WANG Feng, LIU Han-bing. Study on on-line monitoring of surface charge of insulator based on generalized probe[J]. 2011, 30(8): 59-61. DOI: 10.13873/j.1000-97872011.08.013.
The theory of electrostatic probe method used to measure surface charge distribution is analyzed and a new method used to monitor surface charge on line which is based on generalized electrostatic probe is presented.It shows that when static charge is loaded on the insulator in GIS
voltage signal will be induced on the metal conductor.Through measuring the voltage signal
accumulation degree of the surface charge on the insulator can be detected in real time.So the flashover on surface of the insulator can be reduced greatly and the safety of the power system can be increased.