Contact us

SRI ® Make Extra High Voltage (EHV) Transformers

Transformers with primary voltage of 66 kV and above are conventionally termed as Extra High Voltage (EHV) Transformers. These transformers are generally used in the transmission sector. We at Shri Ram Group Of Industries have facility to manufacture EHV transformer upto 50 mVA 132 kV class.


Rating Upto 50 mVA
Duty Type Outdoor/Indoor
Voltage Class 33, 66, 132 kV or as per customer’s requirement
No Of Phases 3 phase
Frequency 50/60 Hz
Vector Group Dyn5 or Dyn11 or YNyn0 or as per customer's requirement
Insulating Fluid PCB FREE Mineral Oil, both inhibited & uninhibited, as per IS/IEC and customer requirement
Class Of Insulation Class A
Tap Changer Off Circuit or On Load
Tapping Range + 2.5% X 2 for OCTC or + 1.25% X 4 & -1.25% X 8 for OLTC or as per customer requirement
Winding Material Copper with multi paper covering
Applicable Standards IS 2006,IEC76,ANSI,IEEE
Painting Enamel, Epoxy, Polyurethane or customer specific