Epoxy Resin Cast Potential (Voltage) Transformers

Epoxy Resin Cast Potential (Voltage) Transformers

Epoxy Resin Cast Potential Transformers
  • Voltage Transformers are used to step down the voltage from a high value (say 33000 V) to a lower value (110 V) suitable for measuring instruments like voltmeters, energy meters and protective relays.
  • Residual Voltage Transformers (RVTs) are special type of Voltage Transformers used to protect the Capacitor Banks from Earth fault.

Advantages Of Voltage Transformers

  • Provides electrical isolation between high voltage power circuit and measuring instruments
  • Reduces insulation cost of measuring instruments
  • Assures the safety of operators
  • Reduces utility losses
  • Protects the device during fault conditions
Technical Specifications
System Voltage Upto 132 KV
Primary Current Upto 132,000 V
Secondary Current 1 A or 5 A
Secondary Voltage 110 V, 220 V
Type Oil Immersed / Dry Type
Rated Frequency 50 Hz
Accuracy Class (Metering) 0.2, 0.5, 1
Accuracy Class (Protection) 3P, 5P, 10P
Rated Burden 10 VA to 1000 VA
Applicable Standard IS16227, 3156 IEC61869, 60044

Fittings & Accessories

  • Porcelain Bushings
  • Primary & Secondary Terminals
  • Terminal Connectors
  • Oil Level Indicator
  • Nitrogen Filling Valve
  • Pressure Release Device
  • Junction Box (optional)