摘要
提出了塑壳式断路器用电流互感器(CT)的软件修正方法。分析了小电流、无畸变和大电流时的CT波形,编写了Matlab程序对CT的特性曲线进行拟合,并给出了实测和拟合的曲线。修正结果表明,该方法精度和可靠性高,在实际应用中简化了设计。
The software revision method of current transformer （CT） for molded case circuit breaker was pre-sented. The CT curves when being low current, no distortion and high current were analyzed. The CT characteristic curves were imitated with Matlab program, and actually measurement and imitational curves were given. Revision result shows that this method with
high ,precision and reliability make design simple in practical application.
出处
《低压电器》
北大核心
2007年第11期49-52,共4页
Low Voltage Apparatus
关键词
塑壳断路器
电流互感器
特性修正
molded case circuit breaker （MCCB）
current transformer （CT）
characteristic revision
