Q21. A 3-phase, 430V, 60 Hz supply connected to a 3-phase load having Three 10002 non-inductive resistances. i) Calculate real power, reactive power consumed if load is connected in Star. ii) Calculate real power, reactive power consumed if load is connected in Delta.

Q21. A 3-phase, 430V, 60 Hz supply connected to a 3-phase load having Three 10002 non-inductive resistances. i) Calculate real power, reactive power consumed if load is connected in Star. ii) Calculate real power, reactive power consumed if load is connected in Delta.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.31P: Consider two interconnected voltage sources connected by a line of impedance Z=jX, as shown in...

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Question

Q21.
A 3-phase, 430V, 60 Hz supply connected to a 3-phase load having
Three 10002 non-inductive resistances.
i) Calculate real power, reactive power consumed if load is connected in
Star.
ii) Calculate real power, reactive power consumed if load is connected in
Delta.

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Step 1: Define the given data :

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Step 2: Calculation of phase voltage :

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Step 3: Calculation of power factor :

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Step 4: Calculation of active power

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Step 5: Calculation of reactive power :

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Step 6: Part ( ii )

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Step 7: Calculation of active power :

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Step 8: Calculation of reactive power :

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