Ask Me Help Desk

Ask Me Help Desk (https://www.askmehelpdesk.com/forum.php)
-   Electrical & Lighting (https://www.askmehelpdesk.com/forumdisplay.php?f=105)
-   -   Conductor sizing (https://www.askmehelpdesk.com/showthread.php?t=829653)

  • Jan 2, 2017, 11:53 AM
    Thomasmith
    Conductor sizing
    I have a
    600v three phase gen, 60hz, 40kw, 50kva, 8pf
    Class h insulation
    And a
    Three phase transformer
    45kva, 600v primary
    208vy/120v secondary
    4.8 impedance
    Conductor temp at 170 deg.
    Out of the secondary on the transformer I will go to a three phase panel.
    I need to know the conductor size between the gen and the primary of the transformer and between the secondary of the transformer and the panel.
    Also any tips tricks or hints would be greatly appreciated
    All runs are less than 5 feet.
    Thanks in advance
  • Jan 2, 2017, 06:42 PM
    stanfortyman
    Are you seriously asking this question on a Home & Garden message board?
  • Jan 3, 2017, 05:01 AM
    donf
    There is a whole section in the NEC that will tell you how to size transformer conductors.

    Read the Book!!
  • Jan 3, 2017, 11:59 AM
    ma0641
    This is hardly a DIY question! Look online at NEC Section 450 and 455.

  • All times are GMT -7. The time now is 03:19 PM.