Title :
Development of partial discharge automated locating system for power cable
Author :
Miyazaki, Akinobu ; Yagi, Manabu ; Kobayashi, Shin-Ichi ; Min, Chen ; Hirotsu, Kenichi ; Nishima, Hideaki
Author_Institution :
Chubu Electr. Power Co. Inc., Nagoya, Japan
Abstract :
A partial discharge (PD) locating system, which can automatically distinguish PD from noise and locate the PD site in power cables, has been fabricated successfully and verified in an after-laying test of a Gas Insulated transmission Line (GIL). The system provides sufficient detection accuracy to meet the requirements of the practical measurement on site. This paper presents the PD locating principle and the system configuration. A new concept of recognizing PD based on the relative distribution between PD magnitude, PD site location, and measuring time is described. The results of applying the system in the on-site test for GIL are also reported
Keywords :
gaseous insulation; insulation testing; partial discharge measurement; power cable insulation; power cable testing; power transmission lines; gas insulated transmission line; on-site test; partial discharge automated locating system; power cable; Electrodes; Fault location; Frequency; Gas insulated transmission lines; Insulation; Partial discharges; Power cables; System testing; Time measurement; Transmission line measurements;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1998. Annual Report. Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-5035-9
DOI :
10.1109/CEIDP.1998.732926
