FIRST MULTICOLOUR EDITION
A TEXTBOOK OF
ELECTRICAL
TECHNOLOGY
VOLUME I
BASIC ELECTRICAL ENGINEERING
IN
S.I. SYSTEM OF UNITS
,
, A TEXTBOOK OF
ELECTRICAL
TECHNOLOGY
VOLUME I
BASIC ELECTRICAL ENGINEERING
IN
S.I. SYSTEM OF UNITS
(Including rationalized M.K.S.A. System)
For the Examinations of B.E. (Common Course to All Branches), B.Tech.,
B.Sc. (Engg), Sec. A & B of AMIE(I), A.M.I.E.E. (London), I.E.R.E. (London),
Grade I.E.T.E., Diploma and other Competitive Examinations
B.L. THERAJA
A.K. THERAJA
Revised by :
S.G. TARNEKAR
B.E. (Hons), M.Tech., (El. Machines)
Ph.D. (Electrical Power Systems)
Former Professor & Head, Electrical Engineering Department
Visvesvaraya National Institute of Technology, Nagpur
S. CHAND
AN ISO 9001 : 2000 COMPANY
2005
S. CHAND & COMPANY LTD.
RAM NAGAR, NEW DELHI-110 055
, S. CHAND & COMPANY LTD.
(An ISO 9001 : 2000 Company)
Head Office : 7361, RAM NAGAR, NEW DELHI - 110 055
Phones : 23672080-81-82; Fax : 91-11-23677446
Shop at: schandgroup.com
E-mail:
Branches :
z 1st Floor, Heritage, Near Gujarat Vidhyapeeth, Ashram Road, Ahmedabad-380 014.
Ph. 7541965, 7542369
z No. 6, Ahuja Chambers, 1st Cross, Kumara Krupa Road, Bangalore-560 001. Ph : 2268048, 2354008
z 152, Anna Salai, Chennai-600 002. Ph : 8460026
z S.C.O. 6, 7 & 8, Sector 9D, Chandigarh-160017, Ph-749376, 749377
z 1st Floor, Bhartia Tower, Badambadi, Cuttack-753 009, Ph-2332580; 2332581
z 1st Floor, 52-A, Rajpur Road, Dehradun-248 011. Ph : 2740889, 2740861
z Pan Bazar, Guwahati-781 001. Ph : 2522155
z Sultan Bazar, Hyderabad-500 195. Ph : 24651135, 4744815
z Mai Hiran Gate, Jalandhar - 144008 . Ph. 2401630
z 613-7, M.G. Road, Ernakulam, Kochi-682 035. Ph :381740
z 285/J, Bipin Bihari Ganguli Street, Kolkata-700 012. Ph : 22367459, 22373914
z Mahabeer Market, 25 Gwynne Road, Aminabad, Lucknow-226 018. Ph : 2226801, 2284815
z Blackie House, 103/5, Walchand Hirachand Marg , Opp. G.P.O., Mumbai-400 001.
Ph : 22690881, 22610885
z 3, Gandhi Sagar East, Nagpur-440 002. Ph : 2723901
z 104, Citicentre Ashok, Govind Mitra Road, Patna-800 004. Ph : 2671366, 2302100
Marketing Offices :
z 238-A, M.P. Nagar, Zone 1, Bhopal - 462 011
z A-14, Janta Store Shopping Complex, University Marg, Bapu Nagar, Jaipur - 302 015,
Phone : 0141-2709153
© Copyright Reserved
All rights reserved. No part of this publication may be reproduced, stored in a retrieval
system or transmitted, in any form or by any means, electronic, mechanical, photocopying,
recording or otherwise, without the prior permission of the Publisher.
First Edition 1959
Subsequent Editions and Reprint 1960, 61, 62, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73 (Twice), 74, 75, 76, 77,
78, 79, 80, 81, 82, 83, 84 (Twice), 85, 86, 87, 88 (Twice), 89, 91, 93, 94, 95, 96, 97, 98 (Twice), 99, 2000,
2001, 2002 Thoroughly Revised Twenty-third Edition 2002
Reprint 2003, 2004
First Multicolour Edition 2005
Other Parts Available
Volume II : AC & DC Machines
Volume III : Transmission, Distribution & Utilization
Volume IV : Electronic Devices & Circuits
Combined Edition Also Available
ISBN : 81-219-2440-5
PRINTED IN INDIA
By Rajendra Ravindra Printers (Pvt.) Ltd., 7361, Ram Nagar, New Delhi-110 055
and published by S. Chand & Company Ltd., 7361, Ram Nagar, New Delhi-110 055.
A TEXTBOOK OF
ELECTRICAL
TECHNOLOGY
VOLUME I
BASIC ELECTRICAL ENGINEERING
IN
S.I. SYSTEM OF UNITS
,
, A TEXTBOOK OF
ELECTRICAL
TECHNOLOGY
VOLUME I
BASIC ELECTRICAL ENGINEERING
IN
S.I. SYSTEM OF UNITS
(Including rationalized M.K.S.A. System)
For the Examinations of B.E. (Common Course to All Branches), B.Tech.,
B.Sc. (Engg), Sec. A & B of AMIE(I), A.M.I.E.E. (London), I.E.R.E. (London),
Grade I.E.T.E., Diploma and other Competitive Examinations
B.L. THERAJA
A.K. THERAJA
Revised by :
S.G. TARNEKAR
B.E. (Hons), M.Tech., (El. Machines)
Ph.D. (Electrical Power Systems)
Former Professor & Head, Electrical Engineering Department
Visvesvaraya National Institute of Technology, Nagpur
S. CHAND
AN ISO 9001 : 2000 COMPANY
2005
S. CHAND & COMPANY LTD.
RAM NAGAR, NEW DELHI-110 055
, S. CHAND & COMPANY LTD.
(An ISO 9001 : 2000 Company)
Head Office : 7361, RAM NAGAR, NEW DELHI - 110 055
Phones : 23672080-81-82; Fax : 91-11-23677446
Shop at: schandgroup.com
E-mail:
Branches :
z 1st Floor, Heritage, Near Gujarat Vidhyapeeth, Ashram Road, Ahmedabad-380 014.
Ph. 7541965, 7542369
z No. 6, Ahuja Chambers, 1st Cross, Kumara Krupa Road, Bangalore-560 001. Ph : 2268048, 2354008
z 152, Anna Salai, Chennai-600 002. Ph : 8460026
z S.C.O. 6, 7 & 8, Sector 9D, Chandigarh-160017, Ph-749376, 749377
z 1st Floor, Bhartia Tower, Badambadi, Cuttack-753 009, Ph-2332580; 2332581
z 1st Floor, 52-A, Rajpur Road, Dehradun-248 011. Ph : 2740889, 2740861
z Pan Bazar, Guwahati-781 001. Ph : 2522155
z Sultan Bazar, Hyderabad-500 195. Ph : 24651135, 4744815
z Mai Hiran Gate, Jalandhar - 144008 . Ph. 2401630
z 613-7, M.G. Road, Ernakulam, Kochi-682 035. Ph :381740
z 285/J, Bipin Bihari Ganguli Street, Kolkata-700 012. Ph : 22367459, 22373914
z Mahabeer Market, 25 Gwynne Road, Aminabad, Lucknow-226 018. Ph : 2226801, 2284815
z Blackie House, 103/5, Walchand Hirachand Marg , Opp. G.P.O., Mumbai-400 001.
Ph : 22690881, 22610885
z 3, Gandhi Sagar East, Nagpur-440 002. Ph : 2723901
z 104, Citicentre Ashok, Govind Mitra Road, Patna-800 004. Ph : 2671366, 2302100
Marketing Offices :
z 238-A, M.P. Nagar, Zone 1, Bhopal - 462 011
z A-14, Janta Store Shopping Complex, University Marg, Bapu Nagar, Jaipur - 302 015,
Phone : 0141-2709153
© Copyright Reserved
All rights reserved. No part of this publication may be reproduced, stored in a retrieval
system or transmitted, in any form or by any means, electronic, mechanical, photocopying,
recording or otherwise, without the prior permission of the Publisher.
First Edition 1959
Subsequent Editions and Reprint 1960, 61, 62, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73 (Twice), 74, 75, 76, 77,
78, 79, 80, 81, 82, 83, 84 (Twice), 85, 86, 87, 88 (Twice), 89, 91, 93, 94, 95, 96, 97, 98 (Twice), 99, 2000,
2001, 2002 Thoroughly Revised Twenty-third Edition 2002
Reprint 2003, 2004
First Multicolour Edition 2005
Other Parts Available
Volume II : AC & DC Machines
Volume III : Transmission, Distribution & Utilization
Volume IV : Electronic Devices & Circuits
Combined Edition Also Available
ISBN : 81-219-2440-5
PRINTED IN INDIA
By Rajendra Ravindra Printers (Pvt.) Ltd., 7361, Ram Nagar, New Delhi-110 055
and published by S. Chand & Company Ltd., 7361, Ram Nagar, New Delhi-110 055.
