scholarly journals Modular Reciprocating HVDC Circuit Breaker with Current-limiting and Bi-directional Series-parallel Branch Switching Capability

2020 ◽  
Vol 8 (4) ◽  
pp. 778-786
Author(s):  
Jianzhong Xu ◽  
Moke Feng ◽  
Chengyong Zhao
Keyword(s):  
Circuit Breaker ◽  
Current Limiting ◽  
Branch Switching

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

Design and Simulation of Breaking Time Sequence for DC Circuit Breaker with a Current-Limiting Inductance

2014 ◽  
Vol 556-562 ◽  
pp. 1959-1963
Author(s):  
Si Ming Wei ◽  
Yi Gong Zhang ◽  
Huan Liu ◽  
Zhi Qiang Dai ◽  
Xiao Du
Keyword(s):  
Design Method ◽  
Circuit Breaker ◽  
Time Sequence ◽  
Fault Current ◽  
Distribution Grid ◽  
Current Limiting ◽  
Selection Principles ◽  
Dc Circuit Breaker ◽  
Breaking Time ◽  
A Current

It is great significance for development of MTDC (Multi-terminal HVDC) to build DC transmission and distribution grids. However, the relatively low impedance in DC grids makes the fault penetration much faster and deeper .Consequently, fast and reliable DC circuit breaker is needed to isolate faults. Breaking time and other parameters are important for a breaker to achieve its goals. This paper presents a DC circuit breaker with a current-limiting inductance and gets the rising and falling characteristics of fault current. Based on the characteristics, a design method of breaking time sequence will be given, as well as the calculation of current-limiting inductance and the selection principles of arresters. A 10kV DC distribution grid is modeled and simulated by PSCAD/EMTDC to verify that the method can meet the requirements of breaking fault current quickly and reliably.

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