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GW4-72.5/126/145 outdoor high voltage disconnect switch is used to openand close high voltage circuit in rated voltage 72.5/126/145kV, AC 50/60Hzsystem, the anti-pollution type is especially suitable for serious pollution area. It accords with standards of IEC62271-102: High voltage AC disconnect switch.
Ser.No. | Item | Unit | Technical Data | |||
1 | Rated voltage | kV | 72.5,126,145 | |||
2 | Rated current | A | 630,1250,1600,2000 | |||
3 | Rated frequency | Hz | 50,60 | |||
4 | Rated peak withstand current | kA | 25,31.5,40 | |||
5 | Rated short-time withstand time | s | 4 | |||
6 | Mechanical steady operating times |
| 250,300,350 | |||
7 | Main circuit resistance | μΩ | ≤200 |
| ||
≤150 | ≤175 | |||||
8 | 1min(dry)Power frequency withstand voltage | Between poles and Phase to ground | KV | 160/200 | 650/750 | |
9 | 1min(wet)Power frequency withstand voltage |
|
| |||
10 | Lighting impulse withstand voltage(peak value) | 410 | 750 | |||
11 | Mechanical life | Time | 2000 | |||
GW4-145 High voltage Outdoor disconnect switch isolate switch 132kv 145kv