High Voltage Engineering 0 \5 r9 _: O6 a0 ~9 {, ?! j: b. A/ _! p, G9 ?) F
by Lucas J R ' m* q6 I2 ^' R) g: J$ r4 Q }3 J9 j8 w' {3 k# d
First Produced in Cyclostyled form 1970) u( k1 h1 j+ J1 [4 Z( E F
[Revised and Reproduced periodically]8 l; C6 x5 H& y N, u
New Edition 1995 ]# q- A# `2 |8 ?( ~0 r0 R
Revised Edition 2001& i a0 J9 D( T$ y+ k# Q% ]' z
+ A* B8 f s/ v# l
1 BREAKDOWN OF GASEOUS INSULATION $ d. X: N; a- _( [" Q7 r5 X
2 BREAKDOWN OF LIQUID AND SOLID INSULATION........... ..................................... 22 2 p+ P% R6 I. }4 r3 ]3 LIGHTNING PHENOMENA.................................................. .......................................... 34: j2 e2 f$ e% G3 N* f% F5 d
4 HIGH VOLTAGE TRANSIENT ANALYSIS............................................................................................................... 45" D- v# ~& c. ?, E2 t4 A
5 HIGH VOLTAGE CABLES............................................................................................................................................. 649 x0 w1 }" I: i! M8 r2 N4 r% W
6 MEASUREMENT OF HIGH VOLTAGES.................................................................................................................... 91$ c% W4 U2 D" l& d: M4 C/ }2 s2 S
7 HIGH VOLTAGE GENERATORS FOR TESTING .................................................................................................. 123 ) ^( t; v3 m2 @8 o! I9 W( _5 g8 HIGH VOLTAGE SURGE GENERATORS ................................................................................................................ 132 3 k$ r6 i! h6 _) P5 w9 HIGH VOLTAGE TESTING.......................................................................................................................................... 148 ( v/ M9 ^1 I, h6 ~ a* \9.0 High Voltage Testing Procedure............................................................................................................................ 148 0 o1 }* `6 `, g) i9.1 General tests carried out on High voltage equipment ........................................................................................ 1487 M& ~8 Y( {3 E$ \; _- J
9.2 Testing of solid dielectric materials....................................................................................................................... 151 W. H$ r- Q4 a3 o
9.3 Impulse Testing......................................................................................................................................................... 153 ' X7 h. E9 _; U9 S9.4 Voltage Distribution in a Transformer Winding.................................................................................................. 155 " V- y5 e/ Y1 d- q3 a5 j9.5 Tests on Insulators.................................................................................................................................................... 1589 Z9 l+ \$ T# N h7 D; C; _, t
9.6 Tests on Transformers ............................................................................................................................................. 160 8 X/ z' P+ J- n' P' F' h @9.7 Tests on Cables.......................................................................................................................................................... 161# V) Q* B4 u3 L3 f
9.7.1 Tests on Pressurised Cables.......................................................................................................................... 162 1 O% A3 F; W* R/ B# N: s9 ]9.8 Tests on High Voltage Bushings............................................................................................................................ 163" D; v7 X& L$ Y
9.9 Tests on Porcelain and toughened glass insulators for overhead power lines............................................... 164# Q, O8 ^) o/ R& q' B4 `
10 INSULATION CO-ORDINATION.............................................................................................................................. 166+ ~$ ^/ }- P' B+ m+ d. Q- u! Z$ o
10.0 Insulation Co-ordination......................................................................................................................................... 1666 _) t3 o E& H* ^4 ]$ }; r
10.1 Terminology .............................................................................................................................................................. 166* c: Y2 K- F8 s! u7 U
10.2 Conventional method of insulation co-ordination .............................................................................................. 168 1 K+ V6 [! }/ h3 J. ]9 e( j10.3 Statistical Method of Insulation Co-ordination .................................................................................................... 169 5 Z- t! J. i2 e10.3.1 Evaluation of Risk Factor ............................................................................................................................. 170. ?( U* |8 f. K' V
10.4 Length of Overhead Shielding Wire ...................................................................................................................... 170 , c! u2 n0 p3 ^8 U* x6 P4 y1 N10.4.1 Modification of Waveshape by Corona..................................................................................................... 171) s: z6 u' E% g% T/ d; v& L
10.5 Surge Protection........................................................................................................................................................ 173$ n* j2 y. [. C. l
11 HIGH VOLTAGE DIRECT CURRENT TRANSMISSION..................................................................................... 184+ A6 a$ R4 t% p/ q- d* Z3 i/ T
11.0 Historical Background............................................................................................................................................. 184& H C& @3 h5 q0 f, X o$ ~
11.1 Comparison of a.c and d.c transmission................................................................................................................ 185 E7 L) g6 [( \" s& F
11.2 Convertor arrangements and operation................................................................................................................ 190' p+ s3 T6 o' d: @ L( i* g
11.3 Control Characteristics ............................................................................................................................................ 199) O1 z9 `' G( f8 g" h( \
11.4 Classification of d.c. links........................................................................................................................................ 203 0 ?3 M4 x% ^. T$ e9 \. ?INDEX......................................................................................................................................................................................... 205