中压开关设备的凝露试验方法  

Condensation Test Method for Medium Voltage Switchgear

作　　者：李华良 庞明明 赵磊 尚迪 崔春荣 LI Hua-liang;PANG Ming-ming;ZHAO Lei;SHANG Di;CUI Chun-rong(China Qiyuan Engineering Corporation,Xi'an 710018,China)

机构地区：[1]中国启源工程设计研究院有限公司,陕西西安710018

出　　处：《电工电气》2022年第1期59-65,共7页Electrotechnics Electric

摘　　要：凝露是导致中压开关设备异常放电,造成供电中断的重要诱因之一。为验证开关设备在凝露工况下的绝缘和抗腐蚀性能,GB/T 3906—2020和DL/T 593—2016分别给出了相应的试验程序、试验方法和判断准则,重点对二者的试验程序和试验方法的异同点进行了对比分析,计算了主要试验设备参数并对试验中的难点问题进行了剖析,可供相关试验技术人员参考。One of the important causes of abnormal discharge of medium voltage switchgear and interruption of power supply is conden-sation.The corresponding test procedures,test methods,and the exact criteria are given in GB/T 3906—2020 and DL/T 593—2016.Both of standards could be used to verify the insulation and anti-corrosion performance of switchgear under condensation conditions.This research compared and analyzed the similarities and differences between the two standards.In addition,this paper calculated the main parameters of the test equipment and analyzed the problems of the experiment.The results can provide a reference to relevant test technicians.

关 键 词：凝露试验 开关设备 电导率 人工气候环境箱 试验程序 

分 类 号：TM591[电气工程—电器]