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  1. Nurples

    Electric Motor turns slow under or will not start under load

    Update: I've wired the compressor into a 30KW generator and everything seems to work normally. Only issue now is that when the compressor starts up, it sometimes trips the "Short Circuit" fault, which turns off the power. We can manually override this each time, it's just a pain. Thanks to...
  2. Nurples

    Electric Motor turns slow under or will not start under load

    I want to say it has 6 leads, but I can't remember off hand. I'll go take a look in a bit and reply with an exact count for you. I know the motor is dual voltage, but if it was wired for 460V, what would the effect be during normal operation if it was only getting 208V? Would it run slower...
  3. Nurples

    Electric Motor turns slow under or will not start under load

    Thanks for all the information guys... I've worked on the system and it does have an unloader and it does work. When the pump runs, it builds up the air pressure to 175lbs and then shuts down and you hear the air coming out of the unloader. The problem seems to be that the generator doesn't...
  4. Nurples

    Electric Motor turns slow under or will not start under load

    waross -- Yes, I may be stating the voltage wrong. I'd have to look at the generator in order to tell (it's located down the road). I do in fact know it say 208V and when testing the lugs as stated above, I get around 110~120V from L1,L2,L3 to L0 and get 208V +/- when going from L1~L2~L3...
  5. Nurples

    Electric Motor turns slow under or will not start under load

    Compositepro -- As far as the unloading valves, I don't hear it releasing any air when it kicks off. I'll have to check into this. rbulsara -- This is where it's a little confusing to me. The power from any of the lugs (L1, L2, L3) to Netural (L0) is 110V (+/- a few volts depending on what we...
  6. Nurples

    Electric Motor turns slow under or will not start under load

    Hello, I'm currently deployed to Iraq with the US Army and I'm working on hooking up an air compressor. I am not an electrician, but I have a little knowledge. Here are the specifications: Brand: Speedaire Model: 1WD76 49CFM @ 175 PSI 15HP 208-230V/460 65A/60HZ/3PH Pump speed: 1035...

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