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Zn85 Series Indoor Vacuum Circuit Breaker

Product Description

ZN85 Series Inoor Vacuum circuit breaker
Description
ZN85-40.5/T2000-31.5  type indoor high voltage vacuum circuit breaker for three-phase AC 50Hz, 40.5kv power system, for  industrial and mining enterprises, power plants and substations as the division and load current, overload current fault current perposes, and occasions for frequent operation. The circuit breaker arrangement with upper and lower structure, effectively reduce the depth of circuit b,reakers. And the use of composite structure, three-phase interrupter and associated charged body by the three independent phase separation of epoxy resin insulation casing, using a composite structure, the circuit breaker to meet the air under normal  operating conditions from the required distance and climb and effectively reduce the size of circuit breakers, electrical circuit interrupter, a leading and dynamic and static conductive connection installed in the insulating tube, so that the distance only 300mm. All main circuit electrical connection fixed to connect with high reliability.
Parameters

Technical Information
Techinical Specification       
Rated voltageKV   40.5 
Rated short circuit breaking capacity 4sec.KA25 31.5 2531.5
Rated currentA 1250 16002000
2500
Rated power frequencyHz   50/60 
Power frequency withstand voltage 50Hz 1 min,:KV   95 
Imulse withstand voltage 1.2/50μs:KV   185 
Peak withstand currentKA Peak.6380  63 
Making capacityKA6380  63 
Operation sequencetimes/h  0-0.3-CO-180S-CO 
Mechanism endurancecycles   10000 

Overall and installation dimensions
Zn85 Series Indoor Vacuum Circuit Breaker



 

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