6SL3983-6PX00-0AA0

6SL3983-6PX00-0AA0 

串级调速是指绕线式电动机转子回路中串入可调节的附加电势来改变电动机的转差，达到调速的目的。大部分转差功率被串入的附加电势所吸收，再利用产生附加的装置，把吸收的转差功率返回电网或转换能量加以利用。根据转差功率吸收利用方式，串级调速可分为电机串级调速、机械串级调速及晶闸管串级调速形式，多采用晶闸管串级调速。本方法适合于风机、水泵及轧钢机、矿井提升机、挤压机上使用。

其特点为：1、可将调速过程中的转差损耗回馈到电网或生产机械上，效率较高；2、装置容量与调速范围成正比，投资省，适用于调速范围在额定转速70%-90%的生产机械上；3、调速装置故障时可以切换至全速运行，避免停产；4、晶闸管串级调速功率因数偏低，谐波影响较大。

6SL3983-6PX00-0AA0 

THORNITON DOT TWO SPT04

AirSpan Marconi WipLL BSR 925mhz 09100065 TDD EXT

MKS ION GAUGE CONTROLLER TYPE 290 290C-01

CYCLONE MICROSYSTEMS PCI913 REV A 270-0913

PHYSIK INSTRUMENTS HVPZT-AMPLIFIER E-507.00

ALVARION BreezeACCESS SU-RA-3.5B 835251

SUPERIOR ELECTRIC SS2000D6 SLO-SYN MOTOR DRIVE,STEPPER

Toshiba 2.2kW Transistor Inverter VFSX-2022UP1

LOT OF 36 OPTO 22 G4 REG FUSE BAD 5V 24V

Alvarion AN1339 2.3-2.7GHz/90 ANTENNA 723209

Alvarion Bmax BST AU ODU 3.31 733211

EXFO FLS-235B POCKET PAL FAULT LOCATOR FLS-235B1-50

CISCO IP/VC 3520 VIDEO GATEWAY W/ MW-V.35-2T NEW

Alvarion BreezeACCESS SU-NI-BD-OF OFDM 635303

YASKAWA MAGNETEK GPD205-10P7 VS MINI DRIVER

ALVARION 4M-CPE-ODU-PRO-3.5 ANTENNA 735940

ALVARION/NERA WiLink-CPE-ODU-PRO-SE-3.5 735121N

ANDREW 611678316 KU-BAND TX-RX FEED FOR 123-33.5 HORN

ALVARION BreezeACCESS AU-RE-3.5a1 835650 W/AU-NI-3.5a1

MITSUBISHI INVERTER FREQROL-U100 FR-U120-0.75K-F

Sun Netra T2000 System Fan Assembly P/N 371-2736

ALVARION BreezeACCESS SU-RA-5.7 857212

ALVARION BMAX2 SU-3.5G AD8469-01 ODU EXT ANTENNA

MOTOROLA 01-W3739F NORTEL NTAR02JY

EMC AC POWER SUPPLY FOR EMC CX300 DPE AND DAE NEW

RACAL INSTRUMENTS 5140 DUAL CHANNEL THERMAL CONTROLLER

MANOSTAR YAMAMOTO TYPE MS65L PRESSURE SWITCH NEW

RACAL INSTRUMENTS 1260-35 MULTIPLEXER VXI MODULE

GILAT SKYEDGE IP VSAT DVB 542000 VERSION 3.0

DUNEGAN / ENDEVCO DISTRIBUTION ANALYZER MODEL 920

TELEGATE QTE AS1615 EL1 MODULE

LEITZ 81L LENS FOR MICROSCOPE

MAXON DC MOTOR RE 75 + GEAR HEAD 250WATT NEW 279054

TELEGATE QTE AS1890 MAC MODULE

LINOS CCD LENS 608 152.4mm f/5.6 FOR MICROSCOPE

GILAT PC010060 HUB RECEIVER MODULE

AVAYA LUCENT M8048R-100TC 48 PORTS MODULE NEW

YASKAWA CIMR-J7AAB0P7 VS MINI J7 AC DRIVE

MOTOROLA CompactPCI PROCESSOR MODULE A93429-011 cPCI

ATRICA AT20001 OPTICAL ETHERNET EDGE SWITCH A-2100 AC

TIMA TIMA-1 Rx/Tx TELEPHONY ISA CARD 100-3680-002