Outdoor Vacuum Circuit Breaker
Product ID: ZW7-40.5 Type
ZW7-40.5 series of outdoor vacuum circuit breakers are three-phase, A.C 50Hz outdoor high voltage distribution equipment with 40.5kv rated voltage, which can be used to open or close loading current, over-loading current and short-circuit current，it is widely used in rural electrical network and comply with GB1984-2003 standard.
- General Description
- The overall structure of this product adopt porcelain insulator support type, the vacuum interrupter is installed inside the upper insulator, the lower insulator is used for support bottle, three phases are amounted on the same mechanism box, the moving end of vacuum interrupter is connected with operating mechanism through shaft and insulation lever. The operation is easy and convenient.
- Applying ambient conditions
- 1.Ambient temperature: -30℃～+40℃；
- 2.The height above sea level: ≤ 1000 m; (Not including special requirements)
- 3. Relative humidity: the average humidity of a day should be no more than 95%. the average humidity of a month should be no more than 90%;
- 4. Saturated vapor pressure: the average pressure of a day should be no more than 2.2kPa; the average pressure of a month should be no more than 1.8Kpa
- 5. Earthquake intensity: not exceed 8 degrees.
- It should be used in the places without fire, explosion, serious filth, chemical erosion and violent vibration.
- Main Technical Specification
- Rated voltage 40.5kV
- Rated frequency 50/60Hz
- Rated current 1250 1600 2000A
- Rated short circuit breaking current 20 25 31.5kA
- Rated short circuit making current 50 63 80kA
- Rated peak withstand current 50 63 80kA
- Rated short time withstand current 20 25 31.5 kA
Main Products:
Vacuum circuit Breaker