Partial discharge recognition of insulation defects in HVDC GIS and a calibration approach

Author

Blufpand, Serge ; Mor, Armando Rodrigo ; Morshuis, Peter ; Montanari, Gian Carlo

Author_Institution

Delft Univ. of Technol., Delft, Netherlands

fYear

2015

fDate

7-10 June 2015

Firstpage

564

Lastpage

567

Abstract

Partial discharge (PD) monitoring is an established technique used to assess the condition of AC gas insulated switchgears (GIS). The growing application of High Voltage Direct Current (HVDC) transmission systems has triggered research projects focusing on the measurement and interpretation of PD signals in DC GIS. In this paper, several insulation defects are characterized using Phase Resolved Partial Discharge (PRPD) patterns in HVAC. The defects then are identified using Time Resolved Partial Discharge (TRPD) patterns in HVDC. Noticeable characteristics of PD patterns in HVDC are presented and related with the physical phenomena of the discharges. The potentiality of on-line defect recognition based on Radio Frequency (RF) PD detection measurement is discussed. In addition, the relationship between the apparent charge and the frequency spectrum of the PD signal is investigated.

Keywords

HVDC power transmission; calibration; gas insulated switchgear; partial discharges; AC gas insulated switchgear; HVDC GIS; PD monitoring; PRPD pattern; RF PD detection measurement; TRPD pattern; calibration approach; high voltage direct current transmission system; insulation defect partial discharge recognition; on-line defect recognition; phase resolved partial discharge pattern; radiofrequency PD detection measurement; time resolved partial discharge pattern; Atmospheric measurements; Conductors; Monitoring; Partial discharges; Particle measurements; Pulse measurements; Switches; HVDC; IEC60270; RF method; UHF; floating particles; gas insulated substations; gas insulated switchgear; internal discharges; partial discharges; surface discharges;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation Conference (EIC), 2015 IEEE

Conference_Location

Seattle, WA

Print_ISBN

978-1-4799-7352-1

Type

conf

DOI

10.1109/ICACACT.2014.7223591

Filename

7223591