电气寿命试验监测方法研究及其保护装置的设计

Research on monitoring method of electrical life test and design of its protection device

断路器产品进行电气寿命试验时,对试验过程缺少有效的监测方法,如果试验过程发生故障,对试验系统缺少有效的保护装置。因此文章提出一种电气寿命试验监测方法,并设计一套监测保护装置。归纳总结试验参数的特点,建立故障模型;设计硬件电路和软件程序,制作监测保护装置的样机;选择某型号低压交流断路器进行电气寿命试验,通过模拟故障的发生验证该装置的有效性。研究结果表明,该装置准确监测到故障的发生并自动采取了保护措施,保证了试验系统的安全。该方法和装置还可以应用在与电气寿命试验相类似的试验中,解决其缺少监测保护的问题。

There is a lack of effective monitoring method for electrical life test of circuit breaker products during experimental process.If the test process fails,there is no effective protection device for the test system.Therefore,an electrical life test monitoring method was proposed,and a set of monitoring and protection device was designed.Firstly,the characteristics of test parameters were summarized and some fault models were established.And then,the hardware circuit and software program were designed to make a prototype of monitoring and protection device.Finally,a certain type of low-voltage AC circuit breaker was selected for electrical life test,and the simulated failures were applied to verify the effectiveness of device.The research results show that the device accurately detects the occurrence of faults and automatically takes protective measures to ensure the safety of test system.The method and device can also be applied in similar tests of electrical life test to solve the problem of lack of monitoring and protection.