研究了一款具有对大功率电器进行限制作用的智能限电器系统，该限电器系统由CS5463芯片和互感传感器构成的交流电参数采集模块、STC12C5A60S2单片机处理器模块、GPRS 无线传输模块、LCD12864液晶显示模块、TNY255控制器构成的开关电源模块和报警电路等组成，实现了对电器负载类型的判断和识别、快速启动保护措施和报警、在撤去违规电器时自动恢复供电的功能，具有一定的实用性和创新性。%A kind of smart electrical protective system which possesses a function of limiting high-power electrical ap-pliances is studied in this paper. The electrical protective system is composed of the CS5463 chip, the alternating current pa-rameter acquisition module that is formed by mutual inductance sensor, the STC12C5A60S2 single chip processor module, GPRS wireless transmission module, the LCD12864 display module, the switching power supply module which is consisted of TNY255 controller, and the alarm circuit. The system realizes the function of the electric load type judging and identify-ing, and quickly launching protection measures and alarm. Besides, when the illegal electrical appliances are removed, the power supply can be automatically recovered. This system possesses a certain value of innovation and popularization.
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