电测与仪表2016，Vol.53Issue(23)：28-33,6.
基于冲击电压下有功损耗测量的电缆绝缘状态评估
Assessment of cable insulation condition based on active power loss measurement under impulse voltage
张兴隆 1毛欣 1曾灿 1周旋 1肖旭 1何珉 2周凯2
作者信息
- 1. 国网重庆市电力公司永川供电分公司，重庆402160
- 2. 四川大学电气信息学院，成都610065
- 折叠
摘要
Abstract
In order to assess the cable insulation conditions , a measurement system is designed to acquire the data of the impulse voltage and surge current based on LabVIEW , and a method of active power loss is proposed for the evalu-ation of insulation condition of the cable .A low damping resistance-capacitance series voltage divider based on two -stage division is designed as the voltage sensor , and a hollow Rogowski coil is designed as the current sensor .The DS6104 oscilloscope is designed as a data acquisition device , and the LabVIEW software platform is used to control the oscilloscope and acquire and store data .The measurement system can automatically and synchronously acquire and store the data of the impulse voltage and surge current without oscillation and distortion .The data of impulse voltage and surge current is measured , and numerical integration is calculated to obtain active power loss of the water tree ag-ing cable .The active power loss and the dielectric loss are consistent for the same cables samples .It indicates that the active power loss can assess the cable insulation conditions .关键词
冲击电压/冲击电流/有功损耗/分压器/罗氏线圈/LabVIEWKey words
impulse voltage/surge current/active power loss/divider/Rogowski coil/LabVIEW分类
信息技术与安全科学引用本文复制引用
张兴隆,毛欣,曾灿,周旋,肖旭,何珉,周凯..基于冲击电压下有功损耗测量的电缆绝缘状态评估[J].电测与仪表,2016,53(23):28-33,6.
