Industry Standard of Lagging is it positive or negative?
Posted 25 March 2012 - 03:36 AM
Posted 25 March 2012 - 02:22 PM
Posted 25 March 2012 - 05:18 PM
If you know that S = V I* (# of phases)^1/2 and V = I Z you are good for 1/2 of the test. And, always draw it out on paper.
Posted 25 March 2012 - 06:18 PM
The problems #111 is a balanced delta load, sequence ABC and they give you VAB of 12.5kV 0 degrees which is the VLL of the delta load then they give you a line impedance of (5+10j) Ohms/phase and then IaA = 70 angle of -20 degrees. Point "a" and "b" are the ends of the lines that connect to the Delta load at points "A" and "B".
Any guidance or help would be appreciated. Thanks
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