A new artificial treatment for the reduction of resistance in ground electrode

Author

Martínez, Hugo E. ; Fuentealba, Edward L. ; Cisternas, Luis A. ; Galleguillos, Hector R. ; Kasaneva, Jorge F. ; De la Fuente, Osvaldo A.

Author_Institution

Dept. of Electr. Eng., Univ. of Antofagasta, Chile

Volume

19

Issue

2

fYear

2004

fDate

4/1/2004 12:00:00 AM

Firstpage

601

Lastpage

608

Abstract

This study describes a resistance reduction additive (RRA) for reducing and maintaining reduced resistance of ground electrodes over time. The RRA employed was a mixture of inorganic salts, some of which occur as residues from industrial mineral processing in Chile. Chemical characteristics of the mixture are described, as well as results of measurements of electrical resistance of ground electrodes over time with and without RRA treatment. Measures are also given for current intensities and loss of electrode mass in test electrodes buried below ground with RRA and within cell containers having a specific capacity. Small scale tests were made on the effects of impulse current in test cells containing electrodes treated with the RRA.

Keywords

earth electrodes; electric resistance measurement; power system protection; artificial treatment; cell containers; current intensities; electrode mass; ground electrodes; impulse current; industrial mineral processing; inorganic salts; resistance measurement; resistance reduction additive; Additives; Chemicals; Electric resistance; Electric variables measurement; Electrical resistance measurement; Electrodes; Impulse testing; Minerals; Mining industry; Time measurement;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2004.824760

Filename

1278416