Title :
Partial discharge and the measurement in GIS
Author :
Xiaolian, Han ; Feng Yinping ; Yuchang, Qiu ; Xiaoguang, Zheng ; Jinqing, Chen
Author_Institution :
Div. of High Voltage, Xi´´an Jiaotong Univ., China
Abstract :
The focal point of this paper is to study the partial discharge on-line diagnostic measurement system in GIS from the aspect of electrical measurement assuming that there were not any measurement devices before the GIS being put to use. A length of coaxial cable was wound on a magnetic ring. Also by the use of an impedance alternator, a higher sensitivity was realized. The foil sensor and antenna sensor are the important parts of the perfect partial discharge measurement system in GIS. The sensitivities of the sensors were determined by comparing to the charge quantity measured by 50 Ω resistance. The characteristics of the partial discharge that was produced by a fixed protrusion, free particles and the surface contamination on the spacer was studied in the GIS simulation system
Keywords :
charge measurement; coaxial cables; coils; computerised instrumentation; electric sensing devices; gas insulated switchgear; partial discharges; GIS; antenna sensor; charge quantity measurement; coaxial cable; electrical measurement; fixed protrusion; foil sensor; free particles; gas insulated switchgear; impedance alternator; magnetic ring; on-line diagnostic measurement system; partial discharge; spacer; surface contamination; Antenna measurements; Coaxial cables; Electric variables measurement; Geographic Information Systems; Magnetic sensors; Partial discharge measurement; Partial discharges; Pollution measurement; Sensor phenomena and characterization; Sensor systems;
Conference_Titel :
Electrical Insulation, 1996., Conference Record of the 1996 IEEE International Symposium on
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-3531-7
DOI :
10.1109/ELINSL.1996.549288
