6ES7290-6AA20-0XA0 卡件就亿佳

三相绕线形异步电动机转子中有三相绕组，可以通过滑环和电刷串接外加电阻。适当增加转子串接电阻，可以减小启动电流并电动机的启动转矩。按照绕线形异步电动机启动过程中转子串接装置的不同，有串电阻启动和串频敏电阻器启动两种方法。

缓冲启动器（motor soft starter）是配合交流电动机使用的设备，在马达启动时可以暂时减少其负载及力矩，也降低启动时的涌浪电流。因此可以减少启动时马达及轴上的机械应力，也减少配电系统及电缆线上的电磁应力，延长系统的寿命。

马达缓冲启动器有机械式的、电子式的，也有混合式的 

1)机械式的马达缓冲启动器包括了离合器以及不同种类，可以传递力矩的联轴器（例如液力耦合器、磁力耦合器或是用金属球等），类似扭矩限制器。

2)电子式的马达缓冲启动器是可以用降低输入电压或是电流来暂时降低力矩的设备，也可以是暂时性调整马达电路接线方式的设备。

感应马达在启动时的突入电流会是额定电流的7至10倍，启动转矩会是额定电流的三倍。增加的力矩会使机械产生突然的应力，会减少设备的寿命。而且高突入电流也会给电源带来应力，可能造成电压骤降，因此会让一些敏感设备的寿命下降。

缓冲启动器可以避免这些副作用，已发展出许多不同控制的方式，有些是控制电压，有时则是用像离合器之类的机械设备。缓冲启动器的型录会列出其个自的电流及转矩特性。 若是高突入转矩，会使设备有高机械应力，会增加维修成本及磨损。而高电流及高电流峰值则会电费（依电流峰值计算），而且会增加电源及发电机需要提供的电力。

缓冲启动器在马达启动过程中，会持续控制马达的电压。因此，可以调整马达，设法符合机械的特性，可以让机械平顺的加速，可以延长设备寿命、提升运作性能，而且可以让运作比较平顺。电子式的缓冲启动器可以是控制马达电压及电流的固态电子器件设备。缓冲启动器可以串接在电源和马达之间，或是连接到在Δ接马达的Δ回路内，控制每一个绕组的电压。固态电子缓冲启动器可以控制马达的一相或是多相，以达到缓冲启动的效果。一般而言，电压是由反并联连接的硅控整流器（晶闸管），不过在一些三相控制的场合内，控制元件可以改为反并联连接的硅控整流器及二极管。

另一种限制启动电流的方式是串联电抗器。若使用无铁心的电抗器作为串联电抗器。可以设计高效且可靠缓冲启动器，可以适合功率/电压从25 kW 415 V到30 MW 11 kV的各种三相马达。在泵、压缩机、风扇等应用中，常常使用无铁心电抗器的缓冲启动器。若需要高启动转矩的应用，会使用其他的方法。

  YOKOGAWA DCS EB501-10

1PC       YOKOGAWA DCS NC4* B Nest Common Card

1PC       YOKOGAWA DCS PS32*A

1PC       YOKOGAWA DCS SB401-10 S1

1PC       YOKOGAWA DCS SI11*B

1PC       YOKOGAWA DCS SI11*B YIWX

1PC       YOKOGAWA DCS ST6 *A Multipoint Status Input

1PC       YOKOGAWA DCS ST6 *A MULTIPOINT STATUS INPUT 2RTJ

1PC       Yokogawa DX112-1-2 6 channels Digital Recorder

1PC       YOKOGAWA EA1*A

1PC       YOKOGAWA ECO*A / EC0*A

1PC       YOKOGAWA ER5*B RTD input card

1PC       YOKOGAWA ER5*B RTD INPUT CARD AF65

1PC       YOKOGAWA F3WD64-3P PLC

1PC       YOKOGAWA PLC module F3YD14 F3YD14-5A

1PC       YOKOGAWA PLC module F3YD64-1F

1PC       YOKOGAWA Yokogawa ADM11

1PC       YOKOGAWA Yokogawa EJA210A-DHSG4F5B-90NN Transmitter

1pc of YOKOGAWA PS-033-0101 Power Supply Circuit Board

1PC PW482-10 YOKOGAWA DCS 60 days warranty

1PC sed Yokogawa CPU F3LC11

1pc UR10000 436106 YOKOGAWA Chart Recorder

1pc UR10000 436106 YOKOGAWA Chart Recorder PLC S5

1PC UR10000 436106 YOKOGAWA Chart Recorder xhg12

1PC        F3SP76-7S YOKOGAWA CPU

1PC        F3SP76-7S YOKOGAWA CPU 0RV0

1PC        YOKOGAWA AAP135-S00

1PC        YOKOGAWA AAT145-S00

1PC        YOKOGAWA ADM12

1PC        YOKOGAWA ADM12 #ZL02

1PC        YOKOGAWA ADM52

1PC        YOKOGAWA ADM52 #ZL02

1PC        YOKOGAWA ADM52C

1PC        YOKOGAWA ADM52C #ZL02

1PC        YOKOGAWA AMM32

1PC        YOKOGAWA AMM32 #ZL02

1PC        YOKOGAWA AMM32T

1PC        YOKOGAWA AMM32T #ZL02

1PC        YOKOGAWA AMN11

1PC        YOKOGAWA AMN11 #ZL02

1PC        YOKOGAWA AMN31

1PC        YOKOGAWA AMN31 #ZL02

1PC        YOKOGAWA AMN32

1PC        YOKOGAWA AMN32 #ZL02

1PC        YOKOGAWA AS E9775BB-00

1PC        YOKOGAWA AS E9775BB-00 #ZL02

1PC        YOKOGAWA AS S9981DE-01+ANR10D-420

1PC        YOKOGAWA AS S9981DE-01+ANR10D-420 937V

1PC        Yokogawa ATD5D-00 connector

1PC        Yokogawa ATD5D-00 connector #ZL02

1PC        yokogawa bcm PSBCMNBN

1PC        YOKOGAWA BCM PSBCMNBN EG35

1PC        YOKOGAWA CP11*C #ZL02

1PC        YOKOGAWA CP21*A

1PC        YOKOGAWA CP701 #ZL02

1PC        Yokogawa CPU F3BU09

1PC        YOKOGAWA CPU F3BU09 HL2R

1PC        Yokogawa CPU F3LC11

1PC        YOKOGAWA CPU F3LC11 UKKK

1PC        Yokogawa CPU F3NC11

1PC        YOKOGAWA CPU F3NC11 2BBI

1PC        Yokogawa CPU F3YD64

1PC        YOKOGAWA CPU F3YD64 IIF2

1PC        YOKOGAWA DCS AAI143-S00+ATK4A-00 #ZL02

1PC        Yokogawa DCS AAM21

1PC        Yokogawa DCS AAM50

1PC        YOKOGAWA DCS AD5*D #ZL02

1PC        Yokogawa DCS AMN11 #ZL02

1PC        Yokogawa DCS AS E9775BB-00

1PC        YOKOGAWA DCS AS S9981DE-01

1PC        YOKOGAWA DCS AS S9981DE-01 #ZL02

1PC        Yokogawa DCS CP81B*C (CP81B*C) MOPS - MOPL Processor Card #ZL02

1PC        Yokogawa DCS CTM-CS-AIP811

1PC        Yokogawa dcs DP85*A

1PC        Yokogawa dcs DP85*A #ZL02

1PC        YOKOGAWA DCS DP85*A D5IR

1PC        YOKOGAWA DCS EH1*A #ZL02

1PC        YOKOGAWA DCS EP3*A

1PC        YOKOGAWA DCS EP3*A

1PC        YOKOGAWA DCS EP3*A #ZL02

1PC        YOKOGAWA DCS EP3*A I1QL

1PC        YOKOGAWA DCS ESB BUS, ADDRESS front connector

1PC        YOKOGAWA DCS ESB BUS, ADDRESS front connector #ZL02

1PC        Yokogawa DCS ESB BUS,ADDRESS PLC

1PC        Yokogawa DCS I/O cards 16 point switch output card ADM51 #ZL02

1PC        Yokogawa dcs LC81*B RL-Bus Interface Card

1PC        Yokogawa dcs LC81*B RL-Bus Interface Card #ZL02

1PC        YOKOGAWA DCS LC81*B RL-BUS INTERFACE CARD V1LP

1PC        Yokogawa dcs M-1181-3

1PC        Yokogawa DCS M-1181-3 #ZL02

1PC        YOKOGAWA DCS PW482-10

1PC        Yokogawa DCS PW482-10 #ZL02

1PC        Yokogawa DCS rack AS S985 / AS-S985

1PC        Yokogawa dcs RM81*A MOPS - MOPL Memory Card

1PC        YOKOGAWA DCS RM81*A MOPS - MOPL MEMORY CARD WLJB

1PC        Yokogawa dcs S9943AL

1PC        Yokogawa DCS S9943AL #ZL02

1PC        YOKOGAWA DCS S9943AL 6ZK8

1PC        Yokogawa DCS S9970DB-02 / S9971DB

1PC        Yokogawa DCS S9970DB-02 / S9971DB #ZL02

1PC        YOKOGAWA DX11*A #ZL02

1PC        Yokogawa DX112-1-2 DAQSTATION Digital Recorder 100-240 VAC #ZL02

1PC        YOKOGAWA EA1*A #ZL02

1PC        Yokogawa empty module cover

1PC        YOKOGAWA ER5*B RTD input card

1PC        YOKOGAWA F3CU04-1S

1PC        Yokogawa F3NC02-0N-Z01

1PC        Yokogawa F3NC04-0Z

1PC        Yokogawa F3NC04-0Z

1PC        Yokogawa F3NC04-0Z

1PC        Yokogawa F3NC04-0Z 153K

1PC        YOKOGAWA F3NC04-0Z NGCQ

1PC        Yokogawa F3NC11-0N

1PC        Yokogawa F3NC11-0N

1PC        Yokogawa F3NC11-0N

1PC        Yokogawa F3NC11-0N 0GKV

1PC        YOKOGAWA F3NC11-0N STGZ

1PC        Yokogawa F3PP08-2N

1PC        Yokogawa F3PP08-2N

1PC        Yokogawa F3PP08-2N

1PC        YOKOGAWA F3PP08-2N CHXA

1PC        YOKOGAWA F3PP08-2N TKC3

1PC        YOKOGAWA F3PU20 F3LR01 F3XD32 F3YD64 F3BU13 #ZL02

1PC        Yokogawa F3RZ81-0N

1PC        Yokogawa F3RZ81-0N

1PC        Yokogawa F3RZ81-0N

1PC        YOKOGAWA F3RZ81-0N 194Q

1PC        YOKOGAWA F3RZ81-0N PLC

1PC        Yokogawa F3RZ91-0F / Z02

1PC        Yokogawa F3RZ91-0F / Z02 #ZL02

1PC        YOKOGAWA F3RZ91-0F / Z02 3YWF

1PC        Yokogawa F3RZ91-0F / Z02 ZRO3

1PC        Yokogawa F3VP35-5N

1PC        Yokogawa F3VP35-5N

1PC        Yokogawa F3VP35-5N

1PC        YOKOGAWA F3VP35-5N IRCY

1pc        yokogawa f3vp35-5n U8K2

1PC        Yokogawa F3WD64-3P

1PC        YOKOGAWA F3WD64-3P Z4E1

1PC        Yokogawa F3XC08-0N

1PC        Yokogawa F3XC08-0N

1PC        Yokogawa F3XC08-0N

1PC        YOKOGAWA F3XC08-0N 6F85

1PC        YOKOGAWA F3XC08-0N DVDO

1PC        Yokogawa F3XD32-3F

1PC        Yokogawa F3XD64-3F

1PC        Yokogawa F3XD64-3F

1PC        Yokogawa F3XD64-3F

1pc        yokogawa f3xd64-3f KAC0

1PC        YOKOGAWA F3XD64-3F S4F8

1PC        Yokogawa F3YD64-1A

1PC        Yokogawa F3YD64-1A

1PC        YOKOGAWA F3YD64-1A S8O1

1PC        Yokogawa F3YD64-1P

1PC        Yokogawa F3YP08-0N

1PC        Yokogawa F3YP08-0N

1PC        Yokogawa F3YP08-0N

1PC        YOKOGAWA F3YP08-0N FD9E

1PC        YOKOGAWA F3YP08-0N G0HN

1PC        YOKOGAWA F3YP14-0N PLC MODULE

1PC        YOKOGAWA F3YP14-0N PLC MODULE Tested

1PC        YOKOGAWA FC11*A

1PC        YOKOGAWA FC11*A

1PC        YOKOGAWA FC11*A E6Y6

1PC        YOKOGAWA module F3CT04-ON

1PC        Yokogawa NFPW441-10 S2

1PC        Yokogawa NFPW441-10 S2 38E0

1PC        YOKOGAWA NFPW441-10 S2 49ME

1PC        Yokogawa PIC PLC F3YD64-1A

1PC        YOKOGAWA PLC CPU F3SP25-2N

1PC        YOKOGAWA PLC DC input F3XD16-3N

1PC        YOKOGAWA PLC module F3SP21-0N

1PC        YOKOGAWA PLC module F3SP66-4S good in condition

1PC        YOKOGAWA PLC MODULE F3SP66-4S GOOD IN ConDITION 8LRR

1PC        YOKOGAWA ProSafe-RS SPW482-13 S1

1PC        YOKOGAWA PS33*A

1PC        YOKOGAWA PS33*A

1PC        YOKOGAWA PS33*A YCPF

1PC        YOKOGAWA PW702

1PC        YOKOGAWA PW702 #ZL02

1PC        YOKOGAWA SD1050A02 AD1004C04 #ZL02

1PC        YOKOGAWA SI11*B #ZL02

1PC        YOKOGAWA TM1L-230B

1PC        YOKOGAWA TM1L-230B GVNE

1PC        YOKOGAWA UD1BG3-045N-1KC-2TA-N Servo Driver

1PC        YOKOGAWA UD1BG3-045N-1KC-2TA-N SERVO DRIVER YT2C

1PC        Yokogawa UP750-50 (S3)

1PC        Yokogawa YOKOGAWA CP701 cards

1PC UT150-VN YOKOGAWA

1PC UT150-VN YOKOGAWA #ZL02

1PC UT150-VN YOKOGAWA XVTX

1PC YIKOGAWA Yokogawa PLC/F3YD64-1A/64 xhg34

1PC YOKOGAW Yokogawa Servo UD1006B0AA -1SAN /01S0680 xhg33

1PC Yokogawa /YOKOGAWA VJA1-016-A6N0 xhg61

1PC YOKOGAWA 15W/220V RM-H7C15ZM 7RH1-Z25 xhg33

1PC YOKOGAWA 15W/220V RM-H7C15ZM 7RH1-Z50 xhg33

1PC YOKOGAWA 2743 xhg44

1PC YOKOGAWA AAI543 -S00 S1 xhg54

1PC YOKOGAWA ADV551-P00 S2

1PC YOKOGAWA ADV551-P00 S2 /d5a00

1PC YOKOGAWA ADV551-P00 S2 /d5a00 #ZL02

1PC YOKOGAWA ATD5D-00

1PC YOKOGAWA ATD5D-00 1C40

1pc YOKOGAWA BARD -400*A I3AGF5 DCS GY01004

1PC Yokogawa Controller UD1BG3-004N-1AB-1SB-N-CN

1PC YOKOGAWA ConTROLLER UD1BG3-004N-1AB-1SB-N-CN 9S8C

1PC YOKOGAWA CP11*C

1pc Yokogawa CPU F3LC11-1F

1PC Yokogawa CPU F3PP08 xhg19

1pc Yokogawa CPU F3SP25

1PC Yokogawa CPU F3VP35-5N xhg19

1PC Yokogawa CPU F3VP35-5N/A xhg19

1PC Yokogawa CPU F3YD64

1PC Yokogawa CPW xhg19

1PC YOKOGAWA CS3000 DCS system module AAP135-S00

1PC YOKOGAWA CS3000 DCS system module AAP135-S00

1PC YOKOGAWA CS3000 DCS System Module AAP135-S00

1PC YOKOGAWA CS3000 DCS SYSTEM MODULE AAP135-S00 BGMB

1PC YOKOGAWA CS3000 DCS system module AAP135-S00 HOI8

1PC YOKOGAWA DCS AAI143-S00 xhg54

1PC YOKOGAWA DCS AAI143-S00+ATK4A-00

1PC YOKOGAWA DCS AAI143-S00+ATK4A-00

1PC YOKOGAWA DCS AAI143-S00+ATK4A-00 9OTN

1pc YOKOGAWA DCS AAI143-S00+ATK4A-00       Free Ship

1PC YOKOGAWA DCS AAI143-S00+ATK4A-00       FREE SHIP HYO9

1PC YOKOGAWA DCS AAI543-H00 S1

1PC YOKOGAWA DCS AAI543-H00 S1

1PC YOKOGAWA DCS AAI543-H00 S1

1PC YOKOGAWA DCS AAI543-H00 S1 4ZA0

1PC YOKOGAWA DCS AAI543-H00 S1 SWCV

1PC YOKOGAWA DCS AAM10 Analogue input module

1PC YOKOGAWA DCS AAM50 Analog output module

1PC YOKOGAWA DCS AAR145-S00 (RTD/POT Input Module 16 channels)

1PC YOKOGAWA DCS AAR145-S00 (RTD/POT INPUT MODULE 16 CHANNELS) MHLM

1PC YOKOGAWA DCS AD5*D

1PC YOKOGAWA DCS AD5*D PZPM

1PC YOKOGAWA DCS ADM12C

1PC YOKOGAWA DCS ADM12C Z1F9

1PC YOKOGAWA DCS ADV551-P00/D5A00

1PC YOKOGAWA DCS AMM12c/ / ADM52C

1PC YOKOGAWA DCS AMM12C/ / ADM52C XQWN

1PC YOKOGAWA DCS CENTUM-XL data acquisition card

1PC YOKOGAWA DCS EB401-10

1PC YOKOGAWA DCS EB401-10 KKJI

1PC YOKOGAWA DCS EB501-10

1pc YOKOGAWA DCS EB501-10

1PC YOKOGAWA DCS EB501-10 VOBP

1pc YOKOGAWA DCS EC401-10 s2       Free Ship

1pc YOKOGAWA DCS EC401-10 s2       Free Ship C3YC

1PC YOKOGAWA DCS EC401-10 S2       FREE SHIP PFQM

1PC YOKOGAWA DCS ESB BUS,ADDRESS PLC

1PC YOKOGAWA DCS ESB BUS,ADDRESS PLC Z1SJ

1PC YOKOGAWA DCS MAC2*B

1PC YOKOGAWA DCS MAC2*B #ZL02

1PC YOKOGAWA DCS MAC2*B GMVO

1PC YOKOGAWA DCS MX6*A

1PC YOKOGAWA DCS MX6*A #ZL02

1PC YOKOGAWA DCS MX6*A ELBB

1PC YOKOGAWA DCS NC4* B Nest Common Card

1PC YOKOGAWA DCS NC4* B NEST COMMON CARD COXF

1PC YOKOGAWA DCS NP54*C Enhanced MFCU Processor Card #ZL02

1PC YOKOGAWA DCS PW482-10