Substation battery charger earth point

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    Profile photo of Dwaipayan Bhattacharjee
    Dwaipayan Bhattacharjee
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    Dear all,

    I am currently working in a electrical distribution company and facing a challenge regarding the explanation of DC charger earth fault,in our 33/11 KV substation we have 110 VDC,120 mAH battery charger, the charger make sre predominantly STATCON/AMCON. I never found any earthing point in these types of charger but whenever i measured the positive or negative voltage with respect to earth i found the values sum of which is equals to the voltage across the charger positive and negative terminals. My question is please explain me the points where a battery charger can be earthed, since i have no drawings with me and the makers of chargers stop providing support for these chargers, right now i am help less.

    If my language make you understand my view point, let me know.

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