IC697CMM742

电压型与电流型有什么不同？ 变频器的主电路大体上可分为两类：电压型是将电压源的直流变换为交流的变频器，直流回路的滤波是电容；电流型是将电流源的直流变换为交流的变频器，其直流回路滤波石电感。 为什么变频器的电压与电流成比例的改变？ 异步电动机的转矩是电机的磁通与转子内流过电流之间相互作用而产生的，在额定频率下，如果电压而只降低频率，那么磁通就过大，磁回路饱和，严重时将烧毁电机。因此，频率与电压要成比例地改变，即改变频率的同时控制变频器输出电压，使电动机的磁通保持，避免弱磁和磁饱和现象的产生。这种控制方式多用于风机、泵类节能型变频器。

DRIVES INCORPORATED C2080H-1R STAINLESS 2IN PITCH 10FT ROLLER CHAIN D323296

1/2IN PITCH 83IN LONG DOUBLE STRANDS ROLLER CHAIN D408794

MAX 40-1R X 10 10FT ROLLER CHAIN D317934

TSUBAKI 80SS STAINLESS STEEL 6FT ROLLER CHAIN 1IN PITCH D227843

AMETRIC 3/8 IN PITCH 10FT SINGLE STRAND ROLLER CHAIN D418455

LANTECH 40218501 SINGLE STRAND 1/2IN PITCH 34IN LONG ROLLER CHAIN D351408

listedTSUBAKI 40CU CONVEYOR BELT SINGLE STRAND CHAIN 1/2IN PITCH 14IN D222665

REXNORD STEEL SINGLE STRAND 2-1/2 IN PITCH 67 IN LENGTH ROLLER CHAIN D264811

listed35 USA SINGLE STRAND 3/8IN PITCH 54IN LENGTH ROLLER CHAIN D367105

listedDIAMOND C2060H 1-1/2 IN 55 IN SINGLE STRAND ROLLER CHAIN D436820

DIAMOND 50 5/8IN PITCH 10IN LONG DOUBLE STRANDS ROLLER CHAIN D415157

listedBROWNING C80 20 COUPLING DOUBLE STRANDS 1IN 20IN ROLLER CHAIN D252566

MORSE 40 1/2IN PITCH 10FT LENGTH DOUBLE STRANDS ROLLER CHAIN D416369

TSUBAKI RS40HP 1/2 IN 10 IN SINGLE STRAND HOLLOW PIN ROLLER CHAIN D504169

ARROWHEAD SYSTEMS STAINLESS 1-1/4IN 24FT SINGLE STRAND ROLLER CHAIN D416509

RENOLD 80 1IN PITCH 18IN LONG SINGLE STRAND ROLLER CHAIN D388390

15080960 SIZE 40 SINGLE STRAND 1/2IN PITCH 65IN ROLLER CHAIN STEEL D215113

RENOLD 35-1 RIV 1/2 IN 10FT SINGLE STRAND ROLLER CHAIN B412219

listedRENOLD 40A1SSX10FT STAINLESS 1/2IN 10FT SINGLE STRAND ROLLER CHAIN D384671

REXNORD 100 SINGLE STRAND 1-1/4 IN PITCH 10FT ROLLER CHAIN D344026

DIAMOND X-1189-010 25 RIVETED 1/4IN 10FT SINGLE STRAND ROLLER CHAIN D381827

WHITNEY 50 5/8IN PITCH 7IN LONG DOUBLE STRANDS ROLLER CHAIN D415153

TSUBAKI RS10B RIVETED STEEL 5/8 IN 7-1/2FT SINGLE STRAND ROLLER CHAIN B435442

WIPPERMANN STAINLESS 1/2 IN PITCH 15FT DOUBLE STRANDS ROLLER CHAIN D422102

GASTI N354-24 1/4IN PITCH 124IN LONG SINGLE STRAND ROLLER CHAIN D387086

HKK 40-RIV 1/2 IN 10FT SINGLE STRAND RIVETED ROLLER CHAIN D499798

TSUBAKI RS08B-1 3.048M 1/2 IN 10FT SINGLE STRAND ROLLER CHAIN B416524

WHITNEY C2050B DRESSER SINGLE STRAND 1-1/4 IN 10FT ROLLER CHAIN D341974

REXNORD 120-3 TRIPLE STRANDS ROLLER CHAIN 22-1/2 IN 1-1/2 IN D422837

listedTSUBAKI R03125 3-1/8 IN 118-3/4 IN SINGLE COTTERED ROLLER CHAIN D515477

DIAMOND 41 SINGLE STRAND 1/2 IN 3FT ROLLER CHAIN D367014

60 3/4 IN 10FT SINGLE STRAND COTTERED ROLLER CHAIN D513301

LINK-BELT C2050SN 1-1/4 IN PITCH 51-1/2 IN ROLLER CHAIN D436889

listedREXNORD REX35 RIVETED DOUBLE STRANDS 3/8 IN PITCH 10FT ROLLER CHAIN B279841

listedTSUBAKI RF2040 1 IN 80 IN SINGLE STRAND ROLLER CHAIN B439046

DIAMOND X-1503-R SINGLE STRAND 1/2 IN 10FT ROLLER CHAIN D342263

HITACHI C2060 SINGLE STRAND 1-1/2IN PITCH 26IN LONG ROLLER CHAIN D264818

REXNORD C2060 1-1/2 IN 10FT SINGLE STRAND ROLLER CHAIN D497726

TSUBAKI RF2050S SINGLE STRAND 1-1/4IN PITCH 10FT LENGTH ROLLER CHAIN D311264

TSUBAKI RF06B-2 DOUBLE STRANDS 3/8IN PITCH 10FT ROLLER CHAIN D333798

LINK-BELT 100-3 PTC RIVETED TRIPLE STRANDS 1-1/4 IN 2FT ROLLER CHAIN D318377

REXNORD 1843SS-BC 1/2 IN 10FT BASE SINGLE STRAND ROLLER CHAIN B385764

BROWNING C35-24 DOUBLE STRANDS 3/8 IN 8-7/8 IN ROLLER CHAIN COUPLING D317600

TSUBAKI RS60-1-RP RIVETED 3/4IN 29-1/2 IN SINGLE STRAND ROLLER CHAIN B381353

listedSEDIS H032102100 DOUBLE STRANDS 1/2IN PITCH 10FT LENGTH ROLLER CHAIN D348968

WHITNEY C2050R DRESSER SINGLE STRAND 1-1/4 IN 10FT ROLLER CHAIN D342058

RADEMAKER GEN 99.0021 JOINING LINK 1IN PITCH ROLLER CHAIN D264110

STOCK DRIVE PRODUCTS A 6M 7-25ACE 1/4 IN PITCH 5FT ROLLER CHAIN D437118

DIAMOND 35 3/8 IN 80-5/8 IN SINGLE STRAND RIVETED ROLLER CHAIN D503486

LANTECH 30009617 SINGLE STRAND 3/8IN PITCH 22IN LENGTH ROLLER CHAIN D308433

DIAMOND XAP-1189-D-010 1/4 IN 8FT SINGLE STRAND ROLLER CHAIN D448204

OCM 50 5/8IN PITCH 10FT LENGTH SINGLE STRAND ROLLER CHAIN D371100

08B 360 LINKS 1/2 IN 15 IN SINGLE STRAND ROLLER CHAIN B382608