Zw7a 40.5 Outdoor High Voltage Vacuum Circuit Breaker
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- Model NO.: ZW7A 40.5
- Operation: Electric Type
- Arc-extinguishing Medium: Oil-immersed Type
- Structure: MCCB
- Type: Circuit Breaker
- Certification: VDE, ISO9001-2000, CE, CB, CCC
- Origin: Zhejiang, China
- Breaking Capacity: High Voltage Circuit Breakers
- Speed: High-Speed Circuit Breaker
- Installation: Fixed
- Poles Number: 3
- Function: Conventional Circuit Breaker
- Specification: IEC: M2-E2-C2
ZW7(A)-40.5 series of outdoor High Voltage Vacuum Circuit Breaker With Central Operating Mechanism are three phase,A.C 50(60) Hz 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.
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
2.Ambient 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%.
3.Earthquake intensity:not exceed 8degrees.
4.Saturated vapour 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.The height above sea level:1000m.
6.Air filthy degree: III degrees.
7.It should be installed in the places without fire,explosion,series fifth,chemical erosion and violent vibration.
ZW7(A)-40. 5 Series is an outdoor high voltage vacuum circuit breaker. It is a kind of outdoor high voltage switch equipment with 50HZ three-phase alternating current and 40. 5KV rated voltage. The inserted spring operation system or electromagnetism operation system can remote control to break and close the brake by electromotion or by hand, it can manually store power on the spot. The design performance accords with gb 1984-89, The national standard of the alternating current high-voltage breaker and meets the standard of international electrician committee for high-voltage alternating current breaker. ZW7-40. 5 Series outdoor high-voltage vacuum circuit breaker is mainly applied to control and protect the outdoor 35KV transmission and transformation power system, Protect the normal operation and short circuit in the city or village distribution power system and industry or mining enterprises. The general configuration of this product is porcelain flask support ;The upper porcelain flask is a vacuum arc-extinguishing chamber, the lower one is for support. It is applied to be used in frequent operation. This product has the advantages of good sealed performance, anti-aging, High-aging, High-voltage resistant, Non-combustion, Non-explosion, Long age limit, Covenience for installation and maintenance.