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  1. isutechman

    3-phase AC motor efficiency

    Yes it is a synchrous motor.
  2. isutechman

    3-phase AC motor efficiency

    Thanks for the help. I got the PF=1 from the nameplate on the motor, how would I go about calculating the power factor for my load?
  3. isutechman

    3-phase AC motor efficiency

    Ok this may seam like a basic question, but my background is mechanical engineering and I seam to be failing to remember what I learned in EE class. I have a 250 hp motor that is driving an air compressor and it is rated at 440v and 262.5 amps and has a PF 1. I want to find the efficiency of...
  4. isutechman

    Find the cfm of air compressors

    Toothless I wish that was the case, but the company is cheep and about all I get for this study is what ever info I can find about are user side,and supply side and a leake detector! But for a 1st round study that might work out ok here, we think we have about 40% leaks, so just me going...
  5. isutechman

    Find the cfm of air compressors

    jet1749 Thanks for the equation, your problems sounds like the exact issue I'm having. One question about that equation: If I have a two-stage compressor do I do the equation for the 1st and 2nd stage cylinders and then add them together? I ran this for one of our Worthington’s and if I don't...
  6. isutechman

    Find the cfm of air compressors

    Thanks for all the ideas so far, it will be helpful, I called Ingersoll Rand, Sullair, and Gardner-Denver to get info about their compressors. So I hope they will come through with that. I still have 2 Worthington's and 1 Cooper Penjax compressor that I need specs. for, any ideas where to find...
  7. isutechman

    Find the cfm of air compressors

    I'm doing a summer internship this summer, and one of my tasks is to do a compressed air study for the company to determine how much they are losing to leaks. The company I'm working for has very poor records of any of their equipment so the only information I have is what I have been able to...

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