I have 4 cables from a power supply which are 3 phase WYE 208 volt. so if I measure between neutral and hot I get 120V.
The problem is that I need to hook up a compressor for 110V single phase (just normal wall socket) to this particular combination.
Question 1: Is this just a bad idea to begin with since the phases are 120deg apart instead of 180? If it is is there some gadget I can buy to convert correctly?
Part 2: My attempt: so I tried to hook it up and I soldered the neural to the ground of a cut 3 prong extension cord, the I soldered a hot wire to the small and large hole of the plug. This was a bad choice because after I ran the compressor I triggered the circuit breaker. Then i realized that i was feeding it 240V instead of 110V.
Question 2: Do you think I should try to leave the ground on the prong open and instead solder the neutral to the small hole and one of the hot wire (does it matter which) to the big hole. This way I would supply the compressor with 110V?
As far as I understand, it doesn't matter now that the phase is 120 between the hot wires, because I am using neutral to hot, right?