3 phase 4 wire 120/208 system. Phase A pulling 50 amps, phase B pulling 50 amps, phase C pulling 0 amps. Is the neutral carrying a load? Or is does the system balance and leave no load on the neutral. OR would phase C need to pull 50 amps as well to fully balance the system. Possibly the same...

Guys, I need some help. I'm going to take my unlimited test next week and I know there's a load calculation on transformers. He question is a transformer diagram, the voltage is 120/208 volt. There's a total of 4 transformers.1 is 3 phase 30 kw continuously lighting load and is connected to the...