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
    • 8. 发明授权
    • Overvoltage surge arrester with improved voltage grading circuit
    • 具有改进电压分级电路的过压浪涌电抗器
    • US3859569A
    • 1975-01-07
    • US43365674
    • 1974-01-16
    • GEN ELECTRIC
    • KRESGE JAMES S
    • H01T4/16H01T4/20H02H9/06
    • H01T4/20H01C7/12
    • An overvoltage surge arrester for relatively high voltage applications is provided with a voltage grading circuit comprising a relatively low exponent resistor in parallel with a relatively high exponent resistor, for preventing spurious operation of the arrester under conditions in which the outside surface of the porcelain housing becomes contaminated with a conductive film. A linear resistor is additionally connected in series with the high exponent non-linear resistor of the above circuit to prevent excessively high current in the high exponent resistor near the sparkover voltage of the arrester.
    • 具有相对高电压应用的过电压避雷器具有电压分级电路,该电压分级电路包括与较高指数电阻并联的相对较低的指数电阻器,用于防止在陶瓷外壳的外表面成为的条件下避雷器的虚假操作 被导电膜污染。 线性电阻器还与上述电路的高指数非线性电阻串联连接,以防止在避雷器的火花放电电压附近的高指数电阻中的过大的电流。
    • 10. 发明授权
    • Discharge arc control means for a lightning arrester
    • 放电雷达控制装置
    • US3566201A
    • 1971-02-23
    • US3566201D
    • 1969-03-03
    • GEN ELECTRIC
    • SAKSHAUG EUGENE CKRESGE JAMES S
    • H01T1/02H02H9/06
    • H01T1/02
    • A surge voltage arrester having means for retarding the build up of appreciable current limiting voltage therein for a predetermined interval of time after sparkover of the arrester comprising, a current limiting spark gap assembly having an electromagnetic coil electrically connected in series with it and disposed adjacent to it for moving arcs within the assembly in a manner such that arc voltage is increased. The coil is shunted by a current limiting means and is provided with enough turns to give it a substantial inductance so that an overvoltage surge may be discharged through the assembly for a predetermined interval of time before the coil develops enough magnetic flux to move arcs within the assembly sufficiently to build up an appreciable current limiting arc voltage. Additionally, the highly inductive coil provides the arrester with a high inductive reactance such that at the moment of clearing the current is forced slowly to zero providing a ''''gentle'''' clearing so high induced voltages are not produced in inductive protected circuits.