2. A lighting load of 1500 kW and a motor load of 2200 kW at a p.f. of 0-707 lagging is supplied by two alternators running in parallel. One machine supplies 2000 kW at a p.f. of 0-8 lagging. Find the load and p.f. of the second machine. [1700 kW; 0-924 lagging]

2. A lighting load of 1500 kW and a motor load of 2200 kW at a p.f. of 0-707 lagging is supplied by two alternators running in parallel. One machine supplies 2000 kW at a p.f. of 0-8 lagging. Find the load and p.f. of the second machine. [1700 kW; 0-924 lagging]

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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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

2. A lighting load of 1500 kW and a motor load of 2200 kW at a p.f. of 0-707 lagging is supplied by two
alternators running in parallel. One machine supplies 2000 kW at a p.f. of 0-8 lagging. Find the load and
p.f. of the second machine.
[1700 kW; 0-924 lagging]

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