I installed a mag starter the other day for a customer. He called me today and said the mon press or won't start. When i get there and check the voltage at the kill switch box, (it's a 240 single phase) L1 to L2 reads 322v. N to L1 was 140 same with n to L2. And so on and so on. Until now I have...
I get it now. The hi leg is on 3 in stead of middle position. Then they brought out the legs for 220 they didn't check to see witch was the hi leg. Thank you very much.
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Test From main box.
n to L1 121.6
n to L2 121.8
n to LA 210.6
L1 to L2 241.6
L2 to L3 243.3
L3 to L1 242.7
making a delta 240 3 phase.
kill switch box.
N to L1 210.8
n to L2 121.5
L1 to L2 242.8
I will post some pictures in about an hour. The test took place at the cut off box. When i get there I will map out the eletrical for the building. Thank you for helping me out.
I'm installing a magnetic starter for a compressor and when I go to test the lines coming in I get- L1 to common 242v, LA to common 121v, then phase to phase I get 241v. It won't energize the 240 coil with or without pressure switch. I can manually push in the coil it will run but when I let go...