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  • Users: bertisevil
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  1. bertisevil

    Delta on a Wye system

    What are the ramifications of connecting a delta transformer to a grounded wye system? Available primary is 12,470 GrdY/7200. The 3 phase padmount is 12,470 delta. Secondary is 120/240 delta with one grounded leg. The voltages are correct and the transformer will work. I am concerned about...
  2. bertisevil

    Shielded Cable versus Concentric Neutral??

    I have run into a situation where a utility had decided some time ago, for whatever reason, to replace there main feeder cables with shielded EPR when they need to be upgraded. Their old standard was concentric neutral cable. For example, a feeder getaway would be upgraded from 750 Al 15kv...

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