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| Research on Dynamic Characteristics of Closed Process for New Control and Protection Switch |
| SU Jin-zhou1,2,XU Zhi-hong1 |
1. University Fuzhou, Fuzhou, Fujian 350108, China
2. Fujian Inspection and Research Institute for Product Quality, Fuzhou, Fujian 350002, China |
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Abstract Based on the structure of KB0 series products, a new dynamic test system of control and protection switch based on single-chip microcomputer and high-speed image processing technology is designed on the basis of its dynamic mathematical model. The system can test the displacement of the core and the contact of the protective switch, and verify the accuracy of the displacement test under no-load condition. The dynamic characteristics of the new control and protection switch closing process are studied. The closing action time of the switch is tested under different working voltage, working frequency and closing phase angle. It has be done that studing on the contact bounce phenomenon model control and protection switch process, analyzing the reason of a bounce and two bounce generated, and exploring its core and closed at the end of the speed inner link mechanism. The optimum phase obtained is about 30 degrees through the test results of the data statistics and chart analysis, considering the time of action, contact bounce, terminal velocity and core at the end of the contact speed parameters.
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Received: 03 July 2017
Published: 11 February 2018
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Corresponding Authors:
Zhi-Hong XU
E-mail: 641936593@qq.com
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2018, Vol. 39 
