Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Single Phase AC Circuit
Alternating Current (AC) is a type of electric power in which the electric current changes, both in magnitude and direction, at regular intervals. This AC Circuits can deliver power in either a Single Phase system or a Three Phase system.
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The first picture is the question the second pic i did not understand that step of %75 of the load means what ?
7:41 4 Step2 b) Lse Know tuat The efficiensy of the transfommer x x KVA x ws XI0O x=0.75) kVA - 23 Cos¢= 0-866 4.V Rm.r= (RLv) * Ev 2, Rey. r =Co.o4)X ( 2300) Ru.v=42 Resisteno refessed to primoy side Rp = R,t RH.V Rp = 4+4 Rp=8n Step3 c) ?
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Transcribed Image Text:7:41 4 Step2 b) Lse Know tuat The efficiensy of the transfommer x x KVA x ws XI0O x=0.75) kVA - 23 Cos¢= 0-866 4.V Rm.r= (RLv) * Ev 2, Rey. r =Co.o4)X ( 2300) Ru.v=42 Resisteno refessed to primoy side Rp = R,t RH.V Rp = 4+4 Rp=8n Step3 c) ?
A 23-kVA, 2300/230-V, 60-Hz, step down transformer has the following resistance and leakage- reactance values: R1=40, R2=0.040, X1=120, and X2-0.120. The transformer is operating at 75% of its rated load. If the power factor of the load is 0.866 leading. Determine the efficiency of the transformer.
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Transcribed Image Text:A 23-kVA, 2300/230-V, 60-Hz, step down transformer has the following resistance and leakage- reactance values: R1=40, R2=0.040, X1=120, and X2-0.120. The transformer is operating at 75% of its rated load. If the power factor of the load is 0.866 leading. Determine the efficiency of the transformer.
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