Extra High Voltage AC Transmission Engineering

Extra High Voltage AC Transmission Engineering

eBook - 2006
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About the Book: Modern power transmission is utilizing voltages between 345 kV and 1150 kV, A.C. Distances of transmission and bulk powers handled have increased to such an extent that extra high voltages and ultra high voltages (EHV and UHV) are necessary. The problems encountered with such high voltage transmission lines exposed to nature are electrostatic fields near the lines, audible noise, radio interference, corona losses, carrier and TV interference, high voltage gradients, heavy bundled conductors, control of voltages at power frequency using shunt reactors of the switched type which inject harmonics into the system, switched capacitors, overvoltages caused by lightning and switching operations, long air gaps with weak insulating properties for switching surges, ground-return effects, and many more. The important topic of EHV cable transmission up to 1200 kV is gaining ground with oil-filled, PPLP, XLPE, and SF6 insulation. The book covers all topics that are considered essential for understanding the operation and design of EHV ac overhead lines and Underground cables. Theoretical analyses of all problems combined with practical application are presented in detail. EHV laboratory equipment and testing are fully covered together with application of digital recorders, fibre optics, etc. for impulse measurements. Every chapter contains many worked examples in order to illustrate and reinforce the theory. All examples are taken from practical situations as far as possible. Contents: Introduction to EHV AC Transmission Transmission Line Trends and Preliminaries Calculation of Line and Ground Parameters Voltage Gradients of Conductors Corona Effects-I Power Loss and Audible Noise Corona Effects-II: Radio Interferene Electrostatic Field of EHV Lines Theory of Travelling Waves and Standing Lightning and Lightning Protection Overvoltages in EHV Systems Caused by Switching Operations Insulation Characteristic of Long Air Gaps Power Frequency Voltage Control and Overvoltage EHV Testing and Laboratory Equipment Design of EHV Lines Based upon Steady-State Limit and Transient Overvoltages Extra High Voltage Cable Transmission
Publisher: New Delhi : New Age International (P) Ltd., Publishers, c2006.
Edition: Rev. 3rd ed.
ISBN: 9788122424812
Branch Call Number: ELECTRONIC BOOK
Characteristics: 1 online resource (xvii, 516 p.) : ill.
Additional Contributors: ebrary, Inc


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