Current-Zero Characteristics of a Vacuum Circuit Breaker at Short-Circuit Current Interruption

2006 ◽  
Author(s):  
E. P. A. van Lanen ◽  
R. P. P. Smeets ◽  
Marjan Popov ◽  
Lou van der Sluis
Keyword(s):  
Short Circuit ◽  
Circuit Breaker ◽  
Short Circuit Current ◽  
Current Interruption ◽  
Vacuum Circuit Breaker ◽  
Current Zero

Analysis of Dynamic Arc Parameters for Vacuum Circuit Breaker Under Short-Circuit Current Breaking

2019 ◽  
Vol 29 (2) ◽  
pp. 1-5 ◽  
Author(s):  
Hai Chen ◽  
Xiaoming Liu ◽  
Longnv Li ◽  
Yixiong Liu ◽  
Yaqian Zhang ◽  
...  
Keyword(s):  
Short Circuit ◽  
Circuit Breaker ◽  
Short Circuit Current ◽  
Vacuum Circuit Breaker

On the hot gas exhaustion in the exhaust chamber of a gas circuit breaker after short-circuit current interruption

1997 ◽  
Vol 30 (22) ◽  
pp. 3123-3130 ◽  
Author(s):  
Yasushi Hayashi ◽  
Katsumi Suzuki ◽  
Eiichi Haginomori ◽  
Hiroaki Toda ◽  
Hisatoshi Ikeda
Keyword(s):  
Short Circuit ◽  
Circuit Breaker ◽  
Short Circuit Current ◽  
Current Interruption ◽  
Hot Gas

A New-Type Contact Structure of Vacuum Interrupters with the Saddle-Shaped Axial Magnetic Field Distribution

2012 ◽  
Vol 614-615 ◽  
pp. 1138-1141 ◽  
Author(s):  
Peng Sun ◽  
Cong Jun Xue
Keyword(s):  
Magnetic Field ◽  
Field Distribution ◽  
Axial Magnetic Field ◽  
Short Circuit ◽  
Circuit Breaker ◽  
Short Circuit Current ◽  
Magnetic Field Distribution ◽  
Vacuum Arc ◽  
Vacuum Circuit Breaker ◽  
Type Contact

The Axial Magnetic Field (AMF) applied to the arc vacuum column in the vacuum tube can make the vacuum arc keeping in diffusion state, provided that the short circuit current to be interrupt is within a critical value. In the results, the breaking ability of Vacuum Interrupters can be highly improved with the help of the AMF. The experimental study has proved that the AMF should be sufficient strong and have optimum distribution, in order to improve the breaking capacity of vacuum circuit breaker. This paper presents a novel axial magnetic contact with the concave axial magnetic field distribution and its 3-d simulation.

scholarly journals Development and Testing of a 252 kV/2500 A-40 kA Multi-Break Bus-Coupler Fast Vacuum Circuit Breaker

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4285
Author(s):  
Kui Ma ◽  
Xiaofei Yao ◽  
Luyang Zhang ◽  
Shaogui Ai ◽  
Shuhong Wang ◽  
...  
Keyword(s):  
High Velocity ◽  
Short Circuit ◽  
Circuit Breaker ◽  
Short Circuit Current ◽  
Test Results ◽  
Vacuum Circuit Breaker ◽  
In Series ◽  
Short Circuit Fault

It is effective to open the bus-coupler circuit breaker in case of a short-circuit fault. A fast vacuum circuit breaker (FVCB) is an ideal bus-coupler circuit breaker due to its high velocity. The objective of this study was to develop and test a 252 kV/2500 A-40 kA multi-break bus-coupler FVCB. The 252 kV FVCB contained 12 FVCB units. Each phase consisted of four FVCB units connected in series. Each FVCB unit had an electromagnetic repulsion mechanism with an average opening velocity reaching 6.5 m/s. Test results showed the opening time was 1.11 ± 0.08 ms. The capacitance of the voltage grading capacitor of each break was determined to be 10 nF. The prototype 252 kV bus-coupler FVCB passed all partial test duties according to the IEC 62271-100: 2008 and IEC 62271-1: 2007 standards, which include an insulation test and a terminal fault test among others. A 252 kV/2500 A-40 kA multi-break bus-coupler FVCB can be used to quickly cut off a short-circuit fault and effectively limit a short-circuit current.

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