METEOR2-MC/4 采集卡

按照主电路工作方式分类，可以分为电压型变频器和电流型变频器；按照开关方式分类，可以分为PAM控制变频器、PWM控制变频器和高载频PWM控制变频器；按照工作原理分类，可以分为V/f控制变频器、转差频率控制变频器和矢量控制变频器等；按照用途分类，可以分为通用变频器、变频器、高频变频器、单相变频器和三相变频器等。

我们知道，交流电动机的转速表达式为：

n=60 f(1-s)/p

式中n异步电动机的转速； f异步电动机的频率； s电动机转差率； p电动机对数。

由式(1)可知，转速n与频率f成正比，只要改变频率f即可改变电动机的转速，当频率f在0～50Hz的范围内变化时，电动机转速调节范围非常宽。变频器就是通过改变电动机电源频率实现速度调节的，是一种理想的高效率、的调速手段。

GENERAL ELECTRIC DS3800NEPA1C1A   DS3800NEPA1C1A

GENERAL ELECTRIC DS3800NECA1B1A    DS3800NECA1B1A

GENERAL ELECTRIC DS3800NDMA1D1B BOARD WITH DS3800DDMA1A1A

General Electric DS3800NDIDIMID Circuit Board -No 

GENERAL ELECTRIC DS3800NDID1Q1H   DS3800NDID1Q1H

GENERAL ELECTRIC DS3800NDID1Q1H CIRCUIT BOARD *IN A *

GENERAL ELECTRIC DS3800NDID1P1H CIRCUIT BOARD **

GENERAL ELECTRIC DS3800NDID1P1G   DS3800NDID1P1G

GENERAL ELECTRIC DS3800NDID1P1G CIRCUIT BOARD **

GENERAL ELECTRIC DS3800NDID1P1A   DS3800NDID1P1A

GENERAL ELECTRIC DS3800NDID1J1D CIRCUIT BOARD **

GENERAL ELECTRIC DS3800NDID1F1C W/ DS3800DDIB1B1C CIRCUIT BOARD **

GENERAL ELECTRIC DS3800NDID1F1C CIRCUIT BOARD **

GENERAL ELECTRIC DS3800NDIC   DS3800NDIC

GENERAL ELECTRIC DS3800NDAC1E1F   DS3800NDAC1E1F

General Electric DS3800NDAC1E1F Output Board

GENERAL ELECTRIC DS3800NDAC1E1F BOARD ANALOG OUTPUT **

GENERAL ELECTRIC DS3800NDAC1E1E CIRCUIT BOARD **

GENERAL ELECTRIC DS3800NDAC1E1E 6BA08 BOARD DS3800NDACIEIE

General Electric DS3800NDAC1D1E Converter -No 

GENERAL ELECTRIC DS3800NDAC1D1E CIRCUIT BOARD **

GENERAL ELECTRIC DS3800NDAC1D1E CIRCUIT BOARD *OUT OF *

GENERAL ELECTRIC DS3800NDAC1B1C   DS3800NDAC1B1C

General Electric DS3800NDAC1B1C Circuit Board -

GENERAL ELECTRIC DS3800NDAC1B1C 6BA06 BOARD

GENERAL ELECTRIC DS3800NDAC   DS3800NDAC

GENERAL ELECTRIC DS3800ND1D1Q1H CIRCUIT BOARD **

GENERAL ELECTRIC DS3800NCVA1A1B    DS3800NCVA1A1B

GENERAL ELECTRIC DS3800NCVA1A1B CURRENT LOOP INPUT BOARD **

GENERAL ELECTRIC DS3800NCLA    DS3800NCLA

GENERAL ELECTRIC DS3800NCID1C1C CURRENT ISOLATOR CARD **

GENERAL ELECTRIC DS3800NCID1B1A CURRENT ISOLATOR CARD *NO *

GENERAL ELECTRIC DS3800NCID1B1A CURRENT ISOLATOR CARD **

GENERAL ELECTRIC DS3800NCIB1H1D CURRENT ISOLATOR CARD **

GENERAL ELECTRIC DS3800NCIB1H1D CURRENT ISOLATOR CARD

GENERAL ELECTRIC DS3800NCIA1B1C    DS3800NCIA1B1C

GENERAL ELECTRIC DS3800NCCB1J1H AUXILARY BOARD **

GENERAL ELECTRIC DS3800NCCB1J1F AUXILARY BOARD **

GENERAL ELECTRIC DS3800NCCB1H1F w/ DS3800DCCB1C1C PC BOARD **

GENERAL ELECTRIC DS3800NCCB1H1F PC BOARD **

GENERAL ELECTRIC DS3800NCCB1H1F PC BOARD **

GENERAL ELECTRIC DS3800NCBA1A1B BOARD

GENERAL ELECTRIC DS3800NC1C1D1E ISOLATOR CARD

GENERAL ELECTRIC DS3800NBID1F1E ISOLATION CARD *REMANUFACTURED*

GENERAL ELECTRIC DS3800NBID1E1D PC BOARD *REMANUFACTURED*

GENERAL ELECTRIC DS3800NBID1E1D PC BOARD **

GENERAL ELECTRIC DS3800NBID1E1D INTERFACE CARD **

GENERAL ELECTRIC DS3800NBIC1J1G BRIDGE INTERFACE MODULE **

GENERAL ELECTRIC DS3800NBIC1J1G BRIDGE INTERFACE MODULE **

GENERAL ELECTRIC DS3800NBIC   DS3800NBIC

GENERAL ELECTRIC DS3800NBIB1K1F w/ DS3800DBIB1C1C INTERFACE CARD **

GENERAL ELECTRIC DS3800NBIB1K1F w/ DS3800DBIB1C1C INTERFACE CARD **

GENERAL ELECTRIC DS3800NBIB1K1F BRIDGE INTERFACE MODULE **

GENERAL ELECTRIC DS3800NBIB1K1F BRIDGE INTERFACE MODULE **

GENERAL ELECTRIC DS3800NBIA     DS3800NBIA

GENERAL ELECTRIC DS3800NBFA1A1A / DS3800NPCA1A1B **

GENERAL ELECTRIC DS3800NATF1C1B DISTRIBUTION CARD **

GENERAL ELECTRIC DS3800NATA1B1C DRIVE BOARD **

GENERAL ELECTRIC DS3800NATA1B1C DRIVE BOARD **

GENERAL ELECTRIC DS3800NASB1B1C

GENERAL ELECTRIC DS3800NAIE1A1A   DS3800NAIE1A1A

GENERAL ELECTRIC DS3800NADC1D1D    DS3800NADC1D1D

GENERAL ELECTRIC DS3800NADC1C1A   DS3800NADC1C1A

GENERAL ELECTRIC DS3800NADB1D1D w/ DS3800DADB1A1A PC BOARD *

GENERAL ELECTRIC DS3800NADB1B1B w/ DS3800DADB1A1A PC BOARD **

GENERAL ELECTRIC DS3800NADB1B1B w/ DS3800DADB1A1A PC BOARD **

GENERAL ELECTRIC DS3800NADA1F1G   DS3800NADA1F1G

GENERAL ELECTRIC DS3800NADA1F1G CIRCUIT BOARD *OUT OF *

General Electric DS3800NADA1F1F Circuit Board -No 

GENERAL ELECTRIC DS3800NADA1E1F   DS3800NADA1E1F

General Electric DS3800NADA1E1F Circuit Board -

General Electric DS3800NADA1E1F Circuit Board -No 

General Electric DS3800NADA1E1E Circuit Board -

GENERAL ELECTRIC DS3800N0AA1F1D BOARD WITH DS3800D0AA1A1B

GENERAL ELECTRIC DS3800HXTAIEIE PC BOARD TRANSMITTER **

GENERAL ELECTRIC DS3800HXTA1E1E CIRCUIT BOARD *OUT OF *

GENERAL ELECTRIC DS3800HXTA   DS3800HXTA

GENERAL ELECTRIC DS3800HXRC1F1C w/ DS3800DXRC1C1B PC BOARD RECEIVER *NO *

GENERAL ELECTRIC DS3800HXRC1F1C PC BOARD **

GENERAL ELECTRIC DS3800HXRC1E1C w/ DS3800DXRC1D1B PC BOARD RECEIVER **

GENERAL ELECTRIC DS3800HXRC1E1C w/ DS3800DXRC1D1A PC BOARD RECEIVER **

GENERAL ELECTRIC DS3800HXRC1E1C PC BOARD RECEIVER **

GENERAL ELECTRIC DS3800HXRC1D1C w/ DS3800DXRC1D1B PC BOARD RECEIVER **

GENERAL ELECTRIC DS3800HXRC   DS3800HXRC

GENERAL ELECTRIC DS3800HXRB1D1D   DS3800HXRB1D1D

GENERAL ELECTRIC DS3800HXRB1B1B   DS3800HXRB1B1B

GENERAL ELECTRIC DS3800HXRA1F1F   DS3800HXRA1F1F

GENERAL ELECTRIC DS3800HXRA1E1E W/ DS3800DXRA1C1C CIRCUIT BOARD **

GENERAL ELECTRIC DS3800HXRA1E1E   DS3800HXRA1E1E

GENERAL ELECTRIC DS3800HXRA1E1E PC BOARD WITH DS3800DXRA1C1C

GENERAL ELECTRIC DS3800HXRA1E1E 6BA06 BOARD W/ DS3800DXRA1C1C 6BA04

GENERAL ELECTRIC DS3800HXRA   DS3800HXRA

GENERAL ELECTRIC DS3800HXPE1A1A CIRCUIT BOARD **

GENERAL ELECTRIC DS3800HXPD-1C1E   DS3800HXPD1C1E

GENERAL ELECTRIC DS3800HXPD1C1E CPU EXPANDER CARD **

GENERAL ELECTRIC DS3800HXPD1C1D   DS3800HXPD1C1D

GENERAL ELECTRIC DS3800HXPD1B1D   DS3800HXPD1B1D

General Electric DS3800HXPD1B1D Circuit Board

GENERAL ELECTRIC DS3800HXPC1D1F   DS3800HXPC1D1F

GENERAL ELECTRIC DS3800HXPC1D1F PC BOARD EXPANDER **

GENERAL ELECTRIC DS3800HXPA1F1H   DS3800HXPA1F1H

GENERAL ELECTRIC DS3800HXPA1D1D   DS3800HXPA1D1D

GENERAL ELECTRIC DS3800HXPA1B1A   DS3800HXPA1B1A

GENERAL ELECTRIC DS3800HXMA1L1K   DS3800HXMA1L1K

GENERAL ELECTRIC DS3800HXMA1L1K EXPANDER BOARD **

GENERAL ELECTRIC DS3800HXMA1L1K EXPANDER BOARD

GENERAL ELECTRIC DS3800HXMA1L1K 6BA11 C-ESS EXPANDER BOARD

GENERAL ELECTRIC DS3800HXCA1D1D   DS3800HXCA1D1D

GENERAL ELECTRIC DS3800HXCA1D1D CIRCUIT BOARD *OUT OF *

GENERAL ELECTRIC DS3800HXCA1A1A   DS3800HXCA1A1A

GENERAL ELECTRIC DS3800HVDB1KIG Video Driver Card

GENERAL ELECTRIC DS3800HVDB1K1G   DS3800HVDB1K1G

GENERAL ELECTRIC DS3800HVDB1K1G DRIVER BOARD **

GENERAL ELECTRIC DS3800HVDB1K1G DRIVER BOARD **