A magnetic loop antenna for partial discharge measurements on GIS

被引：18
|
作者：
Mor, A. Rodrigo [1 ]
Heredia, L. C. Castro [1 ]
Munoz, F. A. [1 ]
机构：
[1] Delft Univ Technol, Elect Sustainable Energy Dept, Delft, Netherlands
来源：
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS | 2020年 / 115卷
基金：
欧盟地平线“2020”;
关键词：
Partial discharge; GIS; Magnetic sensor; Magnetic loop antenna; Charge calibration; CHARGE;
D O I：
10.1016/j.ijepes.2019.105514
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper presents a magnetic loop antenna for partial discharge (PD) measurements on gas insulated systems (GIS). The antenna is based on a single shielded loop inserted in the dielectric window of a GIS that measures the PD currents propagating in TEM mode. The paper describes the relevant parameters of the antenna and the antenna performance in combination with a transimpedance amplifier. A calibration method for charge estimation is presented along with laboratory experiments with free moving particle, surface and corona discharges in SF6 test cells. The results show the suitability of the magnetic antenna for PD detection and the charge evaluation performance. Under laboratory conditions, the antenna sensitivity is in the order of 1 pC at a few meters from the PD source.
引用
收藏
页数：6
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