由于接线错误而导致对变压器铁芯接地电流的误判及其分析

Wrong Connection Caused False Estimation of Core Grounding Current in Transformer and Its Analysis

介绍变压器铁芯和夹件接地回路及变压器铁心多点接地检测装置。对由于铁芯与夹件接地引出回路接线错误由此因外界电磁场在寄生回路上产生的感应电流进行了分析,提出了工程施工中应注意闭合回路问题。

The device to check if there are multi-grounding locations in transformer core and to check the grounding circuit of core and clamping pieces are introduced. What due to wrong connection of the grounding lead circuit of core and clamping pieces, and outside electromagnetic field caused an induced current in the autoeciousness circuit is analyzed, and the closed loop problem that should be adverted in engineering constructing is also presented.