Study of New Method Combined Ultra-High Frequency (UHF) Method and Ultrasonic Method on PD Detection for GIS

2nd International Conference on Design and Manufacturing Engineering

工业技术;机械制造

Li, Yanran^1 ; Chen, Duo^1 ; Zhang, Jiwei^1 ; Chen, Ning^2 ; Li, Xiaoqi^1 ; Gong, Xiaojing^1

Jinan Power-supply Company, Jinan, Shandong

250012, China^1

Zaozhuang Power-supply Company, Zaozhuang, Shandong

277100, China^2

关键词: Fault localization;    GIS-Gas insulated switchgear;    Insulation performance;    Partial discharge detection;    Partial discharge in GIS;    Partial discharge tests;    Simulated environment;    Ultra high frequency method;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/239/1/012008/pdf
DOI  :  10.1088/1757-899X/239/1/012008

学科分类：工业工程学

来源: IOP

【 摘 要 】

GIS (gas insulated switchgear), is an important equipment in power system. Partial discharge plays an important role in detecting the insulation performance of GIS. UHF method and ultrasonic method frequently used in partial discharge (PD) detection for GIS. It is necessary to investigate UHF method and ultrasonic method for partial discharge in GIS. However, very few studies have been conducted on the method combined this two methods. From the view point of safety, a new method based on UHF method and ultrasonic method of PD detection for GIS is proposed in order to greatly enhance the ability of anti-interference of signal detection and the accuracy of fault localization. This paper presents study aimed at clarifying the effect of the new method combined UHF method and ultrasonic method. Partial discharge tests were performed in laboratory simulated environment. Obtained results show the ability of anti-interference of signal detection and the accuracy of fault localization for this new method combined UHF method and ultrasonic method.