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What are the operating rules of current transformers?
Aug 02, 2017

What are the operating rules of current transformers?

(1) the load current of the current transformer shall not exceed 110% of its rated value. Long time overload operation will increase measurement error and winding overheating or damage.

(2) under normal operation, no two circuit open circuit is strictly prohibited. Otherwise, thousands of volts of high voltage can be generated, endangering personal and equipment safety. And the two circuit must be grounded at one point (protection).

(3) the two circuit of the current transformer and the voltage transformer is not allowed to connect with each other.

(4) oil immersed current transformers shall be equipped with oil level gauges and breathing apparatus. (110 kV and above shall be full sealed or metal expander with micro positive pressure).


Add: No.38 South Taoyuan Road, Yaozhuang Town,Jiashan County, Jiaxing City, Zhejiang Province, China
Contact person: Elva Zhuang&Sunny Ni
Tel:+86-573-84775555
Fax:+86-573-84776699
Phone:+86-13732570078
E-mail:sales9@great-relay.com
sunny.ni@great-relay.com