Eaton SVS/12, User Manual

Page: 5 / 138

SVS/12
994.530 G01 02 5
4.2.5 Operation of disconnector, 1250 A panels ............................................................. 89
4.2.6 Voltage indication and phase comparison, 630 A and 1250 A panels ..................... 92
4.2.7 Padlock interlocks, 630 A and 1250 A panels ........................................................ 92
4.2.8 Self-resetting indicators, 630 A panels .................................................................. 95
4.2.9 Cable side voltage transformers ............................................................................ 96
4.2.10 Opening and closing the 600 mm high instrument compartment ............................ 98
4.3 Earthing of cables ............................................................................................... 99
4.3.1 Earthing of the cable via the load-break switch or circuit-breaker, 630 A and 1250 A
panels ................................................................................................................... 99
4.3.2 Earthing the cable of a 12 - 24 kV load-break switch/fuse panel, 630 A ............... 100
4.3.3 Earthing the cable of a 12 kV load-break switch/fuse panel, 630 A ...................... 102
4.3.4 Three-pole short-circuit-proof back-up earth, 630 A and 1250 A panels ............... 104
4.3.5 Single-pole short-circuit-proof back-up earth, 630 A and 1250 A panels .............. 106
4.3.6 Replacing high-voltage fuses .............................................................................. 109
4.4 Metering and voltage testing ............................................................................ 111
4.4.1 Testing the cable via the 17.5 kV cable terminal block, 630 A and 1250 A panels 111
4.4.2 Testing the cable using right-angle plugs, 630 A and 1250 A panels ................... 112
5. SYSTEM COMMISIONING AND DECOMMISIONING ........................ 113
5.1 Commissioning ................................................................................................. 113
5.1.1 Preparation and checking .................................................................................... 113
5.2 Decommissioning ............................................................................................. 114
5.2.1 Dismantling ......................................................................................................... 114
5.2.2 disposal .............................................................................................................. 114
6. SYSTEM INSPECTION, MAINTENANCE AND REPAIR .................... 115
6.1 Inspection and maintenance ............................................................................ 115
6.1.1 Maintenance intervals, 630 A and 1250 A panels ................................................ 115
6.1.2 Checking and maintenance of the mechanism, 630 A and 1250 A panels ............ 115
6.1.3 Topping up grease-filled cable boxes, 630 A panels ............................................ 118
6.1.4 Cleaning the installation ...................................................................................... 118
6.1.5 Changing the bottom contacts in the 24 kV fuse holder of a load-break switch/fuse
panel, 630 A........................................................................................................ 119
6.2 Repair ................................................................................................................ 122
7. ACCESSORIES ................................................................................... 123
7.1 List of available accessories ............................................................................ 123
8. GLOSSARY ......................................................................................... 130
8.1 Safety and qualification of personnel .............................................................. 130
8.2 Abnormal Operating conditions ....................................................................... 131
8.3 Equipment and the area surrounding it ........................................................... 131
9. APPENDIX ........................................................................................... 132
9.1 General .............................................................................................................. 132
9.2 Voltage detecting system Wega 1.2 ................................................................. 133
9.3 Phase monitor Orion 3.0 ................................................................................... 137