Classification：Isolation switch
Inside Road & Administration Industry & Trading Garden,Houshan Industry Area,Fuzhou City,Fujian Province
0591-22806687 0591-22806697
0591-22806667
FN12-12 and FN12-12R combination electrical appliances are three-phase high-voltage switchgear with rated voltage of 12KV and rated frequency of 50Hz for splitting load current, closed-loop current, no-load transformer and cable charging current, closing short-circuit current, and grounding switch Load switch
It can withstand short-circuit current, and is mainly used in urban substations and industrial electrical equipment with three-phase ring network or terminal power supply for control and short-circuit protection.
| Serial | Project | Unit | FN12-12/125-31.5 | |
| 1 | Rated voltage | kV | 12 | |
| 2 | Rated frequency | Hz | 50 | |
| 3 | Rated current | A | 630 | 100 |
| 4 | Lightning impulse withstand voltage | kV | Ground and interphase 75、isolation 85 | |
| 5 | 1minPower frequency withstand voltage | kV | Ground and interphase 42、isolation 48 | |
| 6 | Rated thermal stable current | kA | 20(4S) | |
| 7 | Rated dynamic current | kA | 50 | |
| 8 | Rated closing current | kA | 50 | |
| 9 | Rated short-circuit breaking current (predicted value) | kA | 31.5 | |
| 10 | Rated transfer current | kA | 125 | |
| 11 | Breaking the capacity of the no-load transformer | kVA | 1250 | |
| 12 | Rated cable charging current | A | 10 | |
| 13 | Rated active load current breaking times | times | 10000 | |
| 14 | The impactor touches the load switch opening time | S | <0.06 | |
| 15 | Grounding switch thermal stability current | kA | 20(2S) | |
| 16 | Grounding switch thermal stability current | kA | 50 | |
| 17 | Operating current voltage | V | AC and DC 110、220 | |
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0591-22806687 0591-22806697
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0591-22806667
Inside Road & Administration Industry & Trading 
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