Vacuum Switch Contact Position Detection Based on Labview

7th Annual International Conference on Materials Science and Engineering

Ma, Liting^1 ; Wang, Zhengqi^1 ; Su, Chong^1

Department of Mechanical Engineering, Dalian Jiaotong University, 794 Huanghe Road, Shahekou District, Dalian City, Liaoning Province, China^1

关键词: Breaking performance;    Detection efficiency;    LabVIEW virtual instrument;    Position detection;    Programming software;    Software and hardwares;    Vacuum interrupters;    Virtual instrument;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/562/1/012160/pdf
DOI  :  10.1088/1757-899X/562/1/012160

来源: IOP

【 摘 要 】

Arc shape of vacuum switch is one of the main influencing factors of the breaking performance of vacuum switch. The contact opening distance directly affects the development of arc shape. How to accurately detect the real-time position of the contact and calculate the contact distance is of great significance. Therefore, based on Labview virtual instrument technology, a software and hardware system for real-time position detection of contacts for vacuum interrupter is designed. The system collects the arc image during the vacuum switch opening process by high-speed camera, and then uses the virtual instrument development platform Labview as the programming software to process the arc image and analyze the edge features. Finally, the edge information detected is used for fitting, to realize pinpoint of the moving and static contacts. The experimental results show that the detection system can accurately detect the real-time position of the contact. It has the characteristics of high detection efficiency, stable operation and easy operation. The detection results provide technical support for analyzing the vacuum switch arc shape.