消防卷帘门电机相位自动调节及保护系统

摘要

利用继电器及电容等简单元件设计的一个电机电源相序自动调节装置，保证电源以顺向的固定模式输向电机。%Relays and capacitors and some other simple elements are used to design an automatic regulating device for motor phases,which can make current flow to the motor in a direction-fixed mode.