Impact of harmonics on tripping time of overcurrent relays

Author

Masoum, M.A.S. ; Islam, S.M. ; Tan, K. ; Xuan, T.N.

Author_Institution

Dept. of Electr. & Comput. Eng., Curtin Univ. of Technol., Perth, WA

fYear

2007

fDate

9-12 Dec. 2007

Firstpage

1

Lastpage

5

Abstract

Theoretical and experimental analyses are used to investigate the effects of harmonics on the operation of overcurrent relays. Two analytical approaches based on relay characteristics provided by the manufacturer and simulations using PSCAD software package are used to estimate tripping times under non-sinusoidal operating conditions. The tests were conducted such that the order and the magnitude of harmonics could be controlled by employing a computer-based single-phase harmonic source. Computed and measured tripping times are compared and suggestions on the application of overcurrent relays in harmonically polluted environments are provided.

Keywords

harmonic analysis; overcurrent protection; power system CAD; relay protection; PSCAD software package; computer-based single-phase harmonic source; harmonic effects; nonsinusoidal operating conditions; tripping time overcurrent relays; Analytical models; Application software; Computational modeling; Harmonic analysis; PSCAD; Pollution measurement; Relays; Software packages; Testing; Virtual manufacturing; Overcurrent relay; harmonic; tripping time and power quality;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering Conference, 2007. AUPEC 2007. Australasian Universities

Conference_Location

Perth, WA

Print_ISBN

978-0-646-49488-3

Electronic_ISBN

978-0-646-49499-1

Type

conf

DOI

10.1109/AUPEC.2007.4548125

Filename

4548125