Cast Resin Transformers
At SALTECH, we offer Resin Impregnated Dry Type Transformers up to 5 MVA, 11 KV Class from Voltamp Transformers Limited (in collaboration with MORA, GERMANY), and Cast Resin Dry Type Transformers up to 12.5 MVA, 33 KV Class from VOLTAMP (in collaboration with HTT, Hann Munden, GERMANY). These transformers are backed by time-proven designs supported by reliable field experience.
Applications of Cast Resin Transformers:
- Cast-resin dry-type transformers are widely used indoors, especially in fire hazard areas and underground flooding areas.
- Generally, cast-resin transformers can be widely used in shopping malls, subway stations, sports grounds, auditorium, pumping stations and flooding areas.
Specifications:
- Ratings: 25 KVA to 12,500 KVA
- H.V. Voltages: 3.3, 6.6, 11, 22, 33KV. Voltages lower than 3.3kv available on request.
- L .V. Voltages: 433 V and around. Voltages up to 11KV available on request.
- Insulation Class: F (90°C Temp. Rise), Others available on request.
- Applicable Standards: IS11171 / IEC 60726
- Duty: Distribution & Power Transformers, Rectifier/ Thyristor duty, Induction Furnace Duty, Lighting, Isolation, Generator Excitation.
Advantages of Cast Resin Transformers:
- No Fire Hazard
- Can be placed near the load center
- Reduces cable drop
- Negligible smoke generation
- Suitable for indoor and outdoor use
- Can withstand temperatures as low as -25°C ambient temperature
Manufacturing Process:
- Core: Three-limb core construction made from Cold Rolled Grain Oriented (CRGO) Silicon Steel sheets.
- Windings: Made from copper conductors, cast under vacuum.
- Protection: Thermistors for protection against Overload/high winding temperature, with ALARM and TRIP features available when required.