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  1. Iaconomechanic

    amperage loss on a 3phase motor with y-delta start up.

    Thank you Roydom for your info. It is so strange i have all the coils the right way. the motor comes up to full speed. When the wye is in i have even amps across all three legs but as soon as the delta kicks in i get this really funky amperage imbalance. But it only happens when the delta...
  2. Iaconomechanic

    amperage loss on a 3phase motor with y-delta start up.

    I am working on a motor in an air compressor. The motor has equal amperage on the y starter leads. but when the delta kicks in the amperage on L1 goes from 32amps to 14amps. And the L2 32 to 40amps, L3 32 to 5oamps. I have checked and double checked my wiring for the y-delta start wiring for...

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