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    macvan's Avatar
    macvan Posts: 1, Reputation: 1
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    #1

    May 21, 2010, 05:00 AM
    Connecting power generator to incoming mains
    I have to install a 100kva generator at an office block. He incoming mains goes through a 150A 3PH isolator. I have 2 150A 3PHcontactors that I need to use as the ATS, which will be installed next to the DB Board and isolator. There are also 3 surge arrestors in the DB board.Where do I interuppt the incoming power before or afer the isolator
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #2

    May 23, 2010, 06:01 AM
    I will assume an "isolator" is nothing more than a disconnect switch of some sort.

    The ATS needs to be downstream of the disconnect.
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