Current Transformers Dealers in Okhla, Delhi

A Current Transformer is the measuring device for metering and protection system. The primary current of the CT is transformed into the required secondary current of 5 A or 1 A. Measuring CT's have different class of accuracy I.e. 0.1, 0.2S, 0.2, 0.5S, 0.5 and 1.0 and protection CT's have 5P10, 5P20 and 10P10. In the case of special protection CT's(PS class), the Knee Point Voltage(KV) of the CT is specified along with secondary resistance and magnetizing current. The construction of the CT not only depends upon the ratio but also on the Short Time Current Rating, Burden and Class of Accuracy.

amrest manufactures indoor type resin cast, outdoor type oil cooled current transformer with metering, protection and special protection purposes. The standard value of the secondary current in ct is 1a or 5a. The standard value of rated burden is up to 30va. (2.5va, 5va, 7.5va. 10va, 15va, and 30va) accuracy of class in metering ct is 0.1, 0.2, 0.2s, 0.5, 0.5s, 1.0 or 3. The standard accuracy class in protection ct is 5p, 10p or 15p and the accuracy limit factor 5, 10, or 15. The special purpose of current transformer applications is balanced protective system and distance protective schemes. The requirements of ps class are rated knee point voltage and maximum exciting current at the knee point voltage and the resistance of secondary winding at 75° c.

Current And Potential Transformers, MCB Switches, led canopy lights

Ammeters, kilowatt meter, Ohms Meter, portable dc meters