Method for calibrating a Rogowski coil of fast time response

被引:8
作者
Liu, Rui [1 ]
Wang, Xinxin [1 ]
Zou, Xiaobing [1 ]
Yuan, Jianqiang [1 ]
Zou, Naigong [1 ]
He, Luya [1 ]
机构
[1] Tsing Hua Univ, Dept Elect Engn, Beijing 100084, Peoples R China
基金
中国国家自然科学基金;
关键词
D O I
10.1063/1.2764373
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
A new method was designed for calibrating a Rogowski coil of fast time response. The method is based on the cable pulser method except that the voltage signal pick-off output was moved to a position with a distance l from the load. If 2l/v is longer than the time duration of the forward voltage pulse u(f)(t), the reflected voltage pulse u(r)(t) could be separated from u(f)(t) and directly measured. Using the formula i(t)=[u(f)(t)-u(r)(t)]/50 to calculate the primary current of the Rogowski coil, the coil could be more accurately calibrated.
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