A study of the correlation of leakage current, humidity and temperature of 25 kV insulators in urban and rural areas

Author

Meyer, L.H. ; Oliboni, C.R.P. ; Graziano, G.C. ; Mustafa, T.I.A.H. ; Almaguer, H.A.D. ; Molina, F.H. ; Cassel, G.

Author_Institution

Dept. of Elec. Eng., Univ. of Blumenau, Blumenau, Brazil

fYear

2011

fDate

16-19 Oct. 2011

Firstpage

398

Lastpage

402

Abstract

A leakage current monitor was developed to measure and register the leakage current on the surface of ceramic line post insulators. Along with the leakage current, the ambient relative humidity and temperature were also measured and registered in insulators installed in urban and rural areas. The paper shows the results of these variables measurement and a correlation study among them. Main conclusions are that the leakage current is strongly dependent on ambient humidity. In polluted insulators the leakage current presents rather a random behavior, with lower dependency on the humidity.

Keywords

ceramic insulators; electric current measurement; humidity measurement; leakage currents; ambient relative humidity; ambient relative temperature; ceramic line post insulators; humidity insulators; leakage current correlation; leakage current measurement; leakage current monitor; polluted insulators; rural areas; temperature insulators; urban areas; voltage 25 kV; Correlation; Humidity; Insulators; Leakage current; Monitoring; Temperature measurement; Temperature sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena (CEIDP), 2011 Annual Report Conference on

Conference_Location

Cancun

ISSN

0084-9162

Print_ISBN

978-1-4577-0985-2

Type

conf

DOI

10.1109/CEIDP.2011.6232679

Filename

6232679