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  1. neduetpk

    Double Busbar Scheme Question

    Thank you.
  2. neduetpk

    Double Busbar Scheme Question

    thanks for the drawing. my drawing is this. and my questions are this system both busbars energized all the time. what is the meaning of main BB and transfer BB and what is the purpose of bus coupler is it always put couple both buses all the time or its open in normal condition ? thanks...
  3. neduetpk

    Double Busbar Scheme Question

    now my question is this system both busbars energized all the time. what is the meaning of main BB and transfer BB and what is the purpose of bus coupler is it always put couple both buses all the time or its open in normal condition ? thanks scheme design attached...
  4. neduetpk

    difference between switchgear and circuit breakers

    what is the difference between switchgear and circuit breakers and is there any difference between outdoor and indoor switchgear and circuit breakers , and how would you differentiate between switch yard and substation and grid station . thanks

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