Our Services
At Transformadores CDM, we offer Maintenance, Repair, and Rebuilding services at our facilities for all types of transformers (distribution, pad-mounted, semi-submersible, and open dry-type) and Specialized on-site services through our strategic partner CDM Mantenimiento y Servicios, providing solutions to maintain and/or restore the optimal performance of the equipment, ensuring reliable electric service and extending the asset’s lifespan.
Medium Power Transformers
- From 500 KVA to 850 KVA, 15 KV series
- From 500 KVA to 850 KVA, 34.5 KV series
High Power Transformers
- From 1000 KVA to 5000 KVA, 15 KV series
- From 1000 KVA to 5000 KVA, 34.5 KV series
- Initial electrical tests for asset diagnostics
- Calculation and manufacture of copper or aluminum windings according to the original design
- Cleaning, insulation replacement, and active part drying
- Dielectric oil replacement
- Electrical tests to validate service compliance
- Tank maintenance and painting
- Replacement of accessories required for service
- Dielectric oil regeneration with energized or de-energized equipment.
- Thermo-vacuum process with energized or de-energized equipment.
- Passive drying of the transformer’s active part on-site.
- Active part drying on-site (vacuum-heat method).
- On-site electrical tests.
- On-load tap changer maintenance.
- Dielectric oil sampling and analysis.
- Leak correction..
- General tank painting.
- Replacement of accessories required for service.
