一种新型抗干扰高压隔离开关的设计

Design of a New Type of Anti-interference High Voltage Disconnector

针对户外高压隔离开关常受到外界环境等外力的作用而造成合闸失败的问题,设计了一种新型抗干扰高压隔离开关。首先通过对传统的三柱水平旋转式高压隔离开关的结构组成和工作原理进行分析,得出了造成高压隔离开关合闸过程中导电杆提前翻转的原因。然后结合槽轮间隙机构和四连杆阻尼机构的运动特点,给出了抗干扰隔离开关的设计方案与三维几何模型的建立。最后通过数值仿真对四连杆阻尼机构中弹簧的安装位置进行了确定,并验证了设计目标要求。结果表明:该结构可以有效解决传统高压开关导电杆受外力的干扰,可为隔离开关结构的优化设计提供参考依据。

In view of frequent failure of closing operation of outdoor HV disconnector due to the action of such external forces as external environment,a kind of new type of anti-interference high voltage disconnector is designed.Firstly,through the analysis of the structure and working principle of the traditional three column horizontal rotating high voltage disconnector,the reason for the early rolling over of the conductive rod during the closing operation of the high-voltage disconnector is obtained.Then,the design scheme of the anti-interference disconnector and the set up of the three-dimensional geometric model are given in combination with the motion characteristics of the sheave clearance mechanism and the four linkage damping mechanism.Finally,the installation position of the spring in the four linkage damping mechanism is determined by numerical simulation,and the design target requirements are verified.The results show that the structure can effectively solve the interference of external force on the conductive rod of traditional high voltage disconnector,and can provide a reference evidence for the optimal design of structure of disconnector.