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High Voltage Engineering
0 ~2 i% l5 h- }; i' @
( O& j# \+ k: B: T' ?* `by Lucas J R & L6 e0 Q+ p- D/ ^% U* }" P
8 K5 Y) h. l( L+ V$ {
First Produced in Cyclostyled form 1970
+ S) R+ f: Z5 s& W o" l4 y[Revised and Reproduced periodically]
: r9 L, U/ {9 C3 {0 rNew Edition 1995
% R& q5 T0 ?7 F2 u/ l' ^Revised Edition 2001
* Q+ Y) k, x: t$ Y3 K+ S& L5 v% C+ h6 ^6 P- J1 L- p& O
1 BREAKDOWN OF GASEOUS INSULATION
1 r ~7 V% ^/ m4 s2 BREAKDOWN OF LIQUID AND SOLID INSULATION........... ..................................... 22
2 o% U& I0 T) S& q" x: J3 LIGHTNING PHENOMENA.................................................. .......................................... 34# d; X: y9 I# l) y
4 HIGH VOLTAGE TRANSIENT ANALYSIS............................................................................................................... 45* k6 Z3 t A, g9 O
5 HIGH VOLTAGE CABLES............................................................................................................................................. 648 ? l; ]8 H$ H( Z% h. K
6 MEASUREMENT OF HIGH VOLTAGES.................................................................................................................... 91
X. U8 U- O8 m/ Y: ?0 J9 ~* ]7 HIGH VOLTAGE GENERATORS FOR TESTING .................................................................................................. 123
( e6 }/ o& C' i: k" d8 HIGH VOLTAGE SURGE GENERATORS ................................................................................................................ 132
. P7 `/ g8 m0 t; \" x3 Y9 HIGH VOLTAGE TESTING.......................................................................................................................................... 148
6 S. e# M+ V1 r5 Z# r& Z/ g: I9.0 High Voltage Testing Procedure............................................................................................................................ 1485 f8 s) r' Z+ _4 R1 q( f+ G
9.1 General tests carried out on High voltage equipment ........................................................................................ 148- x4 |1 |9 J- c. ?3 X! x
9.2 Testing of solid dielectric materials....................................................................................................................... 151) C. d) g; e6 ?. x
9.3 Impulse Testing......................................................................................................................................................... 153/ e; o0 g" O; O
9.4 Voltage Distribution in a Transformer Winding.................................................................................................. 155
6 I" c0 S4 ^, f9.5 Tests on Insulators.................................................................................................................................................... 158& t3 I: ~$ e1 {. ?3 F) M, i3 e
9.6 Tests on Transformers ............................................................................................................................................. 160
5 V$ ]7 M+ T6 Y, b7 I% c* L S9.7 Tests on Cables.......................................................................................................................................................... 1617 r; i. Q# S7 d6 G' T3 ]7 A
9.7.1 Tests on Pressurised Cables.......................................................................................................................... 162
8 F y a1 ^& k0 `/ e9.8 Tests on High Voltage Bushings............................................................................................................................ 163
5 [4 C: @+ P, g V9.9 Tests on Porcelain and toughened glass insulators for overhead power lines............................................... 164
# x. o8 `& R" X& j0 ~10 INSULATION CO-ORDINATION.............................................................................................................................. 1664 \( G; E7 ]) [. X6 K
10.0 Insulation Co-ordination......................................................................................................................................... 166
1 r) `) a* W) e10.1 Terminology .............................................................................................................................................................. 1667 M8 _ Z% }9 Q( a
10.2 Conventional method of insulation co-ordination .............................................................................................. 168
1 `) }3 \, N( j2 w+ d10.3 Statistical Method of Insulation Co-ordination .................................................................................................... 169
1 p) a5 n6 w/ F* V10.3.1 Evaluation of Risk Factor ............................................................................................................................. 170
3 X1 H: m7 K" G10.4 Length of Overhead Shielding Wire ...................................................................................................................... 170: r: W. |9 D9 ?8 L- w m
10.4.1 Modification of Waveshape by Corona..................................................................................................... 171
; Q c: _, d7 _$ [1 o F5 f$ k10.5 Surge Protection........................................................................................................................................................ 173
$ t [ P3 d9 d/ O& e9 ~* J1 ^( Z11 HIGH VOLTAGE DIRECT CURRENT TRANSMISSION..................................................................................... 184
! K0 T+ q) z& B3 F& @3 O11.0 Historical Background............................................................................................................................................. 184
6 X* F+ V' a/ c2 e4 ?# R+ K11.1 Comparison of a.c and d.c transmission................................................................................................................ 185
7 \7 @ c! O3 B11.2 Convertor arrangements and operation................................................................................................................ 190) @& l& o! @8 b% {
11.3 Control Characteristics ............................................................................................................................................ 1997 K9 P7 p% Z9 b, `- g! Z
11.4 Classification of d.c. links........................................................................................................................................ 203# g$ q2 W4 E4 o& A6 ^0 Y% h8 n& p
INDEX......................................................................................................................................................................................... 205 |
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