High Voltage Engineering 8 g7 Q. G' v" D* ]2 X. g: w7 w4 I1 `9 ^6 ]8 ?- [( S# t2 C* Y6 E5 b
by Lucas J R # }0 m$ S' B( n7 g
7 U' E* H) y6 ^9 x' r I7 M
First Produced in Cyclostyled form 1970. B! Q0 H+ K) y8 |" ^
[Revised and Reproduced periodically]7 c, N* M# j3 w4 y& ^' \2 N }
New Edition 19954 [2 l% Z# C: N: k! Y* _& p4 b% y, S h
Revised Edition 20016 J; |# n% T& M n, H7 x0 y
4 Y- f) A" J9 ^- B, S, b D
1 BREAKDOWN OF GASEOUS INSULATION 6 P) a7 d, o7 g. [- @% i
2 BREAKDOWN OF LIQUID AND SOLID INSULATION........... ..................................... 22% F l2 \. P/ m! @, d$ @% [
3 LIGHTNING PHENOMENA.................................................. .......................................... 34 0 p- l+ Q% S* f7 {2 `4 HIGH VOLTAGE TRANSIENT ANALYSIS............................................................................................................... 45" _5 w0 }! ]; A4 l. ?* T( y% f1 O
5 HIGH VOLTAGE CABLES............................................................................................................................................. 64 9 f. n% _8 W! o' m+ i6 MEASUREMENT OF HIGH VOLTAGES.................................................................................................................... 91% I* i' f$ Y8 c" R* u
7 HIGH VOLTAGE GENERATORS FOR TESTING .................................................................................................. 1230 T" y6 k$ d. i
8 HIGH VOLTAGE SURGE GENERATORS ................................................................................................................ 1326 A4 U g) w: u
9 HIGH VOLTAGE TESTING.......................................................................................................................................... 1486 k/ D$ g* H- e
9.0 High Voltage Testing Procedure............................................................................................................................ 148 8 g2 s( X4 h3 H5 R0 @7 ^3 ~- i9 |9.1 General tests carried out on High voltage equipment ........................................................................................ 1484 K, Z; R* @3 C! S. d7 x5 v/ i+ E
9.2 Testing of solid dielectric materials....................................................................................................................... 151 B" z" d8 Y* f* a- W4 q9.3 Impulse Testing......................................................................................................................................................... 1538 ]& t0 {. Z9 ^, t. _( x
9.4 Voltage Distribution in a Transformer Winding.................................................................................................. 155( k% Z, n1 \3 T: ?2 }/ x- V/ S
9.5 Tests on Insulators.................................................................................................................................................... 158 # A& n' ^4 A: ~6 t2 b( `! a9.6 Tests on Transformers ............................................................................................................................................. 160" {7 R1 l( {# d t! x/ N
9.7 Tests on Cables.......................................................................................................................................................... 161 * R. ^+ V n6 N6 H. t* v+ N9.7.1 Tests on Pressurised Cables.......................................................................................................................... 1624 V( K% j1 H- n* O, f
9.8 Tests on High Voltage Bushings............................................................................................................................ 1632 E R1 ^1 ^. |' q& b: N
9.9 Tests on Porcelain and toughened glass insulators for overhead power lines............................................... 164' G/ E, N' g) @- g3 C6 \3 ?' s1 [0 X
10 INSULATION CO-ORDINATION.............................................................................................................................. 166# ~ _3 t3 {, V2 M1 D4 }
10.0 Insulation Co-ordination......................................................................................................................................... 166& T5 D; T m; ]$ }
10.1 Terminology .............................................................................................................................................................. 166$ t6 ?1 r; T, D- P1 y9 O/ M6 q( Q; M
10.2 Conventional method of insulation co-ordination .............................................................................................. 168 - `0 _ T( k- k5 E8 _& e0 ~' x10.3 Statistical Method of Insulation Co-ordination .................................................................................................... 169- H! G ]. i* L9 ]* K2 f4 m3 [
10.3.1 Evaluation of Risk Factor ............................................................................................................................. 170 " O1 j [% p; Q3 q10.4 Length of Overhead Shielding Wire ...................................................................................................................... 170$ H" T# h- N, w0 u8 q% s" D
10.4.1 Modification of Waveshape by Corona..................................................................................................... 171+ {# S6 \) P) p0 C2 L i
10.5 Surge Protection........................................................................................................................................................ 1737 E2 F3 v, }; w/ p, T) S
11 HIGH VOLTAGE DIRECT CURRENT TRANSMISSION..................................................................................... 1848 k) E# w( B# p
11.0 Historical Background............................................................................................................................................. 1849 d1 o( Y1 G8 S/ v- j: d0 F
11.1 Comparison of a.c and d.c transmission................................................................................................................ 185 Y* q% Z \5 L, s- D5 I' S% f# l11.2 Convertor arrangements and operation................................................................................................................ 190/ t& v5 t& J( n* d" s
11.3 Control Characteristics ............................................................................................................................................ 199* ~+ F9 T* |% Z" r. B
11.4 Classification of d.c. links........................................................................................................................................ 2038 ~# u, `! ^* r+ w j
INDEX......................................................................................................................................................................................... 205
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