Medium Voltage Instrument Transformers

Medium Voltage Instrument Transformers

Medium voltage current transformers are suitable for measuring current in energy meters and switchgear panels with rated frequency 50Hz or 60Hz with nominal system voltage up to 33KV. They are intended to supply electrical measuring instruments, meters, relays or other protection devices.

Structure and Feature

•   Epoxy resin cast for indoor or Cycloaliphatic cast for outdoor purposes
•   Zero hassle in maintenance
•   Special provision for mounting
•   Customized structures as per your requirement.
•   Excellent performance
•   High quality paper-oil insulation
•   Oil expansion by stainless steel bellows
•   Oil level indicator
•   Changing of primary ratio by secondary taps
•   Ambient Temperature:-30 to 50 ° C
•   Mechanical Strength : As per IEC 61869
•   Metal Parts treated for corrosion resistance by PU paint and Hot Dipped Galvanizing Process

Ratings

Maximum System Voltage	36kV
Rated Frequency	50Hz,60Hz
Maximum Insulation level	36/70/170kV
Rated Continuous Thermal Current	120%, 150%, 200%
CT Rated accuracy Classes	0.1, 0.2, 0.2s, 0.5, 0.5s, 1.0, 3.0
CT Rated accuracy Classes – Protection	5P5, 5P15, 5P20, 10P10, 10P15, 10P20