中国机械工程

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高压断路器自卫延时阀的研究

张建卓1;杜之淳1;王洁1;隋心2   

  1. 1.辽宁工程技术大学,阜新,123000
    2.大连理工大学,大连,116024
  • 出版日期:2016-06-25 发布日期:2016-06-24
  • 基金资助:
    国家自然科学基金资助项目(51574140) 

Study on Self Defense Delay Valve of High Voltage Circuit Breaker

Zhang Jianzhuo1;Du Zhichun1;Wang Jie1;Sui Xin2   

  1. 1.Liaoning Technology University,Fuxin,Liaoning,123000
    2.Dalian University of Technology,Dalian,Liaoning,116024
  • Online:2016-06-25 Published:2016-06-24
  • Supported by:

摘要: 为保证高压输电网的安全稳定运行,高压断路器需要具备自卫延时功能,现有高压断路器操动机构自卫延时是通过辅助开关、时间继电器等方式实现的,存在延时结构复杂、可靠性差等问题,为此,提出了一种基于操动机构自身液压系统的延时机构,通过调整延时阀阀芯运动位移实现延时时间的无级调节。采用优化设计和正交仿真试验的方法对其结构参数进行优化,根据优化结果加工两台试验样机并进行实验研究,实验测得延时时间范围是41.6~59ms,能够满足电网安全运行要求。

关键词: 高压断路器, 自卫能力, 延时阀组, 优化设计, 正交试验

Abstract: In order to ensure the safety and stable operation of high voltage transmission network, the high voltage circuit breaker needed to have the function of self defense delay. The existing high voltage circuit breakers realized this function by the auxiliary switch, time relay and other ways, but it resulted in the problems of structural complexity and low reliability. A new type of self defense delay structure was proposed herein based on the hydraulic system of the operating mechanism, which might adjust the time delay steplessly by adjusting the displacement of the self defense delay valve spool. The optimized design and orthogonal experiments were used to optimize the parameters of the structure. According to the optimized results, two experimental prototypes were processed and the experimental study was carried out. The measured results are in the range of 41.6~59ms, which can meet the requirements of the safe operation of power grid.

Key words: high voltage circuit breaker, self defense ability, timedelay valve group, optimization design, orthogonal experiment

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