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Power Transformer

STC offers Power transformers up to a range of 5000 kVA and are suitable for commercial and industrial establishments. The power transformers are equipped with radiator and are with a sealed tank. Transformers with conservator can also be provided.

The Power transformers can be offered in ONAN/ONAF configuration. The windings are made up of copper. However, aluminum can be provided on request. Standard color is RAL 7033 and other colors are available on request.

Technical Parameters

kVA - up to 5000
Phases - Three
HV Rating - up to 34.5 kV *
LV Rating - up to 1000 V *
BIL - up to 200 kv
Vector Group - Dyn 11*
Frequency - 50Hz, 60 Hz, 50/60 Hz

*other vector groups available on request

*other ratings available on

Standard Accessories

HV bushings
LV bushings
Off circuit tap changer
Thermometer with 2 contacts
Oil level Indicator with 2 contacts
Pressure relief device
Lifting lugs
Drain valve
Earthing terminal

Optional Accessories

Winding Temperature Indicator
Buchholz Relay
DGPT-2 Relay
Lightning Arrestors
Pressure relief device with 2 Contacts
Oil filling and Sampling Valve
Pressure relay
Terminal box