Modeling and dynamic simulation of operating mechanism of high voltage circuit breaker with a hydraulic buffer

2021 ◽  
Author(s):  
J. Zhang ◽  
L. Wang ◽  
G. Liu ◽  
T. Zhang
Keyword(s):  
Dynamic Simulation ◽  
High Voltage ◽  
Circuit Breaker ◽  
Operating Mechanism ◽  
High Voltage Circuit Breaker

scholarly journals A Study on the Dynamic Responses and Joints Clearance Optimization of the Planar Operating Mechanism of High-Voltage Circuit Breaker

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Xiaofeng Li ◽  
Shijing Wu ◽  
Xiaoyong Li ◽  
Deng Zhao ◽  
Qiaoquan Li
Keyword(s):  
Mechanical System ◽  
High Voltage ◽  
Reaction Force ◽  
Circuit Breaker ◽  
Dynamic Responses ◽  
Operating Mechanism ◽  
Negative Effects ◽  
Flexible Links ◽  
High Voltage Circuit Breaker ◽  
The Operating Mechanism

The operating mechanism is responsible for a large part of machinery faults of high-voltage circuit breaker, which plays a crucial role in the reliability of the power grid. It consists of multiple flexible links connected by revolute joints with inevitable clearances between adjacent links. Flexible links and joints clearance have negative effects on the performance of the whole mechanical system. In this study, the dynamic simulation model of the multiple links articulated operating mechanism is built, and its validity is testified by operation experiment. Then, numerical simulation investigations are implemented to analyze the effects of flexible links and joints clearance on the dynamic responses of the operating mechanism. The results demonstrate that both flexible links and joints clearance exert associated negative effects on the mechanism performance. Furthermore, aimed at improving the dynamic characteristics of the operating mechanism, the joints clearance sizes are selected as design variables, and correlated optimization works are performed. After that, the acceleration and reaction force curves of the mechanical system become smoother, and the amplitudes of the two curves are reduced distinctly.

scholarly journals Mechanical Condition Identification and Prediction of Spring Operating Mechanism of High Voltage Circuit Breaker

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 210328-210338
Author(s):  
Yakui Liu ◽  
Guogang Zhang ◽  
Chenchen Zhao ◽  
Sheng Lei ◽  
Hao Qin ◽  
...  
Keyword(s):  
High Voltage ◽  
Circuit Breaker ◽  
Operating Mechanism ◽  
Mechanical Condition ◽  
High Voltage Circuit Breaker
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