Indoor voltage transformer single pole TJC

Medium voltage Indoor voltage transformer TJC are casted in epoxy resin, equipped without fuses designed for insulation voltages up to 36 kV (40.5 kV).

A single phase voltage transformer which is intended to have one end of its primary winding directly earthed.
The transformers are designed and manufactured in conformity with the following standards and recommendations: IEC, VDE, ANSI, BS, GOST and CSN, others on request.

Product scope

  • TJC 4.x are designed for insulation voltages from 3.6 kV to 12 kV.
  • TJC 5.x are designed for insulation voltages from 12 kV to 17.5 kV.
  • TJC 6.x are designed for insulation voltages from 17.5 kV to 24 (25) kV.
  • TJC 7.x are designed for insulation voltages up to 36  (40.5) kV.

Key benefits  

  • Ready for tariff metering
  • Can be mounted in any position
  • Over voltage factor 1.9xUn/8h as a standard
  • The wide range of supported standards, including IEC 61869, allows a huge number of modifications on the individual request of each customer
  • Better performance thanks to extended burdens for each accuracy class - TJCH types

Key features

  • Primary voltage 3000/√3 - 35000/√3 V
  • For measuring and protection with up to 3 secondary windings
  • Reconnectable versions available
  • DIN dimensions available


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