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  • Users: mmuel
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  1. mmuel

    Reading manufactures time current curves

    Hello, I am trying to decipher an Eaton/Cutler-Hammer TCC. The drawing number is 70C1034 and it is for a Digitrip 1150 trip unit. The problem I have is a heater shorted out and instead of tripping the 30A MCCB in the unit or the 50A panel MCCB, it tripped the 800A distribution LVPCB. It...
  2. mmuel

    OEL and generator capability curve don't seem to match

    Hello Gentlemen, We have a 50MW gas turbine that is used for peaking and system stability. The problem we are experiencing is when we are exporting VARS (over exciting the generator) we hit the volt/hertz limit (1.05pu) before the generator capability curve indicates we should. Here are the...

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