Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Question
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Three equal resistors are connected in star configuration. The line voltage is 240V ac rms and the line current is 5 A (rms). The power is supplied by a delta connected generator. a) b) Draw the circuit. Calculate the voltage across each resistor. c) PAS = Rod mean SAs Calculate the current flowing in each resistor. d) The total power dissipated. e) squae Determine an equivalent star network. Delfa
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Transcribed Image Text:Three equal resistors are connected in star configuration. The line voltage is 240V ac rms and the line current is 5 A (rms). The power is supplied by a delta connected generator. a) b) Draw the circuit. Calculate the voltage across each resistor. c) PAS = Rod mean SAs Calculate the current flowing in each resistor. d) The total power dissipated. e) squae Determine an equivalent star network. Delfa
Expert Solution
Check Mark
Step 1

a) can draw the above circuit as

Electrical Engineering homework question answer, step 1, image 1

b) Voltage across each resistor will be same as Phase voltage 

Vph=VL3=2403=138.56V

 

Step 2

c) Current through each resistor will be same as line current in star connection

IR=IL=Iph=5A 

d) Total power dissipation

P=3VLIL=3×240×5=2078.46W

 

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