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    mikeroma's Avatar
    mikeroma Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Apr 10, 2009, 05:22 PM
    Transformer Taps
    How I can explain what's the purpose of the transformer tap is connected to ground?
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
    Uber Member
    		  
    #2

    Apr 10, 2009, 05:57 PM

    Need some more info:

    Why?

    Center tap?
    Any tap?

    In a full wave rectification scenereo?
    Power distribution?

    Please explain a bit better.
    sathe1963's Avatar
    sathe1963 Posts: 97, Reputation: 4
    Junior Member
    		  
    #3

    Apr 17, 2009, 09:55 PM
    Dear Sir,

    The transformer tap (Star point) is connected to ground for following purposes:

    1. In case of 3 phase neutral unbalance load, unbalance current should not remain circulation in other windings hence to give path to these currents and to maintain smooth supply voltage.

    2. This neutral grounding provides a reference point for detection of earth fault in the system.
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