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图2.19(a)为按钮、接触器控制Y—△降压起动控制线路。线路的工作原理为:按下起动按钮SB1,KM1、KM2得电吸合,KM1自锁,电动机星形起动,待电动机转速接近额定转速时,按下SB2,KM2断电、KM3得电并自锁,电动机转换成三角形全压运行。
图2.19(b)为时间继电器自动控制Y—△降压起动控制线路,电路的工作原理为:按下起动按钮SB1,KM1、KM2得电吸合,电动机星形起动,同时KT也得电,经延时后时间继电器KT常闭触头打开,使得KM2断电,常开触头闭合,使得KM3得电闭合并自锁,电动机由星形切换成三角形正常运行。Telemecanique Inductive Sensor XS1L04NA310
DVT PCB601 Breakout Board w/Cable
Tyvek Coverall S-9636B-L - Large Box of 23
Fort Wayne Metals 304LV Stainless Steel Ribbon 0.002"x0
Montech Pneumatic Gripper GPP-1
PVC Machineable Round Stock 3 7/8" Long 3" Diameter *So
Maxon Motor 118752 DC Motor w/ 19:1 Gearhead
in Box Solo PV53 Ballistic-Look Rolling Catalog Cas
ELRA PH 26-78:1 DC Motor EURA
ELRA PH 26-181:1 DC Motor EURA
Ashcroft 8923 Glycerine Filled Pressure Gauge 0 to 60PS
Panasonic AG-188 VHS Movie Camera for Movie and Playbac
Parker Gold Ring 08F23O2140ACFGC?15 Pneumatic Solenoid V
X2 Extender HE20-1 for Fujinon Zoom Lens A7 C Mount 2x
Nerlite BL-50 010-652117 Series Blacklight R LED-D, 24V
Patlite KX-24T Strobe Light 100mm Blue 24VDC
Sony XC-75 CCD Video Camera 10.5-15VDC C Mount