Hi All,
I'm having a little difficulty with a transformer I recovered from a photocopier. It appears to have two primary windings and when I put 240 volts to either of the windings the circuit breaker trips out and cuts the power supply. Both circuits appear to be ok, not shorting to ground or any signs of failure. The only logical thing I can think of is that the insulation on the primary windings has failed and it is shorting. The secondary winding is open circuit, is that an issue? Anyone have any comments?

Cheers
Splint