Hi guys ,I need some help on what a suitable grounding system for pump station with two source a delta/wye transformer as main and a standby generator , most of genset in my area is coming with grounded neutral point bonded to the gen body ,and the transformers grounded solidly at wye side, as a common habit we used to use (RH99)relay for residual earthing current protection installed in both MCC and MDB panels ,before writing here I have checked Schneider 143 white paper and ieee green book but I come out with nothing ,
I appreciate if there is any technical analysis for for my case
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