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  1. dumitruN

    delta service

    With the new service I will have a Y system the existing delta in the building will be part of it. The power company is not involved inside the building. Phase by phase from the new Y to the existing delta you still think it will be created an imbalance? Another question will be: can a...
  2. dumitruN

    delta service

    Thank you very much
  3. dumitruN

    5kv undergrund cable

    Thank you
  4. dumitruN

    delta service

    Can you elaborate why is the primary a delta since I have a Y from the street? Thank you.
  5. dumitruN

    delta service

    Thank you
  6. dumitruN

    delta service

    I have a 400A 120/240V delta service in a building. It feeds 3 phase and single phase panels in the building. I will bring a new 1200A, 120/208V and I wand to feed the existing panels from the new switchgear. Whant kind of transformer do I need to feed the old panels? Thank you.
  7. dumitruN

    5kv undergrund cable

    I have a 4" pvc underground conduit incased in concrete. Can I put in it three triplex 5kv cables (3c):(one #1, one #2 and a #6) going from the switchgear to three diferent transformeers? I don't have a IEEE 835 standard? The NEC tables are limited to 2000V. The power company people are telling...

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