Research into the corona current characteristics of polluted insulators

Autor: Zhigang Tian, Yixiong Nie, Chun Liu, Xianggen Yin, Munong Mao, Yuanfang Wen
Rok vydání: 2002
Předmět:
Zdroj: Proceedings of 2001 International Symposium on Electrical Insulating Materials (ISEIM 2001). 2001 Asian Conference on Electrical Insulating Diagnosis (ACEID 2001). 33rd Symposium on Electrical and Electronic Insulating Materials and Applications in System.
DOI: 10.1109/iseim.2001.973553
Popis: The contamination influences the corona performance of transmission line insulator strings very much. Not only do they change the corona-originated voltage, but also change the quantity and amplitude of the corona pulses. This paper describes experiments into the corona current at diverse contaminating condition and various voltages. The experimental results show that the corona pulses conform to statistic rules and can be used to distinguish faulty insulators from transmission line insulator strings at the definite environmental condition. A fuzzy membership function is established according to the results which can be used as one of the preconditions to detect faulty insulators.
Databáze: OpenAIRE