It can control the starting, maintaining and opening of the AC contactor. asynchronous starting; 该磁力起动器利用单片机对交流接触器的起动过程、吸持过程、分断过程进行控制,提高了接触器的电寿命。
In the Y-△ reduced-voltage starting circuit, some defects are found in design of the main circuit. For example, the contactor main-contact is break down, melt is welded. These influence the reliability of the circuit. 常用的Y-△降压起动电路中主电路在设计上有一定的缺陷,经常发生接触器主触点烧毛、熔焊的故障,影响电路工作的可靠性。