6SL3983-6PX00-0AA0
串級調速是指繞線式電動機轉子回路中串入可調節的附加電勢來改變電動機的轉差，達到調速的目的。大部分轉差功率被串入的附加電勢所吸收，再利用產生附加的裝置，把吸收的轉差功率返回電網或轉換能量加以利用。根據轉差功率吸收利用方式，串級調速可分為電機串級調速、機械串級調速及晶閘管串級調速形式，多採用晶閘管串級調速。本方法適合於風機、水泵及軋鋼機、礦井提升機、擠壓機上使用。
其特點為：1、可將調速過程中的轉差損耗回饋到電網或生產機械上，效率較高；2、裝置容量與調速範圍成正比，投資省，適用於調速範圍在額定轉速70%-90%的生產機械上；3、調速裝置故障時可以切換至全速運行，避免停產；4、晶閘管串級調速功率因數偏低，諧波影響較大。
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