Ryan88
Member
- Location
- Philadelphia, PA
Hello all. I'm new to the forum so go easy on me.
In 17 yrs doing electrical I've only come accross high leg 3 phase a handfull of times. As I understand it you should have 120v on two phases and 190v-200v on other phase. I'm getting 136v on A phase, 109v on B phase and 210 on C phase from hot to neutral. 244v from phase to phase. I recently replaced a motor starter for a new customer and the 120v coil burnt up in a week. Replaced the coil and it started right up but seems to be running hot and starting to get that electrical burn smell. Its -120v coil. First time I tapped the coil on A phase. This time switched to B phase. Any thoughts on whats going on here. Also, is it normal to have such a big differential in voltage from two 120v phases?
In 17 yrs doing electrical I've only come accross high leg 3 phase a handfull of times. As I understand it you should have 120v on two phases and 190v-200v on other phase. I'm getting 136v on A phase, 109v on B phase and 210 on C phase from hot to neutral. 244v from phase to phase. I recently replaced a motor starter for a new customer and the 120v coil burnt up in a week. Replaced the coil and it started right up but seems to be running hot and starting to get that electrical burn smell. Its -120v coil. First time I tapped the coil on A phase. This time switched to B phase. Any thoughts on whats going on here. Also, is it normal to have such a big differential in voltage from two 120v phases?