Description:
The GW□-12/24/40.5-630-20(25) outdoor AC high voltage disconnect switch (disconnect switch for short) is used to open and close circuits with voltage but no load at 50/60 Hz. The 12/24/40.5 kV power system is anti-pollution and can be used in serious pollution areas. Three-pole linkage, good synchronous performance. It accords with the standards of IEC62271-103: High Voltage Switches.
Ambient Conditions:
- Altitude: ≤3000m;
- Ambient temperature:-30℃~+40℃;
- Wind speed:≤35m/s;
- Air pollution: IV;
- Earthquake intensity: ≤8 degree;
- Ice thickness:≤10mm
Products with special requirements, specifications, and dimensions that need to be improved can be designed and manufactured according to user requirements.
Main technical parameters
<tdrowspan=”3″>kV42/4850/6095/115
| No. | Item | Unit | Data | ||||
| 2 | Rated current | A | 630/1000/1250 | ||||
| 3 | Rated power frequency | Hz | 50/60 | ||||
| 4 | Rated peak withstand current | kA | 50/63 | ||||
| 5 | Rated short-time withstand current | kA | 20/25 | ||||
| 6 | Rated short-time withstand current duration | s | 4 | ||||
| 7 | Main loop resistance | μΩ | 12kV≤80 | 24kV≤90 | 40.5kV≤100 | ||
| 8 | 1min(dry)power frequency withstand voltage | phase to phase phase to earth across open contacts |
kV | 42/48 | 50/60 | 95/115 | |
| 9 | 1min(wet)power frequency withstand voltage | 34 | 50 | 85 | |||
| 10 | Lightning impulse voltage (peak value)(peak) | 75/85 | 125/145 | 185/215 | |||
| 11 | Mechanical life | Times | 2000 | ||||
Outline dimension drawing (12KV)
