描述

這種變頻器輸入側(cè)變壓器采用多相移位技術(shù)，輸出側(cè)采用多電平正弦PWM技術(shù)，諧波較低，在無(wú)輸出濾波器的情況下，就可使THD<1％，其單元串聯(lián)的數(shù)量決定輸出電壓的等級(jí)，所以它可適用于任何普通的高壓電動(dòng)機(jī)。雖然采用這種結(jié)構(gòu)會(huì)使器件的數(shù)量增加，但由于驅(qū)動(dòng)功率下降，開(kāi)關(guān)頻率較低且不必采用均壓電路，系統(tǒng)的效率仍可達(dá)97%，功率因數(shù)可達(dá)0.95以上。另外，在某個(gè)功率單元出現(xiàn)故障時(shí)，可自動(dòng)退出系統(tǒng)，而其余的功率單元可繼續(xù)保持電機(jī)的運(yùn)行，減少停機(jī)時(shí)造成的損失，便于冗余設(shè)計(jì)，技術(shù)上較成熟。 主營(yíng)：本特利，英維思，伍德沃德，福克斯波羅、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門(mén)子、摩托羅拉、GE發(fā)那科、安川、博世力士樂(lè)，ACSO， 力士樂(lè)等各大品牌的DCS系統(tǒng)配件，機(jī)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(jià)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