If we have a 3 phase AC, unbalance system (or delta-Y system or Y-delta), how many PT & CT do we need to measure the load? Should it be (3) CT & (3) PT??
If there is a neutual in the system, do we need (1) more CT & (1) more PT?
In the text book didn't say much about this topic. Any link or advise for Instrument & Measurement section??
Thanks,
Beth
If there is a neutual in the system, do we need (1) more CT & (1) more PT?
In the text book didn't say much about this topic. Any link or advise for Instrument & Measurement section??
Thanks,
Beth