Product Categories

Contact Us

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

current-transformer

Home > News > Content
The Protection Of Current Transformer In The National Standard
Jan 12, 2018

The protection of current transformer in the national standard

The correct level code of the protective current transformer is specified in the GB1208-64 standard, and the over current protection is 3. Differential protection for D, in the GB1208-75 standard for B, GB1208-87 and GB1208-1997 in the standard provisions of protective current transformer, the accurate level accuracy at the rated accuracy limit the maximum allowable percentage of composite error a nominal current, then marked with the letter "P" said protection. For current transformer standard accuracy for 5P and 10P. Example: 5P10, the 10 behind is the exact limit coefficient. (10% times similar to the old standard)


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