distribution

Features and Specifications

  • Provides earth fault protection for ungrounded system
Equivalent Rating Up to 20 MVA
Voltage Class Up to 33 kV
Neutral Fault Current & fault duration As per customer requirement
Auxiliary Load winding Up to 630 kVA as per customer requirement
Continuous Neutral Current As per customer requirement
Frequency 50/60 Hz
Cooling ONAN/AN
Vector Group ZN0, ZNyn1 or ZNyn11
Winding Material   Cu / Al  
Tapping Off circuit links/switch
Insulating Medium Mineral Oil, Esters, Resin/Varnish

Technical Specifications

Parameter Value
Special purpose transformer with zigzag or interconnected star winding
Provides ground fault protection in 3-Phase, 3 wire system
With or without auxiliary winding for supplying local loads
Supply segments Industries
EHV Substations