capacity, the typical definition of end of life for batteries.

Service life assumes the battery is operating under ‘real world’ conditions for a stated application and is therefore highly variable. In contrast, calendar life is the estimated time a battery will last if it were

Space savings are especially attractive to co-location data centres to r-emain trickle charged for its entire life with no power outages at a specified temperature, usually 25°C (77°F).

VRLA batteries have a service life in the range of 3-6 years whereas li-ion batteries can have a service life upwards of 10 years (estimated using accelerated life testing).

Note that it will be several years before data on actual service life becomes available for newer li-ion batteries, however, some li-ion batteries offer warranties in the 10 year range as a hedge against the lack of service data.

Due to the higher energy densities of li-ion batteries, they are much smaller in terms of footprint or volume compared to VRLA. This space saving is especially attractive to co-location data centres or facilities with higher real estate costs.

Similar to footprint, the higher energy density of li-ion also contributes to its lighter weight compared to VRLA and inevitably weight will contribute to increased transportation costs. The most important thing to remember about UPS

applications is that providers are required to work closely with reputable li-ion vendors to ensure safety is at the forefront when it comes to li-ion batteries.

They must find the best combination of chemistry, technology, cell packaging, and battery management for specific data centre use.

There are various regulations around shipping any kind of battery including li-ion or VRLA. These shipping regulations tend to be stricter with li-ion chemistries due to the higher energy densities and higher volatility of certain chemistries.

Using total cost of ownership (TCO) as a metric is gaining traction for certain data centre investments, namely those such as cooling economizer modes and UPS batteries. In the case of li-ion, certain chemistries and technologies present a favourable TCO over a 10 to 15 year period when compared to VRLA batteries. This happens to be the typical life span range of a UPS before replacement is needed.

For example, the operational battery expenses start at year 1 and continue till year 10. Battery maintenance, space lease, and energy costs are incurred every year, while battery refresh costs are incurred at year 4 and 8.

Our 10-year TCO analysis considers the capital and operational expenses outlined here, and revealed that the li-ion battery solution had a 39% lower 10-year TCO than the VRLA. This results in a simple payback of 3.4 years to break even from the higher li-ion capital investment.

In short, large UPS systems utilising li-ion batteries will address all the disadvantages of traditional batteries, namely footprint, lifetime maintenance, and cooling requirements. And we expect the performance of li-Ion batteries to improve and costs to steadily decrease.

16 | CABLE MANAGEMENT

Protecting connectivity 3RZHU DQG GDWD FDEOLQJ KDV QHYHU EHHQ PRUH LPSRUWDQW WR LQGXVWU\ ,W GULYHV HIÀFLHQF\ JDLQV DQG supplies safety critical operations, so specifying the correct cable protection to ensure continuity is more important than ever according to Tim Creedon, sales and marketing director of Flexicon

W

hatever industry you look at, the trend is towards data driven ‘intelligent’ solutions with equipment and devices interacting with each other to provide a solution where the whole truly is greater than the sum of its parts.

In manufacturing, Industry 4.0 is driving the agenda and while the definition of this new way of thinking is still a little hazy, what cannot be denied is that equipment is becoming increasingly automated. If one piece of equipment fails then it can cause the entire production line to grind to a halt, resulting in lost revenue and potential reputation loss among customers who demand deliveries by certain dates.

And in transport we are seeing even more examples both in the rail industry and in smart motorways. Network Rail’s Digital Railway strategy aims to increase capacity through making more effective use of existing infrastructure. It plans to achieve this using a combination of cab signalling and traffic management systems.

But beyond this the importance of cable protection for rail services such as signalling systems, passenger information points, lighting and security has always been recognised; it is often the rail industry that has led the way in cable protection.

We are now seeing other industries realise the importance of such protection Electrical Review | September 2016

and up their game. After all without power or data this brave new interconnected world would come tumbling down.

Specification is also becoming more sophisticated with OEMs, system integrators and other specifiers increasingly adopting a TOTEX approach for both equipment and its sub components. Cheapest is generally not

Simply supplying components to protect cabling is not the answer best when the cost and risk of downtime or failure is considered, but equally this should not be an excuse for an overengineered cable protection system.

Simply supplying components to protect cabling is not the answer. There is a real need for technical solutions that can be proven to meet the needs of the application.

Different industries and even applications within an industry can potentially subject the cabling to different hazards.

This means specifiers should not rely on rules of thumb but need to think through

such protection with care and seek professional advice from reputable flexible conduit manufacturers.

Such an approach means you will specify a system that will not fail and is also not a costly over-engineered solution.

The first step is to conduct a risk assessment for the particular application, identify the likely hazards and then specify a complete conduit system to ensure the cables’ long-term protection. This will in turn ensure continuity of power and data to keep vital systems functioning.

Generally most cabling will be subject to three or four different hazards, but these of course will vary according to the application. In food processing it might include high pressure jet cleaning, exposure to cleaning chemicals, thermal cycling from different temperatures, vibration, impact or abrasion.

An application in the rail industry may have similar hazards or be completely different, having to cope with immersion in water due to flooding, exposure to UV light, freezing temperatures, attack from rodents, vandalism or potential cable theft, dynamic pulling and the list goes on.

Each is different and indeed in both cases the lists above are not exhaustive.

Even having identified the likely hazards, it’s still a case of buyer beware. Take the issue of ingress protection. When it comes

18 | CABLE MANAGEMENT

to water ingress, it is not simply a case of specifying the highest test and assuming that this is okay. The standard actually states above IPx6 you cannot assume that the product will meet a lower level.

This is because above this level each has a different type of test and is subject to different conditions and environments.

In the food industry IP69 is commonly specified because equipment is subject to high-pressure steam cleaning for hygienic reasons.

Water ingress with the rail infrastructure is likely to come from a different source however, possibly immersion due to flooding, so could need IPx7 or IPx8 protection.

This raises an interesting point. The test for IPx7 is perfectly clear: it states “30 minutes at 1 metre immersion under water.” If, however, you want a higher performance level than this, then IPx8 is open to interpretation, it states “Immersion at a depth (pressure) and time stated by the manufacturer, but must be more onerous than IPx7.”

In other words, the manufacturer decides the exact nature of the test, so check with them what they mean by IPx8.

For the record, Flexicon has conducted tests on products immersed in one metre of water for 72 hours. We believe this mimics what the cabling might be subjected to if there are floods covering infrastructure.

Crush or impact resistance is another area that it pays to think about carefully.

Here though the problem is often to do with over-specification. There is often an out dated rule of thumb that leads to the specifier simply insisting on metallic conduit without considering the nature of the hazard faced by the cabling.

Metallic conduit typically has an inherent toughness and a high level of crush resistance, but the technology for non-metallic conduits has advanced dramatically, meaning that they can generally offer a tough enough solution, at a fraction of the price, whilst offering simplicity when it comes to installation.

Flexicon’s metallic systems range for instance offers compression strengths starting at 45kg/100mm going up to 570kg/100mm, whereas its non-metallic conduits offer compression strength of up to 150kg/100mm.

So at face value you may opt for the Electrical Review | September 2016

metallic option, but take a closer look at the installation. Even where compression strength and crush resistance might be an issue, in all but the most extreme cases 150kg/100mm, or even probably less, is more than adequate.

The lesson then is to identify the hazards and then also consider the degree of each hazard and specify appropriately.

At this point it is worth remembering protecting cabling using a flexible conduit system is about more than the conduit; the fitting is an integral part of the system and for many hazards the interface between the conduit and the fitting and/or the fitting and the equipment could be the potential weak link.

It is well worth exploring different fittings for their properties and take just as much care over their specification.

Likely factors may include, IP rating, pull

off strength, resistance to vibration and dynamic forces, resistance to tampering plus of course ease of installation.

Just like the development of flexible conduit, new fitting technology has made great strides over the last few years to help ensure system integrity and continuity.

FINAL THOUGHTS Staying connected is more important than ever across all industries to maximise efficiency and ensure safety. There is an influx of new suppliers and solutions for cable protection, so you need to specify with care and understand what you are protecting the cabling from by conducting a thorough risk analysis. Get it right and you will enjoy many years of maintenance-free safe electrical and data connectivity. It’s not even worth thinking about the potential consequences of getting it wrong.

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20 | DCIM

DCIM – The power is in your hands Computing demand and energy costs have been driven up by new technologies and unprecedented business innovations during the past few years. All this at a time in the economic cycle that dictates increased scrutiny over IT budgets, that compel both legacy DQG QHZO\ EXLOW GDWD FHQWUHV WR GHOLYHU RQ ,7 FDSDFLW\ DQG HQHUJ\ HIÀFLHQF\ 0LFKDHO $GDPV (0($ GLUHFWRU ,'& 3DQGXLW H[SODLQV

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ata Centre Infrastructure Management (DCIM) must step out of the shadows to demonstrate its positive capabilities for both data centre operators and customers and demolish the negativity that has developed around the acronym, due to ineffective and poorly implemented monitoring systems.

Power is an essential commodity in the data centre and achieving a balance between running and cooling IT operations can create major challenges for data centre operators. However, understanding this balance and how to maintain it provides the basis for enhanced operator return on investment (ROI). Over provisioning, has always been a belt and braces response to to need for data centre resilience, but allows waste into the system and resulting in unnecessary expenditure.

Too little capacity can increase the risk of unplanned downtime and reduce the resilience, so crucial in the modern data centre. However, Data Centre Infrastructure Management (DCIM) providers have been guilty of delivering only broad and often ill-deďŹ ned systems and deployments, which often lack a structured development path. This has to some extent tainted the DCIM message, which if delivered and implemented successfully can provide clear and deďŹ ned beneďŹ ts to the operator and customers.

As an organisation, Panduit is an innovator in data centre infrastructure and has developed a range of products and services in its SmartZone Stack which encompass intelligent hardware for data capture, DCIM software platforms that provide information to address operational challenges and services that implement the solutions.

Designed and conďŹ gured correctly DCIM power solutions enable comprehensive Electrical Review | September 2016

energy and physical infrastructure efďŹ ciency in data centres, facilities and enterprise estates. These focus visibility of power, capacity and environmental information that is accurate and actionable for operational optimisation. An essential step towards effective power management is through the deployment of real-time monitoring and data collection solutions capable of generating information on critical areas of power and energy performance. The goal is to quickly provide IT and facility professionals with a transparent view of actual consumption and capacity. These diagnostics will help elevate operational efďŹ ciencies, reduce operational expanses (OpEx) and increase the resiliency of facilities in support of Service Level Agreements (SLAs).

DCIM is becoming an integral element in the data centre operation. As part of the total solutions approach customer and suppliers work together through comprehensive DCIM consulting and implementation services. In

this way they become focused on achieving manageable, measurable and cost effective DCIM strategies.

Key beneďŹ ts of early implementation of a comprehensive DCIM include: • Improved capacity planning and management • Understanding of the power consumption of the installed equipment • IdentiďŹ cation of inefďŹ cient resource utilisation • Gain an accurate view of overall and individual IT equipment energy use.

A thorough evaluation of power and thermal performance needs to be undertaken with any remediation plan generated if necessary and deployment of the appropriate monitoring solution undertaken. Implementation of regular performance assessments and any agreed adjustments made to ensure power optimisation is realised, to ensure the

DCIM |21

system can quickly achieve and maintain ROI benefits.

Chief among goals for infrastructure and environmental management is the need to provide clear and actionable data to both IT and facilities professionals enabling them to work together. Using the latest scalable DCIM power modules, it is possible to, deliver advanced observations on vital power and environmental parameters.

Operators can now have centralised, real-time and historical visibility of power, environmental conditions, capacity and security in the data centre or building using granular operational data captured by the DCIM tools and system. Accumulating trend data allows the operator to drive increased efficiencies throughout the data centre.

The software monitors, documents and displays vital operational parameters surrounding energy consumption including load draw, kVA, kW, kW/hrs, RMS volts and amps and environmental status to keep the operator in control. And it is not only IT power and environmental monitoring that is tracked, the latest software provides reporting across all other critical areas found in data centre and enterprise facilities. Aligning all the facilities and IT needs for optimal power, cooling and capacity planning.

The clear, easy to read dashboards and reports enable swift evaluation and well informed decision making regarding the condition of the data centre. The system

allows operators to drive enhanced programmes to advance sustainability and operational performance.

The latest DCIM systems provide pinpoint accuracy concerning power and environmental monitoring, and this can be undertaken on site or via a linked

Alarm and alert thresholds can be defined and automated

historical and user defined performance data about operating temperatures, humidity and other environmental factors.

To ensure ease-of-use the latest systems employ gateway enabled rack power distribution units (PDUs) and inline metres to connect to the network through single gateway infrastructure topology. This simplifies the network by consolidating the monitoring and management of connected rack PDU devices, and other equipment, through a single IP Address. The reporting is available across a range of systems including control room consoles, desktop, laptop and tablets for on-site and off-site mobility.

CONCLUSION console. Also alarm and alert thresholds can be defined and automated to ensure defined increases or drops in parameters are not ignored.

Operational issues are easily isolated which can prevent costly outages that affect performance, whilst the system allows improved cost allocation across entire facilities from individual rooms, servers, groups of racks and support services, including mandatory legislative reporting.

These DCIM solutions enable environmental monitoring of IT, cooling and supporting facilities equipment. Sensors connect to network gateways or directly to available sensor ports on network enabled rack PDU to capture and analyse real-time,

DCIM now has the capability to provide intelligent monitoring with manual or automated response to data centre power fluctuations. These systems are now being used across the globe to control and save data centre operators up to 30 percent of cooling expenditure, reducing total power usage, maintaining UPS efficiency, whilst ensuring the facility remains operationally optimised.

Today’s DCIMs offer an environment with increased flexibility and agility, allowing data centre operators to plan for change and adapt the capacity more easily. Carefully planned and monitored power requirements can provide essential operational savings which allow more cost effective operations and increased ROI.

www.electricalreview.co.uk

22 | ADVERTISEMENT FEATURE

The Digital Estate-power quality monitoring

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or facilities managers it is becoming increasingly critical to maintain control of energy usage, both in terms of legislative requirements and environmental policy.

Never before has energy efficiency been so crucial.

Furthermore, with the continuous evolution of technology, a hard-working electrical infrastructure needs to be able to meet the demands of today, and in the future.

The process of developing smarter facilities starts with developing an advanced understanding about the way that resources are used – and the way that those resources are managed. The efficient management of energy costs starts with the accurate measurement and centralised monitoring of energy consumption, across the entire estate.

Socomec’s advanced systems will help to reduce the cost of the measuring point for new or existing installations, reduce the configuration and integration time whilst improving performance levels.

By integrating smart technology within an electrical infrastructure, it is possible to develop an unparalleled understanding of sites, buildings and processes. This new connectivity – combined with a universal view of operating parameters - enables a reduction in energy consumption, costs and emissions and makes the deployment of resources more efficient.

The status of key operating parameters can be tracked in real time, delivering a greater degree of agility and accuracy – both virtual and physical anomalies can be addressed rapidly, in turn achieving maximum uptime and reduced operating expenditure.

Critical buildings and facilities need to deliver tangible cost savings by identifying efficiency opportunities in order to justify their share of internal resource; solutions are available today that converge the latest digital technology with the world of energy to minimise energy consumption and emissions,

Electrical Review | September 2016

optimise equipment lifespan and ensure total reliability.

Once a performance base has been established, the results of optimisation work become more transparent

TAKE CONTROL OF YOUR ENERGY COSTS For the efficient management of energy costs, Socomec’s Diris Digiware accurately measures and centrally monitors energy consumption – across the entire estate. Delivering an advanced understanding of sites, buildings and process, Digiware can provide accurate data that helps target reduction of energy consumption and associated costs and emissions – for optimum efficiency.

Within MV/LV substations, low voltage monitoring can detect imbalances and anomalies in real time, including possible backfeed, unplanned events and temperature variation.

A NEW LEVEL OF PERFORMANCE A fully digital, multi-circuit plug and play measurement concept, with a common display for multi-circuit systems, Digiware is compact and quick to install, and provides the industry’s most accurate and effective metering, measurement and monitoring of electrical energy quality. Infinitely scalable, it is capable of monitoring thousands of connection points.

Socomec’s Diris Digiware system offers an accuracy of class 0.5 to IEC61557-12 from 2% to 120% of the current sensor primary rating.

HOW MUCH CAN YOU SAVE? To learn how Socomec’s integrated power solutions can benefit your facility, attend the AUE conference between 7 – 9 September at Brunel University. www.socomec.com

24 | ADVERTISEMENT FEATURE

Measuring UP(S): Power efficiencies and maintenance For today’s UPS, the need to use power more effectively and to control lifetime costs of equipment is as important as the need for mission-critical power protection. In turn, having the right maintenance plan in place and looking after your UPS equipment is also vital to maximise total cost of ownership. Leo Craig, general manager at Riello UPS, explains THE ENERGY TECHNOLOGY LIST Selecting the right UPS for an individual application can be a difficult task when balancing efficiency considerations with cost.

As a starting point, the Department for Energy and Climate Change (DECC) Energy Technology List (ETL) is a governmentmanaged list of energy-efficient plant and machinery. The drive behind it is to encourage businesses to invest in approved energy saving technologies. By choosing a product off the list, businesses can write off the entire cost of any green technology against taxable profits in a single year.

REALITY CHECK UP(S) The reason for this is the way the efficiency targets have been set by the Carbon Trust and the reality in which we use UPS’s in our critical environments. While the list is a good starting point, it is important to consider the way efficiency targets have been set by the Carbon Trust and the reality in which we use UPS’s in our critical environments.

If you have a standalone capacity UPS system for example, best practice is to run it to around 80% utilisation, leaving some head room for demand surges and load changes. If you’re running a parallel redundant system, then this figure falls to 40% load on each UPS. If you compare best practice to real world figures, then it’s more like 60 to 70% for a capacity system and 25 to 35% for a parallel. This is because when UPS are sized initially, everyone allows for expansion, which rarely happens short term and sometimes not even in the long term. Nobody therefore runs a UPS at 100% load. It’s bad practice and very risky if you consider that a slight increase in load will put the UPS into bypass and leave the load unprotected.

This is where the ETL List comes into question, as its efficiency requirement figures start at 93% at 25% load, 94.5% at 50% load and rises to 95% at 75% and 100% load.

Now consider this: most UPS manufacturers design their UPS’s to work in real life situations. They design the UPS to have maximum efficiency between 20 and 80%, with the efficiency slightly dropping at 100% because one should never be run continuously at 100% load. Therefore, there are a lot of UPS’s manufacturers out there that not only meet, but actually exceed the 25-75% efficiency requirements but just miss the 100% target because the design of the UPS is to give high efficiency at low loads.

Therefore, current UPS listed on the ETL list might well meet the targets set, but only just, and if you’re running your UPS between 30 and 80% load you may well not have the most efficient system for the load you’re actually using. This means whatever you may gain with the ECA tax relief in the first year, you could well lose in greater energy costs over the lifespan of the UPS.

PRACTICAL ADVICE WHEN CONSIDERING UPS

Leo Craig

Whilst taking the ETL into account, it is always advisable to carry out further investigations with the potential UPS manufacturer.

Ask for a copy of the efficiency test results or even better, if a large UPS system is being purchased, insist on a factory acceptance test, where you can see for yourself the efficiency figures being proved. If you find that the system does not perform to the published figures, then you can address this directly with the manufacturer. A two percent difference in efficiency figures can have a massive impact – for example, a 1MVA UPS could add over £15,000 a year to your electricity costs – and that’s without taking into consideration the addition to the cooling bill.

THE POWER OF LI-ION There is now the possibility to use Lithium Ion (Li-ion) batteries with a UPS in ‘offline’ or ‘emergency standby’ mode. This means the UPS is running at 99.5% efficiency and is effectively acting as Electrical Review | September 2016

ADVERTISEMENT FEATURE | 25

RIELLO UPS MULTI SENTRY RANGE

an energy accumulator which can be deployed in power outages.

As Li-ion batteries have greater cyclic properties (10,000 cycles) compared to valve-regulated lead acid (VRLA) batteries (500 cycles), they have a faster rate of recharge which makes them suitable for energy storage applications.

Li-ion batteries now give data centres the ability to store sufficient power capacity to keep the data centre running for 30 to 60 minutes or more without having to run the generator. From an environmental point of view, Li-ion can work in temperatures from 0-40 degrees without affecting the battery life, hence removing the need to keep the battery room at 20 degrees as demanded by VRLA, thereby offering a saving on cooling.

The complete Riello UPS Multi Sentry range between 30 and 200 kVA has now been listed on the Department for Energy and Climate Change (DECC) Energy Technology List (ETL).

The Multi Sentry series is ideal for protecting data centres and telecommunications systems, IT networks and other critical systems.

In addition, Riello’s modular UPS range, the Multi Power and Multi Power Combo have also been added onto the list. Multi Power is designed to achieve the highest levels of power and performance in a data centre environment and on other critical loads.

Meanwhile, the Multi Power Combo is capable of housing up to three 42kW power modules and 20 battery units across five battery shelves, delivering total power output of 126kW or 84kW with N+2 redundancy.

For more information, visit www.riello-ups.co.uk or call the sales team on 0800 269394.

MAXIMISE YOUR UPS SMARTER TECHNOLOGY FOR THE GRID According to the Carbon Trust, implementing energy storage systems could contribute £2.4bn to the UK electricity system by 2030 – providing regulatory reforms are introduced. UPS manufacturers are also developing products that are smart grid ready so that they can be integrated with alternative renewable power sources and facilitate switching between the grid and solar, while allowing export back to the grid.

For example, more and more data centres are taking up ‘triad’ or ‘smart’ contracts with Distribution Network Operators (DNOs) which means when demand from the grid is high, instead of cutting power from a facility without warning, the data centre receives a request from the DNO to remove itself from the grid and use generators instead to support the data centre. For data centre operators, this not only helps to manage energy costs but also creates an additional revenue stream and offers an opportunity to test the resilient power system in real time with minimal operational risk.

There are many factors to take into account when assessing how to use UPS more effectively and control lifetime costs.

Energy efficiency lists like ETL provide an excellent basis but it is also important to carry out further investigations with your manufacturer. Exploring opportunities such as using Li-ion batteries and smart grid connection also offer new ways of maximising your UPS efficiency.

LIFETIME COSTS OF EQUIPMENT Like any equipment, the UPS has consumable parts that age with use. At some point during the life of a power protection device, the batteries will need replacing and other consumable components will reach the end of their recommended life span.

While it is advisable to run regular checks on the UPS and battery room, having a robust maintenance plan in place is also crucial.

UPS maintenance plans are designed to provide more comprehensive cover than a warranty and a guaranteed emergency response time; defined in either working or clock hours. With Riello UPS for example you can choose between silver (12 working hours), gold (eight working hours) or platinum (same day, four clock hours) maintenance plans. These are guaranteed response times. Maintenance costs should be reviewed alongside the initial outlay/efficiency of the UPS in order to ensure that the package has a transparent TCO. www.electricalreview.co.uk

26 | ECODESIGN DIRECTIVE

ErP and the electric motor market With the Ecodesign Directive requirements for electric motor driven systems set to come into force in less than six months’ time, Mark McCall, product marketing manager at Newey & Eyre, explains what this means for the 70% of the commercial sector affected

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Mark McCall

Electrical Review | September 2016

he Ecodesign Directive (commonly referred to as the Energy-related Products – or ErP – Directive) has been making waves in the commercial and domestic market since the framework was first established by the EU in October 2009. It applies to energy-related products - those that use energy, or have an indirect impact on energy consumption - sold in the domestic, commercial and industrial sectors in the European Economic Area.

Each phase of the requirements has focused on a number of product groups, referred to as ‘Lots’ under the directive, which have all been placed under scrutiny due to the proportion of natural resources and energy they consume. Therefore it means they are likely to have the most potential to reduce greenhouse gas emissions through improved operational efficiency.

Whilst the process has had a limited immediate impact on how contractors and engineers operate, a vast amount of work has been going on behind the scenes. It has resulted in manufacturers requiring a change in strategy in terms of how products are designed and ultimately how they are tested.

In return, contractors have benefitted from a new generation of products on the market offering competitive performance and energy efficiency, as manufacturers fight to meet the basic requirements, and beyond. This is especially poignant for manufacturers as products that do not meet the energy efficiency criteria will not receive a CE mark and will no longer be legally allowed to distribute these products into the supply chain.

And there’s much change to come. As part of the next wave of ErP requirements, which will come into force in January 2017, electric motors in the industrial setting will require all squirrel cage motors above 0.75kW to be supplied as an IE3 motor, or with the current IE2 with a variable speed drive.

Here lies an opportunity for contractors to get up to speed with what this means for their industrial customers. And importantly, arm themselves with the latest innovations that offer not only a regulatory compliant product, but also leading levels of efficiency and performance.

The global industrial sector alone uses more delivered energy than any other market, consuming over 54% of the world’s total delivered energy. This represents a huge opportunity for savvy contractors to educate their customers about the importance of reducing their energy consumption and CO2 output.

What’s more, according to the Carbon Trust, the UK commercial sector is spending on average £2.3m on energy, with warehousing being one of the worst energy spenders2 – offering an even more tangible benefit for end users in the form of savings on their bottom line.

One of the core consumers of energy in the industrial sector is

28 | ECODESIGN DIRECTIVE

In many applications the energy savings alone are enough of a conclusive argument to incorporate a motoro with a VSD

the prolific use of industrial electrical motors which accounts for 21% of the UKs electrical consumption alone3.

While the use of an IE3 motor does tick the boxes for efficiency and the new regulations, it’s important to note that IE3 motors can be more expensive to purchase. The materials they are constructed out of cost more, they require closer manufacturing tolerances, and ultimately incur a higher cost to manufacture.

This is where it is recommended to consider an alternative option, by selecting an IE2 motor with a variable speed drive. A variable speed drive (VSD) controls motor speed and torque by accurately regulating the motor input voltage and frequency.

This ensures a closer match between the motor speed and the output requirement of the machine it is driving.

In many applications, particularly centrifugal fans & pumps the energy savings alone are enough of a conclusive argument to incorporate a motor with a VSD. A huge benefit is the fact that the user is also likely to see increased motor longevity and a reduced risk of motor and machinery damage during start up, running and shutdown.

Traditionally VSD’s were only specified when part of a larger or more complex control system, chiefly due to a gap in the market for an enclosed direct online (DOL) product that incorporates the benefits of a VSD. To combat this, at Newey & Eyre, we’ve developed the Newlec ECOStart – an energy efficient enclosed motor starter that offers all the benefits of a VSD and, importantly, when combined with an IE2 motor, is ErP compliant.

Often motors are over-rated for their application, meaning the speed can be reduced overall to deliver lower energy consumption. Supplied to run at 85% motor speed, ECOStart is an out of the box solution for contractors, which can immediately provide up to 40% electrical energy savings. What’s more, it is as easy to fit as a conventional DOL starter and can be fixed to a wall or machine, simply wired and set up with minimum effort to take quick advantage of the available savings & benefits.

As well as significant energy saving benefits, ECOStart comes with soft start providing reduced in-rush at switch on and a gentle ramp down controlling the motor to rest offering much reduced mechanical wear on motor and machinery and lower overall noise.

The ECOStart also offers enhanced adjustability, meaning it can be set to operate exactly to the requirements of the Electrical Review | September 2016

individual application, the most simple and effective adjustment easily done by an internally mounted speed potentiometer offering even greater energy savings if desired. To provide contractors with everything they need to discuss with the customer when specifying a new motor, we’ve also developed an ECOStart Web calculator, which can be used to calculate the approximate savings and potential payback period for each individual application.

For example, in using a 4kW ECOStart motor with three phase inverter, set to run at 85 per cent, in a system that is operational for 12 hours per day, 250 days per year with an electricity cost of 12 pence per kWh, the user could be expected to save a substantial £836 per annum on their energy bills, with a payback period of only 1.5 years.

The reality is, going forward the new ErP requirements are going to affect 70% of the commercial market. The impact will be felt across the industry, from manufacturing plants and factories, through to data centres and the automotive sectors. As a result, specifiers will therefore need to take an alternative approach to the way systems are designed and specified.

ErP isn’t a new concept to the wider commercial market. And those contractors working with industrial customers must once again invest time in understanding the next phase of requirements and arming themselves with the latest high efficiency innovations available from manufacturers that will offer a new revenue stream and set them apart from the competition.

30 | ADVERTISEMENT FEATURE

Quick and easy three-phase testing of power transformers

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ith TESTRANO 600, OMICRON has developed the world’s first portable, three-phase test system, which supports all common electrical tests on power transformers. Weighing just 20 kg/44 lbs, it is ideal for routine and diagnostic testing on-site and during factory acceptance tests (FAT). In addition, its innovative design significantly reduces wiring efforts, cutting down testing time to one third compared to conventional single-phase testing.

performed. This increases efficiency and safety during testing.

Operators can also quickly demagnetise the power transformer’s core before and after testing using TESTRANO 600. Demagnetisation is recommended after DC has been applied on a power transformer, for example, during winding resistance tests. A demagnetised core reduces the risk of high inrush currents and avoids the influence of a magnetised core on subsequent tests, such as excitation current tests or sweep frequency response analysis.

ONE SYSTEM – MULTIPLE TESTS With TESTRANO 600, operators need just one common setup to perform multiple tests, such as transformer turns ratio, exciting current, DC winding resistance, dynamic resistance, short-circuit impedance / leakage reactance as well as frequency response of stray losses (FRSL). By combining it with the accessory CP TD1, it can also test power/dissipation factor and capacitance up to 12 kV.

SAFETY FIRST

THE MAGIC NUMBER ‘3’

COMPACT AND RUGGED FOR ON-SITE TESTING

In order to work with TESTRANO 600, just three cables have to be connected: One to the high-voltage side, one to the low-voltage side and one to the tap changer. Three integrated sources ensure measurements with high accuracy and make TESTRANO 600 a powerful test system (3x 33 A DC and 400 V AC). Compared to conventional single-phase test sets, a true three-phase test system offers several advantages, such as shorter testing times when energising all three phases at once, and a fully automated control of the tap changer during testing.

With all its accessories, TESTRANO 600 comes in a portable case and is easy to transport. Its rugged design makes it ideal for onsite testing even in rough operating conditions. All in all, Testrano 600 brings on-site and factory acceptance testing of power transformers to a new level – it has never been so quick and easy. www.omicronenergy.com

FLEXIBLE AND SMART OPERATION In order to fulfil individual customer requirements, TESTRANO 600 offers a flexible operating design. It can be operated via the smart Testrano TouchControl on the integrated touch display or by using the established Primary Test Manager software on the laptop.

ACTIVE DISCHARGE AND QUICK DEMAGNETISATION The controlled discharging function (patent pending) of TESTRANO 600 automatically discharges the winding within seconds, for example, after resistance tests have been Electrical Review | September 2016

TESTRANO 600 follows the ‘safety first’ principles and is equipped with an emergency stop button as well as safety and warning lights. The unique connector plugs and the simple wiring concept with labelled connection leads leave an extremely narrow margin for wiring errors.

OMICRON is an international company serving the electrical power industry with innovative testing and diagnostic solutions. The application of OMICRON products allows users to assess the condition of the primary and secondary equipment on their systems with complete confidence. Services offered in the area of consulting, commissioning, testing, diagnosis and training make the product range complete. Customers in more than 140 countries rely on the company’s ability to supply leading edge technology of excellent quality. Service centres on all continents provide a broad base of knowledge and extraordinary customer support. All of this together with our strong network of sales partners is what has made our company a market leader in the electrical power industry.

32 | TEST & MEASUREMENT

Between a rock and a hard place Distribution network operators (DNOs) are facing a tough challenge, says Damon Mount of Megger. They need to offer speedy and reliable connections for a diverse range of renewable energy sources, but at the same time they must protect the reliability of their networks. If they get it wrong, Ofgem’s RIIO-ED1 regulation and price FRQWURO SDFNDJH PHDQV WKDW WKH\ ZLOO SRWHQWLDOO\ VXIIHU VHYHUH ÀQDQFLDO SHQDOWLHV

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he very nature of power generation and distribution is changing, and this is creating a real headache for DNOs. They have a distribution network that was designed to accommodate a comparatively small number of large power stations, and are now having to adapt this to the world of embedded generation, where a large number of small power sources is the norm. The changes required are by no means trivial, especially as they must be accomplished while the network remains fully operational, reliably delivering energy to the DNOs’ customers.

It is clear substantial investment may be required, but DNOs operating in the UK are comparatively well placed when it comes to securing this investment. The energy market in the UK is stable, and energy supply is a privatised industry with established

Electrical Review | September 2016

regulatory processes. These factors make investments in energy infrastructure an attractive proposition.

Nevertheless, DNOs will still have to demonstrate that they can produce an attractive return on this investment which, to put it bluntly, means that they have to operate profitably. And their profitability is now almost completely dependent on RIIO-ED1, Ofgem’s regulation and price control instrument.

RIIO is an acronym for Revenue = Incentives + Innovation + Outputs, a formula that neatly encapsulates its intentions.

In Ofgem’s own words, these are “to drive real benefits for consumers, by providing companies with strong incentives to step up and meet the challenges of delivering a low carbon, sustainable energy sector at value for money for existing and future consumers.” RIIO-ED1, which applies to the energy

34 | TEST & MEASUREMENT

its ability to handle new connections quickly and efficiently without compromising network performance. To help with this, the Engineering Networks Association has produced a series of Engineering Recommendations (ERs).

ER G81 provides a framework and guidance for the installation and connection of commercial and industrial loads. The applicant (that is, the consumer) is responsible for the design, installation and testing, along with the supply of all records and documentation, while the DNO is responsible for approving the design, defining the tests that are needed, and providing the connection to the network. ER G59/3 provides similar guidance for the connection of distributed generation to the network.

These ERs include examples of tests the DNO may require the consumer to perform before providing a network connection, but these are very general. ER G81, for example, states tests must be carried out “to verify the complete installation has been

distribution sector, came into force in April 2015, and will remain in force for eight years.

Energy pricing is regulated by Ofgem and rises are capped, so DNO revenue depends almost entirely on RIIO. Innovation and outputs are measured, and RIIO-ED1 has attractive incentives for exceeding the targets. These are set for many aspects of performance including customer satisfaction, safety, network reliability and availability, environmental impact, social obligations and connection terms.

Incentives are provided for speed of connection and for customer engagement, factors that have a particular relevance in relation to new energy sources. Generating over-capacity in the UK network in 2014 was around 6%, but a programme of closing old environmentally damaging coal-fired power stations and end-of-life nuclear facilities means that the figure for 2015 was just 2.1%. The intention is the new small-scale generators will fill this gap.

The RIIO-ED1 mechanism does not, however, depend on incentives alone; there are also penalties for DNOs who miss their targets. Performance is reviewed retrospectively using agreed key performance indicators (KPIs). Assessment criteria include speed of connection, results of customer surveys and views from stakeholders. Based on the reviews, the Ofgem panel has the power to impose penalties of up to 0.9% of a poorly performing DNO’s revenue, and also to order it to make GSOP (guaranteed standards of performance) payments to customers for late delivery of services.

A key factor in determining the profitability of a DNO is clearly Electrical Review | September 2016

installed correctly and is safe to energise.” Wise applicants will, therefore, look to CIGRE and even IEEE standards for further guidance, as well as considering new test methods, such as partial discharge analysis for cables, that provide dependable results while saving time and money.

Being able to provide the DNO with comprehensive and reliable test data will be increasingly important since connecting an installation that does not operate as expected may impact network performance, leading to the imposition of financial penalties on the DNO. With this in mind, the DNOs can understandably be expected to take the line that, ‘If you can’t prove that you’ve carried out all of the necessary testing correctly, we won’t connect you.’

This article has focussed for the most part on new connections to the distribution network, but it is important to remember that these are not the only criteria against which the DNOs are measured, nor are they the only factors that impact network reliability. To ensure profitable operation, the DNOs also need to monitor and care for key assets that include transformers, circuit breakers and cables.

For all of these, regular testing is the key to maximising availability and service life while reducing as far as possible the risk of unexpected failure. This is particular beneficial for power cables as poor joints and ageing insulation are among the most common causes of failure and downtime in power networks.

However, modern test methods can readily identify incipient problems, allowing them to be remedied before they lead to cable failure.

To cope with the move toward sustainable energy from renewable resources, which means huge numbers of small generators are requiring new grid connections, energy networks are currently evolving faster than they have ever done at any point in their history.

This presents DNOs with many challenges, but RIIO-ED1 means those who successfully address these challenges have excellent opportunities for financial reward. While it may not at first be apparent that testing is a key element to achieving this success, consideration of the points raised in this article will hopefully demonstrate that testing really does have a crucial role to play.

36 | ADVERTISEMENT FEATURE

Energy 2016 preview connecting the energy industry

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onnecting the energy industry like no other event in the UK, Energy 2016 is back for its second year at the Birmingham NEC on 18 – 20 October, as part of the award winning UK Construction Week.

Already backed by industry bodies such as the Renewable Energy Association (REA), the British Institute of Facilities Management (BIFM), the Energy Managers Association (EMA), the Electrical Contractors’ Association (ECA), the Institute of Environmental Management and Assessment (IEMA) and many more.

Uniting all the key business players in the industry, such as architects, project and energy managers, engineers and developers, Energy 2016 will provide a perfect platform to bring together the sector and the wider interconnected industries. Over 8,500 industry professionals attended last year’s event and with a programme of high-profile speakers, seminars, CPD workshops and a Hosted Buyers Programme, this year’s event is not to be missed Registering to attend Energy 2016 is quick, easy and free and can be completed by visiting www.energyliveshow.co.uk. What’s more, by completing the form, trade visitors can access all nine shows taking place at UK Construction Week.

WHAT’S ON AT THE SHOW? Central to the space will be the Energy Hub, a dynamic platform for the show’s comprehensive seminar content. Incorporating a mix of panel discussions, live debates and CPD seminars the Energy Hub content will address the core issues in the industry today as well as give insight into the latest regulations, policies and technologies.

The content has largely been shaped by the outcomes of the high-level debate hosted by Energy 2016 earlier in the year. The event brought together leading energy specialists, including Natalie Bennett, Leader of the Green Party and Steve Fitzsimons, Senior Manager Infrastructure Services at EDF Energy, to discuss the key issues such as energy storage and its role as a crucial facilitator for the future of renewable energy in both domestic and commercial environments.

Nick Blyth, policy and practice Lead, IEMA will be opening this year’s event followed by a three-day seminar programme at the Energy Hub featuring leading industry experts on hot topics and trends.

On day one Bekir Andrews, group sustainability manager at Balfour Beatty will address the need for Adapting to an ever changing energy landscape, followed by an open Q&A session.

The lunchtime panel discussion: Opportunities in residential to commercial energy storage, will explore the relationship, journey and opportunities that exist between residential and commercial energy storage units, speakers include David Pickup, policy manager at the Solar Trade Association, Mark Donovan, principal engineer at UK Power Network Services and Marc Stanton, commercial director at Clean Power Solutions.

Also on day one visitors will have the opportunity to find out about Paving the future of smart cities with energy from footsteps, a revolutionising digital flooring concept by Pavegen. Indeed, the company’s kinetic flooring solution will be used to light up the Electrical Review | September 2016

central bar for all the visitors to see the product in action.

Moving to day two, the lunchtime panel discussion: Working towards a greener and more sustainable future, looks at how the supply chain is working towards more sustainable and energy efficient commercial buildings with a specific focus of meeting the zero carbon target by 2020. Speakers include: Natalie Bennett, leader of the Green Party, Andrew Mellor, partner at PRP, Mark Harris, divisional building technology director at Kingspan Insulated Panels and Sara Kassam, head of sustainability development at the Chartered Institution of Building Services Engineers (CIBSE).

The closing session on day two, chaired by Tony McNally, managing director at Climate Change Solutions and speakers including Jon Hunt, marketing manager at Toyota and Lexus Fleet Services, Matthew Dear, partnership manager at Hydrogen London – Greater London Authority and Tony McNally, managing director at Climate Change Solutions, will give an overview of the business opportunities that hydrogen and fuel cell technology can offer.

Fuel cells are already powering homes, work places and public buildings around the world – with many examples in universities and hospitals. They are also playing a role in the de-carbonisation of transport including cars, buses, taxis, heavy-duty vehicles, trains and even airplanes. This technology will also be key for the implementation of new de-centralised energy systems offering support for grid infrastructure and balancing of supply.

Day three will start with a focus on renewable energy and the biomass industry within the UK. Government incentives are being “reformed” and new innovative solutions have recently become available that will help reduce waste costs and generate energy.

During the Seminar, THE CHANGING FACE OF BIOMASS, a leading biomass industry figure, David Coyne, CEO of Ashwell Biomass, will discuss developments within the biomass sector and focus on how these are likely to affect and benefit the market.

Two great panel discussions will also be on the programme for the final day. The first one will ask: ARE EV’S THE SOLUTION TO RESOLVING THE ENERGY CRISIS? 2016 has seen a massive growth in the EV market with developments from the likes of Tesla, Nissan and even BMW. Speakers for this seminar include: Christopher Jackson, director at Flexisolar, Michael Wayne Bexton, head of energy projects at Nottingham City Council and Erik Fairbairn from Pod Point.

The second discussion, The great innovation pitch, will look at the latest innovations and forecasts for innovations in Energy.

Confirmed speakers are: David Pybus, business development executive at Pavegen and Matthew Lumsden, managing director at Connected Energy.

In addition to the Energy Hub, the Renewable Energy Association (REA) will also host a range of half-day conferences throughout the show, covering topics such as energy storage and renewables in the built environment. What’s more, Energy 2016 will also host a VIP lounge bringing a string of high profile buyers and visitors to the show. The Energy 2016 VIP section will be located within the show’s footprint offering exhibitors the unique opportunity to interact with some of the biggest players in the industry.

ADVERTISEMENT FEATURE | 37

WHO’S EXHIBITING AT THE SHOW? Doubling in size from last year’s event, Energy 2016 boasts an impressive line up of industry leading exhibitors and is not to be missed by anyone in the sector.

Ranking amongst the top six power companies in the country, Scottish Power provides over five million households and businesses across the UK with power and will bring its wealth of expertise to this year’s event. With over a hundred years experience there are few companies who understand the energy sector better.

One company making ground-breaking steps in the energy sector is Pavegen. The company delivers an innovative underfoot, kinetic off-grid energy solution that converts footsteps into power and has to be seen to be believed. Excitingly, the company will be unveiling the latest iteration of its technology, known as V3, at this year’s event. What’s more, Pavegen technology will be integrated into the flooring of Smart Buildings 2016 with the resultant energy used to power the rest of the event.

Another company attempting to redefine the way we think about energy is RES Limited, a leading independent renewable energy provider. The company will be showcasing its expertise in developing, engineering, constructing, financing and operating projects around the world.

Working on breakthrough innovation with a host of high profile companies, Flexisolar is widely considered a leader in the field of solar technology. With nearly 25 years of expertise in steel

structures and with over 2,500 successful installations nationwide the company specialises in the integration of solar panels and carport installations of over 500 spaces or 1MW at less than £1/W. Other company’s signed up to exhibit at this year’s Build Show include British Gas, Fluke UK, Eaton, Minus7 and Clean Power Solutions (CPS) to name but a few.

Nathan Garnett, Event Director for Energy 2016, commented: “The energy sector is one of the most important and dynamic industries in the UK. The progress and innovation of the sector has massive implications for the future of our country and so we are keen to encourage growth and prosperity in any way that we can. We believe that with the help of the show’s many partners and exhibitors, Energy 2016 can play a key role in the development of a greener, smarter and more efficient Britain.”

Taking place at the Birmingham NEC from 18 – 20 October, the award winning UK Construction Week combines nine shows in one location. With over 24,000 trade visitors last year - a figure expected to double at this year’s event - the show boasts over 650 exhibitors.

Visitors are able to attend Timber Expo, the Build Show, Civils Expo, the Surface and Materials Show, Energy 2016, Plant & Machinery Live, HVAC 2016, Smart Buildings 2016 and Grand Designs Live.

Energy 2016 www.energyliveshow.co.uk www.websitegoeshere.com www.electricalreview.co.uk

38 | RENTAL

A smooth operation There are three main pressures every data centre operator is all too familiar with: economy, HQYLURQPHQW DQG HIĂ€FLHQF\ ([SHFWDWLRQV ZLWKLQ GDWD FHQWUHV DUH PXFK OLNH DQ\ RWKHU EXVLQHVV LQ WKDW HIĂ€FLHQF\ QHHGV WR EH PD[LPLVHG DQG FRVWV QHHG WR EH UHGXFHG ZKLOVW VHUYLFHV DUH PDLQWDLQHG DW WKH KLJKHVW SRVVLEOH DQG FRQVLVWHQW OHYHO

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ithin this sector there are additional issues to consider – not least of which is the health and safety of the technicians who maintain the mechanical and electrical systems and ensure they operate at peak efďŹ ciency.

Skilled initial deployment of the equipment is a must, and a full and comprehensive schedule of preventative maintenance will pick up on any slight issues before they develop into more serious problems, and therefore help to avoid costly asset failure.

It’s therefore critical for operators to ensure they have the right technical back-up in place from the start.

When electrical engineering provider Technord ďŹ rst began trading in 1988, it rapidly became the preferred global partner of important players in pharmaceuticals, food-processing, ďŹ ne chemistry, the extractive industry, glassworks, energy and infrastructure. While its primary focus began with research and development in industrial electrical projects, the company has leveraged its knowledge in manufacturing processes and the related industrial standards, to bring together all the skills needed to design, manufacture, install, commission and maintain industrial equipment and networks across the ďŹ ve continents.

Now covering automation and industrial computer systems, Technord has spent the past nine years making a name for itself in the data centre market. Since 2007, the succession of different data centre projects have rapidly propelled the company’s Network Department to where it currently sits as an indispensable asset to the group. With 80 people now working

Generally speaking, all Technord’s ďŹ bre optic installations are certiďŹ ed and repaired using OTDRs

in this department, including subcontractors, the company is increasingly involved in the different stages of design, installation, maintenance and renovation of data centres and IT networks.

Technord’s network teams hold multiple certiďŹ cates, including CertiďŹ ed Panduit installer (CPI), TE Connectivity – Networking, Design and Installation (ND&I), and Corning Optical Communications Network of Preferred Installers (NPI). The teams never leave a project without fully verifying and certifying all their installations, and they do this using validation tests that comply with the applicable standards, such as OTDR, iOLM, power meter (OLT), test channel, etc.

Designing, installing and maintaining large-scale data centres demands a wide range of skills, and projects often include the installation of ďŹ bre optic cables, copper cabling and wireless networks, safety systems, ďŹ re protection systems, UPS systems and more. Each intervention to deploy structured ďŹ bre optic cabling in a data centre involves placing several thousand ďŹ bre optic cables, which technicians must fuse together and certify.

With the continued requirement for expansion and scalability Electrical Review | September 2016

40 | RENTAL

in the data centre, Technord’s structured cabling services must provide reliability, manageability and flexibility, as well as scalability to accommodate the need for more bandwidth in support of future applications. Generally speaking, all its fibre optic installations are certified and repaired using OTDRs (Optical Time Domain Reflectometers). These devices are the basis of the network technicians’ equipment as, in addition to being incredibly efficient, they can do anything from giving a general optical assessment of a segment, to showing loss from a specific event (splicing, connecting, macro bending, etc.). In large-scale data centres, ribbon fibre optic cables are the norm, and Technord regularly hires a fusion splicer for 12-strand ribbon fibre optic cables from Electro Rent, one of the largest global organisations devoted to the rental, leasing and sale of new and used general purpose electronic test equipment.

Dating back to 1965, Electro Rent has become a major presence in the data centre market when it comes to the supply of test and measurement equipment. Mike Sullivan, UK business manager at Electro Rent Europe, put it best when he commented the company’s focus has been a natural result of the demand in the market: “From the first beginnings of the internet, data centres have been a necessity as the storage capacity on individual computers is limited. Many companies responded to this by building vast data centres that could provide that storage capacity for both private and professional end users.

“That storage is more critical now, especially for operators, as applications such as IoT have significant storage demands – and these are the types of customers we’re in the best position to help,” Sullivan continued. “Our high value instrumentation includes ribbon splicers, 100G/10G/1G testers that measure throughput, PMD, CD characterisation of the fibre, Data Acquisition – for acquisition of any possible electrical signal, power quality analysers that detect anomalies and recorders that deliver a permanent sample of electric network.”

The most important point, said Sullivan, is by renting these instruments through Electro Rent, operators can benefit both technically and financially. “Each instrument comes with a quality assurance guarantee and is calibration tested before each use. The instruments a subcontractor uses may well have valid calibration, but how can operators be sure that the device is in the same good condition it was last month and that it’s 100% operational? The answer is that they can’t,” Sullivan explained.

“Renting offers that guarantee and reduces the risk factor for all involved, adding a new dimension to the cost of ownership.

Financially, there are many benefits too as companies need to consider the fact that any new equipment they purchase will depreciate over time. By renting, they can be assured of the latest generation of instrumentation.” he added.

Through its Data Centre Department, Technord has been working with Electro Rent since 2010, and mainly hires equipment related to fusion splicing, and test and network certification equipment – reflectometers, power meters, and inspection cameras for fibre optic cable connectors, for example.

“With all our customers, we must prove that our equipment is suited to the work before we can even begin it,” commented Pierre Fokan, network technician at Technord. “Calibration and Electrical Review | September 2016

Mike Sullivan

conformity certificates are therefore essential requirements and we need partners who can provide us with properly functioning and calibrated machines with fast delivery times. When one of these machines approaches its calibration expiry date or if it fails, it is critical that we can depend on receiving an immediate replacement for it. This is the huge advantage of hiring.”

Fokan continued by stating while the long-term cost of hiring is, of course, considerable, if that is compared it to the annual cost of calibration, standardisation and any repairs (the company deals with equipment that works in microns) and flexibility (for one-off projects of a few days or weeks), they can see that hiring becomes worthwhile.

“From our perspective, we have our own equipment that we can use to carry out virtually all requests and repair work.

However, for projects that are extremely demanding in terms of delivery times, and where we need to work with multiple machines simultaneously, hiring is strongly advisable,” Pierre explained, adding that with the option of renting this vital equipment from Electro Rent, Technord can now meet the client’s needs for simultaneous deployment at different locations, without having to increase the cost of its tooling budget. Furthermore, paying only for the equipment needed at any given time, and having access to the newest models, are some of the factors that pushed Technord to use the rental option, especially with the certified equipment.

“Electro Rent Europe have never disappointed us in the quality of the products we hire from them. We have always received equipment with its calibration certificate in good order, and there is a suitable aftersales service and good understanding between each party, which is not to be ignored,” concluded Pierre Fokan.

42 | TRANSFORMERS/TECHNOLOGY TO MARKET

Transformer refurbishment beneďŹ ts port terminal 0HGLXP WR ORZ YROWDJH WUDQVIRUPHUV DUH WKH Ă€QDO FUXFLDO OLQN LQ WUDQVPLWWLQJ SRZHU IURP WKH 1DWLRQDO *ULG WR WKH IXQFWLRQDO HTXLSPHQW VR WKH LPSDFW RQ D EXVLQHVV RI D WUDQVIRUPHU IDLOXUH FDQ EH YHU\ VLJQLĂ€FDQW 6XO]HU ZDV UHFHQWO\ FRQWUDFWHG WR FRPSOHWH D UHIXUELVKPHQW DIWHU WKH FOLHQW ZDV JLYHQ D SURKLELWLYH OHDG WLPH IRU D QHZ WUDQVIRUPHU E\ WKH RULJLQDO HTXLSPHQW PDQXIDFWXUHU 2(0

Sulzer was recently contracted to complete the refurbishment of a transformer for Redcar Bulk Terminal

R

edcar Port, owned and managed by Redcar Bulk Terminal (RBT), is situated on the South bank of the River Tees and handles a wide range of bulk cargoes.

It is the deepest port on the East coast of the UK and operates 24/7 all year round, with equipment capable of unloading in excess of 44,000 tons in a working day. As such it has a signiďŹ cant reliance on electrical power in order to maintain efďŹ cient operation.

RBT has worked with Sulzer over many years and they have formed a good working relationship, especially with the

Electrical Review | September 2016

Middlesbrough Service Centre which is situated very close by.

So, when an 840 kVA transformer failed with a primary winding shorted to earth, the ďŹ rst call was to Sulzer so the problem could be investigated and resolved at the earliest opportunity.

Initially, the Sulzer engineers were contracted to investigate the cause of the fault and to provide an initial report with recommendations for the best course of action. Ordinarily the quickest, if not the cheapest, repair is a direct replacement but unfortunately 3.3 kV transformers are not always available on short lead times.

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44 | TRANSFORMERS/TECHNOLOGY TO MARKET

For this particular application the most efficient resolution was a complete refurbishment that would effectively deliver a virtually new transformer back to RBT. Fortunately, Sulzer service centers are fully equipped with both the facilities and the engineering expertise to complete these projects in-house, giving the client peace of mind.

Steve Bonner, electrical maintenance engineer at RBT, commented:”Transformers such as this one provide power to a wide range of equipment so any failure will have some significant consequences for us in terms of productivity. Clearly, speed of repair is crucial, especially if we need to hire large generators to keep the plant operating.”

Arthur Grant, service centre manager at Middlesbrough adds: “For this particular project it was necessary to develop new formers and racking in order to create the new windings with exactly the right dimensions. This is very important because in this design of transformer the low voltage windings sit inside the high voltage windings and they share the laminated core.”

Once a new winding has been finished it is tested before being assembled with the other windings to create a high voltage circuit which is connected in star configuration and a low voltage circuit connected in delta. The new coils are located on the laminated core and then tested again to ensure the correct connections have been made and the insulation is meeting the required standards.

The Middlesbrough Service Centre completed the project as quoted, with an eight-week turnaround, compared to a lead time of several months for a new transformer. Arthur Grant concludes: “We have a close working relationship with RBT that has been built up over many years. Being located almost next door means their engineers can easily come in and review progress on any project. We communicate on a regular basis about the progress of any repairs which means the client can plan accordingly and use their resources more efficiently.”

Sulzer service centers are fully equipped with both the facilities and the engineering expertise to complete these projects in-house

Electrical Review | September 2016

PRODUCTS | 45 NEW LINEAR CURRENT REGULATOR AND CONTROLLER FAMILY

ON-LINE PARTIAL DISCHARGE MONITORING SYSTEM FOR ROTATING MACHINES

NEW UNIVERSAL TEST SET REVOLUTIONISES RECLOSER CONTROL TESTING WORLDWIDE

The new Mongemo on-line partial discharge (PD) monitoring system from Omicron continuously assesses the dielectric condition of stator insulation in rotating machines under load, such as turbo generators, hydro generators and electrical motors. The permanently-installed system collects and analyses PD data over time and identifies insulation defects that could lead to dielectric failure and machine outages.

The Mongemo PD monitoring system is customisable to match the exact requirements of various rotating machines.

It consists of coupling capacitors for PD detection, a 4-channel PD acquisition unit, and a central computer with monitoring and PD analysis software. With the convenient web interface, users can remotely configure the monitoring system, view real-time data and historical trends, and analyse the collected raw data.

All utilities (including municipalities and cooperatives), service providers and manufacturers will now benefit from the smart plug-and-play recloser control test set Arco 400. With this ground-breaking solution, users will easily master the challenge of testing all settings to ensure correct functionality in less than 15 minutes (including the test setup) and in any weather condition. Furthermore, GPS synchronised injections to test distribution automation schemes are also possible.

At 22lbs (10kg), the lightweight but rugged ARCO 400 is equipped with 3-phase 12.5 A and up to 6-phase 150 V amplifiers. It is designed for outdoor usage and by using smart recloser-specific test adapters it is an ideal universal tool for testing controllers of any brand in the field. It covers all recloser and sectionaliser control functions and provides maximum testing flexibility, without any additional boxes or accessories.

Omicron electronics www.omicron.at

Omicron Electronics www.omicronenergy.com

PUSHING LIMITS ON DATA CENTRE EFFICIENCY AND RELIABILITY

SOLAR PV TEST COMBINED WITH I-V CURVE ANALYSIS

REMOTE AUTOMATION TECHNOLOGY FOR MACHINES & PLANTS

Scuderia Ferrari is the racing team division of the world famous Ferrari sports car manufacturer.

Ferrari commissioned its first Schneider Electric / APC data centre in 2004. That data centre was equipped with a cooling capacity of 20kW per rack. The InfraStruxure modular / scalable system, which still is available as a popular offering today, serves as the physical infrastructure supporting computational fluid dynamics platform and the simulations essential to the aerodynamic modeling of Ferrari’s championship Formula One cars.

The “on-demand” architecture of InfraStruxure provides power, cooling, management and services in a rack-optimised design, which is scalable in accommodating server capacity. Such scalability eliminates much of the planning guesswork, reduces installation downtime risk, and allows for the optimisation of today’s high-density computing installations.

The integrated cooling system consists of In-Row precision air conditioners, and high-efficiency Hot Aisle Containment Systems (HACS).

A brand new concept in solar PV test instrumentation combines accurate I-V curve analysis with essential electrical testing for the fast and effective commissioning, O&M and diagnostic testing of all types of solar PV installations.

Using simple push button operation, the new multi-function PV200 from Seaward carries out all the electrical tests required

by IEC 62446:2016, including open circuit voltage, short circuit current, maximum power point voltage, current and power, and insulation resistance.

Alongside the electrical tests, the PV200 also performs I-V curve measurements in accordance with IEC 61829:2015 to determine if the measured curve deviates from the expected profile, highlighting the need for further analysis or fault finding. The fill factor can also be assessed.

Wieland Electric’s Podis CON is a modular power bus system for decentralised power distribution, which simplifies the planning, procurement, installation and maintenance of the power distribution systems. For remote power distribution and automation, economy and high flexibility are the key factors in modern system planning. For power distribution, innovative approaches and solutions are imperative as intelligent installation systems replace the classical star distribution.

Remote automation allows the installation of switching and control functions near the consumer device in the field and avoiding costly central cabling.

In this way, you follow the trend set by fieldbuses.

Energy and auxiliary power or the ASi bus signal are distributed in the field by a 5+2 pole flat cable.

Schneider Electric • 0870 608 8608 www.schneider-electric.co.uk

Seaward Group • 1191 586 3511 www.seaward.co.uk

Wieland Electric • 01483 531213 www.wieland.co.uk

Allegro MicroSystems Europe has announced two new adjustable linear current regulators for driving automotive LED arrays. Allegro’s AEC-Q100 qualified A6274 and A6284 devices include many new features designed to further enhance the existing family of linear LED drivers.

These new low-EMI ICs integrate an optional pre-regulator gate drive to dynamically and linearly control an external P-channel MOSFET, which extends the output power capability of a linear LED driver by moving most of the power losses to an external power FET. This eliminates the need for a DC/DC switching solution and its associated inductor, diode and higher EMI. The ICs sink up to 60 mA (A6274) or 120 mA (A6284) from each of six LED pins, and may also be paralleled to drive higher current LED strings for a total of up to 720 mA. In addition the multiple ICs can be configured in parallel for large lighting systems.

Allegro MicroSystems Europe Ltd +33 (0) 4 50512359 www.allegromicro.com

www.electricalreview.co.uk

46 | PRODUCTS ???

TWO-WIRE SIMPLICITY Innovative security products supplier, ESP, is expanding its Aperta range of access control products with the launch of the new Aperta Audio 2-Wire Kit (APKITAO), which is designed to satisfy demand within the entry level segment of this growing sector.

The Audio 2-Wire Kit is easy to install and comes complete with a vandal-resistant and weatherproof external call point audio door station, a power supply unit and the internal handset. It offers 2-way audio with superior clarity and will operate at up to 100 metres wiring distance. The system has the capacity to support lock release switching, and can be expanded to two handsets, with an additional handset (APKITAOH) available separately.

It utilises simple 2-Wire installation technology, which offers many benefits and advantages over traditional door entry systems.

ESP • 01527 515150 www.espuk.com

NEW EUROPEAN ???

HQ AND DESIGN CENTRE Commenting on the move, Mark Needham, Fulham’s European vice president for sales said, “This reflects Fulham Group’s strategy for Europe in that we have a meaningful European presence including a design centre for developing LED drivers for the market and the people to better serve our growing European distributor and OEM customer base.

“Europe is a key market for LED luminaire design and having a team of engineers in the Netherlands allows us to more quickly respond to market trends”. He added, “This is an exciting time for us to fully market our now much expanded range of top quality LED drivers and promote the Fulham lighting brand across Europe”.

In addition to the R&D team, Fulham’s new European headquarters also incorporates sales administration and customer service.

Fulham Company • +31 72 572 3000 www.fulham.com

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A FLEXIBLE SOLUTION On a daily basis Manx Utilities electricians perform complex electrical tests and maintenance work to keep its systems working flawlessly.

It had a problem finding a reliable and safe solution to measure the current flowing through Aculock fuses in a street level substation. It was obvious to engineers regular clamp meters would not reach around the fuses and conventional flexible rogowski coils were just too thick to pass through the tube.

Martindale demonstrated a solution to these testing issues. Andy Kemecsei, Key Account Manager at Martindale Electric, met with Manx Utilities to demonstrate the new CM100 Flexi-Clamp.

Prior to testing the CM100 Flexi-Clamp no other clamp meter lived up to the task as they were simply too thick and would not fit.

The CM100 is the only flexi clamp that they have found that is small enough in diameter to pass freely through the tube built in to the fuse in the LUCY Fuse Carrier for this purpose.

Martindale Electric • 01923 441717 www.martindale-electric.co.uk

???DESIGNERS GET ELECTRICIANS AND READY FOR THE HALOGEN BAN

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MONITORING SOLUTION SELECTED FOR POWER CABLE PROJECT

??? AND WIRELESS SWITCHING DIMMING SOLUTIONS

Are you ready for the halogen ban coming up in September 2016? That is the challenge being put to electricians and lighting designers on Megaman’s new website - www. planfortheban.eu – that goes live today.

With halogen directional lamps being phased out across Europe from September 2016, the new website is designed to help electricians communicate the changes to customers and to give lighting designers an overview of the incredible benefits of the latest LEDs. www.planfortheban.eu offers advice for electricians and lighting designers to help them prepare to educate their customers about the benefits of LEDs compared to halogens. A brochure for end users explaining how LEDs can save them money, energy and reduce CO2 is available to download.

Elia, the power transmission system operator in Belgium, has selected a permanent on-line partial discharge (PD) cable monitoring system from Omicron for its Stevin project.

This project is a major undertaking by Elia to reinforce the high-voltage (HV) power grid in Belgium’s Flanders region.Installation of the Omicron cable monitoring system will start in the spring of 2016.

One part of the extensive Stevin power grid renewal project consists of laying four 380 kV power cable circuits in the ground, each over a length of 10 km between the grid substations Gezelle and Van Maerlant in Flanders. The Omicron PD monitoring system will be permanently installed at each of the terminations and joints along these buried HV cable circuits to continuously assess PD activity and insulation condition in the cables.

The monitoring system will also assess cable sheath currents during standard operation to detect fault conditions.

Scolmore has added two new products to its lighting range. The iNELS RFDEL-71F dimming control and the iNELS RFSA-61F switching control, are part of Scolmore’s Flow range of lighting management products, and they introduce Click iNELS wireless technology to the Flow system, to offer a simple to install solution to adding dimming and switching control to lighting products.

Both products offer superior performance, with the dimming control capable of dimming and switching up to 160W of load including LED, while the switching control - rated at 16A - is suitable for switching most domestic and commercial loads.

They feature an in-line plug and play control, pre-fitted with the trademark blue Click FLOW connectors, which also allows for simple connection and disconnection for installation purposes, as well as for periodic testing to be carried out.

Megaman • 01707 386000 www.megamanlighting.com

Omicron www.omicronenergy.com

Scolmore • 01827 63454 www.scolmore.com

Electrical Review | September 2016

CLASSIFIED | 47

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