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  • Users: mjv29
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  1. mjv29

    3 PHASE XFMR IMBALANCE CALCULATION

    Hello, I am in search for a calculation (formula) to determine the maximum imbalance of a 3 phase XFMR. for example, 2000 KVA, 277/480 phase a = 480 amps phase b = 490 amps phase c = 470 amps what is the "offical way" to determine the maximum imbalance. Background. I have over 2000...
  2. mjv29

    OIL FILLED CUTOUT

    The OFCO's are GE of several vintages - 1929 to 1990's. Some of the oldest are in perfect condition - the environment the OFCO is in and elements which it is exposed to determine the condition of the unit. I agree the OFCO's are prone to violent failure - however [if] maintained can provide an...
  3. mjv29

    OIL FILLED CUTOUT

    Hello, I am looking for some direction on OIL FILLED CUTOUTS and a maintance plan. SPECS: 4kV, 100 & 200 Amp, Oil Filled, Submersible. Basically, I am trying to develop an inspection program for the OFCO in effort to determine when it should be replaced. I am looking for some criteria on how...

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