Empanelled with PGCIL GOI Accredited Star Export house In House NABL Accredited Test Lab BIS Certified Transformers upto 2500 KVA/33 KVA class ISO 9001: 2008 ISO 14001: 2004 OHSAS 18001: 2007
Photograph of 34.5 kV, 180 kVA Zig-Zag connected Earthing & 34.5/0.415 kV 150 kVA Delta/star connected Auxiliary Transformer, keeping the assembly in one common tank.


  • The earthing transformer is used for limiting earth fault current during earth fault created in the system and simultaneously distribution transformer is used for supplying auxiliary supply of 415 volts for the substation.
  • The values of zero sequence Impedance are specified according to short time neutral current to the fault condition. Auxiliary Transformer is according to the specifications SAN 780 / IEC 60076.
  • Auxiliary Transformer is fitted with an Off Circuit tap switch on HV side & housed in common tank.
  • Such ratings up to 500 kVA and up to 34.5 kV class can be supplied.
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