Overview
GW4 series outdoor exchange of high-pressure isolation switch (Hereinafter referred to as the isolation switch). Applied to a frequency of 60Hz to 40.5, 72.5, 126kv rated voltage of the electricity system, As a non-load-voltage circuit combined with time. One pollution-preventing isolation switch to meet the requirements of users re-dirty areas and can be effective in isolation switch operation of the emerging problem of flashover.The isolation switches and switch attached to the ground, each equipped with an independent actuator, in order to ensure that the isolation switch and switch between the two ground operation in the right order, the bulk of products equipped with a mechanical interlocking device, 35-110KV switch grounding into type l and type ll, 145 and 220kv belong to ll , ll-moving earth switch and thermal stability of the value of the same isolation switch
Operating Conditions
1. Altitude: ≤ 3000 meters
2. The environment temperature: upper limit +40℃, lower limit -35℃
3. Wind speed: < 34m/s
4. Seismic intensity does not exceed 8 degree
5. lcing the thickness of not more than 10mm
6. There is no fire, explosion hazard, serious pollution, Places subject to chemical corrosion and severe vibration.
Technical Data
| Item | Unit | Parameter | |||||||
| Rated voltage | kV | 35 | 63 | ||||||
| The maximum voltage | kV | 40.5 | 72.5 | ||||||
| Rated current | A | 630 | 1250 | 1600
2000 |
630 | 1250 | 1600
2000 |
2500 | |
| Moving dynamic current(peak) | kA | 50 | 80 | 100 | 50 | 80 | 100 | 125 | |
| Heat dynamic current(virtual value) | kA/s | 20/4 | 31.5/4 | 40/2 | 20/4 | 31.5/4 | 40/2 | 50/2 | |
| One minute power frequency withstand voltage | earth | kV | 80 | 140 | |||||
| break | 90 | 160 | |||||||
| Lighting impulse withstand voltage | earth | 185 | 215 | ||||||
| break | 325 | 375 | |||||||
| rated terminal static mechanical load | N | 500 | |||||||
| Weight | Kg | 120 | 145 | 170 | 180 | 200 | 225 | 260 | |
| Item | Unit | Parameter | |||||||||
| Rated voltage | kV | 110 | 145 | 220 | |||||||
| The maximum voltage | kV | 126 | 145 | 252 | |||||||
| Rated current | A | 630 | 1250 | 1600
2000 |
1250 | 1600
2000 |
3150 | 1250 | 1600
2000 2500 |
3150 | |
| Moving dynamic current(peak) | kA | 50 | 80 | 100 | 80 | 100 | 125 | 100 | 125 | ||
| Heat dynamic current(virtual value) | kA/s | 20/4 | 31.5/4 | 40/2 | 31.5/4 | 40/2 | 50/3 | 40/3 | 50/3 | ||
| One minute power frequency withstand voltage | earth | kV | 230 | 275 | 450 | / | |||||
| break | 260 | 315 | 530 | / | |||||||
| Lighting impulse withstand voltage | earth | 550 | 650 | 1050 | / | ||||||
| break | 630 | 750 | 1200 | / | |||||||
| rated terminal static mechanical load | N | 750 | 1000 | / | |||||||
| Weight | Kg | 200 | 230 | 260 | 300 | 320 | 380 | 630~710 | 650~750 | 690~780 | |
Overall and mounting dimensions(mm)
