60 visiting now: 61 USA USA flag 6 Singapore Singapore flag 2 China China flag 1 Hong Kong Hong Kong flag 1 UK UK flag 1 France France flag

Highlighted Companies

  • Boom Plus for Manufacturing and Commerce (Egypt): Let us introduce ourselves as a Major foodstuff production and exporting company. We... https://boom-plus.com
  • Verify China Company Service (China): Verify China Company is founded by a group of people who work years in international trade... https://verifychinacompany.com/
  • 2hp 1 5kw Vfd Cheap Price Drives - USA

    price: 200.00 Dollar US$

    Single phase VFD drive normally is used in 200V AC to 240V AC in low power applications, like small pumps.

    The AC motor's input need to be three phase as all of the drives are three phase output.

    In our factory, the 1 phase AC drives, from 0.4kW to 2.2kW.

    1.5kw 2hp vfd 7a 220v single phase variable speed drive vsd drive inverter ac drive inverter with rs-485 communication interface 1.5kw 2hp 7a 220vac single phase variable frequency driver vsd vfd inverter New hy 2.2kw 220v 3hp variable frequency drive vfd inverter output 3 phase 400hz 10a Hot vfd single phase 220v in three phase out at2 frequency converter 750w 0.75kw 5a three phase moto speed controller inverter Vfd007b21a delta vfd-b inverter vfd ac driver 1 phase 220v 750w 1hp 5a 400hz new in box Hy inverter 3kw 220v 13a variable frequency drive vfd inverter 4hp output 3 phase Vfd single phase 1.5kw 220v variable frequency drive inverter output 1 phase vfd.

    A VFD consists of a rectifier/filter section which converts the incoming AC to DC.

    This high-voltage DC is then converted back to AC with additional controls which provide the speed control.

    The problem with single-phase AC power is at the input side of the VFD, the part that converts incoming power to DC.

    When you rectify a three-phase power source, the output voltage from the rectifier never drops below 50% of the peak voltage.

    This makes it real easy to filter and provide pure DC to the rest of the equipment.

    However, when you rectify single-phase power, the output voltage of the rectifier drops to zero 120 times a second.

    The task of filtering this to provide pure DC is much more difficult.

    The standard rule-of-thumb is to derate the VFD by 50% when operating from a single-phase source.

    Thus, if you want to run a 5HP motor, you need a VFD rated for 10HP.

    I would not recommend operation of any VFD on single-phase power unless such usage is proper according to the manufacturer.

    If not discussed in the owner's manual, you can always contact the maker's technical support department and ask for assistance.

    A VFD drive supplied from a 3 phase system will have a bank of rectifiers at the input feeding a capacitor bank.

    The capacitor bank serves two purposes --- to filter some of the input ripple from the rectifiers, and to absorb some energy during deceleration.

    Rectifier-capacitor input filters produce non-sinusoidal pulses of current in the input lines.

    This means the RMS input current is higher than if the same energy was transferred from a DC source.

    If you take a VFD drive designed for a 3 phase input and use it on a single phase system, then the diodes and the filter bank may be under sized.

    This is why you may need a 3 times larger VFD.

    It is not because of the DC to AC conversion electronics, but because of the input diodes and capacitors.


    Company Contact:


    • Phone: +1(310)6421125

    • Address: 8235 W. Sunset Boulevard, Los angeles, California , USA

    • Email: Email


    Published date: August 18, 2016 - Modified date: August 18, 2016

    • Business Description: Installing variable frequency drives (VFD) are one of the easiest ways to save a significant amount of the energy required to run fans and pumps.

      Most fan and pump devices are very inefficient when running at part-load conditions, so installing a VFD drastically reduces the energy consumed during those part-load periods.

      Over the typical life cycle, a VFD greatly reduces the total cost of operation.

      VFDS LLC is a leader among variable frequency drive suppliers.

      Our company concentrates on VFD design and VFD manufacture.

      VFDS LLC is america VFDS Company located in Los angeles.

      Our main focus is creating the highest quality products.

      The main products single phase to three phase VFD, three Phases to three Phase VFD and so on.

      Variable Frequency Drive (VFD) can be used to control the speed of three-phase induction motor.

      A variable frequency drive is a system equipped for controlling the rotational speed of an alternating current (AC) electric motor by controlling the frequency of the electrical power supplied to the motor.

      A VFD drive supplied from a 3 phase system will have a bank of rectifiers at the input feeding a capacitor bank.

      The capacitor bank serves two purposes --- to filter some of the input ripple from the rectifiers, and to absorb some energy during deceleration.

      Rectifier-capacitor input filters produce non-sinusoidal pulses of current in the input lines.

      This means the RMS input current is higher than if the same energy was transferred from a DC source.

      If you take a VFD drive designed for a 3 phase input and use it on a single phase system, then the diodes and the filter bank may be under sized.

      This is why you may need a 3 times larger VFD.

      It is not because of the DC to AC conversion electronics, but because of the input diodes and capacitors.

    Related listings



    • Drill Rod Induction Welding Machine
      Drill Rod Induction Welding Machine
      Equipment - Electrical - Zhengzhou Gous Electromagnetic Induction Heating E - China - August 4, 2016 - 8000.00 Dollar US$

      Specification of drill rod induction welding machine: Model: WH-VI-40 Max output power: 40KW Oscillation frequency: 10-40KHZ Size of host: 460*360*630 Temperature protection: 50 Degrees Celsius Cooling water pressure: 0.1-0.3mpa Color of host and tra...

    • Fc T24 High Speed Annealing Tinning Machine
      Fc T24 High Speed Annealing Tinning Machine
      Equipment - Electrical - Kunshan fuchuan electrical and mechanical co.,ltd - China - August 2, 2016 - 24333.00 Dollar US$

      FUCHUAN ® Normal wire high speed annealing machine Characteristicsï¼ š Easy to operate, good annealing heat preservation, save electricity, achieve industry-leading level. Equipment models FC-T12 FC-T16 FC-T24 FC-T32 FC-T40 Twisting usage Apply for the...

    • Mechanical Type Cable Jacks
      Mechanical Type Cable Jacks
      Equipment - Electrical - Bazhou Lineng Hardware Tools Co.,Ltd - China - July 16, 2016 - 100.00 Dollar US$

      Cable reel stand is a compact solution for spooling heavy drums of power and data cable or conveyor belts. The system comprises of two independent cable stands complete with hydraulic bottle jacks and a high tensile spindle secured in the V block.Wit...



    Safe Trade Tips

    • Ask for business references and check them
    • Use a payment method that offers better protection for all such as Letters of credit and verified professional escrow services. Avoid payments in advance such as money transfers
    • Verify their business via their local Chamber of Commerce
    • Search the internet using their website address, their business name, their phone and fax numbers, and their email addresses to see if you can find any feedback about them.
    • Get to know more about scams and fraud to avoid: Internet Crime Complaint Center - Consumer Financial Protection Bureau
    • This site is never involved in any transaction, and does not handle payments, shipping, guarantee transactions, provide escrow services, or offer "buyer protection" or "seller certification"