I have attached a 3-phase reading between an MCC and a motor drive. Phase B is causing the ground fault; which is what's causing the thin high peaks on the readout. The drive is on the load side of a reactor. What I can't figure out is why Phase C is almost flat line while Phase A reflects...
Thanks for the advice, catsereng. We bought them as a back-up but ended up using the manual ground and test device that maintenance felt more comfortable using. Again, thanks for the advice, MikeL!
Ed
Hi All,
I am looking for advice on phase testing between two Westinghouse VCP-W's. We want to energize the phases between two buses and do a hot stick test to confirm that we do not have any of our phase cables crossed with another phase. The problem is how do I keep the shutters opened on...