压板位置传感器的射频电磁场辐射干扰分析研究

Analysis of RF Electromagnetic Radiation Interference of Pressure Plate Position Sensor

压板位置传感器解决了继电保护及自动装置出口压板位置无法在线监视的难点,但由于压板位置传感器采用了微功率射频通信技术,在运行中会产生一定的电磁场辐射,继电保护及自动装置正常运行是否会受其影响尚未有明确的结论,本文通过理论分析了压板位置传感器的辐射等级和水平,并与相关标准做了比较,最后通过实测分析了其电磁场干扰水平以及对继电保护及自动装置的影响程度。结果表明压板位置传感器不会影响继电保护及自动装置的正常运行,同时能够有效实现压板位置的在线监视。

The pressure plate position sensor solves the problem that the position of the pressure plate at the outlet of relay protection and automatic device can not be monitored online. However, due to the micro power radio frequency communication technology adopted by the pressure plate position sensor, certain electromagnetic field radiation is generated in the operation.Whether the normal operation of the relay protection and automatic device is not clearly concluded. This paper analyzes the pressure drop through theoretical analysis. The radiation level and level of the board position sensor are compared with the relevant standards. Finally, the electromagnetic interference level and its influence on relay protection and automatic device are analyzed through actual measurement. The results show that the pressure plate position sensor affects the normal operation of the relay protection and automatic device, and can effectively realize the on-line monitoring of the pressure plate position.