Audited Supplier
GW1
High-voltage
Three-column Disconnector
Outdoor High-voltage
Electric
Grounding
Horizontal Rotary Type
Three Pole
Electric
ISO
50Hz
12kv
630(1250)a
3000times
50(63)Ka
≥372 (E - Level)mm
DGG
Export Box
China
853530900
Product Description
Photos of Product
General
General
GW1-12 series outdoor high voltage AC disconnector (hereinafter referred to as "disconnector") It is applicable to the device on the outdoor high-voltage distribution equipment line for the replacement of 10kV line under voltage and no load, and for the electrical isolation of the overhauled high-voltage bus, circuit breaker and other electrical equipment from the live high-voltage line. It can also be used to close a small capacitive current and inductive current.
The Isolation switch(disconnector) is a double column vertical opening type, equipped with a manual or electric mechanism, which can realize three-phase linkage.
The Isolation switch meets the technical standards of high voltage AC disconnectors and earthing switches (GB/T 1985-2014) and high voltage AC disconnectors and earthing switches (DL/T 486-2010).
Model And Meaning
Usage Environmental Conditions
- Altitude: no more than 1000m. If the altitude is higher than 1000m, the rated insulation level shall be corrected accordingly.
- Ambient temperature: upper limit + 45 0C, lower limit - 40 0C, average temperature of the hottest month 30 0C, maximum daily temperature difference 25K.
- Solar radiation intensity (outdoor): 0.1W/cm2
- Wind speed / pressure (outdoor): 34m/s / 700Pa
- Pollution level: e-level
- Icing thickness: not more than 20mm
- Humidity: average daily relative humidity, not more than 95%, average monthly relative humidity not more than 80%
- Earthquake resistance: horizontal acceleration 0.3m/2, vertical acceleration 0.15m/s2
- Safety factor: sinusoidal resonance three cycle wave, safety factor above 1.67.
- The utility model has the advantages of simple structure, beautiful appearance, and convenient installation.
- The insulator is designed with high-strength porcelain material and a large climbing distance, which has strong pollution resistance and environmental adaptability and can meet the operation requirements in high-altitude areas.
- The interlocking device can effectively prevent the misoperation of the grounding knife.
- The operation is simple and reliable. Manual or electric operation mechanisms can be selected according to the user's requirements.
| No. | Item | Unit | Data | ||||
| 1 | Rated Frequency | Hz | 50 | ||||
| 2 | Rated Voltage | kV | 12 | ||||
| 3 | Rated Current | A | 630(1250) | ||||
| 4 | Rated Short-time Withstand Current and Duration | Isolation Switch | kA/s | 20/4 | 25/4 | 25/4 | 31.5/4 |
| Earthing Switch | 20/2 | 25/2 | 25/2 | 31.5/2 | |||
| 5 | Rated peak withstand current | kA | 50(63) | ||||
| 6 | Rated short-time power frequency withstand voltage | Interphase, to earth(dry) | kV/min | 42/1 | |||
| Fracture(dry) | 48/1 | ||||||
| Interphase, to earth(wet) | 42/1 | ||||||
| 7 | Rated lightning impulse withstand voltage | Interphase, to earth | kV | 75 | |||
| Fracture | 85 | ||||||
| 8 | Circuit resistance | μΩ | ≤100 | ≤80 | |||
| 9 | Mechanical life | Times | 3000 | ||||
| 10 | Creepage distance | mm | ≥372 (e - Level) | ||||
| Note: If the altitude is over 1000m, the rated insulation level should be modified as appropriate. | |||||||
