Research of the influence to the pickup unit of microcomputer relay protection from electric locomotive loads

Author

Zhi-Hui, Lan ; Yong-Hai, Xu ; Xiang-Ning, Xiao

Author_Institution

Sch. of Electr. & Electron. Eng., North China Electr. Power Univ., Beijing

fYear

2008

fDate

6-7 Oct. 2008

Firstpage

1

Lastpage

6

Abstract

What this paper study is the influence of electric locomotive loads to three kinds of pickup unit of microcomputer relay protection. A model is constructed by EMTDC/PSCAD, containing typical power grid and three kinds of pickup unit of microcomputer relay protection. The influence degree by electric locomotive loads to the phase abrupt current pickup unit, the phase-phase abrupt current pickup unit and the half-wave integral pickup unit is discussed, using theories analysis combined with EMTDC/PSCAD simulation. The theoretical basis for the choice of pickup unit is provided in the area where electric locomotive loads are heavy.

Keywords

electric locomotives; microcomputer applications; power grids; power system CAD; power system protection; railway electrification; relay protection; EMTDC-PSCAD; electric locomotive loads; microcomputer relay protection; phase-phase abrupt current pickup unit; power grid; EMTDC; Electric breakdown; Microcomputers; PSCAD; Power engineering and energy; Power grids; Power system modeling; Power systems; Protection; Protective relaying; Electric Locomotive Loads; Microcomputer relay protection; PSCAD simulation; Pickup Unit;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Power Conference, 2008. EPEC 2008. IEEE Canada

Conference_Location

Vancouver, BC

Print_ISBN

978-1-4244-2894-6

Electronic_ISBN

978-1-4244-2895-3

Type

conf

DOI

10.1109/EPC.2008.4763327

Filename

4763327