3 Phase Electric Power Question

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SUMMARY

The discussion centers on the behavior of power in a 3-phase electric power system, specifically addressing the misconception that total power remains constant in unbalanced systems. A user initially believed that power should remain constant, but after testing their Mathematica code with equal resistors, they confirmed that balancing the system maintains constant power. The conversation highlights the importance of understanding system balance when analyzing power distribution.

PREREQUISITES
  • Understanding of 3-phase power systems
  • Familiarity with electrical impedance concepts
  • Basic knowledge of Mathematica for simulation
  • Concept of system balance in electrical engineering
NEXT STEPS
  • Research the principles of unbalanced 3-phase systems
  • Learn how to model electrical systems in Mathematica
  • Study the effects of impedance on power distribution
  • Explore methods for balancing 3-phase systems
USEFUL FOR

Electrical engineers, students studying power systems, and anyone involved in the analysis or design of 3-phase electrical systems will benefit from this discussion.

tomizzo
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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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...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...
 
jim hardy said:
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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