Design of a microprocessor-based overcurrent relay

Author

Sidhu, T.S. ; Sachdev, M.S. ; Wood, H.C.

Author_Institution

Power Syst. Res. Group, Saskatchewan Univ., Saskatoon, Sask., Canada

fYear

1991

fDate

29-30 May 1991

Firstpage

41

Lastpage

46

Abstract

The authors describe the design of a microprocessor-based overcurrent relay that is suitable for protecting distribution and subtransmission networks. A modified technique for modeling the time-current characteristics is described. The proposed design is implemented using a Texas Instruments TMS320C25 digital signal processor. Some details of the hardware and software of the relay are presented. A digital overcurrent relay is also described. Test results indicate that the overcurrent relay accurately emulates the desired time-current characteristics

Keywords

digital signal processing chips; distribution networks; microcomputer applications; overcurrent protection; power engineering computing; power system protection; relay protection; Texas Instruments TMS320C25 digital signal processor; digital overcurrent relay; distribution networks; hardware; microprocessor-based overcurrent relay; protection; software; subtransmission networks; time-current characteristics; Digital relays; Equations; Hardware; Laboratories; Power system modeling; Power system protection; Power system relaying; Power system reliability; Protective relaying; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

WESCANEX '91 'IEEE Western Canada Conference on Computer, Power and Communications Systems in a Rural Environment'

Conference_Location

Regina, Sask.

Print_ISBN

0-87942-594-6

Type

conf

DOI

10.1109/WESCAN.1991.160517

Filename

160517