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  1. Gizmo1985

    Parallel Generator Grounding

    Here is the problem (NEC 2012): Generator normally operates in parallel with the power grid. Grid is at 12.47 kV with a wye-wye transformer going down to 480V. The customer owns the transformer. The original design had the N & G bonded at the wye wye transformer, the 480V breaker, and at the...

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