描述
諧波鐵損電機(jī)中的鐵心損耗也由于電源電壓中出現(xiàn)諧波而增大;定子電流的各次諧波在氣隙間建立了時(shí)間諧波磁動(dòng)勢(shì)。氣隙中任何一點(diǎn)的總磁勢(shì)是基波和時(shí)間諧波磁勢(shì)的合成。對(duì)于一個(gè)三相6階梯電壓波形,氣隙中的磁密峰值比基波值約大10%,但是由時(shí)間諧波磁通引起的鐵損的增加是很小的。對(duì)于端部漏磁通和斜槽漏磁通產(chǎn)生的雜散損耗,在諧波頻率作用下將有所增加,這一點(diǎn)在非正弦供電時(shí)必須考慮:端部漏磁效應(yīng)在定子和轉(zhuǎn)子繞組中都存在,主要是漏磁通進(jìn)入端板引起的渦流損耗。由于定子磁勢(shì)和轉(zhuǎn)子磁勢(shì)間相位差的變化,在斜槽結(jié)構(gòu)中產(chǎn)生斜槽漏磁通,其磁勢(shì)在端部最大,在定轉(zhuǎn)子鐵心及齒中產(chǎn)生損耗。
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主營(yíng):世界知名品牌的PLC、DCS系統(tǒng)備件模塊
①Allen-Bradley(美國(guó)AB)系列產(chǎn)品》
②Schneider(施耐德電氣)系列產(chǎn)品》
③General electric(通用電氣)系列產(chǎn)品》
④Westinghouse(美國(guó)西屋)系列產(chǎn)品》
⑤SIEMENS(西門子系列產(chǎn)品)》
⑥銷售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。
⑦estinghouse(西屋):OVATION系統(tǒng)、WDPF系統(tǒng)、MAX1000系統(tǒng)備件。
⑧Invensys Foxboro(??怂共_):I/A Series系統(tǒng),F(xiàn)BM(現(xiàn)場(chǎng)輸入/輸出模塊)
順序控制、梯形邏輯控制、事故追憶處理、數(shù)模轉(zhuǎn)換、輸入/輸出信號(hào)處理、數(shù)
據(jù)通信及處理等。Invensys Triconex:冗余容錯(cuò)控制系統(tǒng)、基于三重模件冗余(TMR)
結(jié)構(gòu)的zui現(xiàn)代化的容錯(cuò)控制器。
⑨Siemens(西門子):Siemens MOORE,Siemens Simatic C1,Siemens數(shù)控系統(tǒng)等。
⑩Bosch Rexroth(博世力士樂):Indramat,I/O模塊,PLC控制器,驅(qū)動(dòng)模塊等。
◆Motorola(摩托羅拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
Nema23 Stepper Motor 160oz-in Nema 23 Vexta No Reserve
Vexta Oriental Motor PK543BN-TG30A4 Driver CSD5807N-P
VEXTA FBLM440C-GF Brushless DC Motor w/GF4G5 Gear Head
VEXTA UPH266-A 2-phase Stepping Motor Free Ship
One Vexta SPG8800 Pulse Generator Free Ship
VEXTA STEPPING MOTOR PH264-03
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Vexta A4043-9415E Motor+Ball Reducer BRA85 Ratio 1:24
Vexta Oriental Motor ASM34-H50 with Gear Ratio 50:1
Vexta Controller 9200 SG9200D-G Operational Unit OP200A
Vexta Oriental Motor PH533-NB-C2 0.72 deg with Gear
Nema23 Stepper Motor 160oz-in Nema 23 Vexta No Reserve
Vexta Oriental Motor UPH566HG1-A2 0.0144 deg w/Gear
Vexta Oriental A5109-9412K Stepping Motor NEW
Vexta Oriental Motor UPH566HG2-A2+Harmonic Gear 1/50
Vexta C8513-9012K 1.8 deg 3.1V 1.55A Stepping Motor
Nema23 Stepper Motor 160oz-in Nema 23 Vexta No Reserve
Vexta Pulse Generator SG8200S Free Ship
Vexta Oriental Motor 0.72deg 0.75A+Driver CSD5807N
One Vexta Motor PK545-NBC-C25 with Koyo TRD-3A1024-2610
Oriental Vexta AC Servo Motor FXM250B-HG100
Oriental Vexta Motor PK268-03A-C9+driver 24/36VDC 3A
Vexta 5 phase Stepper Motor PK596AW1-A17
Vexta Oriental Motor 5-Phase Driver CSD5814N-P 24VDC
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1 NEW VEXTA ORIENTAL STEPPING MOTOR DRIVER 2PH 24VDC NI
VEXTA EM599H-NA Stepping Motor Free Ship
Vexta Oriental Stepping Motor A3617-9412 6VDC 2A 1.8deg
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VEXTA BLD15A-F DC SERVO MOTOR DRIVER FREE SHIP
Vexta Oriental Motor 5-phase Driver DFC5114P Free Ship
Vexta Oriental Motor PH544HG2-NB+Harmonic Gear 100:1
one Super Vexta 5-phase Driver UDX5107N Free Ship
LOT 4 QMC SERVO VEXTA STEPPER MOTOR ENCODER CONTROLLER
Vexta PK243-01BA 2-Phase Stepping Motor
VEXTA PK599H-NACM Stepping Motor with Brake Free Ship
One VEXTA UPH299H-AA Stepping Motor Free Ship
Super Vexta 5-Phase Servo Driver UDX5107 UDX-5107 0.75A
Vexta Oriental Motor PH544HG1-NB 0.0144 deg w/Gear
SUPER VEXTA 5 PHASE DRIVER UDX5128NA
Vexta Oriental Motor PK543BN-TG30A4+Drive CSD5814N-P
Vexta Oriental Motor Driver CSD5807N-P 0.75A 24VDC 5 P
One Vexta Servo Motor FXM280-B 80W CNC Free Ship
Vexta AC Servo Motor FX250B HG100 CNC Free Ship
VEXTA NANOSTEP CONTROLLER MODEL:DFR1514A
Vexta Oriental Stepping Motor 5-Phase UPH564-A 0.75A
Vexta Oriental 2 Phase 1.55A Stepping Motor 3.1V 1.8deg
CNC Mill NEMA23 Japan VEXTA 5 Ph Stepper Motor 2 Shaft
CNC VEXTA NEMA34 AC Servo motor&drive Replace stepper
Vexta 2-Phase DC Stepper Stepping Motor 6.3V/1.4A
Nema23 Stepper Motor 160oz-in Nema 23 Vexta No Reserve
CNC Mill NEMA34 Japan VEXTA 5 Phase Step Motor 2 Shaft
VEXTA ORIENTAL MOTOR PH 266-01-M2 6V 1.2AMP WITH BRAKE
Lot of 3 VEXTA PXB44H-02AA-C8 2 Ph Stepper Motor W/Brkt
Vexta PK266-02A 2-Phase Stepping/Steppe?r Motor 1.8/Step
Vexta PH266-1 Stepper Motor 6V 1.8 Deg
Vexta PK268M-02A-C7 2-PH Step/Stepper/St?epping Motor
TWO NEW VEXTA HI RESOLUTION 2 PHASE STEPPERS PK264M-03A
Vexta ORIENTAL MOTOR PK569AUA Step Motor
Vexta PH264-E1.5 2 phase Stepper Motor,New in Box
A4244-9515NGMM,VEXTA,5 WIRE 5PH STEPPER MOTOR,1 EA.
Vexta PK266-E.0B 2 phase Stepper Motor
VEXTA Stepper Stepping Motor Dual Shaft NIB
Vexta AXHM230K-GFH Brushless DC Motor Pack(2253)