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Abstract
Smart meter represents the development direction of energy-saving smart grid in the future. The load switch, one of the core parts of smart meter, should be of high reliability, safety and endurance capability of limit short-circuit current. For this reason, this paper discusses the quick simulation of relationship between attraction and counterforce of load switch without iteration, establishes dual response surface model of attraction and counterforce and optimizes the design scheme of load switch for charge control smart meter, thus increasing electromagnetic attraction and spring counterforce. In this way, this paper puts forward a method to improve the withstand capacity of limit short-circuit current.
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Details
1 North China Electric Power Research Institute (NCEPRI), China.; Electric Power Institute of State Grid Jibei Electric Power Company, Beijing, China.
2 Henan Xuji Instrument Co., Ltd., Xuchang, China.
3 Metering Center of Hunan Electric Power Company
4 China Electric Power Research Institute