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  • Users: jwaugh2014
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  1. jwaugh2014

    Overall transformer capacity of a delta tertiary with a 500kVA grounding transformer

    I am working with a utility who has a very unique system. This portion of the system is 21kV. The 21kV apparently comes from the delta tertiary from an 18/24/30 MVA (230/60/21kV) transformer. They pick-up their ground reference from a 3-phase zig-zag 500kVA (21kV) grounding transformer. From...
  2. jwaugh2014

    Padmounted Floating Wye-Delta

    Referring to thread238-431498. Can anyone tell me if their utility has a method of temporarily grounding a 3-phase wye-delta pad-mount transformer other than using an H0 bushing well? Also, I have heard of utilities only offering the 208Y/120 or 480Y/277 secondary variety from their pad-mounted...

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