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High Voltage Engineering ; ?4 O; r# z" `0 L4 _6 ?
; f1 ?/ T3 F; \
by Lucas J R 2 K* Z K$ p- n
6 m& z; i5 @* B) _First Produced in Cyclostyled form 1970# q( P6 s4 y* f) U! w
[Revised and Reproduced periodically]/ u3 v9 i$ v9 }5 {' D5 X$ R; V
New Edition 19955 Y! k/ z7 p/ x
Revised Edition 2001* b3 W: G, B* b5 U0 r' g
7 z8 H2 R4 v5 c( g) T1 BREAKDOWN OF GASEOUS INSULATION ; _3 I; J% C$ j' H4 Y
2 BREAKDOWN OF LIQUID AND SOLID INSULATION........... ..................................... 22
' H' F2 f$ D8 j. ?( I+ X# x% s9 D3 LIGHTNING PHENOMENA.................................................. .......................................... 34
. y$ @2 U8 m; A4 M4 HIGH VOLTAGE TRANSIENT ANALYSIS............................................................................................................... 45. A1 q* g9 l2 \: ^
5 HIGH VOLTAGE CABLES............................................................................................................................................. 644 C7 `) Q/ h/ c" B8 Y5 B K6 \* D
6 MEASUREMENT OF HIGH VOLTAGES.................................................................................................................... 917 _, X# m% y: j5 b$ h
7 HIGH VOLTAGE GENERATORS FOR TESTING .................................................................................................. 1236 T8 D% M- ^! I
8 HIGH VOLTAGE SURGE GENERATORS ................................................................................................................ 1324 v/ Y7 U5 j) j0 U9 Z, {0 [
9 HIGH VOLTAGE TESTING.......................................................................................................................................... 148
2 g. B' O7 S( N) \/ r+ [$ g0 K7 G9.0 High Voltage Testing Procedure............................................................................................................................ 148
5 C# ~$ F, e0 b4 e9.1 General tests carried out on High voltage equipment ........................................................................................ 1484 Y1 k4 T% d- }; F5 a7 K
9.2 Testing of solid dielectric materials....................................................................................................................... 151' s* Z; j/ `0 c& u$ @3 k2 X) h
9.3 Impulse Testing......................................................................................................................................................... 153
& Q9 Y+ P. `+ [" w9.4 Voltage Distribution in a Transformer Winding.................................................................................................. 155
8 g6 S. [0 r: O3 s9.5 Tests on Insulators.................................................................................................................................................... 158! @( h: n* k6 j; Y2 ^
9.6 Tests on Transformers ............................................................................................................................................. 1609 [) ^- M$ G7 G% O- S
9.7 Tests on Cables.......................................................................................................................................................... 161
5 a+ M. g, p. p" j% @9.7.1 Tests on Pressurised Cables.......................................................................................................................... 162
( w& x7 G7 w' |* L1 R9.8 Tests on High Voltage Bushings............................................................................................................................ 163: S/ q o" p8 ?) ?
9.9 Tests on Porcelain and toughened glass insulators for overhead power lines............................................... 164
. y& S5 d, o, b( W10 INSULATION CO-ORDINATION.............................................................................................................................. 166$ o0 q% O3 Y2 N E% W( l* X
10.0 Insulation Co-ordination......................................................................................................................................... 166
5 |4 n6 k: u( ]' [10.1 Terminology .............................................................................................................................................................. 166* [& f4 j9 _2 s. `. ?2 B: G( E0 X
10.2 Conventional method of insulation co-ordination .............................................................................................. 168
8 B3 \1 ?3 L* p0 C6 ~10.3 Statistical Method of Insulation Co-ordination .................................................................................................... 169! U/ B9 s3 ~; y6 J$ e5 K
10.3.1 Evaluation of Risk Factor ............................................................................................................................. 170
0 m7 W/ R" f& f5 c6 M- N8 s% U10.4 Length of Overhead Shielding Wire ...................................................................................................................... 170
+ N6 \2 Z2 V/ H2 R10.4.1 Modification of Waveshape by Corona..................................................................................................... 1718 ]3 d& d, O* _7 N
10.5 Surge Protection........................................................................................................................................................ 173& S: E' |8 f3 M; M
11 HIGH VOLTAGE DIRECT CURRENT TRANSMISSION..................................................................................... 1847 \; D# [& D) z1 l7 O& i
11.0 Historical Background............................................................................................................................................. 184
/ e; e" r2 w9 J11.1 Comparison of a.c and d.c transmission................................................................................................................ 185
" y O; Q! {8 r! j+ T: `9 d11.2 Convertor arrangements and operation................................................................................................................ 190, N1 w; i# e' q3 r" k- A x3 R
11.3 Control Characteristics ............................................................................................................................................ 199
. u Y2 O( } |/ e: u11.4 Classification of d.c. links........................................................................................................................................ 203
1 ?. _8 |0 ^0 b6 [, g9 }, A" ]2 E7 t) [INDEX......................................................................................................................................................................................... 205 |
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