Co-simulation on the optimization design of high-speed electromagnetic repulsion mechanism of vacuum circuit breaker

2016 ◽  
Author(s):  
Yushan Hou ◽  
Zongqian Shi ◽  
Sheng Li ◽  
Yingkui Zhang ◽  
Jun Bai ◽  
...  
Keyword(s):  
High Speed ◽  
Optimization Design ◽  
Circuit Breaker ◽  
Vacuum Circuit Breaker

A Model-Based Fault Detection Methodology for Vacuum Circuit Breaker

2013 ◽  
Vol 321-324 ◽  
pp. 739-742
Author(s):  
Yu Huang Zheng
Keyword(s):  
Fault Diagnosis ◽  
Fault Detection ◽  
Dynamic Model ◽  
Test Data ◽  
High Speed ◽  
Circuit Breaker ◽  
Theoretical Data ◽  
Experimental Results ◽  
Model Based ◽  
Vacuum Circuit Breaker

Vacuum circuit breaker becomes more and more complicated, integrated, high-speed and intellectualized. To insure vacuum circuit breaker in its good conditions, the function of fault diagnosis gets more important than before in the process of repairing. This paper is addressed a model-based fault detection methodology for vacuum circuit breaker. At first, the dynamic model of vacuum circuit breaker is built. Secondly, DTW algorithm is introduced to compute the similarity value between the test data and the theoretical data. At last, the value comparison between the similarity and the threshold concludes whether a fault has occurred or the vacuum circuit breaker has potential hazardous effects. The experimental results show that this method is effective.

Extraction of the Geometric Features from the Vacuum Switching Arc Images

2013 ◽  
Vol 333-335 ◽  
pp. 860-863
Author(s):  
Hua Jun Dong ◽  
Wen Liang Dong ◽  
Kai Kang ◽  
Dao Shun Wang
Keyword(s):  
Power System ◽  
High Speed ◽  
Circuit Breaker ◽  
Morphological Characteristics ◽  
Vacuum Arc ◽  
Cmos Camera ◽  
Camera System ◽  
Vacuum Switch ◽  
Vacuum Circuit Breaker ◽  
Critical Components

Vacuum circuit breaker is one of the major critical components that controls and protects the power system. The breaking capability of the vacuum switch directly affects the safety of the power system. However, the breaking capability of the vacuum switch is determined by the morphological characteristics of the vacuum arc images. In this paper, in order to research the variation of the vacuum arc, a high-speed CMOS camera system is used to collect the vacuum arc images within a short gap (7mm), the morphological characteristics of the vacuum arc images are extracted based on the digital image processing. At last, the variation of the arc is analyzed.

The Robust Optimization Design for Breaking Spring of Spring Actuator of Vacuum Circuit Breaker

2011 ◽  
Vol 199-200 ◽  
pp. 1217-1222
Author(s):  
Bo Sun ◽  
Gang Chen ◽  
Xiao Ming Liu ◽  
Er Zhi Wang
Keyword(s):  
Robust Optimization ◽  
Optimization Design ◽  
Circuit Breaker ◽  
Structure Parameters ◽  
Stiffness Coefficient ◽  
Nonlinear Programming Problem ◽  
Spring Stiffness ◽  
Vacuum Circuit Breaker ◽  
Optimum Parameters ◽  
Robust Optimization Design

In this paper, the concept of robust optimization design for the breaking spring of spring actuator of vacuum circuit breaker is presented. The function, that is to minimize the error and maximal variations of spring stiffness coefficient related with structure parameters and its tolerances, is chosen as the objective function, and the acceptable region of the tolerances is formed by some constraints. The optimum parameters of the breaking spring are given by solving the nonlinear programming problem with multi-target and two-level optimization, and the optimization results are discussed.

scholarly journals Influence of Varying Gaps Between TMF Contacts on Constricted High Current Vacuum Arcs

2019 ◽  
Vol 6 (1) ◽  
pp. 103-106
Author(s):  
B. Kühn ◽  
B. Weber ◽  
D. Gentsch ◽  
M. Kurrat
Keyword(s):  
High Speed ◽  
Industrial Development ◽  
Circuit Breaker ◽  
Metal Vapor ◽  
High Speed Camera ◽  
High Current ◽  
Medium Voltage ◽  
Vacuum Circuit Breaker ◽  
Vacuum Test ◽  
Transversal Magnetic

The behavior of high current arcs in vacuum circuit breaker (VCB) is interesting for research and industrial development purpose which lead to further products. To improve the interruption capability of VCB, two approaches to control the arc have been proven successful. Applying transversal magnetic fields (TMF) on the arc is use for industrial VCB in medium voltage ranges. For greater gap distances the behavior of the arc is less thoroughly investigated. <br /> In this paper, the appearance of metal vapor arcs drawn by common TMF contacts in a vacuum-test-interrupter is investigated. An adapted drive mechanism enables to interrupt a fixed current with varying gaps from 5 to 25 mm and a constant opening time. Breaking operations with a 50 Hz current are observed with a high speed camera. With increasing gap distance a changed arc appearance can be observed. The goals of this work are to be understood as a feasibility study for optical evaluation methods for vacuum arcs under TMF.

Basic investigation of a high-speed vacuum circuit breaker and its vacuum arc characteristics

2006 ◽  
Vol 153 (1) ◽  
pp. 11 ◽  
Author(s):  
Y. Niwa ◽  
T. Funahashi ◽  
K. Yokokura ◽  
J. Matsuzaki ◽  
M. Homma ◽  
...  
Keyword(s):  
High Speed ◽  
Circuit Breaker ◽  
Vacuum Arc ◽  
Vacuum Circuit Breaker ◽  
Arc Characteristics ◽  
Basic Investigation
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