DocumentCode
473245
Title
CT Saturation In Industrial Applications - Analysis and Application Guidelines
Author
Kasztenny, Bogdan ; Mazereeuw, J. ; DoCarmo, H.
Author_Institution
Gen. Electr. Multilin, Markham, ON
fYear
2008
fDate
17-20 March 2008
Firstpage
418
Lastpage
425
Abstract
This paper explains issues associated with instantaneous overcurrent protection in industrial applications where protective relays may be supplied from low-ratio CTs. The problem is analyzed in detail, and its underlying mechanics explained. A formal, compact and easy to grasp method is shown to present complex relations between the CT response and the response of any given relay. Based on this graphical method one can quickly evaluate the problem and clearly see alternative solutions if a problem truly exists.
Keywords
current transformers; overcurrent protection; relays; current transformers; instantaneous overcurrent protection; protective relays; Circuit faults; Current transformers; Fault currents; Low pass filters; Maximum likelihood detection; Nonlinear filters; Relays;
fLanguage
English
Publisher
iet
Conference_Titel
Developments in Power System Protection, 2008. DPSP 2008. IET 9th International Conference on
Conference_Location
Glasgow
ISSN
0537-9989
Print_ISBN
978-0-86341-902-7
Type
conf
Filename
4497022
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