Shaanxi Longxiang Electrical Co.,Ltd.
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ZN12-40.5 Series of Indoor HV Vacuum Circuit Breaker

ZN12-40.5 series of indoor HV vacuum circuit breaker is with rated voltage of 40.5kV,three-phase AC 50 (60) Hz indoor HV switch equipment.The structure of this kind of circuit breaker is simple but with strong breaking capability;it is suitable for application in the mining industry
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● General Description
ZN12-40.5 series of indoor HV vacuum circuit breaker is with rated voltage of 40.5kV,three-phase AC 50 (60) Hz indoor HV switch equipment.The structure of this kind of circuit breaker is simple but with strong breaking capability;it is suitable for application in the mining industry,substations and power transmission and distribution systems for controlling and protecting the switch. Especially suitable for the industry which requires frequently operations like metallurgy fields,electric arc steel plant to control and protect the equipment.This kind of vacuum circuit breaker can be assembled with truck which can be suitable for many kinds of switchgear such as JYN1,GBC etc
Structural characteristics:
1.The operating mechanism is introduced the technique of operating mechanism from Siemens 3AF vacuum circuit breaker, the operating mechanism is integrated with vacuum circuit breaker,with characteristics of short transmission 
 
● Applying ambient conditions
1.Ambient temperature:-15℃~+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.
 
● Main Technical Specification
 
Longxiang
Longxiang
 
● Overall outline drawing
 
Longxiang
 
● Following information is required for order
Full type name,rated current,rated short-circuit breaking current,distance between phases.
Rated voltage of CO tripper of operating mechanism.
Rated voltage of energy-stored motor.
Name and quantity of spare parts.
For special requirements,please consult with manufacturer.
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