500-8067.9 * INSTALLATION AND OPERATING INSTRUCTIONS 8DJH * Revision 03 3
Contents
Safety instructions............................................................................5
1 Signal terms and definitions................................ 5
2 General instructions ............................................ 6
3 Due application.................................................... 7
4 Qualified personnel ............................................. 7
Description.........................................................................................8
5 Features .............................................................. 8
6 Functional modules (selection)...........................10
7 Components.......................................................12
7.1 Three-position switch-disconnector ...................12
7.2 Vacuum circuit-breaker type 2............................18
7.3 Interlocks........................................................... 22
7.4 Cable compartment covers ............................... 23
7.5 HV HRC fuse assembly..................................... 24
7.6 Cable connection............................................... 27
7.7 Current and voltage transformers...................... 31
7.8 Protection and control equipment ..................... 31
7.9 Voltage detecting systems ................................ 31
7.10 Ready-for-service indicator ................................ 35
7.11 Short-circuit/earth-fault indicators...................... 37
7.12 Accessories ....................................................... 39
8 Technical data.................................................... 41
8.1 General technical data....................................... 41
8.2 Three-position switch-disconnector .................. 42
8.3 Three-position disconnector .............................. 43
8.4 Vacuum circuit-breaker...................................... 44
8.5 Classification of 8DJH switchgear according to
IEC/EN 62 271-200 ............................................ 47
8.6 Standards and guidelines .................................. 47
8.7 Switchgear versions - Dimensions
and weights....................................................... 44
8.8 Gas leakage rate................................................ 50
8.9 Dielectric strength and site altitude................... 50
8.10 Selection of HV HRC fuse-links ......................... 52
8.11 Rating plates ..................................................... 59
9 Switchgear maintenance................................... 60
10 End of service life.............................................. 60
Installation.......................................................................................61
11 Preparing installation ......................................... 61
11.1 Packing .............................................................. 61
11.2 Completeness and transport damage................61
11.3 Intermediate storage..........................................62
11.4 Unloading and transport to
the place of installation ...................................... 59
11.5 Checking the ready-for-service indicator ............67
11.6 Preparing the foundation.................................... 68
11.7 Comments on electromagnetic compatibility ....68
12 Switchgear installation .......................................70
12.1 Tools/auxiliary means .........................................70
12.2 Installing the switchgear ....................................70
12.3 Pressure relief options .......................................80
12.4 Switchgear earthing ...........................................81
12.5 Retrofit of motor operating mechanism.............82
13 Electrical connections ........................................83
13.1 Connecting high-voltage cables ......................... 83
13.2 Cable connection with cable-type current
transformers ......................................................93
13.3 Connecting secondary equipment .....................95
13.4 Correcting circuit diagrams ................................ 96
14 Commissioning ..................................................97
14.1 Final tests after installation ................................ 97
14.2 Mechanical and electrical function test..............98
14.3 Preparing the power-frequency voltage test ...... 99
14.4 Instructing the operating personnel ...................99
14.5 Applying operating voltage ................................99
Operation ....................................................................................... 101
15 Indicators and control elements....................... 102
16 Operating
the three-position switch-disconnector.............. 95
16.1 Operations ....................................................... 104
16.2 Protection tripping for
the three-position switch-disconnector with
spring-operated/stored-energy mechanism ....... 97
16.3 Ring-main and circuit-breaker panels:
Operating the three-position switch ..................98
16.4 Operating the transformer feeder .................... 108
17 Operating the vacuum circuit-breaker type 2 ... 112
17.1 Closing the circuit-breaker type 2 "locally"........ 113
17.2 Opening the circuit-breaker type 2 "locally"...... 113
17.3 Charging the spring energy store manually ..... 114
17.4 Closing the three-position disconnector in
the circuit-breaker panel type 2 ....................... 106
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