两种紫外成像仪放电检测影响因素研究

Research on Influencing Factors on Discharge Detection by Two Kinds of Ultraviolet Imagers

紫外成像技术能够检测到电力设备的放电状况,但使用时会受到仪器参数、检测条件等众多因素的影响,这阻碍了紫外检测技术的有效应用。利用棒板电极产生稳定的放电源,研究仪器增益和门槛值、检测距离和角度、风力状态5种因素对2种型号紫外成像仪检测到的紫外光子数的影响,发现了仪器增益、仪器门槛值和检测距离3种因素对紫外光子数的影响规律,检测角度和风力大小的影响可忽略不计。

Ultraviolet（ UV） imaging technology is able to used for detecting discharge conditions of power equipments,but it may be affected by many factors such as instrument parameters,detection conditions,and so on which may impede effective application of UV detection technology. Steady discharge source produced by rod-plate electrode is used for studying five factors influencing UV photon numbers detected by two types of UV imagers including instrument gain value,threshold value,detection distance,detection angle and wind power state. It is discovered influencing laws of three factors including instrument gain value,threshold value and detection distance while influence of detection angle and wind power can be neglected.