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Furnace transformers
IS: 2026
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Converter transformers
IS: 4540, IEC: 146 & IEEE: 444
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System earthing transformers
IS: 3150 & BS: 4944
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