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Thread: IEEE std Voltage Drop

  1. #11
    Join Date
    Jan 2014
    Location
    New Jersey
    Posts
    5
    I got it! Thanks a lot

    Quote Originally Posted by dkidd View Post
    Definition from Article 100

    Outlet. A point on the wiring system at which current is
    taken to supply utilization equipment.

    Don't confuse outlet with receptacle.

  2. #12
    Join Date
    Dec 2008
    Posts
    453
    Quote Originally Posted by schicco View Post
    Julius
    Just want to check again
    What numbers did you use for the cos(theta) and sin(theta)
    Thanks a lot

    Steve
    The angle theta has to be acos(0.8).I did now the same calculation on the other computer and the VD is close to yours indeed : 1.94943 accurate and 1.948536 approximate. Since I was 100 miles away I don't know what happened. I am sorry.

  3. #13
    Join Date
    Dec 2010
    Posts
    1,268
    Quote Originally Posted by schicco View Post
    Julius
    Just want to check again
    What numbers did you use for the cos(theta) and sin(theta)
    Thanks a lot

    Steve
    Correction to earlier post
    Theta is 36.86989765
    Cos(theta) is .8.
    Sin(theta) is .6
    The more they overthink the plumbing, the easier it is to stop up the drain

  4. #14
    Join Date
    Apr 2013
    Location
    New York
    Posts
    31
    Thanks a lot

    Quote Originally Posted by Julius Right View Post
    The angle theta has to be acos(0.8).I did now the same calculation on the other computer and the VD is close to yours indeed : 1.94943 accurate and 1.948536 approximate. Since I was 100 miles away I don't know what happened. I am sorry.

  5. #15
    Join Date
    Apr 2013
    Location
    New York
    Posts
    31
    Thanks!

    Quote Originally Posted by dkidd View Post
    Correction to earlier post
    Theta is 36.86989765
    Cos(theta) is .8.
    Sin(theta) is .6

  6. #16
    Join Date
    Dec 2008
    Posts
    453
    The angle theta has to be acos(0.8).I did now the same calculation on the other computer and the VD is close to yours indeed : 1.94943 accurate and 1.948536 approximate. Since I was 100 miles away I don't know what happened. I am sorry.
    NEC 2014 art. 695.7 Voltage Drop. A) Starting 15% start. B) Running not more than 5% voltage drop from rated motor voltage at 115% load.

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