Study of amplitude comparison for protecting transmission lines

Author

Sachdev, M.S. ; Uttamchandani, L. ; Sidhu, TS ; Kennedy, W.O.

Author_Institution

Saskatchewan Univ., Saskatoon, Sask., Canada

fYear

1993

fDate

6/15/1905 12:00:00 AM

Firstpage

356

Lastpage

361

Abstract

The authors present the design of an amplitude comparator. Its operating and restraining signals were formed from those of the Mho relay. Mathematical equations describing the behavior of the phase and amplitude comparators are derived. The characteristics of the phase comparator and its equivalent amplitude comparator are analyzed. The comparators were implemented using the Texas Instruments´ TMS320C25. The performance of the phase and amplitude comparators was checked using the EMTDC simulated data. Some test results are included.

Keywords

comparators (circuits); phase comparators; power transmission lines; relay protection; signal processing equipment; EMTDC simulated data; Mho relay; TMS320C25; Texas Instruments´; amplitude comparator; distance relays; operating signals; phase comparator; restraining signals; transmission lines protection; Digital relays; EMTDC; Equations; Polarization; Power system protection; Power system relaying; Power transmission lines; Protective relaying; Transmission lines; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

WESCANEX 93. 'Communications, Computers and Power in the Modern Environment.' Conference Proceedings., IEEE

Conference_Location

Saskatoon, Sask., Canada

Print_ISBN

0-7803-1319-4

Type

conf

DOI

10.1109/WESCAN.1993.270522

Filename

270522