Locating faults by the traveling waves they launch

Author

Schweitzer, E.O. ; Guzman, Armando ; Mynam, M.V. ; Skendzic, V. ; Kasztenny, Bogdan ; Marx, S.

Author_Institution

Schweitzer Eng. Labs., Inc., Pullman, WA, USA

fYear

2014

fDate

March 31 2014-April 3 2014

Firstpage

95

Lastpage

110

Abstract

Faults on overhead transmission lines cause transients that travel at the speed of light and propagate along the power line as traveling waves (TWs). This paper provides an overview of TWs and TW fault locators. It explains the physics, reviews the theory of TWs, explains the foundations of various types of TW fault locators, and provides an in-depth discussion on a number of TW fault locating implementation challenges. Finally, it discusses integration of TW fault locating in microprocessor-based relays and presents Bonneville Power Administration´s (BPA´s) field experience using these relays.

Keywords

fault location; microprocessor chips; microrelays; power cables; power overhead lines; power transmission faults; BPA; Bonneville Power Administration; TW; fault location; microprocessor-based relay; overhead transmission power line; traveling wave; Accuracy; Circuit faults; Current measurement; Equations; Fault location; Power transmission lines; Transmission line measurements;

fLanguage

English

Publisher

ieee

Conference_Titel

Protective Relay Engineers, 2014 67th Annual Conference for

Conference_Location

College Station, TX

Print_ISBN

978-1-4799-4740-9

Type

conf

DOI

10.1109/CPRE.2014.6798997

Filename

6798997