摘要
介绍电缆带电检测技术原理,针对一起由带电检测实际应用发现的缺陷,验证了局部放电测试的有效性和判断结果的正确性。案例分析表明,局部放电带电检测设备能够检测运行电缆中存在的放电缺陷,是一种有效的检出手段。在输电电缆的运行维护中普及局部放电带电检测,能够通过大数据分析,及时了解电缆运行状态,并发现运行电缆数据的异常变动,有利于缺陷的及时消除并降低电缆故障率。
Power cable partial discharge detection technology has become an indispensable technical means for cable equipment operation and maintenance.In this paper,through the introduction of the principle of the cable live detection technology,and the defects found by the actual application of the live detection,the validity of the partial discharge test and the correctness of the judgment result are verified.This case proves that the partial discharge detection equipment can detect the discharge defects in the running cable and is an effective detection method.Popularize partial discharge live detection in the operation and maintenance of transmission cables.Through big data analysis,you can understand the operating status of the cable in time,and can find abnormal changes in the operating cable data,which is conducive to the timely elimination of defects and reduces the cable failure rate.
作者
李楠
沈南
王文妹
王思莹
刘影
LI Nan;SHEN Nan;WANG Wenmei;WANG Siying;LIU Ying(State Grid Shijiazhuang Electric Power Supply Company,Shijiazhuang 050000,China)
出处
《河北电力技术》
2021年第1期39-41,45,共4页
Hebei Electric Power
关键词
电缆
局部放电
带电检测
缺陷定位
cable
partial discharge
live detection
defect location
