hi
if i have open delta connection that connect to relay to detect earth fault u0.
the pt is 0.1/3 kv.
in normal condition each phase is 33.3v and the sum is 0
if i have a ground fault in one phase what im going to measure each fhase?
hi
we have open delta connection for earth fault (drawings attach )
there is a way to no in which phase i have the ground fault before i check with megger?
i mean after i disconnect to 2 transformer and i have just the bus bar...