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Electrical Engineering

Lisea Transmisión Linea Transmisión Trasifder Carga a) im Vs b) C)

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

Chapter7: Symmetrical Faults

Section: Chapter Questions

Problem 7.21MCQ

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Concept explainers

Maximum power transfer theorem

A resistive load will consume maximum power from a network when the load resistance is equal to the resistance of the network as viewed from the open-circuit terminals, with all energy sources removed leaving only the internal resistances. Physicist Moritz von Jacobi introduced the maximum power transfer theorem in 1940. Therefore, this theorem is also known as Jacobi's law.

Question

You want to feed a load that works at 100Vrms and consumes 2KVA with a lagging power factor of 0.8. To supply the load, a transformer is required whose equivalent circuit is shown in figure b) and two sections of transmission lines shown in figure c). The general feeding scheme is shown in figure a). Without using the mesh or node methods, determine the power triangle of the power supply.

Linea Transmisión
Lisea Transmisión
Transfder
Carga
ww.
13
www
3.5
b)

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