Current transfer process in open operation between parallel breaks of vacuum generator circuit breaker

2002 ◽  
Author(s):  
Liu Zhiyuan ◽  
Wang Jimei ◽  
Wang Zhongyi ◽  
Yuan Shun
Keyword(s):  
Transfer Process ◽  
Circuit Breaker ◽  
Current Transfer ◽  
Generator Circuit ◽  
Open Operation ◽  
Vacuum Generator

scholarly journals Vacuum Large Current Parallel Transfer Numerical Analysis

2014 ◽  
Vol 2014 ◽  
pp. 1-7
Author(s):  
Enyuan Dong ◽  
Shengkai Hou ◽  
Xiang Zheng ◽  
Taotao Qin ◽  
Guixin Liu ◽  
...  
Keyword(s):  
Circuit Breaker ◽  
Difficult Problem ◽  
Vacuum Arc ◽  
Stable Operation ◽  
Transfer Time ◽  
Generator Circuit ◽  
Proper Timing ◽  
Large Current ◽  
Vacuum Generator ◽  
Opening Phase

The stable operation and reliable breaking of large generator current are a difficult problem in power system. It can be solved successfully by the parallel interrupters and proper timing sequence with phase-control technology, in which the strategy of breaker’s control is decided by the time of both the first-opening phase and second-opening phase. The precise transfer current’s model can provide the proper timing sequence to break the generator circuit breaker. By analysis of the transfer current’s experiments and data, the real vacuum arc resistance and precise correctional model in the large transfer current’s process are obtained in this paper. The transfer time calculated by the correctional model of transfer current is very close to the actual transfer time. It can provide guidance for planning proper timing sequence and breaking the vacuum generator circuit breaker with the parallel interrupters.

200 kA circuit breaker with 10 μsec current transfer time

1975 ◽  
Vol 46 (11) ◽  
pp. 1542-1545 ◽  
Author(s):  
C. A. Bleys ◽  
D. Lebely ◽  
C. Rioux ◽  
F. Rioux‐Damidau
Keyword(s):  
Circuit Breaker ◽  
Current Transfer ◽  
Transfer Time

Equivalent Circuit Model for the Electrochemical Reaction Process within the Solid Oxide Fuel Cell Composite Electrode

2013 ◽  
Vol 662 ◽  
pp. 266-272 ◽  
Author(s):  
Dai Fen Chen ◽  
Qi Ce Zeng ◽  
Huan Huan He ◽  
Liang Wei ◽  
Zi Dong Yu
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Electric Current ◽  
Equivalent Circuit ◽  
Transfer Process ◽  
Composite Electrode ◽  
Electrochemical Reaction ◽  
Solid Oxide ◽  
Current Transfer ◽  
Oxide Fuel

As the fabrication technology of the composite electrode becomes sophisticated, the understanding of the detailed knowledge of the microstructure’s effect on the electrochemical process is essential for the commercializing of the solid oxide fuel cell (SOFC). In this paper, an equivalent circuit for the SOFC structure is proposed to clearly describe the electronic electric current transfer process, ionic electric current transfer process and the charge transfer process at the electrochemical reaction interface between electronic and ionic conducting materials. And types of the boundary condition setting constraints for the developing of the multi-physics coupling numerical model of SOFC are obtained basing on the electrochemical kinetic analysis.

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