会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明专利
    • PUFFER TYPE GAS-BLAST CIRCUIT-BREAKER
    • JPH10269913A
    • 1998-10-09
    • JP7118797
    • 1997-03-25
    • TOSHIBA CORP
    • MORI TADASHIMIZOGUCHI HITOSHISUZUKI KATSUMI
    • H01H33/70H01H33/90H01H33/91
    • PROBLEM TO BE SOLVED: To provide a gas-blast circuit-breaker capable of ensuring insulating performance at a short inter-contact-shoe distance, and reducing the driving energy of the gas-blast circuit-breaker. SOLUTION: This gas-blast circuit-breaker is constituted so that wherein a movable current-carrying contact 6 and an opposite current-carrying contact 10 are oppositely arranged in a vessel filled with an arc-extinguishing gas, and the arc-extinguishing gas in a puffer chamber 3 can be compressed to be led to an insulated nozzle 5, then is sprayed on an arc generated between opposite arc contact 9 and a movable arc contact 1, to extinguish the arc. Insulating performance can be sufficiently retained even an inter-pole distance is shortened, also driving energy too can be reduced; because in this constitution in this case, the contact 9 is arranged on the center axis of the breaker, also a shield electrode 13, having electric potential same as that of the contact shoe 10, is coaxially arranged with the contact 10 (arranged coaxially with the contact shoe 9) between, and the shield electrode 13 can be moved to the contact shoe 6 side together with the movement of the contact 10.