【摘要】 在线监测高压设备的绝缘状况时 ,存在着各种各样的干扰。以集中式在线监测系统为例 ,影响监测结果的多种因素 ,包括传感器的角误差、信号的传输方式、PT角差、环境温度和湿度、并列设备的相间干扰及A/D转换时采样位数与采样速率等。需要针对不同的影响因素进行深入的分析 ,并提出相应的解决方法更多还原

【Abstract】 In the process of on-line monitor of HV apparatus insulation there exist v arious kinds of disturbance. Taking the on-line monitor system in a central mode as an example the factors effecting on the monitored results include the follow ing: angle error of the sensor, transmission method of the signal, angle error o f PT, temperature and humidity of environment, interference between phases of th e apparatus stand side by side and sampling bits and rate during A/D transfer, e tc.. Pointing to individual different effecting factor, the corresponding soluti on has been put forward.更多还原