离心开关断开转速的测试  

How to Test the Off-state Rotational Speed of Centrifugal Switch Which in a Motor

作　　者：钟德刚[1] 吴根忠 南余荣 

机构地区：[1]浙江工业大学,杭州310014 [2]浙江省机电设计研究院,杭州310002

出　　处：《微特电机》1996年第5期34-36,41,共4页Small & Special Electrical Machines

摘　　要：提出一种以8031单片机为基础的单相电机离心开关断开转速测试系统。该系统根据离心开关断开瞬间电机电流的变化规律来判断并测出离心开关的断开转速。完全满足JB1010-81及JB7011-81单相异步电机技术条件和JB3219-83《分马力单相异步电机技术条件及试验方法》。以电机整机测试来代替离心开关单独元件测试的传统办法,从而能准确测出整机装配后离心开关的断开转速。本系统使用方便,适用于批量生产单相电机或潜水泵的出厂试验,同时还具有测试电机起动电流变化规律和正常测速的功能。In this paper,we introduce how to use 8031 singal-chip microcomputer to test the off -state rotational speed of centrifugal switch in a singal phase electrical machinery. The fundamental principal is to detect the sudden change of stator current while the centrifugal switch breaking off. It is in accord with JB1010 -81.JB7011-81 and JB3219-83 《The techinical regulation and test procedure for singal phase induction motors》. It can test off-state rotational speed exactly after the motor assembled. This system is convenient for use,suitable for on -line test and full scale test with singal phase induction motor or diving pumps.

关 键 词：微机 电机离心开关 

分 类 号：TM564[电气工程—电器]