Protective Potential/Voltage Transformers


  • Ratio Range : 30V to 0.72KV / 110V or 110/√3 or 110/3
  • Standard Accuracy Class :3P, 6P, 5PR, 10PR

KPP Series are range of Protective Potential or Voltage transformers. These PTs are used to actgivate the protective relay in case of a abnormal voltage and isolate a part of or the full system from the main supply. Apart from the standard ranges, we can design and manufacture for your specific requirements. Please feel free to get in touch with us if you need something that’s not listed in this datasheet.

  • Manufactured as per IS-3156, IEC-61869 & C-57 as required by customer.
  • Singles and Three Phase units are available.
  • Multi Windings can be given.
  • Available as PVC tape insulated Coils, Varnished fiber glass tape insulated Coils or Resin cast coils.
  • System Voltage: 30V to 0.72KV
  • Rated Secondary Voltage: 110V or 110/√3 or 110/3
  • Dielectric withstand Voltage: 3KV for 1 minute
  • Operating Frequency: 50Hz/60Hz
  • Overload withstand curren:t 1.2 x rated current continuously
  • Class of Insulation: A – For Tape Wound B – For Resin Cast
  • Standard Ambient Condition:s -5°C to +45°C
  • Altitude: Up to 1000mtrs above mean sea level