Once the motor reaches near design operating speed, the centrifugalswitch activates, opening the contacts and disconnecting the startup winding from the power source.
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。
2
In this paper, we introduce how to use 8031 singal-chip microcomputer to test the off -state rotational speed of centrifugalswitch in a singal phase electrical machinery.