How Do You Calculate Power and Current in a Three-Phase Wye-Delta System?

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SUMMARY

The discussion focuses on calculating total average, reactive, and apparent power, as well as the power factor in a three-phase Wye-Delta system. Participants emphasize the need to convert 5-ohm resistors and capacitors from delta to wye configurations. The analysis is simplified by treating the balanced system as a single-phase system, with all wye points at zero voltage. Key calculations involve determining phase voltages and line and phase currents based on the provided circuit diagram.

PREREQUISITES
  • Understanding of three-phase electrical systems
  • Knowledge of Wye and Delta configurations
  • Familiarity with power calculations (average, reactive, apparent)
  • Ability to analyze balanced systems
NEXT STEPS
  • Learn how to convert resistors and capacitors between Delta and Wye configurations
  • Study the calculation of phase voltages and currents in three-phase systems
  • Explore the concept of power factor in electrical systems
  • Investigate the use of phasor diagrams in analyzing three-phase circuits
USEFUL FOR

Electrical engineers, students studying power systems, and professionals involved in electrical circuit analysis will benefit from this discussion.

MHR-Love
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1. This is a problem in a 3-phase Wye to Delta/Wye system.



2. The question is how to find the TOTAL average, reactive and apparent power and the power factor of the load in the figure attached? All the information needed is labeled



3. I don't know how to find the phase voltages and the line and phase currents. So Please help me in this
 

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Physics news on Phys.org
Probably homework, however:
Convert 5 ohm resistors in delta to wye.
Convert 5 ohm capacitors in delta to wye.
Balanced system, so all wye points are at zero voltage.
Analyise as one phase system.
 

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