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2011 IIEE Board of Governors and Officers National President VP-Internal Affairs VP-External Affairs VP-Technical Affairs National Secretary National Treasurer National Auditor Region I Region II Region IV Region V Region VI Region VII Region VIII Region IX Immediate Former President Officer-in-Charge

Armando R. Diaz Jules S. Alcantara Gregorio R. Cayetano Alex C. Cabugao Ma. Sheila C. Cabaraban Larry C. Cruz Florigo C. Varona Francis R. Calanio Virgilio S. Luzares Roselyn C. Rocio Ronaldo D. Ebrada Marlon T. Marcuelo Lelanie T. Mirambel Rey G. Paduganan Victorianito E. Teofilo Gregorio Y. Guevarra Ramon P. Ayaton

IIEE National Secretariat Department Heads Administrative Finance Technical Marketing & Membership

Niellisa Joy B. Bandong Karen T. Sacdalan Ramon P. Ayaton Allen M. Pido


President’s Report


IIEE NEWS • Chapter and National News


Cover Story • IIEE Holds 36th Annual National Convention and 3E XPO 2011


Chapter Bits 22

Publications Committee Chairman: Members: Overseer:

Robinson S. Uy Ernesto M. Cabral Marvin H. Caseda Glynn Andy O. Gayman Dr. Allan C. Nerves Ronald Vincent M. Santiago Alex C. Cabugao

The ELECTRICAL ENGINEER The Electrical Engineer is published quarterly by the Institute of Integrated Electrical Engineers of the Philippines, Inc. (IIEE), with editorial and business offices at #41 Monte de Piedad St., Cubao, Quezon City, Philippines. Tel Nos. (632) 722-7383, 7273552, 412-5772, 414-5626, Fax Nos. (632) 721-6442 & 410-1899. Website:, E-mail: The present circulation of the magazine is 30,000 copies per issue to members and industry stakeholders. The Electrical Engineers Editorial Board Chairman Editorial-in-Chief Associate Editor: Technical Consultant: Administrative Officer:

Alex C. Cabugao Robinson S. Uy Ernesto M. Cabral Dr. Allan C. Nerves Ramon P. Ayaton Editorial Staff

Editorial Assistant Graphic Artist

Jenelyn C. Pajutining Elwood B. Perez

Advertising and Marketing Account Executive


Joan Q. Delos Santos 727-3552 loc. 101 410-1899

Technical Feature • Motor Performance Date Electric Power Research Institute



Modelling and Simulation of Active Power Filters for Harmonics Compensation, Voltage Sags and Swells Mitigation and Power Factor Connection By: Michael Pacis, Jesus Martinez & Jaypee Tecson

• Power Quality Case Study: Harmonic Problem


• Equipment PQ Performance Standards By: Dean Arnold S. Sempio & Rolan S. Mercado





iews or opinions expressed by the authors of letters, articles and research studies published in The Electrical Engineer DO NOT necessarily reflect the views of the Institute of Integrated Electrical Engineers of the Philippines, Inc. (IIEE). The IIEE trusts the integrity of these authors. The IIEE exercises due review diligence but it is possible that the contents of the articles contributed may not be verified due to time constraints. Articles or visual materials may not be reproduced without written consent from IIEE. The IIEE reserves the right to accept or refuse submitted materials for publication. Articles, reactions and feedback from readers may be sent through e-mail at

To Our Readers From the Desk of the

Vice President for Technical Affairs Let us welcome the year 2012 with a renewed commitment of service to the members of the Institute! The 4th Quarter issue features the biggest event annually – the 36th Annual Convention and 3E XPO 2011 held November 23-26 at the PICC. With a record breaking attendance, the event was truly a success for it was a venue to network, share knowledge to the industry practitioners, a reunion of friends, classmates, coemployees among others. Our sincerest thanks to all for joining the convention.

Schedule of Activities 1st Quarter of 2012 1st Executive Committee Meeting January 7, 2012 Tagaytay, City Planning Session and 2012 Board of Governor’s Orientation January 20, 2012 DAP, Tagaytay City 1st Regular Board Meeting January 21, 2012 DAP, Tagaytay City

We share with you in this issue the last part of EPRI’s technical paper-Motor Performance Data and the EE Mag sincerely extends its thanks to EPRI for the publication of relevant technical reports and researches.

2nd Executive Committee Meeting February 3, 2012 IIEE National Office

Our congratulations to the Board of Governors and the Chapter Officers for 2012. The Electrical Engineer Magazine as always will never tire to seek your support and cooperation.

2nd Regular Board Meeting February 18, 2012 IIEE National Office

To the organizations, industry partners , advertisers and kind individuals, we express our sincerest gratitude and appreciation for making the publication of Electrical Engineer Magazine in 2011.

1st Nominating Committee Meeting February 18, 2012 IIEE National Office

In behalf of the Electrical Engineer Magazine Editorial Board, thank you very much. ALEX C. CABUGAO

3rd Executive Committee Meeting March 2, 2012 IIEE National Office Western Visayas Regional Conference & 3rd Regular Board Meeting March 23-24, 2012 Boracay,Aklan


From the Office of the National President ENGR. ARMANDO R. DIAZ

Fourth Quarter 2011 Welfare

B. IIEE Website

A. IIEE Trainings The IIEE Continuing Professional Development Committee conducted the following technical seminars during the first three quarters of 2011:

Through the efforts and cooperation of the IIEE Committees, National Officers and Regional Governors, the latest updates and developments in the Institute can now be viewed in the IIEE Website.

1. Substation Design 2. National Building Code 3. PLC Programming Methods and Its Application 4. Protective Relaying and Coordination 5. Renewable Energy: Solar PV System 6. Electrical Power System Design of High-Rise Residential and Commercial Buildings 7. SCADA System 9. PLC Programming Methods and its Applications 10. Applied Short-Circuit Analysis in Commercial and Industrial Power Systems The technical seminars have an objective of updating the members on the latest trends in the electrical profession, and of enhancing the professional competencies of the members.


Visit the IIEE website at www.iiee. and be informed on the latest developments in the Institute and the industry. C. Progress of the IIEE New Building The IIEE New Building Committee is in the process of acquiring permits and other requirements. Furthermore, the committee presented a feasibility study during the 6th Regular Board Meeting in Cagayan De Oro. The feasibility study included the proposed Marketing Strategies to solicit additional funds for its construction and maintenance of the new building. D. IIEE Council of Student Chapters (IIEE-CSC) The IIEE-CSC successfully held the following activities during the first three quarters of 2011:


4th QUARTER 2011

1. The 12th National Student Convention (NSCON) held last February 23-25, 2011 at the Adamson University in Manila. The NSCON featured a Field Trip, 14th Mega Seminar, 7th Skills Olympics, 4th IIEE CSC Pageant, Chapter Representatives Meeting, Exhibits, 8th PEC Quiz Show and the Awarding of Student Achievement Award and Most Outstanding Student Chapter Award for 2011. 2. The 25th IIEE CSC Annual Leadership Training and Workshop on May 20-22, 2011 at Rand Rich Resort in Ternate Cavite. 3. The 7th Regional Student Conference (RSCON) last September 22-24, 2011 that featured the 25th Regional Quiz Show and 11th Regional Math Wizard, which were simultaneously conducted in the nine (9) regions of the Institute. 4. The 4th Mid-Year Convention held last September 30 to October 1, featuring an Educational Field Trip and Mega Seminar.


E. Continuing Professional Education In reference to The Philippine Constitution, Article XII, Section 14 “the Continuing Professional Education (CPE) is essential to enhance and maintain the high professional and occupational, ethical, and technical standards in the practice of the profession”. Thus, Hon. Rufus B. Rodriguez and Hon. Maximo B. Enriquez of the House of the Representatives, introduced House Bill No. 4106 in Strengthening the Continuing Education Program. F. Electrical Safety Public Awareness The Institute, represented by the National President, Engr. Armando R. Diaz and IIEE Electrical Safety Committee Chairman, Engr. William J. Juan, were invited by DZMM and DZRB last February 13, 2011 to talk on Electrical Safety. The discussion aimed to increase public knowledge on Electrical Safety and the dangerous consequences of electrical malpractice. This is one of the advocacies of the Institute against the increasing number of fire incidents due to electrical reasons. G. Regional Conferences The seven (7) regions of the Institute hosted their respective Regional Conferences: 1. The Region IV 12th Regional Conference hosted by the Central Laguna Chapter was held last March 17-19 at Paseo Hotel Premiere, Sta. Rosa Laguna.

2. The 13th Northern Luzon Regional Conference hosted by the La Union Chapter was held last April 14 to 16 at Oasis Country Resort and Hotel, San Fernando, La Union. 3. The 16th Northern Mindanao Regional Conference hosted by the Iligan Bay Chapter was held last June 23-25 at Grand Caprice, LimKetKai Commercial Center, Cagayan De Oro City. 4. The 12th Eastern/Central Visayas Regional Conference hosted by the Negros Oriental Chapter was held last July 21-23 at Bethel Guest House, Dumaguete City. 5. The 15th Southern Mindanao Regional Conference hosted by the Davao Chapter was held last August 25-27 at Davao Trade and Convention Center, Davao City. 6. The 12th Bicol Regional Conference hosted by the AlbayLegazpi Chapter was held last September 8-10 at Embarcadero De Legazpi, Legazpi City Albay. 7. The 13th Central Luzon Regional Conference hosted by the Bulacan Chapter was held last October 6-8 at Paradise Hotel and Resort, Malolos, Bulacan. H. 2011 National Mid-Year Convention (NMYC) and General Membership Meeting. The 2011 NMYC was successfully hosted by the IIEE Negros Occidental Chapter last May 26-28 at Garden Royale, Goldenfields Convention Center in Bacolod City.

I. NCR Conference The 2011 NCR Conference was held last July 1 at Hotel Rembrandt, Quezon City. It was participated in by almost 50 electrical practitioners coming from the different sectors of the electrical industry. J. Ladies Auxiliary Socio Civic Activity Last September 15, the IIEE Ladies Auxiliary conducted a Feeding and Electrical Mission Program for the Broadway Samahang Magkakapitbahay Association, Inc. The electrical mission program aims to provide Street Lighting for Broadway St., Barangay Kalusugan, District IV, Quezon City. K. May as Electrical Safety Month Proclamation No. 193 was signed by the Republic of the Philippines President Benigno Simeon Aquino III, declaring the month of May of Every Year as the Electrical Safety Month. The proclamation aims to increase the awareness of the general public on electrical safety and to further educate the people on the importance of the safe usage of electrical appliances, equipment and gadgets. L. Tuguegaro Fact Finding Investigation The National President, together with Engr. Juan, Engr. Francis R. Calanio, Region I Governor and Engr. Dominador Valmonte, Former Region I Governor conducted a Fact Finding Investigation last January 12 on the fire incident that burned down the Sunshine Motorcycle




Parts and Sunshine Bed and Breakfast Pension House on the morning of December 19, 2010.

3. The Institute sent delegations to the LEED Assessor’s Training Course by the Philippine Green Building Initiative held last October 8.


The PRC submitted its endorsement or referral to SEC dated October 12 in compliance with its requirement and attached a Certification of NonObjection to the SEC Registration on the Amended By-Laws.

The 36th Annual National Convention and 3E XPO 2011: A Specialized Electrical, Electronics and Energy Exposition was held on November 23-26, at the Philippine International Convention Center.

A. Quality Management System (QMS)

C. Republic Act 7920

The Institute conducted its 1st of 2011 Internal Quality Audit (IQA) and Management Review Meeting (MRM) last June.

It was attended by more than 2000 delegates coming from the different local and foreign chapters of the Institute.

The IQA and MRM aim to oversee the over-all operations of the Institute and discuss recommendations for further improvements of the IIEE internal operations.

The final draft of the proposed amendments to RA 7920 was already completed by the Legislation and Legal Affairs Committee (LELAC). It was reviewed and approved by the IIEE Board of Governors during its 6th Regular Board Meeting in Cagayan De Oro.

M. 36th Annual National Convention and 3E Xpo 2011

Ecology A. Green Building In support of the Green Building advocacies:

Based on the external audit conducted by the Certification International (CI) Philippines, the IIEE maintained its QMS accreditation in accordance with the requirements of ISO 9001:2008.

1. The Institute, through the IIEE New Building Committee Chairman, Engr. Arthur N. Escalante participated in a Symposium on Green Building Ordinance 2009 and Implementing Rules and Regulations by the Quezon City Department of Building Officials last February 23.

B. Ratification of the Amended ByLaws

2. Former President Engr. Arthur A. Lopez and Engr. Jesus C. Santos, served as a Resource Speakers on the technical topic Building Energy Audit and Building Energy Efficiency Standard, respectively, during the lectures on Green Buildings for Quezon City Government Technical Personnel conducted by the United Architects of the Philippines-Green Architecture Movement last June 10.

A total of 18,950 proxy votes or 57.8% of the general membership were gathered by the IIEE National Officers, Regional Governors, and Chapter Officers.


The proposed amendments to the IIEE By-Laws were ratified during the national mid-year convention general membership meeting held in Bacolod City.

The amended by-laws was already endorsed by the Securities and Exchange Commission (SEC) to the Professional Regulation Commission (PRC) for its comments and suggestions.


4th QUARTER 2011

The proposed amendments were already forwarded to the Board of Electrical Engineering (BEE) for further review and approval. D. Guidelines on Handling Complaints The Policy and Guidelines on Handling Complaints was reviewed and revised by the Professional Practice Committee (PPC) with a purpose of providing standardized guidelines in filing, processing and hearing of complaints, making recommendations and rendering of final actions. E. IIEE Code of Ethics With an aim of aligning the code provisions with the current demands and requirements in the electrical industry, the PPC reviewed and made necessary revisions to the IIEE Code of Ethics. The proposed amendments were already forwarded to the IIEE Board of Governors for its further review.


Support A. Launching of Electrical Safety Enforcement and Awareness Campaign The Institute, together with the International Copper Association Southeast Asia (ICASEA) launched the Electrical Safety Enforcement and Awareness (ESEA) Campaign Project last May. In relation with the ESEA Project, several chapters of the Institute hosted different activities such as motorcade, electrical safety seminars and free electrical wiring inspections of different schools and establishment nationwide. B. 45th Fire Prevention Month The IIEE Electrical Safety Committee participated in the observance of the

45th Fire Prevention Month with the theme “Kahandaan sa Sunog, Tungo sa Kaunlaran”held last March 1 at UP Diliman, Campus, Quezon City. C. ICASEA Manuals The IIEE and International Copper Association Southeast Asia (ICASEA) signed a Memorandum of Agreement (MOA) for the creation of three Manuals on Motors and Drives, Transformers and Wires and Cables. In line with this, the Institute provided Resource Speakers to discuss the three manuals during the regional conferences and conventions of 2011. The IIEE and ICASEA further provided free technical CDs containing the electronic copies of the three manuals, in every regional conferences and conventions.

D. NCR Golf Tournament The IIEE NCR Affairs Bureau successfully conducted the 1st IIEE NCR Golf Tournament last June 30 at the AFP Golf Course. E. 2011 Committee Strategic Planning The Institute conducted its 2011 Strategic Planning Worshop last January 8 at the IIEE National Office. It was attended by the different Standing and Ad Hoc Committee Chairmen and Members. The 2011 Planning Committee chaired by Engr. Escalante reviewed the output of the different committees and further consolidated the estimated expenses of the programs through the Finance Committee.





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IIEE Bulacan Chapter BODs Holds 2012 Planning Session By : Engr. Edgardo C. Calantuan A week after attending the 36th IIEE ANC at PICC, the incumbent and incoming IIEE Bulacan Chapter Board of Directors (BODs) held its 2012 Planning Session last 03 December 2011 at Luntiang Paraiso Resort and Hotel located along Tabang National Road, Barangay Tabang, Guiguinto, Bulacan. At about 8:30AM of Saturday, 03 December 2011, its 2012 Planning Session formally started with the Invocation led by its 2012 Secretary, Engr. Joelito C. Miranda, followed by the Opening Remarks of its 2011 President, Engr. Federico V. Cudia. Engr. Luzares then presented to the attendees his 2012 Plans for IIEE Central Luzon Region in general and IIEE Bulacan Chapter in particular. He also took the opportunity to convey to the attendees that 03 December 2011 happened to be the 35th chapter accreditation anniversary of IIEE Bulacan Chapter which made its 2012 Planning Session even more meaningful and significant. Afterwards, its 2012 President, Engr. Jigger M. Rotoni, laid out the chapter’s 2012 Objectives and urged the attendees to wholeheartedly support his administration on those objectives for the benefit of its members. Assistance to Student Activities is likely to focus on the projects of Bulacan State University EE Student Community (BulSU IIEE-CSC) and Central Luzon Regional IIEE-CSC. Technical/Educational Seminars are likely to focus on planned RME Forum, REE Forum and a field trip to Angat Hydro Electric Power Plant in Angat, Bulacan.


The IIEE Bulacan Chapter Officers after the 2012 Planning Session

Before lunch break, Engr. Luzares, in his capacity as the 2012 Governor of IIEE Central Luzon Region, administered the charging and oath taking to the 2012 BODs of IIEE Bulacan Chapters. Civic Activities are likely to focus on participations with concerned entities during the observance of the Fire Prevention Month (March 2012); Electrical Safety Month (May 2012); and Araw ng Bulakan (August 2012).

In his closing remarks, Engr. Rotoni reiterated to the attendees that his administration will be based on the chapter’s objectives based on the provisions of the Manual of Operations for IIEE Chapters and individual director’s objectives consolidated into a collective BOD objective. The 2012 Planning Session of IIEE Bulacan Chapter officially concluded at about 5:00PM of 03 December 2011.

Fund raising projects are likely to focus on relevant trainings such as the Basic Occupational Safety and Health (B.O.S.H.) trainings programs, etc. which are in line with D.O.L.E. regulatory requirements. The chapter’s General Membership Meeting (GMM) is planned to be held in September 2012; however, preparatory activities are likely to commence starting January 2012.


4th QUARTER 2011

The 2012 Planning Session focuses on the plans and programs of the Bulacan Chapter for the year


IIEE-CRCSA Celebrated its 13th Annual Convention IIEE-CRCSA held its 13th Annual Convention last November 18, 2011 at Marriott Hotel, Riyadh, Saudi Arabia. The event was held in a grand celebratory mood amongst the entire membership. It was a testimonial event to cap a very successful year culminating in the CRCSA's winning the 2011 Most Outstanding Chapter Overseas Category. The convention was attended by 123 participants including officers, members, and guests. Along with the sponsors – Schneider Electric and Legrand, advertisers, faithful members and never-tiring officers' support, the convention was a grand success. The program proper commenced with the invocation and the singing of the National Anthem and IIEE Hymn. VIPs, guests, sponsors and advertisers were then recognized and introduced. Engr. Celso T. Plaza, 2011 IIEE-CRCSA Vice –President for External Affairs and Acting President delivered his Welcome Address and the President's Report for the year 2011. It was followed by the presentation of Treasurer’s Report on the current financial status of the organization by the Chapter Treasurer, Engr. Jajilo J. Trillo.

IIEE-CRCSA 13th Annual National Convention was attended by 123 participants composed of members, guests and officers.

His Excellency Ezzedin H. Tago, Philippine Ambassador to the Kingdom Saudi Arabia graced the occasion and gave his inspirational message as the Convention's Guest Speaker. During of his speech, he thanked all the Electrical Engineering practitioners for their professionalism in their work thus giving pride to the Filipino Nation as a whole. His Excellency also campaigned on the subject of Overseas Absentee Voting (OAV) and stressed the need for Filipinos living abroad to register in their respective embassies and consulates for them to be able to exercise their right to vote come election day. The convention was highlighted with four technical / product presentations. The first Technical/Product Presentation was presented by Engr. Eyad Mansi from Legrand on the subject of Standard Overview ISO/IEC11801:2002, Basics of Signal Transmission in Copper and Fiber Optic Transmission. The second

Technical/Product Presentation on the topic of Thermal Management was expounded by Engr. Simon Deleu from Schneider Electric. Engr. Sintil Kumar from Schneider Electric was the third technical speaker on Power Factor Correction & Harmonics Mitigation. The fourth Technical Presentation was conducted by Engr. Melvin M. Candelario from Saudconsult on the subject of “Value Engineering – Why a must?”. A plaque of appreciation was presented to each technical speaker for their participation and support to the Chapter. Engr. Arnel O. Aguas, Chapter Asst. Treasurer was also presented with a plaque of appreciation for being the resource technical speaker during the 2nd Founding Anniversary celebration of the United Architects of the Philippines – Riyadh KSA Chapter (UAPRiyadh) where he presented the topic on “Basic Principles of Renewable Energy”.

His Excellency Ezzedin H. Tago, Philippine Ambassador to the Kingdom of Saudi Arabia graced the occasion as the Guest Speaker




The 2012 Chapter Officers as they take their Oath of Office

Candidates for the 2012 Board of Directors were presented by Engr. Victor B. Imperial, Chairman of the Nominating Committee, and he also announced the election results to the general membership. Chapter Founding President, Engr. Eutiquio M. Guantero Jr. presided over the induction and oath-taking ceremony for the 2012 Chapter Officers. They were as follows: President - Rolando M. Nicolas VP, Internal Affairs - Celso T. Plaza VP, External Affairs - Arnel O. Aguas VP, Technical Affairs - Sahak I. Ampang Secretary - Orlando T. Villapana Jr. Treasurer - Arnel A. Morillo Auditor - Timoteo D. Antivola Jr. Governors: Asst. Secretary - Jose F. Viray Jr. Asst. Treasurer - Allan M. Camello Asst. Auditor - Aruel D. Diaz Press Relation Officer -  Ashle A. Sumampong Governor - Al Kharj Area - Wilfredo G. Duco Governor - Qassim Area - Mark Gil M. Acosta Governor - Dawadmi Area - Daniel G. Cabasa Governor - Riyadh Area - Ramon A. de Guzman Jr.


Plaques and citations were presented to various personalities according to their contribution, service, and support to the Chapter. Chapter Acting President Engr. Celso T. Plaza presented all the plaques and awards. Listed below are the citations awarded to the Chapter by the Institute and the Chapter awardees:

Ronald John A. Ibarra Reynaldo C. Kong Ronnie G. Rimando

A. 2011 IIEE Awards 1.Most Outstanding Chapter – Overseas Category 2.Most Outstanding Electrical Practitioner Eutiquio M. Guantero Jr., PEE (Field of Consultancy) Renato A. Datuin, PEE (Field of Industry) 3.New Senior Members Engr. Sahak Ampang Engr. Wilfredo Duco Engr. Pedro Torres Engr. Francisco Sigaya Jr. Engr. Enrico Venturina

Chapter VP for Technical Affairs and Activity Vice Chairman, Engr. Rolando M. Nicolas delivered the closing remarks. He thanked all the members, sponsors and advertisers and all the past Presidents who steadfastly supported the Chapter. He informed everyone that the task ahead is a very crucial and challenging one. Aside from maintaining its good status, the Chapter is gearing up for a three-peat grand slam of being the Most Outstanding Chapter for Overseas Category. He also asked the support of the whole general membership as the rotating presidency of the PPO-CRSA will be given to IIEE-CRCSA for the year 2012. Official picture-taking followed, with all Chapter members, officers and guests joining in. Thus, the 13th IIEE CRCSA Annual Convention was adjourned and was considered an overwhelming success.

B. 2011 Chapter Awardees 1.Leadership Award Engr. Celso T. Plaza 2.Most Outstanding Member Engr. Rolando M. Nicolas Engr. Aruel D. Diaz Engr. Mark Gil M. Acosta Engr. Arnel A. Morillo Engr. Jajilo T. Trillo Engr. Arnel O. Aguas 3.Most Outstanding Technical Resource Speaker Engr. Renato O. Perlas 4.Service Award – REE/RME Board Reviewer Engr. Sherwin B. Villaruz Engr. Dexter Raquel Engr. Daniel G. Cabasa 5.Loyalty Award Medel G. Barce Ramon A. De Guzman Jr.


4th QUARTER 2011

Certificates of Attendance were awarded to all convention participants. Engr. Aruel D. Diaz and Engr. Ashle A. Sumampong delivered a masterful handling of the event.

Quote, UnQuote The ultimate measure of a man is not where he stands in moments of comfort, but where he stands at times of challenge and controversy. Martin Luther King, Jr.


IIEE Bulacan Chapter Hosts 13th IIEE Central Luzon Regional Conference Amidst the turmoil caused by the onslaught of Typhoon Pedring in the lowlying cities/municipalities of Bulacan, the IIEE Bulacan Chapter successfully hosted the 13th IIEE Central Luzon Regional Conference (CLRC) on October 6-8, 2011 at DJ Paradise Resort and Hotel, MacArthur Highway, Barangay Dakila, Malolos City, Bulacan in line with the Institute’s 2011 theme “Economic Development Through Clean and Affordable Electricity”. The 13th IIEE CLRC’s kick-off activities on October 6, 2011 featured the Electrical Safety Enforcement and Awareness Campaign (ESEA) Motorcade from Balagtas, Bulacan all the way to the Bulacan Provincial Capitol in Malolos City and winding up at the DJ Paradise Resort and Hotel grounds; a token 10-Pin Bowling Tournament & Fellowship at the DJ Paradise Bowling Center; and a daylong on-site registration procedurals. Technical Product Exhibits of the 13th IIEE CLRC was formally opened on October 7, 2011 with its ribbon-cutting ceremony graciously performed by Mr. Cenon Querubin, TESDA Bulacan Provincial Director, ably assisted by Engr. Armando R. Diaz, IIEE National President and Engr. Virgilio S. Luzares, IIEE Central Luzon Regional Governor. The exhibitors were the following: Firefly Electric & Lighting Corp. KC Industrial Corporation Asiaphil Group of Companies Crown Asia Compounders Corporation Centrade Industrial Sales Co. Taian Electric Co. (TECO) RPV Electro Greenlight Power, Inc. American Wire & Cable Co., Inc.

Participants of the 10-Pin Bowling Tournament and Fellowship held at the DJ Paradise Bowling Center

The ESEA Motorcade from Balagtas Bulacan to Bulacan Provincial Capitol in Malolos City

Right after the exhibits viewing, the Opening Ceremonies of the 13th IIEE CLRC followed whereby the Entrance of Colors were performed by Bulacan State University (BulSU) Student Military Cadets while the Doxology, National Anthem and Intermission Numbers were endearingly rendered by the BulSU Saring Himig Chorale.

PRBEE Simplified Fault Analysis Using Simple Drawings – Engr. Jules S. Alcantara Open Access – Engr. Florigo C. Varona Sectionalizing Scheme : Review of Distribution Line Protection – Engr. Alex C. Cabugao

The Opening Ceremony Keynote Speech was read by Mr. Jim Valerio, Bulacan Provincial Administrator, in behalf of Bulacan Governor, Hon. Wilhelmino M. Sy-Alvarado, who could not make it to the occasion due to his needed presence in taking care of the welfare of flooded Bulacan residents in the aftermath of Typhoon Pedring.

Technical product presentations were likewise held by Panasonic and Asiaphil Group of Companies. Another series of technical seminars were held on October 8, 2011 whereby the following topics were presented by their respective resource speakers: Power Transformer Testing and Maintenance – Engr. Rey G. Paduganan

Scheduled technical seminars on October 7, 2011 immediately proceeded after the opening ceremonies whereby the following topics were presented by their respective resource speakers: Professional Competency of Electrical Practitioners – Hon. Francis V. Mapile, PEE - PRBEE Proper Grounding and Maintenance – Hon. Jaime V. Mendoza, PEE, MTM –

Participants of the 13th Central Luzon Regional Conference




The Closing Ceremony Keynote Speech was read by Atty. Christian Peter C. Bautista, Malolos City Councilor, in behalf of Malolos City Mayor, Hon. Christian D. Natividad, who could not make it to the occasion due to his needed presence in taking care of the welfare of flooded Malolos City residents in the aftermath of Typhoon Pedring.

The IIEE Board of Governors together with the host chapter during the Opening Ceremonies

Nuclear Energy : Option for Electricity Generation – Engr. Meleusipo E. Fonollera Renewable Energy Options for Electricity Generation – Engr. Arthur A. Lopez Basics of Electricity Pricing – Hon. Fortunato C. Leynes, PEE – Chairman, PRBEE Electrical Enclosure Typing (NEMA or IEC) – Engr. Ramon Z. Gatchalian, Jr. Services Bonding for Two-Six Disconnecting Means – Engr. Ernesto C. Valdez Power Cables and Wires (IIEE-ICA Technical Manual # 1) – Engr. Marvin Caseda Electric Motors and Drives (IIEE-ICA Technical Manual # 2) – Engr. Renato B. Ong Power Transformers (IIEE-ICA Technical Manual # 3) – Engr. Arthur A. Lopez

Exit of Colors were also performed by BulSU Student Military Cadets. The 13th IIEE CLRC was participated in by more than 100 electrical practitioners coming from the Central Luzon constituent provinces notably Pampanga and Tarlac Chapters; delegations from Meralco NCR & North Sector Business Centers; delegations from United Pulp and Paper Corporation (UPPC), Ajinomoto & Pascual Laboratories; and other freelance electrical practitioners.

This year's regional conference became even more compassionately meaningful because of the relief operation by the Institute to the victims of Typhoon Pedring in Calumpit, Bulacan. Through the town mayor of Calumpit, Bulacan, Hon. James P. de Jesus, the IIEE Board of Governors, together with the exhibitors of the said regional conference, participated in the distribution of relief goods to the families and residents of Brgy. Caniogan. Before the official closing ceremonies, Central Luzon Regional Governor, Engr. Virgilio S. Luzares, expressed his warmest appreciation to all the sponsors, delegates, officers, companies, Central Luzon Regional IIEE-CSC and BulSU IIEECSC officers & members who supported the event.

The Electrical Engineer Magazine



he Electrical Engineer, our quarterly magazine will feature different activities conducted by different Regions and its chapters. With this, we would like all Regional Governors to coordinate with their respective chapters the submission of reports (articles) of all Chapter activities that you would like to be featured in The Electrical Engineer magazine. We would appreciate it if you would send your articles through email at or on or before the 15th of each month.

Relief operations headed by the IIEE Officers to the affected residents of typhoon Pedring in Calumpit Bulacan



For further queries regarding the matter, you may coordinate with our Communications Staff, Ms. Jenelyn C. Pajutining at Telephone Nos. (02) 727-3552 loc. 109; (02) 448-5211.

4th QUARTER 2011


IIEE Holds Turn Over Ceremonies and Pre-planning Session Officers' Christmas Party and Turn Over Ceremonies The IIEE held its 2011 Turn Over Ceremonies on December 9 at the Meralco Lighthouse, Lopez Building, Ortigas Ave., Pasig City. It was started with a thanksgiving mass officiated by Father Glenn Gomez and attended by the IIEE Council of Former Presidents, Committee Chairmen and members, the IIEE ladies auxiliary, industry partners and the IIEE Secretariat. During his valedictory address, Engr. Armando R. Diaz, Incumbent National President, thanked all the IIEE Officers and staff members who supported the plans and programs of the Institute in 201I. After the valedictory address, Engr. Diaz officially turned-over his seat as the National President of the Institute to Engr. Jules S. Alcantara, 2012 Incoming National President, through a ceremonial turn over of the IIEE symbols of authority such as the gong & gavel and the IIEE banner.

Engr. Diaz officially turn over the IIEE symbol of authority to Engr. Alcantara

Engr. Diaz awards the plaque of appreciation to Engr. Florencio Berenguel as the 2011 Chairman of Scholarship Committee

Engr. Alcantara accepted the symbols as the sign of his commitment to serve the Institute. He also gave his acceptance speech.

It was attended by the Board of Electrical Engineering, Incumbent and Incoming Board of Governors, and the 2012 Committee Chairmen.

This year's turn over ceremonies also highlighted the acknowledgement of the efforts and dedication of IIEE Committee chairmen through the awarding of Certificate of Appreciation by Engr. Diaz.

Each of the committee chairmen were given an opportunity to discuss their plans, objectives and concerns of their respective committees.

The Pre-Planning Session The Pre-planning session for various standing and ad-hoc committees was held on December 10 at Mario's Restaurant, Tomas Morato cor Sct. Gandia, Quezon City.

The 2012 Board of Governors held its preplanning session in the afternoon. The BOG came-up with the 2012 Schedule of activities, including the regional conferences and the activities of the nominating committee. Engr. Jules S. Alcantara presided over the pre-planning session and thanked all the IIEE Officers who participated in the activity. Words of

The thanksgiving mass officiated by Father Glenn Gomez

Pre-planning session held at Mario’s Restaurant participated by the 2012 Committee Chairmen and Board of Governors


Trust in the Lord with all your heart and lean not on your own understanding, in all your ways acknowledge HIM, and He will direct your path.



IIEE Holds 36th Annual Natio 2011: Spec The four-day event gathered more than 2500 electrical practitioners coming from the different local and foreign chapters of the Institute. IIEE 18th Golf Tournament and 3rd Bowling Tournament


Institute of Integrated Electrical Engineers of the Philippines,Inc. successfully held its 36th Annual National Convention and 3E Xpo 2011: A Specialized Electrical, Electronics and Energy Exposition last November 23-26, 2011 at the Philippine International Convention Center (PICC), CCP Complex, Pasay City, with the theme, “Economic Development Through Clean and Affordable Electricity”.

To promote stronger camaraderie among its members and industry partners, the 36th ANC featured the 18th Golf Tournament and 3rd Bowling Tournament on November 22. The bowling tournament was successfully held at the SM Mall of Asia Bowling Center, participated in by eight (8) teams. Winners of the bowling tournament were: A. Team Champion – PSVARE 1st Runner-up – San Miguel Corp. 2nd Runner-up – PLDT B. Individual High Game – Engr. Roger Amper (PLDT)

The IIEE Golf Tournament held on November 22 at Ayala Greenfileds Golf

The Golf Tournament was held at the Ayala Greenfields Golf Course participated in by eighty golfers coming from the different chapters and industry partners of the IIEE. Plant Tour Forty-eight (48) delegates participated in this year's plant tour held at Bataan Nuclear Power Plant (BNNP) located in Morong Bataan. The plant tour also featured an ecotech tour of the Pawikan Conservation Center in Nagbalayong, Morong, Bataan. 3E Xpo 2011 One of the most exciting attractions of this year's convention was the 3E XPO 2011. It was formally opened on November 23, at the PICC Forum. Prior to the Opening of the 3E XPO 2011, the IIEE and the International Finance Corporation (IFC), signed a Memorandum of Understanding (MOU). The IIEE and IFC will jointly develop an EE and RE Training Center of the Philippines.

The 3rd IIEE Bowling Tournament held at the SM Mall of Asia Bowling Center

onal Convention and 3E XPO cialized Electrical, Electronics & Energy Exposition Opening of the 36th Annual National Convention The 36th Annual National Convention formally opened on November 24 at the PICC Reception Hall. Mr, John Nite and Ms. Maria Stella Gatchalian served as the Masters of Ceremonies of the event.

The Ribbon-cutting ceremonies during the Official Opening of the 2011 3E Xpo by the Engr. Diaz and the Guest Speaker, Mr. Nixon Hao

Mr. Jesse O. Ang, Resident Representative of IFC signed the MOU on behalf of the IFC, and IIEE National President, Engr. Armando R. Diaz, represented the Institute. Mr. Nixon G. Hao, Vice President and Head, Energy Management – Networks of the Manila Electrical Company graced the occasion as the Guest Speaker of the Exhibit Opening. In his message, Mr. Hao emphasized the importance of “reliable, affordable and cleaner power” in homes, business establishments and industry. The 2011 3E XPO was participated in by more than 110 companies from industry, occupying more than 200 exhibit booths. The exhibit showcased the latest products and services that the featured company offered.

A Posthumous Tribute to the Late IIEE Former President, Engr. Edward L. Mendoza was highlighted through an Audio-Visual Presentation (AVP) and the special number rendered by the NGCP Chorale.

National Electrification Administration (NEA) Chairman, Hon. Edita S. Bueno graced the occasion as the Guest of Honor and Keynote Speaker. In her speech, Hon. Bueno emphasized the availability of reliable and affordable electric power. She further challenged the IIEE to support the rural electrification program of NEA. Part of the Opening Ceremonies was the conferment of the 25 Senior Member Grade by the Selection and Awards Committee chaired by Engr. Arthur A. Lopez. The 2011 Grade of Seniors: Juan R. Agtarap, Jr., Sahak I. Ampang, Nelson S. Andres, Siverio B. De Honor, Wilfredo G. Duco, Johnson Jun P. Dy, Romulo S, Erabola, Fitzgerald D. Edquilane, Gerardo D. Frani, Aris Love G. Guiani, Ernesto B. Jacinto, Moises C, Juaban, Cesar L. Nerona, Roger N. Nullar, Guido L. Ortigas, Antonio L. Paguio, Francisco M. Pastoril, Jr., Franklin L. Peña, Daniel P. Sese, Francisco C. Sigaya, Antonio C. Tarog, Pedro C. Torres, Villamor O. Tumbaga, Enrico M. Venturina, and Berjandi N. Wong.

The IIEE 2011 Grade of Seniors together with the Selection and Awards Committee

EE Research Contest The EE Research Contest has an objective to promote and highlight the advancement in the field of Electrical Engineering for sharing new technologies, ideas and concepts among schools and universities that offers Bachelor of Science in Electrical Engineering. Winners of the 2011 EE Research Contest: Champion: Polytechnic University of the Philippines -- Manila 1st Runner-up -- Technological Institute of the Philippines -- Quezon City 2nd Runner-up -- Technological Institute of the Philippines -- Manila

Cover Story

Open Access and Retail Competition Forum The convention featured the Open Access and Retail Competition (OARC) Forum by the IIEE Advocacy Group. Several issues were discussed that revolved around the concerns on OARC such as the Regulatory Development on OARC; Generation, Wholesale Electricity Spot Market (WESM), Transmission, Distribution Utilities / Rural Electric Cooperatives, Retail Electricity Suppliers Association (RESA), Consumer Group. Engr. Raquilino Pangan served as the Moderator and Engr. Florigo C. Varona as the rapporteur of the forum. Simultaneous Technical Session This year's simultaneous technical sessions were divided into four categories: (1) Operation and Maintenance; (2) Distribution Utility; (3) Construction/ Design; and (4) Transmission and Generation. Twenty-eight technical session each presented a topic which were respectively conducted by industry experts of their own genres. Each of which aimed to augment the general members’ professional education. Electrical Practitioners' Night The much awaited electrical practitioners' night highlighted the performances of the delegates coming from Southern Luzon Region, National Capital Region and Central Luzon Region, through the IIEE version of the famous reality talent show, Pilipinas Got Talent ©, the IIEE Got Talent. Winners of the 1st ever IIEE Got Talent were: Champion – Eleanor Casao and Prince Jackson de la Paz from Southern Luzon Region 1st Runner-up – Roberto Ricohermoso from Southern Luzon Region 2nd Runner-up – Katrina May Royo,


The delegates of the 36th Annual National Convention during the Official Opening held at the Reception Hall, PICC on November 24

Clarence Rodney Cruz, Lucyndo Quemada and Katrian Mae S. Royo from Meralco National Quiz Show and National Math Wizard The National Quiz Show (NQS) and National Math Wizard (NMW) are both academic competitions organized of the Council of Student Chapter (CSC). These competitions served as a venue to uphold and provide electrical engineering students with the enthusiasm to learn and to promote a high degree of integrity through a healthy and fair competition. The winners of the 25th National Quiz Show: Champion: University of Batangas Quizzers: Rommel E. Matibag, Mark Joseph S. Manalo, Crizel L. Macatangay, Jomar M. Enriquez and Mark Paolo C. Abag. Coach: Engr. Jermhel M. Solis 1st Runner-Up: Bicol University Quizzers: Carl James C. Ceperez, Jerrick Elbert L. Virrey, Wilfredo L. Mata, Jr., Jemerson A. Aguilar, and Lincoln A. Azupardo Coach: Engr. Gary V. Hilutin 2nd Runner-Up: Sorsogon State College Quizzers: Reyman Jan . Evangelista, Ervin N. Bañares, Kevin D. Destreza, Charles Japeth A. Dichoso and Nolan E. Matuba. Coaches: Engr. Joselito Orticio and Engr. Zendy Dematera


4th QUARTER 2011

11th National Math Wizard Champion: Technological Institute of the Philippines – Manila Wizards: Rasleigh Rhon V. Pagilagan, John Edward A. Normor, Christian L. Pao, and Rodrigo S. Rellama, Jr. Coaches: Engr. Jerry D. Catibayan and Engr. Erwin C. Malayo 1st Runner-up: Don Mariano Marcos Memorial State University Wizards: Lou Benedic C. Valle, Janry Quinones, Janine Collado and Riniel R, Rimando Coaches: Engr. Lorenzo Bacani and Engr. Dennis Andrada 2nd Runner-up: Mindanao State University – Iligan Institute of Technology Wizards: Jeffrey T. Lozada, April Faith L.

The Winners of the IIEE Got Talent-- Eleanor Casao and Prince Jackson de la Paz

Cover Story

Among the topics discussed in the forum were: Electrical Wiring Materials and Methods, Proposed Wiring Standards for 2 to 6 Disconnecting Means, and TESDA Primer. ACMEEE Forum

The participants of the National Quiz Show and National Math Wizard held on November 23 at Summit Hall C & D

Manabat, Daxter William L. Gulben, Alfie P. Mendoza and Melvin P. Lacia Coaches: Engr. Carl John O. Salaan and Engr. Mark Joseph Victoria Academe Forum, EE Educator's Forum, ACMEEE Forum and Electricians' Forum The Academe Forum serves as a venue wherein electrical practitioners in both academe and industry sector discuss issues that are relevant to electrical engineering education. The EE Educators' Forum, on the other hand, serves as a venue to promote and highlight the advancement in the Electrical Engineering discipline as well as to create a forum for sharing new developments in EE Education among universities that offers Bachelor of Science in Electrical Engineering nationwide. Electricians' Forum The Electricians' Forum and Seminar, organized by the IIEE Electricians' AffairsCommittee, aims to enhance the technical skills and competency of member master electricians through technical seminars. Furthermore, the forum aims to unify the electrician members, giving them the opportunity to be more productive and to encourage their active participation in the activities of the Institute.

Once again the Association of City/ Municipal Electrical Engineers & Electricians of the Phils., Inc. (ACMEEE) is a beneficiary of the constant professional support of the Institute of Integrated Electrical Engineers (IIEE) as it slated a forum for the electrical enforcing authority delegates to the 36th Annual National Convention and 3EXPO 2011 held at the PICC on November 26, 2011. The well-attended forum tackled wideranging issues and concerns of the electrical enforcers in carrying out their function of ensuring Code-compliant electrical installations, such as but not limited to, skills enhancement programs, Code competency retraining and education, Wiring standards and inspection procedures. The Electrical Engineering Law (RA 7920) was also revisited as questions regarding non-licensed electrical practitioners issuing Wiring permits and Certificates of Electrical Inspection was brought to the floor. Forum participants requested ACMEEE to spearhead the move to initiate revisions of certain provisions of the law and to strongly advocate for the inclusion of Electrical Enforcement as a recognized professional practice in the field. Highlighting the program is a power point presentation on ‘FAULTY WIRING: A myth or fact’, a very relevant and informative topic for the electrical safety practitioners. With the support of the entire concern industry partner, the forum was staged successfully.

Chapter President’s Meeting, General Membership Meeting and IIEE Joint CFP and Board of Governor’s Meeting The 36th ANC also hosted several meetings. The General Membership Meeting was held in the afternoon of November 24 at the Reception Hall, PICC. The meeting discussed the issues and concerns by the general membership such as the Continuing Professional Education, the RA 7920, IIEE Election and the IIEE Foundation. The Chapter Presidents’ meeting was held on November 25 at Summit Hall E. The meeting discussed the different concerns on the chapters of the Institute. The Joint CFP and Board of Governor’s meeting was held on November 25. The discussion focused on the Institute’s voluntarily involvement in Disaster Response. Closing Ceremonies The closing ceremonies marked another milestone in the history of IIEE. It became more meaningful with the presence of the Vice President of the Republic of the Philippines, Hon. Jejomar C. Binay, who served as the Guest of Honor and Keynote Speaker. The Selection and Awards Committee further announced the 2011 Awardee for Most Outstanding Chapters in different categories and the Most Outstanding Outstanding Electrical Practitioners in Various Fields. The Most Outstanding Chapter in the Big Category – the Southern Cavite Chapter of Southern Luzon Region, for the Small Category --- the Isabel-Leyte Chapter of the Eastern-Central Visayas Region, and for Overseas Category --- the Central Luzon Chapter – Saudi Arabia.



Cover Story The members of the 2012 Board of Governors are as follows:

The IIEE 2011 Board of Governors together with the Guest of Honor and Keynote Speaker Vice President Jejomar C. Binay during the photo opportunity

The 2011 Most Outstanding Electrical Engineers in Various Fields: Consultancy – Engr. Eutequio M. Guantero, Jr.; Industry – Engr. Renato A. Datuin; Corporate Management – Engr. John Eduard G.Bautista; Education – Engr. Ma. Sheila C. Cabaraban and Government – Engr. Ashary P. Maongco. The most awaited announcement and induction of 2012 Incoming Board of Governors was done by the IIEE Commission on Election Chairman, Engr. German A. Umali.

National President: Jules S. Alcantara Vice President for Internal Affairs: Gregorio R. Cayetano Vice President for External Affairs: Alex C. Cabugao Vice President for Technical Affairs: Ma. Sheila C. Cabaraban National Secretary: Larry C. Cruz National Treasurer: Florigo C. Varona National Auditor: Angel V. De Vera, Jr. Northern Luzon Regional Governor: Efren Nelson F. Plete Central Luzon Regional Governor: Virgilio S. Luzares Southern Luzon Regional Governor: Jozane F. Jalbuena Bicol Regional Governor: Edwin G. Parañal Western Visayas Regional Governor: Cirilo C. Calibjo Eastern/Central Visayas Regional Governor: Federico C. Mercado Northern Mindanao Regional Governor: Remegio B. Gonzales Southern Mindanao Regional Governor: Benjamin A. Arboso

In his closing remarks, Engr. Gregorio R. Cayetano extended his sincerest appreciation to all the exhibitors, guests, sponsors and delegates who participated in the event. Furthermore, he acknowledged all the members and officers for their efforts and support towards the success of the event.

Engr. Jules S. Alcantara, VP-Internal Affairs and Engr. Armando R. Diaz, National President, award the Plaque of Appreciation to Vice President Hon. Jejomar Binay

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4th QUARTER 2011

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Message of Engr. Armando R. Diaz

36th Annual National Convention

I would like to call this Annual Convention a “homecoming”. A homecoming, which makes family members come together. This occasion brings nostalgia, once more waking up old memories of yesteryears that bounded us together to become not just friends or colleagues but a family. A family that shares pleasures, dreams, experiences and knowledge for a fruitful advocacy aimed for the advancement of technology and the development of eco-consciousness in a progressive nation seeking further advancement in the industrial world..Ladies and gentlemen of Institute of Integrated Electrical Engineers … my family…Magandang umaga po sa inyong lahat. Welcome to IIEE’s 36th Annual National Convention. The Institute of Integrated Electrical Engineers conferences like this one, is one of the most enjoyable and rewarding privileges of IIEE membership. Occasions like this in IIEE, opens doors to countless opportunities. Here, you meet old friends and make new ones. Thus, you expand your network of friends and discover new sources of information that would update you to new knowledge necessary in modern industry. Occasions like this also makes you feel proud of your profession, inspiring you to learn some more, encourage you to share your skills, and motivates you to participate in nation building, which our country direly need in these fast changing times of industrial, and economic development. To the romantic, especially those active members whose days with IIEE had been illustrious, similar conferences bring back old memories…flipping calendar pages backwards.. Pilit na ibinabalik ang ala-ala ng lumipas, sinasariwa ang ligaya sa kabila ng hirap at dusa upang maging matibay at matatag ang institusyong ito, na ngayo’y isa nang simbolo ng ating piniling propesyon, mandi’y kanlungan ito ng karunungan,karanasan,at matalik na pagkakaibigan. This conference particularly, is one of the golden pages of my book life. It is the most important chapter that describe my love affair with my profession. Thirteen years ago in 1998 , I was awarded the honor of being the most outstanding professional in the field of industry, Five years ago in 2006 , I was inducted as one of the Governor at Large and as well as conferred an IIEE Fellow. All these happened here at PICC. Now, 2011, the year of metal rabbit ,which gave us a lot of things to look forward to, I am delivering my final message as your National President here at PICC… the very place where it all started . Needless to say , this one is indeed memorable to me. Today, I am proud of IIEE’s numerous achievements.. I wish that everyone, like us in IIEE Board are equally or better inspired in what we are doing today and what we have done during the year. If we as a citizen have an obligation to fulfill for our country, we as professionals have obligations to our profession, as members of IIEE, we are obliged to serve society. My friends, I wish to see the day , that someone from these attendees be a National President of our prestigious IIEE. To have a hand in running the institute is an admirable honor, which is more than just a star on one’s shoulder. It is a pride and great privilege more than just any other. National Presidents before me have laid-out their agenda to make IIEE a better IIEE. I am proud of their achievements, which we enjoy today. My vision is to make IIEE a gainfully distinct pool of citizen-friendly and environment conscious electrical engineers, integrated to the development of a nation. My vision is focused on new avenues where IIEE could actively venture. Nation building through modern technology and industry will be our quest. We drew our 4-Circuit Program to be our working guide .We called it Circuit Program to jive with words common in the practice of our profession. The 4-circuit program aims to give more muscle to the institute; advocate membership strength and professional competence; a new functional policies and public relations programs; and emphasize new methods in reducing the industries carbon print in the environment. We began our public relations program with an Electrical Safety Enforcement and Awareness or ESEA. Last February 20, 2011, we signed a memorandum of agreement with ICASEA for a three-year electrical safety program which was designed primarily “ to enhance the enforcement of Philippine Electrical Code, build capacity for the improvement of local electrical inspector’s skills and increase public awareness toward electrical safety. To give prominence to the campaign we requested AGHAM as sponsoring partner to make representation to the Phil Congress thru Cong. Angelo Palmones to declare the month of May this year and thereafter as ELECTRICAL SAFETY MONTH. Ladies and Gentlemen with this Executive Proclamation..193...This will put us all in the forefront of a scheme to provide electrical safety in the household, streets, offices, and factories in every barangays, towns, and cities of the country… There is no thrill quite like doing something you did not know you could. Nakita natin ang katotohanan sa salawikaing “ hindi tayo makakatuklas ng bagong dagat kung wala tayong lakas ng loob na mawala sa ating pananaw ang pampang.” Once more we have proven that in life, nothing is impossible…More could be done, if we shall stay together and diligently with passion, for our profession, for ourselves, for our family, for the society, work….for the country, Let us do all these together. Thank you and Merry Christmas to all!


Bits *** The Northern Cavite Chapter conducted its General Membership Meeting, Election and Induction of 2012 Set of Officers and members, and 1st coordination meeting in preparation for the 2012 Regional Conference held on October 21 at Calle Real Rest., Sta. Cruz, Tanza Cavite. ***

Kick-Off meeting with the IIEE Members in Singapore and the planning session for the chapter held last October 27 at Sam Kitchen Lot One Mall, Choa Chu Kang, Singapore.

*** The Mactan Chapter held its apecial meeting on membership update and preparaton for its general membership meeting on October 21 at Andok’s Restaurant, Pusok Road, Lapu-Lapu City.

Various chapters of Bicol Region held its election of officers: Sorsogon Chapter, Albay-Legazpi Chapter and Iriga Rinconada Chapter *** The Masbate Chapter held its Chapter Officers’ Meeting last October 1 at DMCI Power Station. ***

The Western Batangas Chapter held its General Membership Meeting, RA 7920 Forum and election & induction of 2012 Set of Officers and new members last October 22 at Malahuratan Country Club, Lian Batangas.

The meeting was attended by 11 members. *** The following chapters of Central/Eastern Visayas Region held its Regular Board meeting: (1) Isabel Leyte on Octtober 4; (2) Mactan Chapter on October 4; and (3) Leyte Samar Chapter on October 21.


*** The Batangas Chapter held its Regular Board Meeting at Pizza Hut, SM City Batangas last October 26. *** All chapters under the Southern Luzon Region conducted its election of 2012 Chapter Officers. ***

The IIEE Isabel Leyte chapter conducted three sessions for the 3rd batch of skills training program for out of school youth at Visayas Southern University Iloilo Chapter (VSU-IC). The 1st session was held last October 7, which was followed on October 21 and October 28, for the 2nd and 3rd session, respectively.

*** The Leyte Samar Chapter conducted its planning meeting for 2012 Calendar of activities and preparation for January 2012, technical seminar and induction of officers & board of directors on October 22 at Eastern Visayas State UniversityRoom 204. *** The Central Laguna Chapter conducted its General Membership Meeting and election of 2012 Set of Officers on November 17. *** The Northern Laguna Chapter conducted its regular board meeting last October 17.


The IIEE Sorsogon Chapter conducted its Electrical Safety Mission -- Electrical Inspection and Repair/ Rewiring of electrical installation in school buildings in Sorsogon.


4th QUARTER 2011

The IIEE Sorsogon Chapter conducted a technical seminar on Electrical Safety last October 22. It was participated by 24 members, 128 non-members and 12 students.

IIEE Leads Disaster-Management Advocacy Engr. Glynn Andy O. Gayman The Institute of Integrated Electrical Engineers (IIEE), Inc. is not only an institution serving its immediate constituents of professionals but deserves a whole lot of credit for intending to go the extra mile in serving the general community through its own initiative of advocating a “Disaster Management” campaign on top of other priorities in pursuit of public safety and security. Over the past several years, responses to major disasters have become apparent from local relief organizations to the international community in aid of the government’s capability to alleviate the suffering of victims of calamity. However, due to constraints on disaster risk reduction procedures, the present system manages to get to the bottom of these incidents barely repairing the damage. Be that as it may, mere food and material provisions only temporarily eliminates the inconvenience and nothing more. The rapid growth of population and increased settlement in hazardous locations just escalates the frequency and severity of natural disasters. Studies made by the University of Delaware’s Disaster Research Center manifests that disasters are the results of human failure to introduce appropriate disaster management measures for the reason that human actions before the strike of the hazard can prevent it developing into a disaster. (“At Risk-Natural hazards, people’s vulnerability and disasters” by B. Wisner, et. al.).

from two of the country’s powerful forces often tapped during disaster control call-ups; the Philippine Navy Reserve Forces (PNRV) and the Armed Forces of the Philippines (AFP). Representing the authorities were Lieutenant Commander Ferdinand Juan of the Philippine Navy Reserve Force who is also the Chief-of-staff of the Naval Affiliated Reserve Force, and Lieutenant Colonel Dennis Bumanlag of the AFP, both belonging to the Scout Ranger Regiment. Lt. Commander Juan entitled his presentation “Power to save more lives” which he tailored specifically to suit the Institute’s reflection. There was a clear manifestation that the Institute could deliver its expertise having an absolute reserve of 36,000 active members of professionals, 77 local chapters and 8 foreign chapters possessing the engineering know-how and capability to design a habitat that is less vulnerable to risks. This assemblage provided just the right amount of stimulus to drive more responsible citizens towards risk reduction strategies and pre-planning activities where preparedness would be the ultimate objective. This call to action can be described as a pooling of all resources available for a good cause.


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Just recently, the organization channeled its voluntary involvement in mitigating disaster-inflicted calamities costing lives and properties which has become a usual sight globally. The very recent in the country being the flooding caused by tropical typhoon “Sendong” leaving 1,010 casualties with hundreds still missing in Mindanao (Inquirer Headline, 19Dec2011) by Institutionalizing a “Disaster Response Committee” as ardent move.

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In a joint meeting between the Council of Former Presidents (CFP) and IIEE Board of Governors (IIEE-BOG) last November 25, 2011 at the Institute Headquarters, it invited representatives

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Technical Feature

Motor Performance Data rESEARCH BY The Electric Power Research Institute, Inc. (EPRI)

The importance of a motor does not totally depend on it’s rating (such as horsepower, voltage) but on it's application. There may be small motors in terms of horsepower rating but because of application, it may limit the operation of a system or plant. 6.1 Motor Performance History Not every motor in a plant or other facility will be monitored or have data collected for tracking or trending. Once the importance of a motor has been established based on plant or system design, then a program for condition monitoring should be established for that motor. When faced with a motor problem, it would be valuable to have operational history to review. However, many motors are either not instrumented or not deemed important enough to have this data collected. Many times when called in to evaluate a motor’s condition, the person performing the evaluation is making a fairly strong assumption regarding the past handling and performance of a motor if there is little or no condition monitoring data available. Also if the motor was not quarantined until proper investigation, valuable data could be lost. Surrounding the motor is the system that consists of power supply, driven equipment through a mounting and coupling set-up, and the environment

affect a motor’s condition. Failure to consider external influences may lead to an incorrect diagnosis of a motor failure. Although a complete system analysis is not the focus of this report, it is important to recognize that the motor is only one component of a system. Many factors will affect the system that includes the motor and then contribute to motor failure. The converse of the previous sentence is true also. Figure 6-1 illustrates the symbiotic relationship between a motor and the system that it operates in. Table 6-1 list the typical stresses that will affect a motor and the most likely component that will be affected:

6.2 Capturing Data Electric motors are fairly rugged pieces of equipment and should provide years of trouble free service. There is a minimum amount of data that can be collected for motors that are deemed important to system or plant operations. After installation, motors are typically checked out to ensure proper operation. Items such as proper supply voltage, running current, motor speed, bearing and winding temperature (if possible) were recorded in some form at initial installation. If this basic information was not collected, it would be prudent to collect that information for important motors.

Table 6-1 Stresses and affected Motor Components Types of Stress

Stator Winding

Rotor Assembly








Electrical/ Dielectric



































Technical Feature Without baseline data, a condition that has been reported as a problem may have existed since the installation of a particular motor. If the motor has been operating for many years, it appears that the conditions may be acceptable for that motor in that particular application. If it is not broken, why fix it? The responsible motor person should have the tools available to capture data for important motors in order to make determinations on motor condition and to evaluate if the data represents a condition that will be detrimental to the continued operation of a motor. One of the most important tools available is external inspection. The general condition of a motor as well as any abnormal condition such as lubricant leakage, plugged air passages, abnormal sounds and smells can be noted. Motors that are instrumented make the task of data collection and condition monitoring somewhat easier and more consistent.

Trouble Shooting Summary The analysis of motor problems must include the system in which a motor is located. The three major elements include: • The Power Supply: Distribution System and Motor Controls • The Motor: Stator, Rotor, Bearings and Accessories • The Load: Driven Equipment and The Process Upon inspection, the motor may be found damaged but the root cause of failure may be either the power supply or the load. Hence, these three elements must be treated as a single system to accurately determine a root cause. Failure to do so can result in affecting a motor repair and only have it fail again because the source of the problem has not been removed or corrected. Throughout an investigation, one must continue to ask the question: “Is this damage the result ofexternal or internal forces acting upon the motor?”

Normally, a good starting point is to assure that the correct voltage is being delivered to the motor terminals. This can normally be done at the motor control center without disconnecting, the motor leads in the terminal box. Next a review of the driven equipment and the process can be helpful. There are occasions when it may be necessary to disengage the motor form the load to assure that the drive train is free to rotate. Most large motors have a number of protective devices that need to be considered when trying to determine why the motor alarmed or tripped off the line. These devices may include some of he following: • Over current devices • Current differential protection • Winding RTD’s or equivalent • Bearing RTD’s or equivalent • Surge Protection • Vibration Sensors • Pressure differential switch on filters • Zero speed protection

The Electric Power Research Institute, Inc. (EPRI) conducts research and development relating to the generation, delivery and use of electricity for the benefit of the public. An independent, non-profit organization, EPRI brings together its scientists and engineers as well as experts from academia and industry to help address challenges in electricity, including reliability, efficiency, health, safety and the environment The opinions expressed in this article are solely of the author. This article is for general information only and is not a substitute for professional advice where the facts and circumstances warrant. The views and opinions expressed above are those of the author and do not necessarily represent the views of the Institute.



4th QUARTER 2011

Technical Feature Modelling and Simulation of Active Power Filters for Harmonic Compensation, Voltage Sags and Swells Mitigation and Power Factor Correction Michael C. Pacis, Jesus M. Martinez Jr., and Jaypee V. Tecson Abstract— The two major problems in the electrical industry today are sagging and swelling of line voltage and harmonic currents. Voltage sagging and swelling may result to equipment malfunction and shut down. Harmonics also affect the electrical equipment to fail and deteriorate the waveform of the current. To mitigate the voltage sags and swells, uninterrupted power supply was used. But uninterrupted power supply is an example of non-linear load which creates harmonics in the power system. Active power filters were used to eliminate the harmonics in the system. This study aims to create three models of active power filters that compensate the harmonics, mitigate the voltage sags and swells, and also correct the power factor. The models were simulated to know which of the three active power filter models gives the best performance. The simulation tools that were used in this study were MATLAB/Simulink and TINA PRO. Based on the results, the active power filter models compensate the harmonics, mitigate the voltage sags and swells, and correct the power factor of the system. Evaluating the models, the active power filter Model-A gave the best performance by reducing the total harmonic distortion of the system. index Terms— active power filter, harmonics, voltage sags and swells, power factor correction I.INTRODUCTION As time passes by, the world of technology evolves to a more advance and becomes widely developed. Different devices were formed such as high-end personal computers, laser printers and other electronic equipment. These devices are very sensitive to voltage sags and swells. Bingham defined voltage sags in his study as “the decrease in voltage lower than a user defined low limit” while voltage swells was defined as “voltage that surpass the user defined high limit” [1]. The more advanced and sophisticated the equipment is, the more it is sensitive to sagging and swelling of voltages. Voltage sags and swells are the most occurring power system problems today that can cause electrical equipment to fail or shut down [3]. To mitigate the voltage sags and swells, uninterrupted power supply (UPS) were used. Uninterrupted power supply is an example of non-linear loads. Other examples of non-linear loads are laptop, stereo, fax machines, television set and telephone system [5],[6]. Non-linear loads create harmonic current and increase the deterioration of the power systems voltage and current waveforms. These loads causes the sine wave of the current o deform [2]. Harmonics in the power system can be measured through the measurement of total harmonic distortion (THD) [4]. Due to the current wide use of non-linear


loads, harmonics became a major issue in the electrical industry. Active power filters were used to compensate the harmonics in the power system. This research paper focused on modelling and simulating active power filters that can compensate both harmonics and voltage sags & swells which both cause severe problems in the electrical power system. A study was conducted by M. Tarafdar Haque [7] regarding simulation of active power filter as an efficient and economical way of eliminating harmonics in the power system. The controls of the active filter were based on the instantaneous active and reactive power theory. MATLAB was used as a simulation tool for the active power filter. The study turned out that the active filter produced better results for correction of power factor and elimination of harmonics compared to the usual method which is passive filter for conditioning current harmonics and capacitors for correcting the power factor. This study offers to solve other major electrical power system problem. Not only that the active power filter models can compensate harmonic and correct power factor but rather it can also mitigate voltage sags and swells. This study will also widen up the features of an active power filter and will serve as a new solution for the power system problems. The researcher created three different models of active power filter. At the end of this study, the researcher will choose which of the three active power


4th QUARTER 2011

filter models gave the best performance. From the models generated in this study, interested researchers could innovate and enhance it by creating a complete equivalent circuit or a prototype of the active power filter models. The purpose of this study is to create three different models of active power filters and evaluate their performance on different harmonic conditions. Simulating tools such as MATLAB/Simulink and TINA PRO can be used to evaluate the performance of the active power filter models. After simulating each active filter model one by one, each model must compensate the harmonics, correct the power factor and mitigate the voltage sags and swells. At the end of this study, the researcher will evaluate and compare the results of the simulation of the models and choose the best active power filter model among the three models. Another purpose of this research paper is to construct an equivalent circuit for the voltage sags and swells submodel. Furthermore, this study will help the electrical power system from the generation side up to the distribution side because this will serve as a solution for harmonics, voltage sags and swells, and power factor correction in the power system. There will be reduction of voltage drop in long transmission lines. There will also be reduction of losses, therefore, wasted energy will be minimized [6]. There will be extra

Technical Feature apparent power available for additional loads that may be inserted in the power system. Commercial and industrial customers will save more money because their electricity bills will be reduced. There will be continuous production and service because electrical disturbance will be mitigated. All the end users will benefit because the equipment will be protected at the same time its life will be extended. The simulation tools to be used in this study are MATLAB/Simulink and TINA PRO. This study focuses mainly on the creating three different active power filter models and evaluating each model’s performance in seven different harmonic cases. The harmonic currents to be compensated by the Simulink filter model will range from second harmonic current to seventh harmonic current. For the Simulink model for voltage sags and swells, there will be two cases for voltage sags mitigation and two cases for voltage swells mitigation. For the TINA pro simulation, there will be ten cases for power factor correction. Since the usual load in the industry is an inductive load, the simulation for power factor correction in tina pro will cover lagging power factor. The simulation for Simulink power factor correction model will cover both lagging and leading power factor. However, this study is only limited to single phase circuits and single phase active power filter models. II. METHODOLOGY The methodology of the study was based on Figure 1. Three active power filter models were simulated to eliminate the problems. Each active power filter model was composed of submodels for voltage sags and swells mitigation, harmonic compensation and power factor correction. The researcher decided to simulate separately the submodel for voltage sags and swells since all three active power filters have the same voltage sags and swells mitigation submodel. The researcher used two different softwares to simulate hand in hand the models. MATLAB/Simulink was used first to simulate the voltage sags and swells submodel and harmonic compensating submodel combined with power factor correction submodel. TINA

PRO was used to simulate the circuit for the power factor correction. A. MATLAB Simulink model for voltage sags and swells mitigation The first submodel generated was the voltage sags and swells mitigation. The block diagram of the voltage sags and swells mitigation submodel was composed of the rectifier, switch mode DC to DC regulator and inverter [4]. Figure 2 shows the block diagram of voltage sags and swells mitigation submodel while Figure 2 shows the Simulink model for the voltage sags and swells mitigation. The model of the voltage sags and swells shown in Figure 3 was the equivalent of the block diagram in Figure 2. The block diagram was used to serve as a guide to build the voltage sags and swells mitigation submodel. Start

Generate voltage sags and swells mitigation submodel

Generate voltage sags and swells mitigation submodel

Get compensator current formula from PQ theory

Input/Output Scope


Simulate the submodel

Generate Harmonic compensation submodel


LPF (AC filter)

Generate power factor correction submodel



5 Ref voltage

+ +


nums dens

PID Controller

LPF (DC filter)

Fig. 1. Matlab/Simulink Methodology Outline

Switch Model DC to DC regulator

+ +


Combine the submodels and simulate


1.443c024 /dens


5/250.39 Feedback Network


5.18c008s4/ den(s)


Fig. 2. Block diagram of voltage sags and swells mitigation submodel


product sign

Sine wave



Square Wave Generator

Fig. 3. Simulink model for the voltage sags and swells mitigation Block diagram of voltage sags and swells mitigation submodel



V (t)V (t)I (t)-V (t)V (t)I (t)

i i r i r i Icomp= (2)


[q (t)] = [-V (t) V (t)] [I (t) ] p10(t)




Vi(t) r

Ir(t) i


Table 6 THD percentage reduction of the three models

Filter % THD Case Old THD New THD Model Reduction A 36.00 0.41 98.85 1








88.30 Fig. 11 Load current with active power filter Model-C case 1

Fig .6 Load current without active power filter case 1 Table 1 Input and output voltages for case 1 and 3 Case Input voltage 1 291 3 331

Output voltage 331.047 311.075

Fig. 7 Load current with active power filter Model-A case 1

Table 2 Case 1 results without an active power filter Source Harmonics Load amplitude amplitude 2nd 10.80 10.80 3rd 7.60 7.60 4th 4.80 4.80 5th 2.50 2.50 6th 1.90 1.90 7th 0.30 0.30 THD = 36.00 Table 3 Case 1 results with active power filter Model-A

Fig. 12 Voltage and current with active power filter Model-C case 1 Table 7 Power factor correction simulation settings Case Power factor Fig. 8 Voltage and current with active power filter Model-A case 1

Load Filter Source Harmonics amplitude amplitude amplitude 10.80 10.64 0.16 2nd 3rd 7.60 7.60 0.00 4th 4.80 4.80 0.00 5th 2.50 2.50 0.00 6th 1.90 1.90 0.00 7th 0.30 0.26 0.04 THD =0.41 Table 4 Case 1 results with active power filter Model-B Load Filter Source Harmonics amplitude amplitude amplitude 10.80 8.09 2.71 2nd 3rd 7.60 7.60 0.00 4th 4.80 4.69 0.11 5th 2.50 2.00 0.50 6th 1.90 1.08 0.82 7th 0.30 0.24 0.06 THD =7.19 Table 5 Case 1 results with active power filter Model-C Load Filter Source Harmonics amplitude amplitude amplitude 2nd 10.80 10.34 0.46 3rd 7.60 6.70 0.90 4th 4.80 4.80 0.00 5th 2.50 1.85 0.65 6th 1.90 0.72 1.18 7th 0.30 0.28 0.02 THD =4.21

Fig. 9 Load current with active power filter Model-B case 1

Fig. 10 Voltage and current with active power filter Model-B case 1

Load Load Load impedance resistance inductance (ohms) (ohms) (mH)

1 0.50 12∠60.00 6.00 2 0.55 12∠56.63 6.60 3 0.60 12∠53.13 7.20 4 0.65 12∠49.46 7.80 5 0.70 12∠45.57 8.40 6 0.75 12∠41.41 9.00 7 0.80 12∠36.87 9.60 8 0.85 12∠31.79 10.20 9 0.90 12∠25.84 10.80 10 0.95 12∠18.19 11.40

27.56 26.58 25.46 24.19 22.73 21.06 19.10 16.76 13.87 9.95

IV. SIMULATION RESULTS USING TINA PRO By looking at Table 7, the power factor from 0.50 was corrected to unity. The capacitance for case one was 192uF to correct the power factor of 0.5 to 1. For trial one, capacitor switches were opened to see the old power factor. For trial two, the capacitor switches were closed to give a correct capacitance that will correct the old power factor to unity. The computations matched the results of the TINA PRO simulation. TINA PRO simulation shows the implementation of the Simulink model for power factor correction.



Technical Feature

V. CONCLUSION Initially, the active power filter mitigated the voltage sags and swells of the circuit then it compensated the harmonic currents in the line current. The sagged or swelled voltage was rectified to convert AC voltage to DC by using the bridge type rectifier and capacitor. The DC output of the rectifier was controlled by the switch mode DC to DC regulator. The feedback comprising of a multiplier, a constant block that acts as a reference voltage, a PID controller and a low pass filter circuit was the error checker of the DC to DC regulator to maintain a certain DC value. For the practical application of this, voltage divider was used to regulate the voltage which was showed on the equivalent circuit of the voltage sags and swells mitigation model. The first low pass filter which was interpreted as a capacitor and acts as an AC filter eliminates the fundamental frequency and harmonics while the second low pass filter that acts as a DC filter eliminates the harmonics and the switching frequency. The output of the regulator was multiplied to a square wave generator in order to change DC back to AC. The square wave of the circuit can be an internal clock or a 555 square wave oscillator. Since the model for voltage sags and swells mitigation is very effective, the output of this circuit will always be an RMS voltage of 220V because of the DC to DC regulator. Regulating the voltage was done in DC to utilize the available DC – DC switching technique which is popular today. The active power filter compensates all harmonic currents and reduces the total harmonic distortion of the system. It also smoothens the distorted waveform of the load current into a pure sinusoid. Among the three active power filter models, active power filter Model-A gave the best performance compared to the other two models. Model-A reduced the percentage of total harmonic distortion of the systems greater than the two remaining models.

Since all the voltage and current whether distorted or not became in phase with each other in all cases, the power factor of the system were all corrected to near unity. Tina pro simulation was the implementation of the MATLAB/Simulink model for the power factor correction. The active power filter will switch on the correct capacitance to correct the power factor to unity once the active power filter detects the load voltage and load current. Therefore the active power filter models were effective in correcting the power factor of the system to near unity. ACKNOWLEDGMENT The authors would like to thank the School of Graduate Studies and School of Electrical, Electronics and Computer Engineering for providing the financial support and to our Lord for giving us strength and wisdom to finish this paper.

REFERENCES [1] Bingham, R. P. (1998). Sags and swells. page 1-20. [2] Cassel, J. (n.d.). Total Harmonic Distortion (THD): A lesson for lighting harmony. page 1-3. [3] Chapman, D. (2001). Voltage dips. Power quality application guide. Vol. 5.1, page 1-10. [4] Kester, W. (n.d.). Op amp distortion: HD, THD, THD + N, IMD, SFDR, MTPR. Analog Devices Tutorial. page 1-8. [5] Pradhan, M. K., et al. (2008). A case study of power quality improvement and energy saving in textile industry using solid state harmonic filter. Fifteenth National Power Systems Conference. page 286 . [6] Ramos, V. Jr. A. (1999). Treating harmonics in electrical distribution systems. [7] Tarafdar Haque, M. (2002). Singlephase PQ Theory for Active Filters. IEEE website.

Michael C. Pacis is a graduate from MAPUA Institute of Technology, Manila, Philippines with a degree of Bachelor of Science in Electrical Engineering (BSEE) in 2001. He also received his Master of Engineering-Electrical Engineering (M.Eng’g-EE) Major in Power Systems also at Mapua in 2003. At present, He is taking up his PhD EE (Power Systems) at the University of the Philippines-Diliman while working as a part time Faculty and part time researcher at Mapua Institute of Technology. His research interest includes Power System Protection, Planning and Security, AC/DC Machinery, Microcontrollers, and Wind Energy Systems Jesus M. Martinez, Jr. is a graduate of Mapua Institute of Technology, Manila, Philippines, with a degree of Bachelor of Science in Electrical Engineering (1999) and Bachelor of Science in Electronics and Communications Engineering (2000). He is a full-time faculty member of the School of Electrical, Electronics and Computer Engineering of the Mapua Institute of Technology. His field of interest includes Power Electronics, Control Systems and Signal Processing. Jaypee V. Tecson is a graduate from MAPUA Institute of Technology with a double degree of Bachelor of Science in Electrical Engineering Program and Master of Science in Electrical Engineering Program Major in Power Systems (Joint BSMS-EE). He was a grantee of Ramon Magsaysay Scholarship Program on his second year level. He was also a member of Institute of Integrated Electrical Engineers of the Phil. Inc, Mapua Institute of Technology Student Chapter and served IIEE-MIT Student Council as an Academic Co-chairman. He also participated in the 21st IIEE regional quiz show in 2007. His field of interest includes Power System Protection, System Harmonics and Computer Aided Design of Power Systems. This article is for general information only and is not a substitute for professional advice where the facts and circumstances warrant. The views and opinion expressed above are those of the author and do not necessarily represent the views of the Institute.



4th QUARTER 2011

Technical Feature

Power Quality Case Study:

Harmonic Problem When the engineer arrived at the plant, he took out his notebook and his Fluke 43B. He then made the following notes and one line diagram: 1500 KVA Utility



Secondary current: 57A rms Secondary current spectrum: Fundamental 55 Amps 2nd harmonic 1.6 3rd harmonic 2.5 4th harmonic 0.7 5th harmonic 2.4 6th harmonic 0.4 7th harmonic 4.0

Amps Amps Amps Amps Amps Amps


Theory and Analysis 120/208


Fig. 1 Partial one-line diagram of large commercial building

Transformer size: 1500 kVA Measuring Tools: Power Quality Analyzer Operator: Access Frontier PTE LTD Features Used: Current, Harmonic Spectrum, THD Problem Description This case history comes from an electrical contractor. Several of this contractor’s clients operate large commercial buildings. One of these clients asked for help with a large transformer that had suddenly started vibrating and making a loud buzzing sound. The client was concerned that the transformer was ready to fail and he would be faced with an expensive replacement. The contractor dispatched an engineer at once.


Transformer configuration: Delta/wye, 480V 3-phase secondary Secondary Load: Motors, lighting, and office machines for a large office building

The voltage measurements do not show anything abnormal. The voltage total harmonic distortion is well within the maximum allowable value of 5%. Voltage balance between phases also looks good. The secondary current of 57A indicates the client was correct in stating the transformer was lightly loaded. No overheating was noted.

The engineer recorded the following data using the Fluke 43B:

When a transformer is in trouble, this contractor’s engineers always use a Fluke 43B to measure the harmonic spectrum of the secondary current. The spectrum acts like a fingerprint, indicating the types of loads present. In the above case, the presence of the 3rd harmonic shows that part of the load consists of single-phase devices (e.g., fluorescent lighting ballasts) connected phase to neutral. In the above data, the amount of the 3rd harmonic is relatively low and appears to be normal.

Secondary voltage total harmonic distortion: 2.7% Secondary voltage balance: within 1%

The 5th and 7th harmonics indicate that part of the load is a large 3-phase device with semiconductor rectifiers

Note: The client says the transformer is lightly loaded because many of the tenants have recently moved to a new location. Measurement Data


4th QUARTER 2011

Technical Feature

in the input circuit. The most common example would be an adjustable speed motor drive operating a fan or pump. When a 3-phase motor drive is operating normally, the input current waveforms are symmetrical about zero. That is, the positive going portion of the waveform looks like the mirror image of the negative portion. When all semiconductors are operating normally, the input currents have no dc offset and only odd harmonics are present. The engineer noted that the spectrum had even harmonics (2nd, 4th, and 6th). These abnormal harmonics indicate the presence of dc current in the transformer secondary winding. Compare the example spectrums in Fig. 2 and Fig. 3. Unfortunately, dc current tends to saturate the transformer core at the peak of one half of the ac waveform. When the core goes in and out of saturation, it will vibrate and make a loud buzzing noise. The engineer suspected that the plant load contained a large motor drive and that one of the input semiconductors had failed open. If one semiconductor is open, the circuit on that phase becomes a half-wave rectifier—it produces dc current. The trick here is that the motor drive will continue to operate at low speed because the other two phases are operating normally. Solution The engineer asked if any large motor drives were operating. The plant manager confirmed that one large drive was operating a ventilation fan. The engineer instructed the plant manager to have the drive shut off. When the drive was shut off, the transformer immediately stopped vibrating.

Fig. 2 Example of a normal ac current spectrum with all odd harmonics

Fig. 3 Example of an abnormal current spectrum with both odd and even harmonics

The EU-Asia Power Quality Initiative (APQI) aims at improving power quality in Asian manufacturing industries by creating awareness on the origins of the problems and building capacity on the technical, financial and managerial aspects of power quality. This article is for general information only and is not a substitute for professional advice where the facts and circumstances warrant. The views and opinion expressed above are those of the author and do not necessarily represent the views of the Institute.



Technical Feature

Equipment PQ Performance Standards Dean Arnold S. Sempio and Rolan S. Mercado

MERALCO In the days before computers, most electrical loads consume power linearly – that is, the current drawn traces the voltage waveform. Today, the widespread use of electronics in the industries has created a demand for better power quality as electronic equipment are not as tolerant of voltage waveforms and events as the old loads. Ironically, these electronic equipment are non-linear loads that draws nonsinusoidal current and causes voltage waveforms to be distorted.

Developed in the 1970s (originally, the CBEMA, Computer and Business Equipment Manufacturers Association) and revised in 2000, the ITIC (Information Technology Industry Council) curve is now one of the most common tools available to engineers; using the ITIC curve can help point map the sensitivity of electronic equipment or help improve the performance of a power distribution system. Here is the ITIC curve:

The ITIC curve shows two lines representing the upper and lower limits. In the upper limit, voltages up to 500% of the nominal may not cause damage to IT equipment IF the duration is below the curve’s specified time limit. This category includes voltage transients as well as voltage swells.

These tools are incorporated into several power monitoring equipment output as aid to the engineer’s study on voltage tolerance of equipment as well as providing a list of disturbances in the power grid being monitored. The usefulness of these tools is illustrated in the case study below:

The SEMI F47 standard is another voltage sag susceptibility curve which is intended specifically to semiconductor manufacturing equipment, which include etch equipment, thermal equipment and ion implant equipment.

Semiconductor Processing Equipment



Prohibited Region Voltage Tolerance Envelope Applicable to Single–Phase 120–Volt Equipment 200

140 120


No Interruption In Function Region



.001 c 1 us

0.01 c

1c 1 ms

3 ms

20 ms

10 c

100 c 0.5 s

10 s






SEMI F47 “Specification for Semiconductor Processing Equipment Voltage Sag Immunity” defines the voltage operating limit that semiconductor processing equipment can operate through without stopping its operation. Voltage values below the SEMI F47 curve may cause the semiconductor equipment to malfunction or stop operating altogether due to lack of the required operating energy.

Steady State

Duration in Cycles (c) and Seconds (s)



A semiconductor manufacturing company has requested a power quality monitoring due to “voltage fluctuations” (i.e. voltage sags) affecting the operation of their equipment, particularly their tunnel furnace. A Power Quality monitoring device was installed at the panel serving the customer equipment. PQ Monitoring Results


No Damage Region






Percent of Normal Voltage (RMS or Peak Equivalent)




80 70



ITI (CBEMA) Curve (Revised 2000)


Semi f47 Required Semiconductor Equipment Voltage-Sag Ride-Through Capability Curve

100 Voltage (%r)

Various “ride-through capability standards” were made in order to aid manufacturers and the electric utilities in establishing a common viewpoint of how electrical equipment would behave on certain voltage events. Manufacturers design equipment based on the “compromised” levels between the equipment capability and grid performance of the utility.

4th QUARTER 2011

The data from the monitoring showed that the voltage regulation, voltage unbalance and voltage harmonic distortion to be within industry parameters. However, the data from the monitoring also captured several voltage sags events. The characteristics of the voltage sags (voltage magnitude and duration) were plotted in the SEMI F47 curve:

Technical Feature

tap setting be changed to increase the secondary voltage. The increased voltage will still be within the operating limits of the VSD but will increase the stiffness of the electrical system against voltage sags.


Events Violating SEMI Curve: 3

0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1




The usefulness of equipment operating standards is not limited to utilities and equipment manufacturers. Ultimately, the equipment users will also benefit from the increased reliability and use of equipment that passes these operating standards.

0 1000




Duration (seconds)

According to the company, the tunnel furnace has stopped operating more than 7 times during the monitoring period; much more than the three events that violate the SEMI F47 curve. This suggests that the equipment is much more sensitive to voltage sags as it should be.

voltage unbalance and voltage harmonics were all within industry limits and should pose no problem to the VSD operation. However, the following voltage sags were captured by the equipment: ITIC Magnitude-Duration Scatter Plot


Solution A UPS unit was recommended to increase the voltage sag tolerance by providing power to the equipment controls during a voltage sag event. The customer was surprised when the equipment vendor pointed out that there is a UPS option for their equipment, the customer need only to specify for the UPS option to be installed.

Total Events: 79 Events Violating ITIC Lower Curve: 6 Events Violating ITIC Upper Curve: 0 2





Variable Speed Controls Problem A customer in the manufacturing business has complained that frequent voltage sags has reduced the operating time of a vital equipment being controlled by a variable speed drive. Power Quality monitoring A Power Quality Analyzer was installed at the panel serving the customer equipment. The data from the monitoring shows that the voltage regulation,

Voltage Magnitude (pu)


Voltage Magnitude (pu)

1 Total Events: 22






0 1000

Duration (Seconds)

Most of the sags captured were verified by the customer as enough to cause the stopping of the VSD operation. Solution The data showed that most of the voltage sags were “shallow”; the voltage values went down to only 88% from their nominal values. A cost effective solution was recommended as the PQ engineer observed that the equipment is being sole load of a secondary transformer. It was recommended that the transformer’s

This article is for general information only and is not a substitute for professional advice where the facts and circumstances warrant. The views and opinion expressed above are those of the author and do not necessarily represent the views of the Institute.






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2011 IIEE Magazine 4th Quarter Issue