UHF Characteristics of PD Monitoring in XLPE Cable Accessories

Author

Wang, Wei ; Zheng, Bin ; Li, Chengrong ; Zhang, Jifei ; Liu, Chong

Author_Institution

Beijing Key Laboratory of High Voltage & EMC; Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control, Ministry of Education, North China Electric Power University, Beijing, 102206, China. E-mail: wwang-bj@ieee.org

fYear

2007

fDate

8-13 July 2007

Firstpage

564

Lastpage

568

Abstract

In this paper, we experimented on the UHF characteristics of PD monitoring in XLPE cable accessories, such as four different types of PD signals[1]: cavity discharge signal, protrusion discharge signal, surface discharge signal and floating discharge signal. Also, the influence of mobile signals interference was discussed. The results showed that the mobile signal´s spectrum is broad when the phone signals are emited. The proper UHF measuring band was confirmed by simulation analysis, experiment in laboratory and test on site, it is between 1.2GHz to 1.6GHz. On-site PD detection had approved that this measuring band can suppress the interference effectively, and the detection sensitivity can reach to 48pC

Keywords

Background noise; Bandwidth; Frequency; Laboratories; Monitoring; Partial discharges; Power cables; Signal analysis; Testing; UHF measurements;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid Dielectrics, 2007. ICSD '07. IEEE International Conference on

Conference_Location

Winchester, UK

Print_ISBN

1-4244-0750-8

Electronic_ISBN

1-4244-0751-6

Type

conf

DOI

10.1109/ICSD.2007.4290876

Filename

4290876