Reading & understanding of the control and protection drawings of electrical installations e.g electrical Sub-station / Grid Station

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  • 2011/02/09 at 10:46 am #10381
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    Facing difficulty in reading & understanding the control and protection drawings of electrical installations e.g electrical Sub-station / Grid Station, please advice me how to solve this problem.Thanks

    2011/02/15 at 7:33 pm #11822
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    not easy but a must. whatever u see in control drawing consists of NO , NC, relays,contactors and its ferul no:s. for numbering of relays and contactors see inside the panel where debvice is mounrted. it will be denoted by 86, 74, K55 etc. just see in the dawing and locate where the device is and whatever contacts (N0 or NC) in the drawing will be of opposite status when it is energised.

    2011/04/04 at 6:08 am #11929
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    by knowing internationally accepted standard electrical symbols you can easil read the drawing

    electrical symbol list

    2011/04/10 at 4:10 am #11947
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    instrumentpedia said:

    by knowing internationally accepted standard electrical symbols you can easil read the drawing

    electrical symbol list

    thanks friend. It is a very helpfull to learn about electrical drawings

    2011/05/25 at 5:53 pm #12100
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    this is ok.. but you should have given a updated symbol list..

    2011/09/05 at 2:01 pm #12462
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    ieee is making standard signals?

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