摘要
根据三相剩余电流的特点,给出三相剩余电流保护原理电路模型和数学分析,对剩余电流动作保护器工作原理进行理论分析和论证,并对其进行仿真.理论分析及仿真结果表明,新型低压三相剩余电流动作保护器在电路无故障时不影响电路的运行;当发生单相人身触电时,在保护器完成切断电源之前能够使流过人体的电流很小,从而保护触电者的人身安全.
According to the characters of the three-phase residual current, put forward a relation between the principle circuit model and mathematical analysis about the residual current protection device, analyzed the working theory and researched the simulation. The theory analysis, simulation research results show that the new type of low-voltage three-phase residual current protection device don＇t trip switch when the circuit works naturally. However, when somebody gets an electric shock, before the residual current protection device shut off the electrical source, the current through the human＇ s body will be greatly reduced which keeps the person safety.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2008年第7期837-840,共4页
Journal of China Coal Society
关键词
剩余电流动作保护器
用电安全
谐振
residual current protection device
electricity safety
resonance
作者简介
张秀华（1975-），女，山东淄博人，工程师．E—mail：zhangxh750809@163．com
