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  • Users: electengr
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  1. electengr

    Acceptable value for earth resistan

    As per our standard each Earth pit resistance should not be more than 5 ohm & Earth grid Earth resistance should not exceed 1 ohm
  2. electengr

    Bus differential protection

    Hi, Happy new year to all. bus differential is used in 11kv in-door metal-clad Switch gears as well.the philosophy is:sum of all in-coming current should be eqal the sum of all out-going currents in a substation with multi incoming feeders & many outgoing feeders in different section. sould...

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