A novel overcurrent relay with universal characteristics

Author

Darwish, H.A. ; Taalab, A.I. ; Assal, H.

Author_Institution

Fac. of Eng., Menoufiya Univ., Shebin El-Kom, Egypt

Volume

1

fYear

2001

fDate

2001

Firstpage

53

Abstract

In this paper, a novel overcurrent relay with universal characteristics is proposed. The relay can be uniquely coordinated with electromechanical, static and other numerical relay versions in a flexible pattern. Two electromechanical relays are experimentally tested and the curves are efficiently modeled. The modeled curves are implemented along with the IEC overcurrent curve equations. A DSP board interfaced with a multi input/output board is employed to examine the real time operation of the proposed relay algorithm. The relay hardware is tested according to the newly recommended IEEE standards. Computer simulation tests are used to measure the relay dynamic performances. The critical issues of the dynamic tests are emphasized. The test results have proven the superior performance of the proposed relay, particularly when being coordinated with other relay technologies

Keywords

overcurrent protection; power system analysis computing; power system protection; power system relaying; relay protection; DSP board; IEC overcurrent curve equations; IEEE standards; computer simulation; electromechanical relays; multi input/output board; power system overcurrent relay; relay algorithm; relay dynamic performances; universal characteristics; Relays;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission and Distribution Conference and Exposition, 2001 IEEE/PES

Conference_Location

Atlanta, GA

Print_ISBN

0-7803-7285-9

Type

conf

DOI

10.1109/TDC.2001.971208

Filename

971208