【摘要】隔离开关是发电厂和变电站中使用最多的一种高压开关电器。本文根据GN30-12型户内高压隔离开关的结构特点,分析了该型号隔离开关在合闸状态下动静触头的受力情况,在电接触理论基础上,研究了触指弹簧压缩量对GN30-12隔离开关接触电阻的影响,对隔离开关的安装调试以及隔离开关触指弹簧的选型具有一定的指导意义。
环保防尘网【关键词】隔离开关;电接触;触指弹簧双模卡;接触电阻
情趣口香糖Abstract:Disconnector is used in power plants and substations up to a H.V. switching equipment. In this paper ,防爆钟the forces of the disconnector contacts in the closing state movement are analyzes based on the structural characteristics of the GN30-12 indoor H.V. disconnector,and the effects of contact compression spring on GN30-12 disconnector contact resistance is researched based on the theory of electrical contact for dealing with disconnector installation.
Keywords:disconnector;electrical contact;contact compression spring;contact resistance
引言
隔离开关又称刀闸,在电力系统中用于断开无负荷电流的电路,使所检修的设备与电源有明显的断开点,以保证检修人员的安全,是高压开关电器中使用最多的一种电器。GN30-12隔离开关广泛应用于变电站切纸刀片>滤菌器10kV开关柜中 [1]。