Extra High Voltage AC Transmission Engineering, Third Edition

The book covers all topics considered essential for understanding the operation and design of Extra High Voltage AC (EHV AC) overhead lines and underground cables. EHV laboratory equipment and testing are fully covered together with application of digital recorders, fibre optics, etc. for impulse measurements. Includes theoretical analyses of all problems and many worked examples to clarify various concepts.

Preface to the Third Edition
It is nearly a decade since the publication of the Second Edition of this text-reference book
authored by me and needs a revision. No significant developments have taken place in the
basic theory and principles of e.h.v. transmission engineering, except for increase in
transmission-voltage levels, cables, magnitudes of power-handling capabilities, as well as of
course the cost of equipment and lines.
But two problems that need mentioning are: (1) harmonics injected into the system by
modern extensive use and developments in Static VAR systems which have an effect on control
and communication systems; and (2) effect on human health due to magnetic fields in the
vicinity of the e.h.v. transmission line corridor. The first one of these is a very advanced topic
and cannot be included in a first text on e.h.v. transmission engineering, as well as several
other topics of a research nature fit for graduate-level theses and dissertations. The second
topic is considered important enough from epidemiological point of view to necessitate
elaboration. Thus a new addition has been made to Chapter 7 under the title: Magnetic Field
Effects of E.H.V. Lines.
Since the date of publication of the first edition, the I.E.E.E. in New York has thought it
fit to introduce an additional transactions called I.E.E.E. Transactions on Power Delivery. The
author has expanded the list of references at the end of the text to include titles of significant
technical papers pertaining to transmission practice.
The author wishes to acknowledge the encouragement received from Sri. V.R. Damodaran,
Production Editor, New Age International (P) Ltd., for revising this text-reference book and
preparation of the Third Edition.

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