Overview
GN19-12 indoor high-voltage isolation switch is a high-voltage switchgear equipment used in power systems with a rated voltage of 12kV, AC 5OHz and below. It is equipped with CS6-1 manual operating mechanism and is used for opening and closing circuits under voltage and no load conditions. There are also derivative products such as anti fouling type, high-altitude type, and equipped with live display devices
Operating Conditions
1. Altitude: ≤ 1000 meters
2. The environment temperature: upper limit +40℃, lower limit -25℃
3. Relative humidity: daily average value is not greater than 95%, monthly average is not greater than 90%;
4. The seismic intensity does not exceed 8 degrees;
5. There is no fire, explosion hazard, serious pollution, Places subject to chemical corrosion and severe vibration.
Model and meaning
Technical Data
| Item | Unit | Parameter | |||
| Rated voltage | kV | 12 | |||
| Rated current | A | 400 | 630 | 1000 | 1250 |
| Rated short time withstand current | kA | 12.5 | 20 | 31.5 | 31.5 |
| Rated short-circuit duration | s | 4 | |||
| Rated peak withstand current | kA | 31.5 | 50 | 80 | 80 |
| Rated lightning impulse withstand voltage (peak) | kV | 75/85 | |||
| 1min power frequency withstand voltage | 42/48 | ||||
Overall and mounting dimensions(mm)
| Model | A | B | C | D |
| GN19-12/400 | 450 | 446 | 185 | 4-14×24 |
| GN19-12/630 | 470 | 446 | 185 | 4-14×24 |
| GN19-12/1000/1250 | 510 | 500 | 196 | 4-18×28 |
| GN19-12C/400 | 420 | 690 | 185 | 4-14×24 |
| GN19-12C/630 | 430 | 690 | 185 | 4-14×24 |
| GN19-12C/1000/1250 | 470 | 745 | 196 | 4-18×28 |
