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High Voltage Engineering
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8 l- k% d" K: Lby Lucas J R 7 R- \2 W7 G* i9 F/ ^# U% `7 ] T
1 \: y0 ~+ ?. [$ ?4 P8 \5 RFirst Produced in Cyclostyled form 1970
* N& @9 _# ?% x2 A: Z7 N[Revised and Reproduced periodically]
/ o2 I& X- {* N% WNew Edition 19950 I' F/ j0 g6 f( e4 `) A1 B
Revised Edition 2001& \* l, O+ {5 ]9 t9 L
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1 BREAKDOWN OF GASEOUS INSULATION / Y% T: J2 q1 |8 B" Q# B8 F: Y( x( C d
2 BREAKDOWN OF LIQUID AND SOLID INSULATION........... ..................................... 22) i, I4 ^# t, t# W' c
3 LIGHTNING PHENOMENA.................................................. .......................................... 34, d/ b' H. ]4 c( R% F7 }
4 HIGH VOLTAGE TRANSIENT ANALYSIS............................................................................................................... 45
* |$ y4 B0 W6 [9 h+ Q9 C6 }5 HIGH VOLTAGE CABLES............................................................................................................................................. 64. v" j8 G$ e. k6 j
6 MEASUREMENT OF HIGH VOLTAGES.................................................................................................................... 91
w B* I, s+ f5 t* Z/ f7 HIGH VOLTAGE GENERATORS FOR TESTING .................................................................................................. 123. B- D" y" p# a, q* ^5 n, u3 q+ Q
8 HIGH VOLTAGE SURGE GENERATORS ................................................................................................................ 132$ [! o, J. s4 n4 Z1 g u+ w/ B, Z
9 HIGH VOLTAGE TESTING.......................................................................................................................................... 148
( X* v+ W0 |7 N) e4 z4 j: |9.0 High Voltage Testing Procedure............................................................................................................................ 148
5 p5 V7 l% e4 m9.1 General tests carried out on High voltage equipment ........................................................................................ 148' ]8 W( B9 W( w* o. Q- o% o
9.2 Testing of solid dielectric materials....................................................................................................................... 151
/ o- i# ^' S# b6 l4 ?) s# _/ {9.3 Impulse Testing......................................................................................................................................................... 153
$ h W. J' {( h$ g/ x9.4 Voltage Distribution in a Transformer Winding.................................................................................................. 155
1 i m; q; r% U) m) x" w9.5 Tests on Insulators.................................................................................................................................................... 158* n3 A" M4 t, o9 R5 Q+ A+ w
9.6 Tests on Transformers ............................................................................................................................................. 160
* k) J8 h$ X2 V* Y3 ^9.7 Tests on Cables.......................................................................................................................................................... 161' ]+ ^9 G' d: K( b" D8 r2 ]4 B
9.7.1 Tests on Pressurised Cables.......................................................................................................................... 162
8 I# f1 p, [: s: p9.8 Tests on High Voltage Bushings............................................................................................................................ 163
0 S, o+ G/ G& m9.9 Tests on Porcelain and toughened glass insulators for overhead power lines............................................... 164
) @4 u! K* o; |( z* P4 v3 U, E10 INSULATION CO-ORDINATION.............................................................................................................................. 166* `8 C% d# W8 D9 p) m6 c; ~
10.0 Insulation Co-ordination......................................................................................................................................... 166
3 ~& ^7 w5 {$ `3 V/ O6 T10.1 Terminology .............................................................................................................................................................. 166
, y# w$ \2 F! e# T# Q10.2 Conventional method of insulation co-ordination .............................................................................................. 1681 q# ^6 w$ \* j& B
10.3 Statistical Method of Insulation Co-ordination .................................................................................................... 169
- T( T f, o% |10.3.1 Evaluation of Risk Factor ............................................................................................................................. 1701 i9 d9 W# T+ @( O! R1 I
10.4 Length of Overhead Shielding Wire ...................................................................................................................... 170
) g7 H# \2 E6 L% \7 m0 f' T10.4.1 Modification of Waveshape by Corona..................................................................................................... 171. x% J! c0 a! T' T# r
10.5 Surge Protection........................................................................................................................................................ 1731 R2 k$ h; f" C9 r
11 HIGH VOLTAGE DIRECT CURRENT TRANSMISSION..................................................................................... 184
5 j0 B& k( v* j& p11.0 Historical Background............................................................................................................................................. 184* D" B3 R' }* Z) {$ o0 q8 ^8 t
11.1 Comparison of a.c and d.c transmission................................................................................................................ 185
% R U# t1 V; Z11.2 Convertor arrangements and operation................................................................................................................ 1909 m; P& G$ J( e+ v7 ~7 }
11.3 Control Characteristics ............................................................................................................................................ 1991 G9 B0 E1 ^* v2 B- x2 d
11.4 Classification of d.c. links........................................................................................................................................ 203
- w U; _' @+ S4 [3 }* ~0 |INDEX......................................................................................................................................................................................... 205 |
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