基于紫外成像的电晕放电检测技术研究  

Study on Corona Discharge Detection Technology Based on UV Imaging

作　　者：谭鹏 李玲 吕雪松 TAN Peng;LI Ling;LV Xuesong(NR Electric Power Electronic Co.,Ltd.,Changzhou 213025,China)

机构地区：[1]常州博瑞电力自动化设备有限公司,江苏常州213025

出　　处：《电工技术》2021年第12期75-77,119,共4页Electric Engineering

摘　　要：运用紫外成像仪对电晕放电进行检测时,由于放电量、检测距离和试验仪器设置等因素均会对局部放电位置的快速定位产生影响,因此在试验室中模拟电晕放电,研究检测距离、增益设置与局部放电量间的关系。试验结果表明,增益设置为140,可在较宽检测距离范围内测得更多“有效”光子平均数;电压较低时,可适当增加观测距离或适当增加试验电压值;电压较高时,在安全距离允许范围内检测距离越近越好。When using an ultraviolet imager to detect corona discharge,the rapid positioning of the partial discharge position will be affected due to factors such as the discharge volume,the detection distance and the setting of the test instrument.Therefore,the corona discharge is simulated in the laboratory to study the relationship between the detection distance,the gain setting and the amount of partial discharge.The test results show that with the gain set to 140,more"effective"photons averages can be measured in a wider detection distance range.When the voltage is low,the observation distance can be appropriately increased or the test voltage value can be appropriately increased.When the voltage is higher,the detection distance is as close as possible within the allowable safety distance.

关 键 词：紫外成像仪 电晕放电 增益 检测距离 

分 类 号：TM930[电气工程—电力电子与电力传动]