22B-E1P7C104
22B-E1P7C104
22B-E1P7C104
三相異步電動機的轉矩公式為:
S R2
M=C U12 公式 [2 ]
R22+(S X20)2
C:為常數同電機本身的特性有關; U1 :輸入電壓 ;
R2 :轉子電阻; X20 :轉子漏感抗; S:轉差率
可以知道M∝U12 轉矩與電源電壓的平方成正比,設正常輸入電壓時負載轉矩為M2 ,電壓下降使電磁轉矩M下降很多;由于M2不變,所以M小于M2平衡關系受到破壞,導致電動機轉速的下降,轉差率S上升;它又引起轉子電壓平衡方程式的變化,使轉子電流I2上升。也就是定子電流I1隨之增加(由變壓器關系可以知道);同時I2增加也是電動機軸上送出的轉矩M又回升,直到與M2相等為止。這時電動機轉速又趨于新的穩定值。
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