Today i replaced the switchgear on a star delta circuit. Simple enough ....
When i pressed start nothing happens. So i realized my coil voltage was not right. So i took the old coils and put them in the new contactors.
The first question is would it damage a contactor or its coil if i gave it 110V on a 22Ov coil? I'm thinking no???
So then the circuit works after the change exept when delta pulls in the contactor chatters and shakes heavy before it pops the fuse on the transformer. So what could cause this?
Nothing wrong with the wiring because when i put the old contactor back it worked fine.
So it could be the coil but it was working an hour before i started, only thing i can think of is that it might be a dud contactor? is that possible?