A study of correlation between protection trips and geomagnetically induced currents in a power transmission line in Brazil

Author

Mustafa, T.I.A.H. ; Cabral, S.H.L. ; Puchale, L.B. ; Fuch, M.G. ; Lima, L.E.C. ; Flores, Fernando T.

Author_Institution

Dept. of Electr. & Telecommun. Eng., Univ. of Blumenau, Blumenau, Brazil

fYear

2013

fDate

2-6 Sept. 2013

Firstpage

837

Lastpage

840

Abstract

This paper presents analyses of data in view of obtaining a possible correlation between geomagnetic activity and protection trips in a 138 kV-197.12 km power transmission line in southern Brazil. Most of these outages are caused by faults randomly located along the line. In consequence, many studies have been done to identify the main reason for these events, now including the investigation of the phenomenon of Geomagnetically Induced Currents (GIC) as being the cause of the problems that affect the reliability of the protection system of that and other power transmission lines. Preliminary results shown in this work allow identifying the degree of dependence between geomagnetic activity and occurrence of protection trips for the studied line.

Keywords

geomagnetic variations; power transmission lines; power transmission protection; Brazil; GIC; distance 197.12 km; geomagnetically induced current; power transmission line; protection system reliability; protection trip; southern Brazil; voltage 138 kV; Correlation; Electromagnetic compatibility; Indexes; Power transmission lines; Storms; Transmission line measurements; GIC; line transmission; protection systems; reliability;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility (EMC EUROPE), 2013 International Symposium on

Conference_Location

Brugge

ISSN

2325-0356

Type

conf

Filename

6653415