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  • sunil punjilal bhavsar
    Please Unsubscribe me Thanks Sunil ... [Non-text portions of this message have been removed]
    Message 1 of 1 , Jul 1, 2007
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      Please Unsubscribe me
      Thanks
      Sunil

      On Fri, 01 Jun 2007 viswa j wrote :
      > please tell me
      >
      > 1. what is the purpose of earthing transformer
      >
      > 2. what is the purpose of neutral grounding resistor(NGR) and how to
      > calculate the value of the neutal grounding resisitor(NGR)
      > FOR EXAPLE;
      >
      > HOW TO CALCULATE THE NGR FOR 110/11KV,25MVA TRANSFORMER THE
      > TRANSFORMER IS DELTA-DELTA CONNECTION
      >
      > 3.WHAT IS THE DIFFERENCE BETWEEN STANDBY EARTH FAULT RELAY AND
      > RESTRICTED EARTH FAULT RELAY FOR BOTH RELAYS THE TYPE IS "CAG"
      >
      >
      >
      >
      >
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