If a phase to phase fault happens on a cable, then current differential, phase comparison and directional relays wont be helpful because the measured values at the start and end of the cable will be the same, correct?
So this leaves only the over current relay protection scheme as a viable option for phase to phase faults?
Am I correct in this thinking?
So this leaves only the over current relay protection scheme as a viable option for phase to phase faults?
Am I correct in this thinking?