DocumentCode
1374423
Title
Impact of CT Errors on Protective Relays—Case Studies and Analyses
Author
Hunt, Rich
Author_Institution
GE Digital Energy Multilin, Apex, NC, USA
Volume
48
Issue
1
fYear
2012
Firstpage
52
Lastpage
61
Abstract
Current transformers (CTs) are the basic interconnection between the power system and protective relays. One of the practical concerns for the protection engineer is the actual ability of a CT to replicate the primary current. This paper describes how CT replication error impacts protective relay performance by presenting three actual examples of relay performance.
Keywords
current transformers; power system interconnection; relay protection; CT replication error; current replication; current transformer; power system interconnection; protection engineer; protective relay; relay performance; Circuit faults; Current transformers; Fault currents; Generators; Protective relaying; Windings; Instrument transformers; protective relaying;
fLanguage
English
Journal_Title
Industry Applications, IEEE Transactions on
Publisher
ieee
ISSN
0093-9994
Type
jour
DOI
10.1109/TIA.2011.2175879
Filename
6078421
Link To Document