1285MW Xayaburi HPP, 7 generators are running with full power and there is a DC earth fault in the system, how to locate the earth fault without shutting down the units? By using Bender PGH 185, I was able to inject 10mA current in the DC incomer supply cable, and with the current clamp I measured outgoing cables (plus and minus together in the clamp), at the end of the video you can see the Alarm sound, earth fault was located!
