Question one A balanced star connected load comprises of 20 ohm resistance and 0.07 Henry inductance in each branch. If the load supplied with 415V at 50Hz, calculate a) the line current b) the power factor c) the total power supplied to the load PLEASE FOLLOW THIS APPROACH TO SOLVE THE QUESTION. THANK YOU Step One Deduce the inductive reactance. STEP Two Write down a rectangular expression for the impedance per branch. STEP Three Convert the rectangular expression into polar expression. STEP Four Because impedance will be involved in the analysis deduce the phase voltage. STEP Five Solve for the phase current and hence the line current. STEPVSix Use the phase angle of the current to deduce the power factor.  STEP Seven Find the apparent power.

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 2.16P: A single-phase, 120V(rms),60Hz source supplies power to a series R-L circuit consisting of R=10 and...
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Question one
A balanced star connected load comprises of 20 ohm resistance and 0.07 Henry inductance in each branch. If the load supplied with 415V at 50Hz, calculate
a) the line current
b) the power factor
c) the total power supplied to the load

PLEASE FOLLOW THIS APPROACH TO SOLVE THE QUESTION. THANK YOU
Step One
Deduce the inductive reactance.
STEP Two
Write down a rectangular expression for the impedance per branch.
STEP Three
Convert the rectangular expression into polar expression.
STEP Four
Because impedance will be involved in the analysis deduce the phase voltage.
STEP Five
Solve for the phase current and hence the line current.
STEPVSix
Use the phase angle of the current to deduce the power factor.
 STEP Seven
Find the apparent power.

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