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.
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一旦电机达到接近设计运行转速,离心开关开始动作,关断启动绕组与电网之间的连接。
Once the motor reaches near design operating speed, the centrifugal switch activates, opening the contacts and disconnecting the startup winding from the power source.
The paper introduced a microcomputer measuring system that takes measurement of the cen-triffugal switch breaking speed of single phase induction motor.