开关柜HMI和综合保护装置EMC问题及解决

某地铁工程变电所送电过程中发现35kV开关柜保护装置有误跳现象,HMI有死机并重新启动现象。现场采取了临时应急措施,在满足工期要求的同时,避免了重大事故的出现。同时,找出原因后,在工厂试验室进行了不同解决方案测试,采用了相关的抗干扰方案,最终有效解决了保护装置误跳、HMI死机重启的问题。

Some Issues of Switch Cabinet and Compound Protection Device EMC and Their Resolution

There is miss tripping phenomenon on 35kV switch cabinet protection device in power transmitting to the substation for one subway project, and there is phenomenon of HMI system halt and re-start. The emergency measures have been taken at site that have either satisfy the construction schedule or prevent the major accidents from occurred. Meanwhile, tests have be conducted on different solutions in factory lab after reasons being found, and the relative anti-interference solution has been adopted which has f...