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Thread: fault level

  1. #1
    Join Date
    Oct 2007
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    fault level

    anyone know the calculation to work out what the fault level (short circuit current) is 5 metres away from a 40 kva 400 volt 3 phase generator if i am using a 16 mm x 4 core ecc cable.

    40 kva
    400 volts
    58 amps
    generator impedance unknown

    i dont want the answer i want the formula and what the impedance of the 40 kva generator.

  2. #2
    Diamond Member AndyD's Avatar
    Join Date
    Jan 2010
    Cape Town
    Thanked 805 Times in 641 Posts
    Are you going to work it out from test readings or from manufacturers published figures?
    I am special and so is Vanash.

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