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High Voltage Engineering % t( A# w* n* s# ?4 Z
/ x; Z5 s0 Q" E Kby Lucas J R 0 e" }2 K7 c& |% @; t6 v
9 T/ Y0 x! r a7 B8 `First Produced in Cyclostyled form 1970. _& u0 x* o' z9 K9 X
[Revised and Reproduced periodically]
# r4 L# m! \- H/ M& q9 ~New Edition 1995- I$ n1 {2 M2 Z" Q4 ~
Revised Edition 20019 Q6 v% E- M3 N4 j% R- @
3 ?9 L: f; o. G, S; [
1 BREAKDOWN OF GASEOUS INSULATION # [, \% A5 _$ `4 ]! h% l% n/ l9 p
2 BREAKDOWN OF LIQUID AND SOLID INSULATION........... ..................................... 226 f; {. W# E3 _4 A4 M0 }+ U, R T
3 LIGHTNING PHENOMENA.................................................. .......................................... 34/ q! m" S( |+ u7 s: T" x1 z
4 HIGH VOLTAGE TRANSIENT ANALYSIS............................................................................................................... 45 E; k" f: U1 ?4 w; Z$ N
5 HIGH VOLTAGE CABLES............................................................................................................................................. 64
( w. l& q# ^% }: e5 x; j6 MEASUREMENT OF HIGH VOLTAGES.................................................................................................................... 910 i; R B I9 K& @% C
7 HIGH VOLTAGE GENERATORS FOR TESTING .................................................................................................. 1233 I( m$ d2 I9 ^
8 HIGH VOLTAGE SURGE GENERATORS ................................................................................................................ 1327 q" y' M* R; x" Y
9 HIGH VOLTAGE TESTING.......................................................................................................................................... 148, a3 |1 O2 O- s1 N; @
9.0 High Voltage Testing Procedure............................................................................................................................ 148
, a' S$ k# y" h# Y5 t) W. }$ m9.1 General tests carried out on High voltage equipment ........................................................................................ 148
; p- K% j/ M3 K8 n/ x9.2 Testing of solid dielectric materials....................................................................................................................... 1515 Z$ y# N, g8 i: b, W3 N
9.3 Impulse Testing......................................................................................................................................................... 153
w) p$ Y! R6 M; x9 [( `: a9.4 Voltage Distribution in a Transformer Winding.................................................................................................. 1551 O9 F/ \& e* V2 }( g6 T
9.5 Tests on Insulators.................................................................................................................................................... 158
+ j8 ]) {$ c9 h% W9.6 Tests on Transformers ............................................................................................................................................. 160
) K1 \2 G- Q/ U6 Q9.7 Tests on Cables.......................................................................................................................................................... 1618 p4 w M( ^" @
9.7.1 Tests on Pressurised Cables.......................................................................................................................... 162 }4 M* O5 v# S# L4 p
9.8 Tests on High Voltage Bushings............................................................................................................................ 163: O" Q& M. k4 k' Z& b' w
9.9 Tests on Porcelain and toughened glass insulators for overhead power lines............................................... 164" O! G0 O5 f4 f$ K0 f
10 INSULATION CO-ORDINATION.............................................................................................................................. 166 c' W' ]6 \4 T9 `2 f5 A7 y
10.0 Insulation Co-ordination......................................................................................................................................... 166
+ A. T' v/ I5 H2 h, S10.1 Terminology .............................................................................................................................................................. 166
7 k# D7 h* n. c% V7 C! I9 t5 k- k10.2 Conventional method of insulation co-ordination .............................................................................................. 168, [% B( b+ A3 J1 V* i& i1 X; ?
10.3 Statistical Method of Insulation Co-ordination .................................................................................................... 169 x- ^, j6 m9 `; R$ V
10.3.1 Evaluation of Risk Factor ............................................................................................................................. 170
6 s' ~9 g7 l' y( K10.4 Length of Overhead Shielding Wire ...................................................................................................................... 170
9 y: D# \3 i. q! _, A10.4.1 Modification of Waveshape by Corona..................................................................................................... 171
: K# b3 Z& J4 M% x10.5 Surge Protection........................................................................................................................................................ 173
+ X1 Y1 m2 h0 L {11 HIGH VOLTAGE DIRECT CURRENT TRANSMISSION..................................................................................... 184
' Q7 y" [+ C Y11.0 Historical Background............................................................................................................................................. 1843 x$ B# @, K3 W; t. e& [
11.1 Comparison of a.c and d.c transmission................................................................................................................ 185
# V* C/ a5 S; h11.2 Convertor arrangements and operation................................................................................................................ 1906 ~ r; x- |, |0 Y# W( M5 S
11.3 Control Characteristics ............................................................................................................................................ 199
" ?" `8 N# f/ e8 w: x+ c, A+ a11.4 Classification of d.c. links........................................................................................................................................ 203
" [6 V. k9 v& B( o; Q }INDEX......................................................................................................................................................................................... 205 |
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