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Operating mechanism of SiC-SIT DC circuit breaker in 400V-DC power supply system for data center — In case of grounding fault

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6 Author(s)
Seiya Abe ; The International Center for the Study of East Asian Development, Kitakyushu, Japan ; Tamotsu Ninomiya ; Sihun Yang ; Masahito Shoyama
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In DC power supply system, a fast response circuit breaker is required. Semiconductor DC circuit breaker is an important key technology in DC power supply system. This paper considers the operating characteristics of Silicon Carbide-Static Induction Transistor (SiC-SIT) based DC circuit breaker in DC power supply system when grounding fault occurs. The operating mechanism of grounding fault case is explained compared with short fault case.

Published in:

2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC)

Date of Conference:

5-9 Feb. 2012