Furnace transformers: Up to 25000 kVA, 66 kV class,Converter transformers: Up to 20000 kVA, 33 kV class,HV power frequency: Up to 1200 kV, 1200 kVA testing transformers,Short circuit testing transformers: Up to 100 kA for 1 second,Cast resin transformers: Up to 10000 kVA, 33 kV class,Earthing Transformers: For system up to 33 kV class Neutral Grounding Transformers,Flameproof Dry Type Mining: 200 kVA to 500 kVA, up to 6.6 kV class TransformersTranswitch Units