基于数值模拟的低压馈电开关短路保护

Short Circuit Protection of Low Voltage Feed Switch Based on Numerical Simulation

介绍了一种矿用低压馈电开关保护器,在阐述采样原理时,通过引入傅立叶算法来大大降低电网等外部信号对采样的干扰;同时通过数字电位器技术的应用,达到优化短路判断,使其采样速度更快、保护精度更高。该装置的应用保障了煤矿井下生产区域的用电安全。

One kind of low - voltage feed switch potentiometer is introduced. When elaborates its sampling principle, through introducing the Fourier algorithm to reduce greatly electrical network and so on external signal to sampling disturbance, meanwhile through digital potentiometer technology application, achieves the optimized short circuit judgment, causes the sampling speed to be quicker, the protection precision to be higher. The equipment application safeguarded the coal mine shaft to produce the region to use electricity the security.