ZW20 Series Outdoor Vacuum Circuit Breaker
1.This product is flexible and convenient to operate: it can be both electric and manual energy storage.
2.Superior opening performance opening short-circuit current 25KA up to 30 times.
3.Small operating power, high reliability: newly designed miniaturized electric spring mechanism.
4.Flexible installation: can be installed by lifting or sitting on the column 5. Maintenance-free characteristics: circuit breaker main circuit, secondary components, operating mechanism are sealed in SF6 gas (zero gauge pressure), not subject to external environmental influences, stable performance, reliable, maintenance-free; 6.
6.Reliable sealing performance: adopting mature sealing structure technology, reliable sealing.
7.Excellent insulation performance of inlet and outlet lines: the use of silicone rubber casing, good insulation properties
Product Description
ZW20 series outdoor vacuum circuit breaker adopts vacuum extinguisher and SF6 gas as insulation medium, it is the improved product of ZW20 column vacuum circuit breaker. The case adopts the gas sealing, explosion-proof and insulating structure technology of VSP5 introduced from abroad, and the inlet and outlet conduits are also improved in sealing performance, with excellent overall sealing performance. The internal SF6 gas is not leaking and is not affected by the external environment, and the spring-operated mechanism is miniaturized and optimized for reliability and stability, adopting a direct-acting chain main young and a multi-stage release system, which makes the action reliability and stability several times higher than that of the traditional spring-operated mechanism in China: the main circuit has improved several times than the traditional spring-operated mechanism. Domestic traditional spring operating mechanism has improved several times: the contact between the shaft of the main circuit and the set adopts the inner closing and outer tensioning table stall structure, the contact resistance of the main circuit is small and the temperature rise is low. This product is matched with the controller, has excellent recloser function, and can meet the requirements of power distribution automation system.
Product Technical Parameters
Rated voltage: 12KV
Rated current: 630A
Rated short-circuit breaking current: 20KA
Rated short-circuit closing current (peak): 50KA
Rated energy storage motor voltage: AC220V
Application Scenarios
Altitude:not more than 2000m.
Ambient air temperature:-40°C~+40°C.
Daily Temperature Difference:Daily temperature change not more than 25C.
Wind speed:not more than 35m/s.
No flammable, explosive hazards, strong chemical corrosive substances and violent vibration of the place
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