From: Bert Hickman
Date: Tue, 22 Oct 2002 20:54:08 -0500
Subject: Re: [TSSP] Top Voltage
Thanks for discovering this, Paul! Poking around a bit more on this site, I found that this is the first chapter in the book, "High Voltage Engineering", a 205 page on-line textbook used for teaching a graduate level Electrical Engineering/Power course at the University of Moratuwain in Sri Lanka. The book was written by the head of their EE department, Dr. J. R. Lucas. It looks like he's quite a prolific author! Some other items of interest can be seen at: http://elect.mrt.ac.lk/pdf_notes.htm http://elect.mrt.ac.lk/pdf_publications.htm Some of the other chapters are also quite interesting. For example, Chapter 6 has a nice discussion on sphere gaps and many other HV measurement techniques: http://elect.mrt.ac.lk/HV_Chap6.pdf Of note - on page 94 in Chapter 6, the author discusses breakdown in asymmetrical gaps (where the "active" terminal is the one with the smaller diameter) as being preferentially from the negative terminal at first for small gaps. However, this characteristic "crosses over" so that breakdown is initiated preferentially from the positive terminal for larger gap spacings due to space charge and streamer effects. The entire book and table of contents can be found at: http://elect.mrt.ac.lk/HV_content.pdf A summary is below: 1 Breakdown of Gaseous Insulation 2 Breakdown of Liquid and Solid Insulation 3 Lightning Phenomena 4 High Voltage Transient Analysis 5 High Voltage Cables 6 Measurement of High Voltage 7 High Voltage Generators for Testing 8 High Voltage Surge Generators 9 High Voltage Testing 10 Insulation Coordination 11 High Voltage Direct Current Transmission Thanks again for finding this online jewel! Best regards, -- Bert -- -- Bert Hickman Stoneridge Engineering "Electromagically" (TM) Shrunken Coins! http://www.teslamania.com Paul wrote: > An interesting read in > > http://elect.mrt.ac.lk/HV_Chap1.pdf > > -- > Paul Nicholson, > -- >
Maintainer Paul Nicholson, paul@abelian.demon.co.uk.