Element Name Symbol Ideal Real Primary resistance R1 3.0 Q Secondary resistance R2 0.03 Q Primary leakage reactance X1=wL1 6.5 Q Secondary leakage reactance X2=wL2 0.07 Q Magnetizing reactance Xm=wLm 15 kN 00 Core-loss resistance Rc 100 kQ 00

Element Name Symbol Ideal Real Primary resistance R1 3.0 Q Secondary resistance R2 0.03 Q Primary leakage reactance X1=wL1 6.5 Q Secondary leakage reactance X2=wL2 0.07 Q Magnetizing reactance Xm=wLm 15 kN 00 Core-loss resistance Rc 100 kQ 00

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

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.30P: Reconsider Problem 3.29. If Va,VbandVc are a negative-sequence set, how would the voltage and...

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Concept explainers

DC Generator

An electromechanical machine which converts input mechanical energy to respective output electric energy is called a generator.

Question

A certain residence is supplied with electrical power by the transformer of Table14.1 on page 729. The residence uses 400 kWh of electrical energy per month. From the standpoint of energy efficiency, which of the equivalent circuit elements listed in the table are most significant? You will need to use good judgment and make some assumptions in obtaining an answer.

Element Name
Symbol
Ideal
Real
Primary resistance
R1
3.0 Q
Secondary resistance
R2
0.03 Q
Primary leakage reactance
X1=wL1
6.5 Q
Secondary leakage reactance
X2=wL2
0.07 Q
Magnetizing reactance
Xm=wLm
15 kN
00
Core-loss resistance
Rc
100 kQ
00

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