Numerical calculation of grounding current through Capacitive Voltage Transformer due to substation switching operation

被引：0
|
作者：
Liu, Lei [1 ]
Cui, Xiang [1 ]
Qi, Lei [1 ]
Li, Lin [1 ]
Gao, Changzheng [1 ]
机构：
[1] N China Elect Power Univ, Minist Educ, Key Lab Power Syst Protect & Dynam Secur Monitori, Baoding, Hebei, Peoples R China
来源：
2006 IEEE INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY, VOLS 1-3, PROCEEDINGS | 2006年
关键词：
CVT; FDTD; grounding current; substation; swiching operation;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The constituent of Capacitive Voltage Transformer (CVT) are almost capacitances in primary side, and they act essentially as a short circuit to the transient current produced by a switching operation, which will generate high grounding current. Because capacitance is lumped parameter, so this paper use Finite-Difference Time Domain method (FDTD) to build calculation formula of Multi-Conductor Transmission Lines (MTL) whose branch points has lumped parameter network. Based on the formula, the grounding current through CVT produced by substation switching operation has been calculated. The calculation results of this paper are anastomotic with the simulation based on EMTP. It has certain consult meaning for the research of substation electromagnetic interference (EMI) on primary and secondary equipments.
引用
收藏
页码：518 / 521
页数：4
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