Table 3 : General electrical data of type SGF two-column rotary disconnector (standard values)
Rated voltage kV 36 72.5 123 145 170 245 300 362
Rated normal current A 1600 1600 1600 1600 1600 1600 1600 1600
2500 2500 2500 2500 2500 2500 2500 2500
3150 3150 3150 3150 3150 3150 3150 3150
Rated peak - withstand current A 100 100 100 100 100 100/125 100/125 100/125
Rated short time current (1 sec) kA 40 40 40 40 40 40/50 40/50 40/50
Rated Power frequency withstand
voltage (50Hz, 1min)
- against earth & between poles kVp 70 140 230 275 325 460 380 450
- over isolating distance kVp 80 160 265 315 375 530 435 520
Rated Lightening-impulse withstand
voltage 1.2/50ms
- against earth and between poles kVp 170 325 550 650 750 1050 1050 1175
- over isolating distance kVp 195 375 650 750 860 1200
1050 (+170) 1175 (+205)
Rated Switching-impulse withstand
voltage 1.2/50ms
- against earth and between poles kVp - - - - - - 850 950
- over isolating distance kVp - - - - - -
700 (+245) 800 (+295)
Discharge-inception voltage kV >27 >46 >80 >95 >110 >160 >191 >230
Radio-interference voltage kV <500 <500 <500 <500 <1000 <1000 <1000 <2500
(at 23 kV) (at 46 kV) (at 78 kV) (at 92 kV) (at 108 kV) (at 156 kV) (at 191 kV) (at 230 kV)
3-phase switching capacity A 2 2 2 2 2 1.5 1 1
inductive, capacitive
6. Technical Data
6.1 General Electrical Data
Note : The precise electrical data is contained in the data sheets supplied. The data in Table 3 contains
of standard values.
6.2 General Mechanical Data
Note : The precise mechanical data are contained in the data sheets supplied. The data in Table 4
contains of standard values.
Table 4 : General mechanical data of type SGF two-column rotary disconnector (standard values)
Minimum breaking load of support N 4000 6000 8000 100000
instructors
Permissible mechanical terminal load
- Static and dynamic N 3000 4500 6000 6000
- Static portion N 1200 1500 1500 1500
8/113
1HDB 050016-YN-A
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