22B-E1P7C104
22B-E1P7C104
22B-E1P7C104
三相异步电动机的转矩公式为:
S R2
M=C U12 公式 [2 ]
R22+(S X20)2
C:为常数同电机本身的特性有关; U1 :输入电压 ;
R2 :转子电阻; X20 :转子漏感抗; S:转差率
可以知道M∝U12 转矩与电源电压的平方成正比,设正常输入电压时负载转矩为M2 ,电压下降使电磁转矩M下降很多;由于M2不变,所以M小于M2平衡关系受到破坏,导致电动机转速的下降,转差率S上升;它又引起转子电压平衡方程式的变化,使转子电流I2上升。也就是定子电流I1随之增加(由变压器关系可以知道);同时I2增加也是电动机轴上送出的转矩M又回升,直到与M2相等为止。这时电动机转速又趋于新的稳定值。
6ES5731-1BD20
B description not available
B
B 6ES5732-1BD20
B SIMATIC S5 732-1 CONNECTING CABLE FROM 512
B
B 6ES5732-6BD20
B description not available
B
B 6ES5733-6BD20
B description not available
B
B 6ES5733-8CC50
B SIMATIC S5 733-8 CABLE OPTIC FIBER PLASTIC
B
B 6ES5734-0BD20
B description not available
B
B 6ES5734-1BD20
B description not available
B
B 6ES5735-1BD20
B description not available
B
B 6ES5735-1BF00
B description not available
B
B 6ES5735-2BD20
B description not available
B
B 6ES5736-1BD20
B description not available
B
B 6ES5741-0AA21
B description not available
B
B 6ES5741-0AB21
B description not available
B
B 6ES5741-0AB31
B description not available
B
B 6ES5741-0AC21
B casing & terminal block
B
B 6ES5750-2AA31
B description not available
B
B 6ES5751-3AA12
B description not available
B
B 6ES5752-0AA12
B 752 interface submodule for CP524 / CP544, 20mA current loop (TTY)
B
B 6ES5752-0AA22
B 752 interface submodule for CP524 / CP544, V24 / V28 (RS232C)
B
B 6ES5752-0AA23
B description not available
B
B 6ES5752-0AA42
B description not available
B
B 6ES5752-0AA43
B 752 interface submodule for CP524 / CP544+D834, (RS422-A / RS485)
B
B 6ES5752-0AA52
B description not available
B
B 6ES5752-0AA53
B description not available
B
B 6ES5752-0LA12
B interface module, 20mA module
B
B 6ES5752-0LA22
B interface module, V24 module
B
B 6ES5752-0LA42
B interface module, RS422-A / RS485 module
B
B 6ES5752-0LA52
B interface module, programming device module
B
B 6ES5752-0LA62
B interface module, SINEC L1 module
B
B 6ES5755-0AA11
B description not available
B
B 6ES5755-0AA12
B description not available
B
B 6ES5755-0AA13
B S5 NET busscoupler
B
B 6ES5755-3AA11
B terminator resistor, coax 50 ohm,Sinec H1
B
B 6ES5755-4AA11
B coaxial connector - ethernet
B
B 6ES5755-8AA11
B description not available
B
B 6ES5756-0AA11
B description not available
B
B 6ES5758-0AA11
B MODEM
B
B 6ES5760-0AA11
B terminator for IM310
B