AC Frequency Converter VFD Three Phase to Single Phase

SPX high quality AC Frequency Converter VFD Three Phase to Single Phase In workshops, family farms, old shops, or remote sites, a typical electrical dilemma can be solved: there is only a 220V single-phase power supply on site, but the core equipment that needs to be driven (such as water pumps, fans, machine tools) is a standard three-phase 380V motor. Traditional solutions (replacing motors, installing phase converters) often have high costs, low efficiency, or limited functionality. It is not just a frequency converter, but also an intelligent "power translator" and "power optimizer", fundamentally reconstructing the possibility of obtaining and using electricity.

Features:

Built in dedicated rectification and inverter modules efficiently and stably reconstruct the input single-phase AC power into pure three-phase AC power output, directly driving standard three-phase asynchronous motors that were originally unusable without the need to modify the motor itself.
Thoroughly eliminating the huge single-phase surge current during direct starting of three-phase motors, protecting the power grid and equipment mechanical structure, is particularly important for the limited load capacity of single-phase power sources.
Accurate speed adjustment can be performed on the motor to meet the process requirements. For loads such as fans and pumps, flow and pressure control can be achieved through speed regulation, which can achieve significant energy-saving effects (usually up to 20% -40%) compared to valve and baffle throttling.
Integrated overcurrent, overload, overvoltage, phase loss, short circuit and other protection functions, wholesale AC Frequency Converter VFD Three Phase to Single Phase provides more comprehensive electronic protection for motors than simple thermal relays.

Working principle

Single phase 220V input → rectification and filtering to DC → intelligent control unit (MCU) sends PWM signal → inverter module inverts DC to 0-380V (line voltage), adjustable frequency three-phase AC output.
Input: single-phase 220V ± 15%; Output: Three phase 0-380V (corresponding to 0-motor rated frequency).
Usually covering 0.75kW to 7.5kW, meeting the needs of small and medium power equipment. Due to the limitation of single-phase input current, there is generally an upper limit to the maximum output power.
Supports V/F control, and some models support simple vector control to ensure good torque output capability at low speeds.
Strengthen the design of rectification and filtering circuits in response to the characteristics of high single-phase input current; The output side is fully compatible with standard three-phase motor wiring.

Application

Drive three-phase motors for small lathes, milling machines, drilling machines, and air compressors to achieve specialization in home workshops or individual repair shops.
High quality AC Frequency Converter VFD Three Phase to Single Phase is used for power supply of deep well pumps, irrigation pumps, feed mixers, and ventilation fans, solving the problem of difficulty in connecting three-phase electricity to farmland and pastures.
Drive the three-phase motors of small outdoor units for central air conditioning, large catering exhaust fans, and hotel laundry equipment for energy-saving renovation or equipment replacement.
AC Frequency Converter VFD Three Phase to Single Phase provides flexible power supply for three-phase motors in mobile inspection stations and exhibition demonstration equipment.

G1.5KW Technical Data