Comprehensive analysis of Single CT in Bus coupler compared to Dual CT for Bus Bar protection scheme
Abstract
In this document, the bus bar protection application using single current transformer over dual current transformer in a bus section or bus coupler arrangement is discussed. The impact of the protection system based on the location of the current transformer is discussed considering various faults in each location.
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References
Wai-Kai Chen, The electrical engineering handbook, chapter 9, Page 789
IEEE Std C37.20.1-2002, IEEE Standard for metal-enclosed low voltage power circuit breaker switchgear, Page 32
GEK-119552, B90 Low impedance bus differential system, UR series instruction manual, Page 5-112, 5-131, 5-140, 5-144, 8-6.
Bogdan kasztenny, Lubomir Sevov and Gustavo brunello, digital low impedance bus differential protection – review of principles and approaches
IEEE C37.2-2008, IEEE standard electrical power system device function numbers, acronyms and contact designations
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