Current & Potential Transformers

Current and voltage transformers are used to connect these devices to the high-voltage system and are therefore called instrument transformers. The current transformer transforms the current at high-voltage to a current at low-voltage enable its use in relays and meters. The voltage transformer transforms the high-voltage to a low-voltage and is also called potential transformer.

Current Transformers (CT)
  • Range Offered – 11KV, 33KV & 132KV
  • Oil Cooled & Resin Cast
  • Secondary Current 5A & 1A
  • Primary Current upto1000 amps.
  • Both single, double & triple core
  • For metering, protection, special protection (PS)
  • Both single, double & triple ratio
  • Both wound type & bar type
  • Burden – upto100VA
  • STC – upto25 KA
  • Accuracy class – 0.5/ 1 for metering,
  • 5P10 to 10P20 for protection
Potential Transformers (PT)
  • We manufacture both single phase & three phase PT.
  • Burden – upto200VA/ ph.
  • Effectively earthed/unearthed
  • Accuracy Class – 0.2 / 0.5 / 1.0
  • Voltage factor -1.2 continuous & 1.5 for 30 sec.
  • Both for 3 phase 3 wire & 3 phase 4 wire system