基于光纤传输的过电压测量装置研究

在过电压测试过程中，过电压的频率比较高。在信号电缆中传输的高频过电压信号受电缆互感的影响，频率越高，衰减越快，导致测量的过电压偏低；同时，受带电距离等安全因素的制约，测试仪器与测量点往往距离较远。文中介绍一种基于光纤传输的过电压测量装置，该装置不存在衰减的影响，对准确测量过电压，确定设备的绝缘配合有着重要的意义。

Study on overvoltage measurement equipment based on optical-fiber transmission

During overvoltage test procedure,the overvoltage frequency is quite high.Subject to electric cable mutual inductance's influence,during high frequency overvoltage signals transmit in the cable,the higher the frequency,the quicker the attenuation.At the same time,the distance between measuring instrument and the measuring point is often far due to safety factor restriction such as the charged distance,etc.Because there is a direct relationship between electric cable's mutual inductance and the signal freque...