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  • Users: kzoo
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  1. kzoo

    Line to Line fault upstream of Delta / Wye(Grounded) transformers

    I am looking into an issue where several Delta / Wye(Grounded) transformers where damaged due to a line to line fault upstream from the transformers. The transformers are step downs for businesses. Can someone explain why the primary fault protection fuses would not protect the transformers...

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