微机零序电流方向保护检验探讨

根据多年来从事继电保护综合自动化系统现场调试工作的经验，结合大电流接地系统在发生接地故障的特点，从正方向和反方向接地故障两个方面简要介绍了微机零序电流方向的保护原理。探讨了微机零序电流方向保护的调试方法及其特点，根据不同厂家装置的特点总结了现场调试过程中需注意的问题，得出了实际检验调试过程中的注意事项。

Discussion about microcomputer-based zero sequence current directional protection

According to the experiences from the scene debug of the integrated automation system over the years and characteristic of neutral point effectively earthing,this paper simply introduces the principles about the microcomputer-based zero sequence current directional protection from positive-earth fault and the negative earth fault.In addition,it discusses the debug way and characteristics about microcomputer-based zero sequence current directional protection.Meanwhile,it sums up the points worth paid attenti...