Power transformers – Operation and maintenance (C4242)
What will I learn from this course?
- Understand power transformer technology
- Ensure the safe and correct operation, maintenance and testing of the transformer
- Assess the condition/behaviour of equipment and maintenance requirements
- Identify critical areas and interpret test results
Topics
Technical considerations in the operation of a power transformer
- Theoretical model and attributes – CFVX, losses, voltage control
- Voltage impedance and regulation
- Overvoltage and overloading
- Capability
- Who operates a transformer?
Accessories
- Tank types, conservator types
and dehydrating breathers
Temperature indicators (oil /winding) - Cooling modes
- Bushings
- OCTC
- Other accessories
Indicators, protection
- Indicators and relays
- Main tank and OLTC pressure devices
- Other protective devices (differential protection, restricted earth, tank protection….)
Manufacturing process
- Transformer assembly process in factory
- Laboratory tests
Transportation, erection and commissioning
Periodical controls, tests and maintenance
- Maintenance plans and inspection
- Oil quality tests
- DGA
- Maintenance strategy and tasks
- TBM, CBM, RCM
- Fault levels, leaks, oil quality, bushings, tap-changer
Analysis of tests and controls
Protections and troubleshooting
Transformer failure/modes detection and risk mitigation
Note: practical work may differ, depending on equipment and materials available on site
| Duration |
|---|
| 1-5 days |
| Who should attend? |
|---|
| Technicians involved in the operation and maintenance of High Voltage substations, engineers working in HV substations |
Learning path
| Prerequisites | C4242 | Next step |
|---|---|---|
| A4201 Basic knowledge in electricity and mechanics Electrical qualification | 60% Practical 40% theoretical |
This training can be provided on site at your own convenience. Practice in operational conditions.
Power transformers – Operation and maintenance (C4242)
What will I learn from this course?
- Understand power transformer technology
- Ensure the safe and correct operation, maintenance and testing of the transformer
- Assess the condition/behaviour of equipment and maintenance requirements
- Identify critical areas and interpret test results
Topics
Technical considerations in the operation of a power transformer
- Theoretical model and attributes – CFVX, losses, voltage control
- Voltage impedance and regulation
- Overvoltage and overloading
- Capability
- Who operates a transformer?
Accessories
- Tank types, conservator types
and dehydrating breathers
Temperature indicators (oil /winding) - Cooling modes
- Bushings
- OCTC
- Other accessories
Indicators, protection
- Indicators and relays
- Main tank and OLTC pressure devices
- Other protective devices (differential protection, restricted earth, tank protection….)
Manufacturing process
- Transformer assembly process in factory
- Laboratory tests
Transportation, erection and commissioning
Periodical controls, tests and maintenance
- Maintenance plans and inspection
- Oil quality tests
- DGA
- Maintenance strategy and tasks
- TBM, CBM, RCM
- Fault levels, leaks, oil quality, bushings, tap-changer
Analysis of tests and controls
Protections and troubleshooting
Transformer failure/modes detection and risk mitigation
Note: practical work may differ, depending on equipment and materials available on site
| Duration |
|---|
| 1-5 days |
| Who should attend? |
|---|
| Technicians involved in the operation and maintenance of High Voltage substations, engineers working in HV substations |
Learning path
| Prerequisites | C4242 | Next step |
|---|---|---|
| A4201 Basic knowledge in electricity and mechanics Electrical qualification | 60% Practical 40% theoretical |
This training can be provided on site at your own convenience. Practice in operational conditions.
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