描述

大功率變頻器按主回路拓撲結(jié)構(gòu)可分為“高-低-高”式變頻器、“高-低”式變頻器、“高-高”式變頻器?！案?高”式又分為電流型、中性點鉗位的三電平電壓型和單元串聯(lián)多電平電壓型。其中：“高-低-高”式變頻器，由于兩側(cè)均需大型變壓器，損耗高，變頻系統(tǒng)啟動時負載能力將下降，諧波較大等缺點，使其發(fā)展受到限制?！案?高”電流型變頻器，一般為兩電平結(jié)構(gòu)，電動機承受的du/dt較大，且需均壓和緩沖電路，技術(shù)復雜，器件較多，裝置體積大，調(diào)整和維修都比較困難，功率因數(shù)較低，并隨負載變化而變化，不好補償，輸出諧波和共模電壓對電機的影響等問題，電機需降額使用和加強絕緣。其優(yōu)點是不需外加電路就可將負載的再生能量回饋電網(wǎng)。目前，主要應(yīng)用于超大功率場合。

主營：本特利，英維思，伍德沃德，?？怂共_、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門子、摩托羅拉、GE發(fā)那科、安川、博世力士樂，ACSO，

力士樂等各大品牌的DCS系統(tǒng)配件，機器人系統(tǒng)配件，大型伺服系統(tǒng)備件。

Force Computers SYS68K CPU-40B/4-01 VME MVME

Force SYS68K/CPU-6 880-12537-101.A?2 LAM 810-17034-300-1

FORCE COMPUTERS SYS68K/CPU-6A

Force SYS68K CPU-30Lite

FORCE COMPUTER VME SYS68K CPU-30ZBE PROCESSOR BOARD

FORCE SYS68K DRAM VME BOARD MVME MAINFRAME MOTOROLA

Force SYS68K CPU-33B/4 VME Board

Force SYS68K ISIO-1 Serial I/O Board

FORCE SYS68K SRAM-4A VME BOARD MVME MAINFRAME MOTOROLA

FORCE PROCESSOR BOARD Model SYS68K ASCU-2

FORCE SYS68K ISCSI-1 VME BOARD MVME MAINFRAME MOTOROLA

FORCE COMPUTERS SYS68K CPU-6A

FORCE CONTROL BOARD SYS68K ISI0-2/C2(P/N 220062)

FORCE SYS68K CPU-2VF VME SINGLE BOARD COMPUTER MOTOROLA

Force SYS68K/CPU-6A A7307 Rev D VME MVME Board

Force SYS68K/SASI-1 Lam research 810-017035-001 Rev.B

Force SYS68K/Eagle-01?C User’s Manual

Force SYS68K/SASI-1

FORCE SYS68K ISIO-2 MODULE ASSY

Force SYS68K CPU-40 B/16 VME Board

BUS TRONIC FORCE SYS68K MAINFRAME BOARDS NICE LOT

Force SYS68K/CPU-6A/C?3 810-017034-300 rev.A

Force SYS68K/CPU-30BE SYS68K/CPU-30BE?/16/C2 VME Module

Force SYS68K/CPU-33B/?4 VME Board CAT#:510098 PN:600-1

FORCE SYS68K/WFC-1 Floppy Controller VME Board 300001

Force SYS68K/ISIO-1FP I/O Controller Dual Board w Cable

Force SYS68K/CPU-33B/?4 VME Board CAT#:510098

FORCE SYS68K CPU BOARD 310004 WORKING

Force SYS68K/ISIO-1FP I/O Controller Dual Board 310034

Force SYS68K/ISIO-2 I/O Controller Board PN:310031

FORCE COMPUTER CPU BOARD SYS68K CPU-1B NEW-NO BOX

FORCE COMPUTER VME BOARD MODEL SYS68K REV C

FORCE COMPUTERS SYS68K/CPU-6A USPP SYS68KCPU6A

FORCE COMPUTER MODEL SYS68K SASI-1441 LAM REV A

Force SYS68K CPU30ZBE CPU-30ZBE CPU Module VMEbus VME

FORCE COMPUTERS SYS68K/CPU-6VA USPP SYS68KCPU6VA

Force SYS68K/ISIO-2 I/O Controller Board PN:310031

Force SYS68K/ISIO-1FP I/O Controller Dual Board 310034

FORCE COMPUTERS SYS68K/PWR-09A USPP SYS68KPWR09A

Force SYS68K/CPU-33B/?4 VME Board CAT#:510098

特價現(xiàn)貨處理:

6GK1161-3AA00

6GK1161-3AA01

6ES7972-0AA01-0AA0

6ES7307-1EA00-0AA0

6ES7341-1AH01-0AE0

6ES7332-5HD01-0AB0

6ES7443-1EX11-0XE0

6ES7331-7PF10-0AB0

6ES7318-2AJ10-0AB0

6ES7321-1BL00-0AA0

6ES7322-1HH01-0AA0

6ES7972-0BA52-0XA0

6AV6545-0BA15-2AX0

6AV6545-0BC15-2AX0

6AV6545-0CC10-0AX0

SAFTRONICS EZ6-125

Starter EZ6-40

Saftronics AA1049