Field services - Transformer maintenance
Transformers play an essential role within electrical networks. Any breakdown or incorrect operation can quickly result in very large damage costs. MDL Énergie inc. has a large experience in preventive maintenance to ensure proper transformer operation and to make sure that the transformer life does not degrade prematurely. Listed below are some of the measurements and tests that can be performed as part of a transformer preventive maintenance program:
- Transformer ratio measurement
- Oil sampling and analysis
- Cooling system test and inspection
- Gas and pressure relay test and inspection
- Auxiliary contact test
- Grounding test
- Winding, insulation and ground resistance measurement
- Dielectric insulation and power factor measurement
- Bushing and winding dissipation factor measurement
- Test and inspection of alarm and trips
- Frequency response measurement (FLRA)
