DocumentCode
1084467
Title
Three terminal line protection based on a superimposed component impedance relay
Author
Daniel, J.S. ; Aggarwal, R.K. ; Johns, A.T.
Author_Institution
Dept. of Electr. & Electron. Eng., Newcastle upon Tyne Univ., UK
Volume
140
Issue
6
fYear
1993
fDate
11/1/1993 12:00:00 AM
Firstpage
447
Lastpage
454
Abstract
The paper presents the application of a new impedance relaying principle to a Teed feeder. The relay design is immune from false tripping owing to power swings or prefault load conditions. This has been achieved by extracting and using prefault and superimposed components of relaying voltages and currents. Results are presented for earth faults on a Teed feeder configuration. Relay trip time is typically in the range 11 to 20 ms and is plotted as a surface against prefault power angle and fault point on wave angle
Keywords
distribution networks; earthing; electrical faults; power system protection; relay protection; 11 to 20 ms; Teed feeder; design; earth faults; fault point on wave angle; power swings; power system protection; power transmission lines; prefault load conditions; prefault power angle; superimposed component impedance relay; trip time;
fLanguage
English
Journal_Title
Generation, Transmission and Distribution, IEE Proceedings C
Publisher
iet
ISSN
0143-7046
Type
jour
Filename
285170
Link To Document