三相异步电动机的降压启动控制线路 教学课件.ppt

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1、三相异步电动机的降压启动控制线路_教学-PPT课件,三相异步电动机的降压启动控制线路_教学-PPT课件,M3,L1L2L3,FU1,FU2,KM1,KM2,FR,SB1,SB2,KM1,KM2,KM1,KM2,FR,U,V,W,QS,KM2,KT,KM1,2.时间继电器控制串联电阻降压启动,KT,ML1L2L3FU1FU2KM1KM2FRSB1SB2KM1,L1L2L3,FU1,FU2,KM1,KM2,SB1,SB2,KM1,KM2,KM1,KM2,U,V,W,QS,KM2,KT,KM1,合上电源开关QS,M3,FR,FR,2.时间继电器控制串联电阻降压启动,KT,L1L2L3FU1FU2KM

2、1KM2SB1SB2KM1KM2,L1L2L3,FU1,FU2,KM1,KM2,SB1,SB2,KM1,KM2,KM1,KM2,U,V,W,QS,KM2,KT,KM1,降压启动:按下SB1KM1线圈得电,M3,FR,FR,2.时间继电器控制串联电阻降压启动,KT,L1L2L3FU1FU2KM1KM2SB1SB2KM1KM2,L1L2L3,FU1,FU2,KM1,KM2,SB1,SB2,KM1,KM2,KM1,KM2,U,V,W,QS,KM2,KT,KM1,松开SB1,继续电动机降压启动,M3,FR,FR,2.时间继电器控制串联电阻降压启动,KT,L1L2L3FU1FU2KM1KM2SB1SB2

3、KM1KM2,L1L2L3,FU1,FU2,KM1,KM2,SB1,SB2,KM1,KM2,KM1,KM2,U,V,W,QS,KM2,KT,KM1,KT延时闭合,KM2线圈得电,M3,FR,FR,2.时间继电器控制串联电阻降压启动,KT,L1L2L3FU1FU2KM1KM2SB1SB2KM1KM2,L1L2L3,FU1,FU2,KM1,KM2,SB1,SB2,KM1,KM2,KM1,KM2,U,V,W,QS,KM2,KT,KM1,KM2 联锁触头断开,对KM1联锁,KM1线圈失电,M3,FR,FR,2.时间继电器控制串联电阻降压启动,KT,L1L2L3FU1FU2KM1KM2SB1SB2KM1

4、KM2,L1L2L3,FU1,FU2,KM1,KM2,SB1,SB2,KM1,KM2,KM1,KM2,U,V,W,QS,KM2,KT,KM1,KM2 自锁触头闭合,自锁KM2主触头闭合,电阻被短路,M3,FR,FR,2.时间继电器控制串联电阻降压启动,KT,L1L2L3FU1FU2KM1KM2SB1SB2KM1KM2,L1L2L3,FU1,FU2,KM1,KM2,SB1,SB2,KM1,KM2,KM1,KM2,U,V,W,QS,KM2,KT,KM1,KM1自锁触头闭合,自锁KM1主触头闭合,电动机降压启动KM1动合辅助触头闭合,KT线圈得电,M3,FR,FR,2.时间继电器控制串联电阻降压启动

5、,KT,L1L2L3FU1FU2KM1KM2SB1SB2KM1KM2,L1L2L3,FU1,FU2,KM1,KM2,SB1,SB2,KM1,KM2,KM1,KM2,U,V,W,QS,KM2,KT,KM1,KM1自锁触头断开,解除自锁KM1主触头断开，电动机全压运行KM1动合辅助触头断开,KT线圈失电,KT延时闭合触头瞬时断开,M3,FR,FR,2.时间继电器控制串联电阻降压启动,KT,L1L2L3FU1FU2KM1KM2SB1SB2KM1KM2,L1L2L3,FU1,FU2,KM1,KM2,SB1,SB2,KM1,KM2,KM1,KM2,U,V,W,QS,KM2,KT,KM1,停：按下SB2,

6、M3,FR,FR,2.时间继电器控制串联电阻降压启动,KT,L1L2L3FU1FU2KM1KM2SB1SB2KM1KM2,二、自耦变压器降压启动控制线路,自耦变压器降压启动：在电动机启动时利用自耦变压器来降低加在电动机定子绕组上的启动电压。待电动机启动后，再使电动机与自耦变压器脱离，从而在全压下正常运行。,二、自耦变压器降压启动控制线路 自耦变压器降压启动：在电,U1,V1,W1,KM3,SB2,KM1,KT,KM2,SB1,KM3,L1L2L3,FU1,FU2,FR,KM3,QS,KM2,KT,KM1,KT,KM1,KM2,KM3,KM1,TM,U1V1W1KM3SB2KM1KTKM2SB1

7、KM3L1L2,U1,V1,W1,KM3,SB2,KM1,KT,KM2,SB1,KM3,L1L2L3,FU1,FU2,KM3,QS,KM2,KT,KM1,KM1,KM2,KM3,KM1,合上电源开关QS,TM,FR,KT,U1V1W1KM3SB2KM1KTKM2SB1KM3L1L2,U1,V1,W1,KM3,SB2,KM1,KT,KM2,SB1,KM3,L1L2L3,FU1,FU2,KM3,QS,KM2,KT,KM1,KM1,KM2,KM3,KM1,按SB2 KM1线圈得电,TM,FR,KT,U1V1W1KM3SB2KM1KTKM2SB1KM3L1L2,U1,V1,W1,KM3,SB2,KM1

8、,KT,KM2,SB1,KM3,L1L2L3,FU1,FU2,KM3,QS,KM2,KT,KM1,KM1,KM2,KM3,KM1,KM1联锁触头分断，对KM3联锁，KM1主触头闭合，自耦变压器TM联结成星形KM1动合辅助触头闭合，KM2线圈得电，KT线圈得电,TM,FR,KT,U1V1W1KM3SB2KM1KTKM2SB1KM3L1L2,U1,V1,W1,KM3,SB2,KM1,KT,KM2,SB1,KM3,L1L2L3,FU1,FU2,KM3,QS,KM2,KT,KM1,KM1,KM2,KM3,KM1,KM2主触头闭合，电动机M接入电机降压启动KM2动合辅助触头闭合，自锁，松开SB2,TM,

9、FR,KT,U1V1W1KM3SB2KM1KTKM2SB1KM3L1L2,U1,V1,W1,KM3,SB2,KM1,KT,KM2,SB1,KM3,L1L2L3,FU1,FU2,KM3,QS,KM2,KT,KM1,KM1,KM2,KM3,KM1,KT延时断开的动断触头延时分断KM1线圈失电KT延时闭合的动合触头延时闭合,TM,FR,KT,U1V1W1KM3SB2KM1KTKM2SB1KM3L1L2,U1,V1,W1,KM3,SB2,KM1,KT,KM2,SB1,KM3,L1L2L3,FU1,FU2,KM3,QS,KM2,KT,KM1,KM1,KM2,KM3,KM1,KM1线圈失电KM1动合触头分

10、断KM1主触头分断 电动机M失电惯性运行KM1联锁触头闭合,TM,FR,KT,U1V1W1KM3SB2KM1KTKM2SB1KM3L1L2,U1,V1,W1,KM3,SB2,KM1,KT,KM2,SB1,KM3,L1L2L3,FU1,FU2,KM3,QS,KM2,KT,KM1,KM1,KM2,KM3,KM1,KM3线圈得电KM3 自锁触头闭合 ，自锁M3主触头闭合 电动机M全压运行,TM,FR,KT,U1V1W1KM3SB2KM1KTKM2SB1KM3L1L2,U1,V1,W1,KM3,SB2,KM1,KT,KM2,SB1,KM3,L1L2L3,FU1,FU2,KM3,QS,KM2,KT,KM

11、1,KM1,KM2,KM3,KM1,KM3联锁触头分断 KM2线圈失电KM2主触头分断KM2自锁触头分断,TM,FR,KT,U1V1W1KM3SB2KM1KTKM2SB1KM3L1L2,U1,V1,W1,KM3,SB2,KM1,KT,KM2,SB1,KM3,L1L2L3,FU1,FU2,KM3,QS,KM2,KT,KM1,KM1,KM2,KM3,KM1,KT延时断开的动断触头瞬时闭合KT延时闭合的动合触头瞬时断开,TM,FR,KT,U1V1W1KM3SB2KM1KTKM2SB1KM3L1L2,U1,V1,W1,KM3,SB2,KM1,KT,KM2,SB1,KM3,L1L2L3,FU1,FU2,

12、KM3,QS,KM2,KT,KM1,KM1,KM2,KM3,KM1,停：按SB1,TM,FR,KT,U1V1W1KM3SB2KM1KTKM2SB1KM3L1L2,电动机启动时，把电动机的定子绕组接成星形，电动机定子绕组电压低于电源电压起动，启动即将完毕时再恢复成三角形，电动机便在额定电压下正常运行。,三、Y降压启动控制线路,电动机启动时，把电动机的定子绕组接成三、Y降压启动控,L1L2L3,FU1,FU2,KM,KM,SB1,SB2,KM,U,V,W,QS,KMY,KM,KMY,KM,KMY,KT,KM,电路组成分析,KMY,KT,M3,FR,FR,2. 时间继电器自动控制Y降压启动控制线路,

13、Y-降压启动控制线路,L1L2L3FU1FU2KMKMSB1SB2KMUVWQS,L1L2L3,FU1,FU2,KM,KM,SB1,SB2,KM,U,V,W,QS,KMY,KM,KMY,KM,KMY,KT,KM,合上电源开关QS,KMY,KT,M3,FR,FR,2. 时间继电器自动控制Y降压启动控制线路,Y-降压启动控制线路,L1L2L3FU1FU2KMKMSB1SB2KMUVWQS,L1L2L3,FU1,FU2,KM,KM,SB1,SB2,KM,U,V,W,QS,KMY,KM,KMY,KM,KMY,KT,KM,降压启动:按下SB1KT线圈得电KMY线圈得电,KMY,KT,M3,FR,FR,2

14、. 时间继电器自动控制Y降压启动控制线路,Y-降压启动控制线路,L1L2L3FU1FU2KMKMSB1SB2KMUVWQS,L1L2L3,FU1,FU2,KM,KM,SB1,SB2,KM,U,V,W,QS,KMY,KM,KMY,KM,KMY,KT,KM,KMY主触头闭合KMY动合辅助触头闭合KMY动断辅助触头断开KM自锁触头闭合KM主触头闭合电动机降压启动,KMY,KT,M3,FR,FR,2. 时间继电器自动控制Y降压启动控制线路,Y-降压启动控制线路,L1L2L3FU1FU2KMKMSB1SB2KMUVWQS,L1L2L3,FU1,FU2,KM,KM,SB1,SB2,KM,U,V,W,QS,

15、KMY,KM,KMY,KM,KMY,KT,KM,松开SB1电动机继续降压启动,KMY,KT,M3,FR,FR,2. 时间继电器自动控制Y降压启动控制线路,Y-降压启动控制线路,L1L2L3FU1FU2KMKMSB1SB2KMUVWQS,L1L2L3,FU1,FU2,KM,KM,SB1,SB2,KM,U,V,W,QS,KMY,KM,KMY,KM,KMY,KT,KM,KT延时断开的动断触头延时分断KMY线圈失电KMY主触头断开KMY动合辅助触头断开KMY动断辅助触头闭合KM 主触头闭合KM 动断辅助触头断开KT线圈失电电动机全压运行,KMY,KT,M3,FR,FR,2. 时间继电器自动控制Y降压启

16、动控制线路,Y-降压启动控制线路,L1L2L3FU1FU2KMKMSB1SB2KMUVWQS,L1L2L3,FU1,FU2,KM,KM,SB1,SB2,KM,U,V,W,QS,KMY,KM,KMY,KM,KMY,KT,KM,停:按下SB2,KMY,KT,M3,FR,FR,2. 时间继电器自动控制Y降压启动控制线路,Y-降压启动控制线路,L1L2L3FU1FU2KMKMSB1SB2KMUVWQS,KT,KM2,SB2,KM3,KM1,KT,SB1,KM2,延边三角形降压启动控制原理,L1L2L3,FU1,FU2,FR,KM1,KM2,U1,V1,W1,QS,KM1,KM2,W3,U3,V3,W2

17、,U2,V2,KM3,KT,KM3,KM3,电路组成分析,M3,KTKM2SB2KM3KM1KTSB1KM2延边三角形降压启,KT,KM2,SB2,KM3,KM1,KT,SB1,KM2,L1L2L3,FU1,FU2,FR,KM1,KM2,U1,V1,W1,QS,KM1,KM2,W3,U3,V3,W2,U2,V2,KM3,KT,KM3,KM3,合上电源开关QS,延边三角形降压启动控制原理,M3,KTKM2SB2KM3KM1KTSB1KM2L1L2L3FU,KT,KM2,SB2,KM3,KM1,KT,SB1,KM2,L1L2L3,FR,KM1,KM2,U1,V1,W1,KM1,KM2,W3,U3,

18、V3,W2,U2,V2,KM3,KT,KM3,KM3,按SB2 KM3线圈得电,FU1,FU2,QS,延边三角形降压启动控制原理,M3,KTKM2SB2KM3KM1KTSB1KM2L1L2L3FR,KT,KM2,SB2,KM3,KM1,KT,SB1,KM2,L1L2L3,FR,KM1,KM2,U1,V1,W1,KM1,KM2,W3,U3,V3,W2,U2,V2,KM3,KT,KM3,KM3,KM3联锁触头分断，对KM2联锁KM3主触头闭合 联结成延边三角形 KM 动合辅助触头闭合,FU1,FU2,QS,延边三角形降压启动控制原理,M3,KTKM2SB2KM3KM1KTSB1KM2L1L2L3F

19、R,KT,KM2,SB2,KM3,KM1,KT,SB1,KM2,L1L2L3,FR,KM1,KM2,U1,V1,W1,KM1,KM2,W3,U3,V3,W2,U2,V2,KM3,KT,KM3,KM3,KM1线圈得电KM1自锁触头闭合,自锁,松开SB2 KM1主触头闭合,电动机延边三角形降压启动, KT线圈得电,FU1,FU2,QS,延边三角形降压启动控制原理,M3,KTKM2SB2KM3KM1KTSB1KM2L1L2L3FR,KT,KM2,SB2,KM3,KM1,KT,SB1,KM2,L1L2L3,FR,KM1,KM2,U1,V1,W1,KM1,KM2,W3,U3,V3,W2,U2,V2,KM

20、3,KT,KM3,KT线圈得电KT延时断开的动断触头延时分断 , KM3线圈失电 KT延时闭合的动合触头延时闭合， KM2线圈得电,FU1,FU2,QS,延边三角形降压启动控制原理,M3,KTKM2SB2KM3KM1KTSB1KM2L1L2L3FR,KT,KM2,SB2,KM3,KM1,KT,SB1,KM2,L1L2L3,FR,KM1,KM2,U1,V1,W1,KM1,KM2,W3,U3,V3,W2,U2,V2,KM3,KT,KM3,KM3线圈失电 KM3动合触头分断， KM3主触头分断，电动机失电惯性运行KM2线圈得电KM2自锁触头闭合，自锁,FU1,FU2,QS,延边三角形降压启动控制原理

21、,M3,KTKM2SB2KM3KM1KTSB1KM2L1L2L3FR,KT,KM2,SB2,KM3,KM1,KT,SB1,KM2,L1L2L3,FR,KM1,KM2,U1,V1,W1,KM1,KM2,W3,U3,V3,W2,U2,V2,KM3,KT,KM3,KM2主触头闭合，电动机全电运行 KM2联锁触头断开，KT线圈失电,KT触头复位,KM3,FU1,FU2,QS,延边三角形降压启动控制原理,M3,KTKM2SB2KM3KM1KTSB1KM2L1L2L3FR,KT,KM2,SB2,KM3,KM1,KT,SB1,KM2,L1L2L3,FU1,FU2,FR,KM1,KM2,U1,V1,W1,QS,KM1,KM2,W3,U3,V3,W2,U2,V2,KM3,KT,KM3,KM3,停: 按下SB1,延边三角形降压启动控制原理,M3,KTKM2SB2KM3KM1KTSB1KM2L1L2L3FU,感谢聆听,感谢聆听,