随聊
哈哈，分享一下工作！
直流接地故障是真的难查呀！！！
这次过来检修主要是查直流接地故障，前期很顺利，两个故障也就两天查出来咯，可是昨晚送电后又出现两个故障，只是这个故障比前面的故障更难查，因为直流正负极一端接地是可以正常运行的，关键这个负极还不是死接地，只是绝缘等级比较低，所以会出现正负极电压偏差，当绝缘等级太低时就会出现报警，今天一天是没有查明原因，明天早上还得继续，太难了。。。。
随聊
8 months ago by haoeeicc (65)
$0.66
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!shop,拍拍,三连
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