【摘要】 针对通用型漏电保护器在二级漏电保护系统中 ,作为第一级保护器使用时存在的漏电流显示、报警漏电流阀值设定、动作时间设定、报警指示和读取报警漏电流历史数据等功能方面存在的不足,提出并设计了以PIC单片机为核心,由漏电检测电路、信号调理电路、数值显示电路、报警指示电路、按键电路和脱扣器线圈控制电路等组成的一种智能漏电保护器。更多还原

【Abstract】 The disadvantage of leakage current display,setting of alarm threshold value and action time,alarm display and history data inquiry of common leakage protector in second level leakage protection system used as first level protector,the PIC MCU-based intelligent leakage protector which consists of leakage detection circuit,signal regulation circuit,digital display circuit,alarm indication circuit,key circuit and release coil is designed.更多还原