Example (2) 720 W and the shunt field coil resistance is 55 2. If it has a F.L. efficiency of 88%, find the armature resistance. Also, find the load current corresponding to maximum efficiency. A shunt generator has a F.L. current of 196 A at 220 V. The stray losses are

Example (2) 720 W and the shunt field coil resistance is 55 2. If it has a F.L. efficiency of 88%, find the armature resistance. Also, find the load current corresponding to maximum efficiency. A shunt generator has a F.L. current of 196 A at 220 V. The stray losses are

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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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.

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Example (2)
720 W and the shunt field coil resistance is 55 2. If it has a F.L. efficiency of 88%, find the armature
resistance. Also, find the load current corresponding to maximum efficiency.
A shunt generator has a F.L. current of 196 A at 220 V. The stray losses are
(Electrical Technology Punjab Univ. Nov. 1988)
220 100
Solution,
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