Dielectric strength of electric contacts after short‐duration arc in a hybrid DC circuit breaker

2020 ◽  
Vol 15 (5) ◽  
pp. 671-675
Author(s):  
Ryo Nakayama ◽  
Chomrong Ou ◽  
Shungo Zen ◽  
Koichi Yasuoka
Keyword(s):  
Short Duration ◽  
Circuit Breaker ◽  
Dielectric Strength ◽  
Electric Contacts ◽  
Dc Circuit Breaker

Malfunction Issue of SiC-SIT Based DC Circuit Breaker in 400V DC Power Distribution Systems for Data Centers

2012 ◽  
Vol E95.B (6) ◽  
pp. 1990-1996
Author(s):  
Seiya ABE ◽  
Sihun YANG ◽  
Masahito SHOYAMA ◽  
Tamotsu NINOMIYA ◽  
Akira MATSUMOTO ◽  
...  
Keyword(s):  
Power Distribution ◽  
Distribution Systems ◽  
Data Centers ◽  
Circuit Breaker ◽  
Power Distribution Systems ◽  
Dc Power ◽  
Dc Circuit Breaker

Combined Hybrid DC Circuit Breaker Capable of Controlling Current Flow

2020 ◽  
pp. 1-1
Author(s):  
Shuo Zhang ◽  
Guibin Zou ◽  
Xiuyan Wei ◽  
Chengquan Zhang
Keyword(s):  
Current Flow ◽  
Circuit Breaker ◽  
Dc Circuit Breaker

A Novel Forced Resonant Mechanical DC Circuit Breaker by Using Auxiliary Oscillation Switch for Zero-crossing

2021 ◽  
pp. 1-1
Author(s):  
Lei Qi ◽  
Xilin Chen ◽  
Xinyuan Qu ◽  
Liangtao Zhan ◽  
Xiangyu Zhang ◽  
...  
Keyword(s):  
Circuit Breaker ◽  
Zero Crossing ◽  
Dc Circuit Breaker

scholarly journals Capacitor Commutation Method for MVDC Hybrid Circuit Breakers

Designs ◽  
2021 ◽  
Vol 5 (2) ◽  
pp. 28
Author(s):  
Hyosung Kim
Keyword(s):  
Short Circuit ◽  
Circuit Breaker ◽  
Reverse Current ◽  
Resonant Circuit ◽  
Power Circuit ◽  
Power Sources ◽  
Semiconductor Switch ◽  
Current Commutation ◽  
Dc Circuit Breaker ◽  
Hybrid Circuit

The medium voltage DC (MVDC) type system can connect multiple terminals to a common MVDC bus, so it is possible to connect several renewable DC power sources to the common MVDC bus, but a DC circuit breaker is needed to isolate short circuit accidents that may occur in the MVDC bus. For this purpose, the concept of a hybrid DC circuit breaker that takes advantage of a low conduction loss contact type switch and an arcless-breaking semiconductor switch has been proposed. During break the hybrid switch, a dedicated current commutation device is required to temporarily bypass the load current flowing through the main switch into a semiconductor switch branch. Existing current commutation methods include a proactive method and a reverse current injection method by a LC (Inductor-capacitor) resonant circuit. This paper proposes a power circuit of a new MVDC hybrid circuit breaker using a low withstanding voltage capacitor branch for commutation and a sequence controller according to it, and verifies its operation through an experiment.

A modular hybrid DC circuit breaker with fault current self-adaptive control and protection coordination

2022 ◽  
Vol 134 ◽  
pp. 107434
Author(s):  
Shimin Xue ◽  
Baibing Liu ◽  
Shouxiang Wang ◽  
Xiao Chen ◽  
Xiaoshuai Zhu ◽  
...  
Keyword(s):  
Adaptive Control ◽  
Circuit Breaker ◽  
Fault Current ◽  
Dc Circuit Breaker ◽  
Self Adaptive

Arcing Time of a DC Circuit Breaker Based on a Superconducting Current-Limiting Technology

2016 ◽  
Vol 26 (7) ◽  
pp. 1-5 ◽  
Author(s):  
Bin Xiang ◽  
Licai Zhang ◽  
Kun Yang ◽  
Yaxiong Tan ◽  
Zhiyuan Liu ◽  
...  
Keyword(s):  
Circuit Breaker ◽  
Current Limiting ◽  
Dc Circuit Breaker ◽  
Superconducting Current
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