The document discusses the advantages of the CONNEX plug-in connection system for high-voltage systems. It notes that simple on-site installation and pre-assembled, factory-tested components save money and provide safety. Plug-in connectors make opening cable terminations and costly gas or oil work unnecessary. The system allows for flexible configurations and minimizes installation errors.

1. 36 www.pfisterer.com
The

2. advantages

3. of

4. the

5. CONNEX

6. system

7. come

8. to

9. the

10. fore

11. in

12. particular

13. in

14. the

15. area

16. of

17. high-­

18.
voltage

19. systems:

20. simple

21. on-­site

22. installation

23. and

24. factory-­tested

25. components

26. save

27. money

28.
and

29. provide

30. additional

31. safety.

32. Plug-­in

33. HV-­CONNEX

34. systems

35. make

36. costly

37. oil

38. and

39. gas

40. work

41.
during

42. the

43. installation

44. and

45. commissioning

46. of

47. transformers

48. and

49. gas-­insulated

50. switchgear

52.
a

53. thing

54. of

55. the

56. past.

57. Thanks

58. to

59. their

60. plug-­in

61. connectors,

62. cable

63. joints

64. from

65. the

66. HV-­CONNEX

67.
range

68. are

69. much

70. more

71. flexible

72. than

73. traditional

74. solutions

75. when

76. it

77. comes

78. to

79. building

80. and

81.
converting

82. electrical

83. systems.

84. Needless

85. to

86. say,

87. the

88. range

89. includes

90. all

91. the

92. connection

93. com-­

94.
ponents

95. needed

96. to

97. test

98. the

99. system

100. and

101. the

102. attached

103. equipment.
A Bushing
1

104. female

105. contact

106. part
2

107. insulating

108. bushing
3

109. housing

111.
B Contact system
4

112. contact

113. ring

114.
5

115. tension

116. cone

117.
6

118. thrust

119. piece
C Insulating and field-control part

120.
D Housing
7

121. pressure

122. sleeve
8

123. pressure

124. spring
9

125. bell

126. flange
10

127. gasket

128.
11

129. threaded

130. counter

131. ring

132.
12

133. heat-­shrink
13

134. cable

135. screen
Advantages
■ approx.

136. 50 %

137. shorter

138. mounting

139. length

140. compared

141. with

142. conventional

143. systems

146. in

147. accordance

148. with

149. IEC60859

150. and

151. IEC62271-­209
■ no

152. opening

153. of

154. the

155. cable

156. termination

157. and

158. associated

159. costly

160. gas

161. or

162. oil

163. work
■ horizontal,

164. vertical

165. and

166. angled

167. versions

168. for

169. connection

170. to

171. GIS

172. and

173. transformers
■ considerably

174. reduced

175. installation

176. times

177.
■ the

178. use

179. of

180. pre-­assembled

181. and

182. tested

183. components

184. means

185. maximum

186. safety

189. and

190. efficiency
■ installation

191. errors

192. are

193. minimised
■ if

194. a

195. fault

196. does

197. arise,

198. rapid

199. separation

200. of

201. cable

202. and

203. equipment
HV-CONNEX 72.5 kV – 245 kV
A B C D
1 2 3 4 5 6 7
9 10 11 12 13
Sample

204. drawing:

205. Cable

206. connecting

207. System

208. Size

209. 5-­S
HV-CONNEXPluggableConnectionSystem
III
HV-CONNEX Pluggable Connection System
8

210. 37www.pfisterer.com
HV-­CONNEX

211. bushings

212. require

213. less

214. space

215. than

216. conventional

217.
type

218. connectors.

219. All

220. well-­known

221. manufacturers

222. have

223. since

224.
begun

225. to

226. offer

227. equipment

228. which

229. exploits

230. this

231. advantage.

232. An

233.
extension

234. adapter

235. for

236. conventional

237. cable

238. connector

239. modules

240.
is

241. required

242. when

243. HV-­

244. CONNEX

245. is

246. used

247. with

248. traditional

249. GIS

250.
equipment.

251.
The

252. installation

253. of

254. two

255. connectors

256. on

257. the

258. equipment

259. makes

260. it

261.
possible

262. to

263. have

264. one

265. cable

266. connector

267. on

268. the

269. side,

270. facing

271. down.

272.
If

273. it

274. is

275. necessary

276. to

277. connect

278. this

279. kind

280. of

281. transformer

282. using

283. an

284.
overhead

285. line,

286. an

287. HV-­CONNEX

288. plug-­in

289. insulator

290. for

291. overhead

292.
lines

293. can

294. be

295. installed

296. and

297. the

298. downward

299. facing

300. cable

301. connector

302.
then

303. terminated

304. with

305. a

306. dummy

307. connector.

308. This

309. plug-­in

310. insulator

311.
also

312. makes

313. it

314. very

315. easy

316. to

317. carry

318. out

319. simple

320. voltage

321. tests

322. on

323. trans-­

324.
formers

325. fitted

326. with

327. HV-­CONNEX

328. equipment

329. connectors,

330. either

331. in

332.
the

333. factory

334. or

335. on

336. site.
The

337. HV-­CONNEX

338. cable

339. connection

340. system

341. means

342. plug-­in

343. joint

344. bo-­
xes

345. for

346. various

347. geometric

348. configurations

349. can

350. be

351. assembled

352. using

353.
fewer

354. components.

355. The

356. advantage

357. of

358. these

359. joint

360. boxes

361. is

362. that

363. the

364.
joint

365. body

366. is

367. a

368. single

369. unit

370. which

371. is

372. completely

373. manufactured

374. and

375.
tested

376. at

377. the

378. factory.

379. Solutions

380. of

381. this

382. kind

383. bring

384. enormous

385. be-­
nefits

386. if,

387. for

388. example,

389. cables

390. need

391. to

392. be

393. bent

394. back

395. multiple

396. times

397.
during

398. the

399. installation

400. and

401. conversion

402. phase.

403.
GIS Equipment
Transformers
Plug-in Joint Boxes
III
HV-CONNEXPluggableConnectionSystem
HV-CONNEX Pluggable Connection System

404. 38 www.pfisterer.com
HV-CONNEX Seperable Connector Size 4 - 6-S
Technical

405. Data

406. and

407. Size

408. Classification

409. List
*)

410. Packing

411. Unit

412. =

413. 1

414. piece
Size 4 5-­S 6 6-­S
Max. operating voltage Um
(kV) 72.5 145 170 245
Nominal current IN
(A) 2500 2500 2500 2500
Cross section range (mm2
) 95

415. -­

416. 1600 95

417. -­

418. 1600 240

419. -­

420. 2000 240

421. -­

422. 2000
Minimum conductor
diameter
Ø (mm) 9.3 9.3 15.3 15.3
Max. conductor diameter Ø (mm) 50.4 50.4 58.4 58.4
Min. diameter over
insulation
Ø (mm) 33.0 36.0 53.0 53.0
Max. diameter over
insulation
Ø (mm) 71.0 76.0 110.0 110.0
Gross weight
per packing unit*)
(kg) 18.5 22.0 27.0 27.0
Rated power frequency
withstand voltage
1min (kV) 140 275 325 460
Partial discharge 2 x U0
(pC) ≤

423. 2 ≤

424. 2 ≤

425. 2 ≤

426. 2
Rated lightning impulse
withstand voltage (BIL)
(kV) 325 650 750 1050
DC voltage test 15 min 6 x U0
(kV) 144 304 348 508
Rated short-time withstand
current
0,5 s (kA) 63 63 63 63
Rated short-time withstand
current
1 s (kA) 50 50 50 50
Rated impulse current (kA) 160 160 160 160
HV-CONNEX Pluggable Connection System
HV-CONNEXPluggableConnectionSystem
III