1000kV特高压变电站站用电大变比电流互感器带负荷试验方法探讨

Discussion of large ratio current transformer load test methods of station power in 1000kV UHV substation

电流互感器带负荷试验可以有效地对二次回路接线正确性进行检查．但对于特高压变电站来说，由于变电站站用电电压等级高、站用负荷电流小的特殊性，其110kV侧大变比电流互感器带负荷测试存在一定的困难。论文对特高压长治站一期和二期站用电大变比电流互感器带负荷试验方法进行介绍和探讨，希望对特高压其他在建工程此类问题提供参考和借鉴。

The secondary circuit wiring correctness of Current Transformer（TA） by a load test can be effectively checked, but for UHV substation because of the particularity of station power voltage level and station load current, there are some difficulties in the large ratio current transformer of 1 10kV side with a load test.In this paper the large ratio TA load test methods of UHV Changzhi station power are described and discussed.A reference is provided for such problems of UHV construction in progress.