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Thread: 480 to 600 Transformer help - for testing a system

  1. #31
    Join Date
    Dec 2016
    Location
    pittsburgh, pa
    Posts
    50
    Hammond power has found me a Y075PKCN3L0U (LINK) in stock.

    It looks like what i need but i was unsure of whether or not I'd want to order the 'Neutral Kit' for it?

    I've attached the schematics for the system that this transformer would be powering (just the 480VAC portion)

    _XFMR help.pdf


    the Hammond Power rep that I'm talking to is not really willing to give me any guidance...

  2. #32
    Join Date
    Apr 2006
    Location
    Springfield, MA, USA
    Posts
    3,017
    The Y075PKCN3L0U doesn't get connected to the neutral, and your load doesn't require a neutral.

    You bring three phases 480V plus egc (PE in your drawing) to this transformer, and three phases 600V plus egc to your load.

    -Jon

  3. #33
    Join Date
    Dec 2016
    Location
    pittsburgh, pa
    Posts
    50
    Quote Originally Posted by winnie View Post
    The Y075PKCN3L0U doesn't get connected to the neutral, and your load doesn't require a neutral.

    You bring three phases 480V plus egc (PE in your drawing) to this transformer, and three phases 600V plus egc to your load.

    -Jon
    thank you!, just wanted to verify...

    are there typically lugs in these big transformers for the EGC's to land?

  4. #34
    Join Date
    Nov 2007
    Posts
    805
    Quote Originally Posted by emiller233 View Post
    thank you!, just wanted to verify...

    are there typically lugs in these big transformers for the EGC's to land?
    IMO, 75kVA is not that big. I think the 480V side lines will be no more than #AWG 2, iirc.

  5. #35
    Join Date
    Feb 2012
    Location
    United States
    Posts
    588
    Typical egc lugs? Yes.

    Sent from my SM-G900V using Tapatalk

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