Technical Programs
Transformer Diagnostics
OVERVIEW
Transformer Diagnostics is a specialized training program focused on the assessment, testing, and condition monitoring of power transformers to ensure safe, reliable, and efficient operation in electrical power systems. It provides participants with both theoretical understanding and practical skills in identifying early signs of transformer degradation and failure.
The program aligns with internationally accepted test standards used in substation asset evaluation, ensuring participants are updated with global best practices in transformer maintenance and diagnostics. It covers the scientific principles behind transformer operation, insulation behavior, and failure mechanisms, enabling a deeper understanding of how transformers perform under different operating conditions.
LEARNING OBJECTIVES
By the end of this 2-day program, the participants will be able to:
- Explain transformer construction, operation, and common failure mechanisms.
- Conduct transformer field testing and interpret diagnostic results.
- Identify and analyze partial discharge signals for early fault detection.
- Perform oil sampling and interpret dissolved gas analysis (DGA) for condition assessment.
- Apply insulation power factor testing to evaluate insulation health.
- Utilize sweep frequency response analysis (SFRA) for detecting winding movement or deformation.
- Use infrared thermography to identify thermal issues in power system assets.
- Understand and apply INFRA standards in testing and monitoring rotating electrical machines.
TOPICS TO BE DISCUSSED
Day 1
- Module 1: Transformer Field testing / Diagnostics
- Module 2: Partial Discharge
- Module 3: Transformer Fundamentals
- Module 4: Transformer Condition Monitoring using Oil Analysis Maintenance
- Day 2
- Module 5: Insulation Power Factor Theory and Application
- Module 6: Sweep Frequency Response Analysis
- Module 7: Infrared Thermography for Power Assets
- Module 8: INFRA Electrical – Rotating Standards
RESOURCE PERSON 1

Engr. Eduardo Pabuna Jr., PEE
Assistant Vice President - Engineering Solutions
Westco Electrical & Equipment Corp.
He has 25 years of accumulated experience in Condition Base and Preventive Maintenance Testing, Power Systems Protection, Electrical System Design and Analysis, Electrical Safety and Technical Sales.
RESOURCE PERSON 2

Engr. Alex Castro, PEE
Assistant Vice President – Engineering Services
Westco Electrical & Equipment Corp.
Engr. Castro graduated Bachelor of Science in Electrical Engineering from Technological Institute of the Philippines. He attended trainings on Variable Frequency Drive Control Methods & Applications, Condition Assessment of Electrical Equipment, Power Circuit Breaker Testing & Maintenance.
Some of his achievements in the field are Online bushing monitoring of two (2) units Power Transformer in XIAN ELECTRIC & NGCP (SUBA & AMLAN) substations), Comprehensive Transformer Testing with Dissolved Gas Analysis and comprehensive oil test of 3.75 MVA, 3 phase Power Transformer in Wyeth, Philippines.
Engr. Castro's exposure to testing of substation apparatus, made him an expert in the field; such as power transformers, potential transformers, current transformers, circuit breakers, disconnect switches and surge arresters equip him with the technical knowledge and experience to share in his seminars
RESOURCE PERSON 3
Hope Pallones, RCh
Laboratory Chemist
Westco Electrical & Equipment Corp.
Ms. Pallones graduated Bachelor of Science in Chemistry in Pamantasan ng Lungsod ng Maynila. she has twenty years of experience in chemical laboratory analysis. She has a solid background on ISO 17025, ISO 9001, cGMP based on PICS and FDA In addition, she has significant experience in auditing based on ISO 17025 and ISO 9001. Also, a significant exposure in equipment calibration on the laboratory.
Extensive knowledge on quality control, good laboratory practices and good manufacturing practices. She attended a training on Condition Assessment through Laboratory Analysis by DOBLE Engineering.
RESOURCE PERSON 4
Mr. Vincent Jason Peñalosa
Certified Level 3 Thermographer
Mr. Jek Peñalosa graduated BS Commerce from the University of Sto Tomas and later took a special course in audio technology from Digidesign Pro Tools Certification Program in California, USA. He is a certified Pro Tools Music and Production Operator (First in the Philippines, First in Asia).
As an audio engineer himself, he was recognized by one of the two Asian technical persons in digital audio. He also conducts lectures to broadcast stations, primarily in ABS – CBN and other broadcast stations on audio systems.
He received his Level 3 Certification in Thermography through the Infrared Training Center of Sweden, Stockholm. Mr. Jek attended power system training and seminars from Bender systems in Germany, Doble Engineering conferences for many years, and attended various training in the power system in Asia, US, and Europe. He now works full-time as VP for Sales and Marketing of Westco Electrical & Equipment Corp.
He is also PamavTech’s Resource speaker for Infrared Thermography and Power Quality and Harmonics.
REQUIREMENTS
- This training is open to electrical engineers, technicians, electricians, maintenance personnel, testing and commissioning personnel, students, and individuals involved in transformer operation and maintenance.
- Participants with basic knowledge in electrical systems, transformer fundamentals, and electrical safety are encouraged to join.
- Familiarity with transformer testing and preventive maintenance is an advantage.
- No advanced diagnostic experience is required for introductory-level programs
- Participants may be advised to bring a personal laptop for technical discussions, demonstrations, and workshop activities.
TRAINING INCLUSIONS
- Certificate of Attendance
- E-Handouts
- Meals (for in-person training)
- Earn CPD Points for ELECTRICAL ENGINEERING
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