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3 Phase Electric Power Question

by tomizzo
Tags: electric, phase, power
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tomizzo
#1
Feb22-13, 05:50 PM
P: 70
I have a question and am wondering if reddit can help. In a 3 phase power system, the overall total power is meant to remain constant. Now, I understand that the individual powers are meant to vary, but as a system, it is supposed to be a constant. If you could take a look at this "code" if you wish that I've created in Mathematica, it is apparent that the power is time varying. I must be doing something wrong, any help?

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jim hardy
#2
Feb22-13, 05:58 PM
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....but as a system, it is supposed to be a constant.
Are you sure that statement is true for unbalanced system?

I know nothing of 'Mathematica" , but suggest you test your code by setting all three resistors equal...
tomizzo
#3
Feb22-13, 06:09 PM
P: 70
Quote Quote by jim hardy View Post
Are you sure that statement is true for unbalanced system?

I know nothing of 'Mathematica" , but suggest you test your code by setting all three resistors equal...
I see. You sir are correct. I completely forgot about the fact that three different line impedances would put the system out of balance. I set the impedance values to be equal and of course, the power remained constant.

Thanks a lot Jim!


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