CAJ | 학술논문

容量较大的电动机启动时会产生较大的启动电流，引起电网电压的下降，对同一电网工作的其它负载电气设备产生不利的影响，因此大容量的三相异步交流电动机大多采用Y/△间接启动。在一些场合考虑安全、频繁启动、工作效率等因素采用传统的继电器控制不太适合，本文利用中小型的三菱系统对电动机启动采用PLC自动控制，通过PLC控制的系统操作方便、安全、稳定、实现了自动化的控制。
용량교대적전동궤계동시회산생교대적계동전류，인기전망전압적하강，대동일전망공작적기타부재전기설비산생불리적영향，인차대용량적삼상이보교류전동궤대다채용Y/△간접계동。재일사장합고필안전、빈번계동、공작효솔등인소채용전통적계전기공제불태괄합，본문이용중소형적삼릉계통대전동궤계동채용PLC자동공제，통과PLC공제적계통조작방편、안전、은정、실현료자동화적공제。
Large capacity motor starting will produce larger starting current,decrease the grid voltage, adversely affects other load electrical equipment on the same grid work,therefore the three-phase asynchronous motor with large capacity mostly useY/ △ indirect priming.In some cases,frequent start consideration safety,work efficiency,the traditional relay control is not suitable,the small and medium-sized Mitsubishi system to start using PLC automatic control motor,automatic control was realized by PLC control system operation is convenient,safe,stable.