Training Overview
This intensive 5-day practical training is designed to equip engineers and technicians with hands-on competence in power transformer testing, commissioning, diagnostics, and medium/high-voltage cable condition assessment using OMICRON CPC 100 and VLF test systems (Megger / HV units).
Participants will learn test principles, field execution, result interpretation, acceptance criteria, and fault diagnosis in line with IEC, IEEE, and utility best practices.
Day 1 – Transformer Basics & CPC 100 Practical Setup
Theory Session
- Transformer construction, ratings & insulation systems
- Commissioning vs maintenance testing philosophy
- HV safety, grounding & test permit procedures
- Introduction to OMICRON CPC 100 hardware & software
Practical Session
- CPC 100 unpacking, inspection & safe setup
- Connection of current & voltage leads on transformer terminals
- Test object grounding & safety checks
- CPC 100 software navigation & test configuration
- Live demonstration: basic excitation test
✅ Practical Outcome: Participants can safely set up CPC 100 and prepare a transformer for testing.
Day 2 – Transformer Electrical Tests (Hands-On)
Theory Session
- Purpose and standards for electrical tests (IEC / IEEE)
- Understanding test results & acceptance limits
Practical Session
- Winding Resistance Measurement (WRM)
- Transformer Turns Ratio (TTR) testing
- Vector group & phase displacement verification
- Short-circuit impedance measurement
- Interpretation of live test results
✅ Practical Outcome: Participants can independently perform core electrical tests on transformers.
Day 3 – Transformer Insulation & Commissioning Tests
Theory Session
- Insulation ageing, moisture effects & dielectric losses
- Pre-energization commissioning requirements
Practical Session
- Capacitance & Tan Delta (Power Factor) testing
- Bushing insulation testing (C1 / C2)
- Core grounding checks
- Temperature correction & trend analysis
- Final commissioning checklist simulation
✅ Practical Outcome: Participants can assess insulation health and approve transformer readiness.
Day 4 – Cable VLF Hipot Testing (Practical-Driven)
Theory Session
- MV/HV cable construction & insulation behaviour
- VLF vs DC vs AC testing methods
Practical Session
- VLF test set inspection & safety setup
- Cable identification, isolation & grounding
- VLF Hipot withstand testing on MV cables
- Test voltage selection & ramp-up procedure
- Pass/fail criteria & test documentation
✅ Practical Outcome: Participants can safely conduct VLF Hipot tests on power cables.
Day 5 – Cable Tan Delta & Partial Discharge Testing
Theory Session
- Dielectric loss & PD mechanisms in cables
- Condition-based maintenance concepts
Practical Session
- Tan Delta testing (absolute, stability & tip-up)
- Offline Partial Discharge testing using VLF systems
- PD source identification (joints, terminations, insulation)
- Result interpretation & asset condition grading
- Integrated transformer & cable commissioning case study
✅ Practical Outcome: Participants can diagnose cable insulation condition and recommend actions.
Target Participants
- Electrical Engineers & Technicians
- Commissioning & Maintenance Engineers
- Utility / IPP / Substation Personnel
- EPC & Power Project Engineers
Key Deliverables
International best-practice exposure
Practical hands-on sessions with real test equipment
Sample test procedures & checklists
Commissioning-grade test reports