TRANSFORMER SERVICES
Dynamo provides a comprehensive range of services for transformers including installation, maintenance, refurbishment, and disposal. Our team of transformer experts is fully trained and has the required safety qualifications and certifications necessary to complete your project. The service division can perform on-site inspections, diagnostics and maintenance activities in addition to on-site refurbishment or repair work.
Dynamo also offers technical services, consulting services, and project management. We work with our clients to establish and execute long-term service plans to maintain their transformers and on-load tap changers.
With more than 20 years of experience in the industry, our knowledgeable staff can provide engineering support, including specification and condition assessment, or field support including the assembly and filling of new units.
From failure analysis, condition assessment, replacement of components, or the supply of spare parts, our access to records and drawings for most legacy brands will ensure we have a solution for all your needs
Our Reputation:
Dynamo is a renowned transformer service provider, recognized for our commitment to excellence. Our proven track record includes successful project completion, adherence to industry standards, and consistently exceeding client expectations.
Our Expertise:
Transformer installation and assembly
Repairs, vacuum filling, and oil processing
Field service team with hands-on expertise
Fully staffed engineering department supporting every project
Operation and maintenance of our advanced oil processing equipment
Transformer Field Services:
Assembly and Installation
Upgrades, Repairs, & Refurbishment
Testing and Commissioning
Decommissioning and Disposal
Gasket Replacement and Leak Repair
Tap Changer Refurbishmentand Repair
Vacuum Filling and Processing
Online Degassing and Moisture Removal
Fuller’s Earth Reclamation
Internal and External Inspections
Oil Sampling and Lab Analysis
Transformer Support Services:
Transformer Design Services
Transformer Specification
Technical Evaluation
Independent Tender Evaluation
Condition Assessment
Failure Analysis
Witness Testing
Maintenance Program Development
Project Management
Factory / Site Inspection Services
Accessory Sale: Spares, Parts and Equipment
TRANSFORMER OIL TREATMENT PLANT
Dynamo’s OTP is designed to treat electrical insulating oil by removing particulates, moisture, and dissolved gases. This unique and compact version is much smaller than traditional industry standard units while offering the same high level performance.
Performance Capabilities:
Transformer oil containing 10% dissolved gas and 50 ppm total water content can be degasified and dehydrated to the in SINGLE pass at the full flow rate of 6,000 L/Hr to:
Standard Method ASTM D-1816 ≥ 50 KV
Standard Method ASTM D-877 ≥ 40 KV
Total Gas Content:
Standard Method ASTM D-2945 < 0.25%
Total Water Content:
Standard Method ASTM D-1533 < 10 ppm
Filtration:
99% of all particles 0 5 microns
Specifications:
Flow Rate: 6,000 L/Hr. The rate is adjustable from 30 to 100% of the rated flow via a VFD Controlled pump
Typical Operating Temperature: 88F° (49C°) One Single Pass
Vacuum System: > 3,000 CFM
Typical Process Vacuum: 5 Torr to less than 0.5 Torr (500 microns)
Particulate Filtration: 0.5 micron inlet filter
Heater System: 80 kW of electric inlet oil
heat controlled in three (3) stages
Water Content, Dry Out: Two (2) hygrometer probes interface with the control data
logging system recording moisture content, moisture saturation, and temperature of the incoming and outgoing oil
ONLINE PROCESSOR FOR UNITS
> 1.5 MVA or 2000 L
This unique portable online oil filtering system is designed for short and long term unattended operation on large energized power transformers. It utilizes large capacity adsorbent filters to reduce moisture in the insulation down to very low levels
The water removal filters are redried daily by the system. This processor can also remove all dissolved gases from the transformer via a selectable / optional vacuum degassing cycle.
The benefit of this specially designed filter adsorption water removal method over the alternative continuous high vacuum system is that it does not remove the nitrogen blanket from the transformer, disturb the oil DGA, remove lighter fractions or aromatics from oil therefore not altering its chemical qualities.
Performance Capabilities & Benefits:
Three (3) selectable online treatment cycles: Analysis, Degassing, and Water Removal
Portable unit that can be easily rotated between transformers
Designed for long term unattended operation on energized transformers
Multiple interlocked safety cut-outs automatically shut down and isolate the system from the transformer in the event of a problem
Remote communications allow for remote monitoring, operation, alarming and data download
No effect on oil DGA during analysis and water removal cycles
No requirement to take outages at any stage (assuming working clearances are maintained)
Specifications:
Flow Rate: 396 US GPH. The rate is selectable between two speeds, 50% or 100% of the rated flow
Moisture Reduction : ≤ 2 ppm
Gas Reduction: ≤ 0.25%
Particulate Reduction : ≤ 1 µm
ONLINE PROCESSOR FOR UNITS < 2.5 MVA
This portable online oil filtering system is designed for long term unattended operation on smaller energized power transformers.
This degassing system utilizes a small vacuum chamber to remove moisture, gas, as well as soluble acidic compounds from transformer oil.
Specifications:
Flow Rate: 4.5 L/min. (6,480 L/day)
Pressure in Vacuum Chamber : 2 mbar
Moisture Reduction : ≤ 3 ppm
Gas Reduction: 86% on single pass
Particulate Reduction: ≤ 0.8 µm
Portable unit that can be easily rotated between transformers
Designed for long term operation on energized power transformers
The V30 degassing system can remove up to 86% of all gases in one pass through the vacuum chamber
No requirement to take outages at any stage (assuming working clearances are maintained)
Supply voltage required is 120 V, 15 A
FULLER’S EARTH OIL REGENERATION AND
RECLAMATION
SERVICES
Dynamo offers full oil regeneration options using the Fuller’s Earth method. The Fuller’s Earth method is used for removing acids and soluble surface-acting contaminants This process will increase the Interfacial Tension (IFT) of oil and reduce the Power Factor (PF) back to desired levels. The special media is used to trap and hold resins, acids, and surface-acting contaminants.
Extended equipment life
Reduced maintenance costs
Removes all resins, foreign matter, acids, and oxidization products
Restore oil’s primary physical parameters
Media can be reactivated once saturated
Allows for the addition of oxidization inhibitor to restore levels to standard levels
When the treatment is complete, the regenerated oil will meet or exceed international standards for new oil. These properties include lower acidity, improved PF, IFT, and oxidation stability.
DESIGN. CONSTRUCT. MAINTAIN.
OUR COMPANY
reates great depth to
our team and allows us to provide cost-effective solutions to our clients.
Our organization is centred on field experience and this has earned us the
enviable reputation as the industry leader in executing time-critical power
and control projects.
We believe in partnering with our key clients. We are committed to your
success and believe our success comes from providing value to your
operation
From concept through completion, to post-project support, we are dedicated
to managing the needs of your power and control systems through the entire
life cycle of the equipment.
