Power System Analysis "This page is Intentionally Left Blank" Power System Analysis Prof. P.S.R. Murthy B.Sc. (Engg.) (Hons.) ME., Dr. - ING (Berlin), F.I.E. (India) Life Member - ISTE (Formerly Principal O.U. College of Engineering & Dean, Faculty of Engineering, O.U. Hyderabad) Principal, Sree Datha Institute of Engineering and Science, Sheriguda, Ibrahim Patnam, Hyderabad (AP). BSP BS Publications 4-4-309, Giriraj Lane, Sultan Bazar, Hyderabad - 500095 A.P. Phone: 040-23445688 Copyright © 2007, by Publisher All rights reserved No part of this book or parts thereof may be reproduced, stored in a retrieval system or transmitted in any language or by any means, electronic, mechanical, photocopying, recording or otherwise without the prior written permission of the publishers. Published by : SSP BS Publications 4-4-309, Giriraj Lane, Sultan Bazar, Hyderabad - 500 095 A. P. Phone: 040-23445688 e-mail: