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  1. EricMc

    Operator proofing a motor test panel

    I haven't seen 575V applied to a 110V motor either. I'll give the workers a little credit. We use two power cords for testing. Three wire SO cord for single phase and a 4 wire for 3 phase. Usually the wiring might have two of nine motor wires swapped. They get confused sometimes with the 230V...
  2. EricMc

    Operator proofing a motor test panel

    It would be great if there was more accountability and training for production workers and their supervisors. I think they still look at it as if a fuse blows there must have been something wrong with the fuse. No matter how many times I tell them different. Another problem I have is, I'm the...
  3. EricMc

    Operator proofing a motor test panel

    Thanks for the comment. A couple of operators prewire the motors. They wire 2' long SO cords to the motor and strip back the other end. When the motor is installed into the leveler by a different operator, that operator hooks up a power cord from the test panel via insulated alligator clips and...
  4. EricMc

    Operator proofing a motor test panel

    How would I set up a circuit diagnostic? The operators wire the motors (i.e. 1-line, 2-line, 3-line, 4-7, 5-8, 6-9). The operators aren't smart enough to do this. Let alone any other wiring. Time is also a restriction. We build dock levelers. We operate the levelers before they ship. What could...
  5. EricMc

    Operator proofing a motor test panel

    Thanks aolalde. Do you know where I can find a good cheap breaker for a 1HP motor? I can get a Square D one for $400. I know it can pay for itself in 6 months, but I might have a problem justifying five of them for one panel to my boss.
  6. EricMc

    Operator proofing a motor test panel

    The product we build uses hydraulic motors. They can range from 110VAC, 220VAC single and 3 phase, 480VAC, and 575VAC, depending on the customer. We test these motors on a test panel with a selector switch for the different voltages. They are all 1HP motors. Each voltage has a motor starter and...

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