DocumentCode :
1825098
Title :
Estimation of leakage current level on the transformer bushing using regression technique
Author :
Ahmad, A.S. ; Ghosh, P.S. ; Aljunid, Syed Abdul Kader ; Ahmad, Sahar
Author_Institution :
Coll. of Eng., Univ. Tenaga Nasional, Selangor, Malaysia
Volume :
3
fYear :
2003
fDate :
1-5 June 2003
Firstpage :
1174
Abstract :
System reliability requires monitoring of contamination on insulators surfaces especially near the coastal areas, and to take a convenient action when possible flashovers due to salt contamination may occur. The peak value of leakage current is one of the most widely used methods for this monitoring. Regression technique has been implemented successfully to estimate the value of the leakage current on a high voltage outdoor transformer bushing when the meteorological conditions are known and a mathematical model has been developed. The effect of the meteorological conditions such as humidity, pressure, temperature, wind speed and rainfall on the leakage current has been studied. The model is tested and good result of estimation has been found.
Keywords :
bushings; humidity; insulator contamination; insulator testing; leakage currents; meteorology; potential transformers; power system reliability; power transformer insulation; regression analysis; surface contamination; high voltage outdoor transformer bushing; humidity; insulator test; insulators surfaces contamination; leakage current; mathematical model; meteorological conditions; pressure; rainfall; regression; salt contamination; system reliability; temperature; transformer bushing level; wind speed; Flashover; Insulators; Leakage current; Mathematical model; Meteorology; Monitoring; Power transformer insulation; Reliability; Sea measurements; Surface contamination;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Properties and Applications of Dielectric Materials, 2003. Proceedings of the 7th International Conference on
ISSN :
1081-7735
Print_ISBN :
0-7803-7725-7
Type :
conf
DOI :
10.1109/ICPADM.2003.1218633
Filename :
1218633
Link To Document :
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