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Recent content by acdc

  1. acdc

    Transformer Grounding

    WE HAVE A 15 MVA SUBSTATION , THE PRIMARY VOLTAGE TO THE SUBSTATION IS 115K THE SECONDARY IS 4160. WE HAVE A EXISTING M.C.C. WHICH IS FEED FROM THE SUBSTATION THOUGH A 2000A O.C.B., WE RECEIVE THE 2000A 4160V INTO OUR M.C.C. WE THEN DISTRIBUTE THE 4160 TO SEVERAL MED. VOLTAGE MOTORS AND TWO...
  2. acdc

    Transformer Grounding

    In a 3000 kva transformer 4160/480v , should you bond xo to the transformer equipment ground, which is ground to the power company ground.
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