Title :
Research on a New Method of Insulator Contamination Detection Based on 8mm Radiometer
Author :
Gao Qiang ; Liu Meng ; Li He Ming ; Lu Shan ; Tian Dan
Author_Institution :
Dept. of Electr. & Electron. Eng., North China Electr. Power Univ., Baoding
Abstract :
Based on the microwave radiometry, the brightness temperature of insulator contamination is introduced to the contamination detection with an 8 mm microwave radiometer. And the relation between the brightness temperature and equivalent salt deposit density (ESDD) together with nonsoluble salt deposit density (NSDD) was analyzed by fitting the data from artificial contamination tests under dry and wet conditions, respectively, which obeys the law of power function. The exponent characterizing the influence of ESDD on the brightness temperature is independent of NSDD. And the influence of ESDD on the brightness temperature of contamination is smaller than that of NSDD. Based on the tests and analysis, a model of monitoring system is introduced with radiometer detection.
Keywords :
condition monitoring; insulator contamination; insulator testing; microwave measurement; radiometry; ESDD; NSDD; artificial contamination test; brightness temperature; condition monitoring system; equivalent salt deposit density; insulator contamination detection; microwave radiometry; nonsoluble salt deposit density; power function; size 8 mm; Brightness temperature; Calibration; Dielectrics and electrical insulation; Insulator testing; Microwave radiometry; Microwave theory and techniques; Monitoring; Pollution; Surface contamination; System testing;
Conference_Titel :
Power and Energy Engineering Conference, 2009. APPEEC 2009. Asia-Pacific
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-2486-3
Electronic_ISBN :
978-1-4244-2487-0
DOI :
10.1109/APPEEC.2009.4918673
