DocumentCode
707849
Title
CT saturation tolerance for 87L applications
Author
Zhihan Xu ; Proctor, Matt ; Voloh, Ilia ; Lara, Mike
Author_Institution
Digital Energy, Gen. Electr., Markham, ON, Canada
fYear
2015
fDate
March 30 2015-April 2 2015
Firstpage
646
Lastpage
671
Abstract
This paper is exploring requirements for the line current differential function (87L) with regards to the tolerance to current transformer (CT) saturation. Typically, requirements provided by the manufacturers or standards are to eliminate CT saturation completely by proper sizing of CTs, which is not always practical.
Keywords
current transformers; differential transformers; fault diagnosis; mathematical analysis; relays; reliability; 87L application; AC saturation; CT circuit model; CT saturation tolerance; DC saturation; breaker-and-a-half-ring configuration; current transformer; differential relay security; line current differential function; mathematical deduction; reliability; Circuit faults; Current transformers; Fault currents; Instrument transformers; Integrated circuit modeling; Mathematical model; Windings; CT Saturation Tolerance; Line Current Differential Relay;
fLanguage
English
Publisher
ieee
Conference_Titel
Protective Relay Engineers, 2015 68th Annual Conference for
Conference_Location
College Station, TX
Print_ISBN
978-1-4799-8721-4
Type
conf
DOI
10.1109/CPRE.2015.7102202
Filename
7102202
Link To Document