1785-KA;
1785-KA現(xiàn)貨;
1785-KA供應(yīng)。
變頻器(Variable Frequency Drive,簡稱VFD),又稱變頻調(diào)速器,是一種用于控制交流電動(dòng)機(jī)轉(zhuǎn)速和輸出功率的電子設(shè)備。它通過改變電源頻率和電壓來調(diào)整電動(dòng)機(jī)的運(yùn)行速度,實(shí)現(xiàn)對(duì)電機(jī)的控制。
變頻器的工作原理是將交流電源的固定頻率和電壓轉(zhuǎn)換成可調(diào)節(jié)的頻率和電壓輸出。在變頻器內(nèi)部,電源電流首先通過整流器將交流電轉(zhuǎn)換為直流電,然后通過逆變器將直流電轉(zhuǎn)換為可調(diào)頻率的交流電,后供給電動(dòng)機(jī)。通過調(diào)節(jié)逆變器輸出的頻率和電壓,可以實(shí)現(xiàn)對(duì)電動(dòng)機(jī)轉(zhuǎn)速的控制。
變頻器在工業(yè)和商業(yè)領(lǐng)域有廣泛的應(yīng)用,它可以提供以下幾個(gè)主要的優(yōu)勢:
1. 節(jié)能降耗:通過調(diào)整電機(jī)的轉(zhuǎn)速,根據(jù)實(shí)際負(fù)載需求提供所需的功率,從而實(shí)現(xiàn)節(jié)能降耗的效果。特別是在部分負(fù)載運(yùn)行時(shí),使用變頻器可以顯著地減少能耗。
2. 運(yùn)行平穩(wěn):傳統(tǒng)的電阻式調(diào)速方式會(huì)導(dǎo)致電動(dòng)機(jī)轉(zhuǎn)速波動(dòng),而變頻器可以控制電機(jī)的轉(zhuǎn)速,使得運(yùn)行更加平穩(wěn)。此外,變頻器還可以避免電動(dòng)機(jī)起動(dòng)時(shí)的沖擊電流。
3. 調(diào)速范圍廣:變頻器可以實(shí)現(xiàn)電機(jī)的寬頻調(diào)速,通常范圍從幾赫茲到幾千赫茲,可以滿足不同應(yīng)用場景對(duì)轉(zhuǎn)速的需求。
4. 功能豐富:現(xiàn)代的變頻器除了基本的轉(zhuǎn)速控制外,還可以配備各種保護(hù)功能和控制策略,如過載保護(hù)、短路保護(hù)、自動(dòng)換向、編碼器反饋等,提高了設(shè)備的可靠性和運(yùn)行效率。
需要注意的是,使用變頻器時(shí)需要考慮其適用的電機(jī)類型、額定功率和控制要求,以確保匹配和正常運(yùn)行。此外,合理的安裝和維護(hù)也是保證變頻器工作穩(wěn)定和壽命長久的重要環(huán)節(jié)。
16) 桃花之所以寂寞,是因?yàn)樗鼮榍閯?dòng)之人生長;為傷情之人綻放。
————————————————————
DOVER INSTRUMENT SERVO BOARD SMA6520-50 GA6520-12 6520-5002 SMA6520LB-50NEMA Premium Efficiency Severe Duty Motors 00512ET3E215T 5 HP RPM 1200 Frame 215
Parker BLX150F-FIC0-3 BLX150FFIC03 Digiplan
P0997NP
KIT-C-ESQ23CN8A/D-M
DODGE 140DM3A-I-17.1-A1 140DM3AI171A1
DR-1010-000 MODICON DRIVES REMANUFACTURED
ALLEN BRADLEY 1784-KTP NSFP 1784KTP
NIB Danfoss _ 175H1737 3004 _ Variable Speed Drive _ 175H17373004 _ 103110H395Vickers EEA-PAM-533-A-32 EEAPAM533A32 CONTROL CARD
YASKAWA ELECTRIC SGMS-10A6AB SGMS10A6ABDanaher AT010-008-S0 345105552985 AccuTrue Planetary Gear Head 8:1 Ratio
Allen Bradley 2098-DSD-030 Servo DriveTT SERIES MICROMANOMETER DP MEASUREMENT BUCKINGHAM
GE CR2962E2A Plugging Switch
ALL_100 USB Programmer EEPROM FALSH MPU/MCU PLD FPGAGlassman High Voltage Regulated DC 1.0mA, 100KV HVDC Power Supply
LB3150 Westinghouse Type LB Circuit Breaker 3 Pole 150 Amp 600V
OKUMA BL-120E20T BL120E20T
Saftronics GP10E1ST34010B1 [PZ5] Inverter Tested With
CLEVELAND MOTION CONTROL S3002R000018 S3002R000018Modicon XBTF024110 Magelis Operator Interface XBT F024110 24VDC 35W V1.1 3244
Siemens MD63F800 800amp 3pole breaker frame only
AVG UTICOR UT672336 UT672336
METSO VALMETSP MA RL SS SS RDU CONSISTENCY 24V-DC 25BAR TRANSMITTER B251942
Allen Bradley 2711-B6C10/B Panelview 600 2711B6C10 NNB
Square D 45 kVA, 480-480Y/277 V dry type transber
Allen Bradley Module 1747-L541 Series C SLC Processor
OMRON # C200H-TC003 CONVERTER MODULE, NIB
Tektronix TDS 754D 500MHz 2GS/s 4 Ch DPO oscilloscope ## 60##
MAP36450 Square D / Schneider Electric Molded Case ReconditionedSquare D Model 5 21" Size 4 Breaker MCC Bucket 250A KAP3625025M 8502 SFO2 SF02
Elektrim AC Motor, 25 HP, 1800 RPM, 284TC FrameYaskawa Yasnac JANCD-FC190-2 0 S27033-1-10-3 , tested
MITSUBISHI A2USH-CPU-S1 A2USHCPUS1
Reliance 78091-51R Contactor 75amp
FANUC Spindle Board A20B-1003-0010
MINT Allen Bradley 2711P-RP1 /F 2711PRP1 Logic Module
GE FANUC SERVO MOTOR A06B-0148-B675 22/3000DBS Microwave DB97-903R
HP Agilent color 4 GSa/s 1 GHz digital Oscilloscope w 54721A and 54713A pluginsAllen Bradley AC Servo Motor 1326AB-B430E-21-K4
SINEC CP 5431 FMS A1 FOR S5 6GK1-543-1AA01AB Photoswitch 22DJ9-4000 Ser. B NIB
ALLEN-BRADLEY, 1336-BDB-SP29D, CONTROL BOARD, 74101-169-53, REV 22 0701
ALLEN BRADLEY 150-B54NBD SMC SOFT START STARTER AC 40HP 208-480V D211200SQUARE D 8903SQA11V04R62 3 POLE 100 AMP LIGHTING CONTACTOR NEMA 3 277V COIL
PERFORMANCE CONTROLS FLXPSI 170/20 11F0140 11F0098A FLX SERIES POWER SUPPLY card
ly listedHP 54615B Oscilloscope
WESTINGHOUSE 122P453H01B 122P453H01B
THKMA836700 General Electric / GE Molded Case ReconditionedVerity Instruments EP200Msd .2 Meter Monochromator
ABB 6111032-1B MLO-4 94VO YPH 108B/GPC Speed Measurement Board 61080805
Eaton/ Cutler-Hammer DH365FDK HD Safety Switch 400 Amp 600 Volts AC/DC
Mitsubishi E1063 Beijer PLC HMI Screen - 5.7" Touch Screen
Tokyo Seimitsu E-PU621 Pulcom U600 Electronic Micrometer
AB 1336E-BRF50-AN-EN 480V AC/DC 5HP TESTEDQUANTITY
SIEMENS 6SN1123-1AA00-0DA0 POWER MODULE IN A
VICKERS CONTROLLER CARD 35314647A
Toshiba RA22L servo motor