| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
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GN22-12 (C) (D) series indoor high-voltage disconnector high-voltage switchgear is used in power systems with rated voltage of 12kV, 50Hz and below, to connect, disconnect or convert lines under voltage but no load.
Structural features
This product is a high-current isolating switch with a three-phase common bottom knife structure. It adopts a mechanical locking prototype with a two-step action of closing and contacting, achieving wear-free contact, small operating force, high contact pressure, and good dynamic thermal stability.
Environmental conditions for use
Ambient air temperature: -15ºC~40ºC, daily average temperature ≤35ºC.
Altitude≤1000m.
Temperature conditions:
Daily average relative humidity ≤95%, daily average water vapor pressure ≤2.2kPa;
Monthly average relative humidity ≤90%, monthly average water vapor pressure ≤1.8kPa.
Earthquake intensity ≤8 degrees.
Places without fire, explosion danger, severe pollution, chemical corrosion and severe vibration.
Note: If the product use conditions exceed the above provisions, the user shall negotiate and determine with the company.
Technical parameters
| Model | Rated voltage | Rated current | 4-second thermal stability current (effective value) kA | Dynamic stability current (peak value) kA |
| GN22-12(C)(D)/2000A | 12 | 2000 | 50 | 100 |
| GN22- 12(C)(D)/2500A | 2500 | 50 | 125 | |
| GN22-12(C)(D)/3150A | 3150 | 50 | 125 | |
| GN22- 12(C)(D)/4000A | 4000 | 50 | 125 | |
| GN22-12(C)(D)/5000A | 5000 | 100 | 250 | |
| GN22- 12(C)(D)/6300A | 6000 | 100 | 250 | |
| GN22- 12(C)(D)/8000A | 8000 | 100 | 250 |
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