Overview
ZN85-40.5 series of indoor high voltge vacum circuit breaker (ereinate rferere to as circuit breaker), for tee-phase AC 50Hz, rated votage 40.5kV power system for industrial and mining eterprises, power plants and substations as a division Load crrent ovrload crrent fault crrent The circuit breaker and the operating mechanism adopt the upper and lower rrangement structure, which efectively reduces the depth of the circuit breaker.
The tee-phase itrerupr and the asociatecd charged body are separared by three independent cpoxy insulating see to form acomposite insultin sucture The circuit breaker meets the requirement ofthe air and distace during normal operating conditions and efetivey reduces the The size ofthe circit breaker. The main conductive circit vacum iterupter and dynamic and static conductive cnnectin istallld in the insulation tube, so that the phase spacing of only 300mm. The main circit ectrtcal cnnetion all use fixed conmectin,with high rliabililtl The insulating cylinde is mounted above the circuit breaker frame.
For this new type of circuit breaker designed spificial for the spring operating mechanism, istall in the circuit breaker frame, the structural caracterisics ofthe circuit breaker is more suitable for the upper and lower layout, and become the overal structure ofthe circuit breaker inseparable one sectin The design of the machine is simple, the output curve and its performance are more suitable for the chrarteristics and requirement of 40.5kV vacum circuit breaker.
The overall layout is reasonable beautiful, simple. Small size, flexibl operatin, with rliabl elctrital performance, long life, casy maintenance, maintenance-free features of the organizatin.
The. crit braker for frcqucnt operation and a varicty of ocasions and operating conditins more harsh placs.
