高压电器2017，Vol.53Issue(6)：129-134,140,7.DOI:10.13296/j.1001-1609.hva.2017.06.022
XLPE电缆内置传感器检测局部放电的带电校准技术研究
Online Calibration of Inner Capacitive Coupling Sensor for XLPE Cables
王天 1顾霄 2徐阳 2夏荣 2邵颖彪 3马德英1
作者信息
- 1. 国网河南省电力公司电力科学研究院,郑州450052
- 2. 西安交通大学电力设备电气绝缘国家重点实验室,西安710049
- 3. 中国电力科学研究院,武汉430074
- 折叠
摘要
Abstract
During factory test and off-line test in field,the apparent charge quantity is expressed in picocoulomb (pC).A novel online calibration method based on the simulation of inner capacitive coupling equivalent circuits is proposed,to convert the measured results into the form of the quantity of the apparent charge for the comparison with the results obtained from the off-line tests.The online calibration method is performed in laboratory on a 35 kV XLPE cable along with two other online calibration methods,and compared with the terminal calibration method according to IEC 60270:2000 standard.By taking the stray capacitance Cs into consideration,the results prove that the scale factor obtained by the proposed novel method has good fit with that obtained by the standard method better.关键词
局部放电/XLPE电缆/电容耦合/带电检测/校准Key words
partial discharge/XLPE power cable/capacitive coupling/online detection/calibration引用本文复制引用
王天,顾霄,徐阳,夏荣,邵颖彪,马德英..XLPE电缆内置传感器检测局部放电的带电校准技术研究[J].高压电器,2017,53(6):129-134,140,7.
