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  1. sarathi2262

    Acceptable value for earth resistan

    Need some advice on PSM and TSM setting for 2 nos. 10 MVA, 22kV incoming which is stepped down to 6.6kV with 14 outgoing feeders of 2MVA each which are further stepped down to 400 Volts. I need to know the fundamental principle in selecting the PSM and TSM values for the Overcurrent and Earth...

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