AC Frequency Converter 220v to 380v

In many workshops, farms, or old buildings around the world, 220V voltage is a common power supply standard, while a large number of efficient and reliable three-phase industrial motors require 380V power supply. The traditional bulky and inefficient step-up transformer scheme can only change the voltage and cannot control the motor. The SPX factory's CE-certified AC Frequency Converter 220v to 380v has completely broken this technological deadlock. It is a "power reshaping center" that integrates voltage conversion, variable frequency speed regulation, and intelligent control, allowing you to unleash the full performance potential of standard three-phase motors without replacing the motor on the basis of a 220V power grid, and enjoy all the benefits brought by modern speed regulation technology.

Features:

The customized AC Frequency Converter 220v to 380v first rectifies the input 220V AC power into DC, which is then controlled by a microprocessor. Through advanced IGBT inverter modules, it synthesizes pure and stable three-phase 0-380V, frequency adjustable sine wave AC power. This is not only an increase in voltage, but also an intelligent reconstruction of power quality and form.

Directly driving inventory or the most popular standard 380V three-phase asynchronous motor on the market protects your existing investment in motor assets, avoiding the high cost and scarcity of purchasing special models of motors to adapt to low voltage.

Thoroughly eliminate the severe impact on the 220V power grid when the motor is directly started (the starting current can reach 5-7 times the rated value), prevent tripping, and significantly reduce the mechanical stress on the transmission mechanism. The built-in comprehensive electronic protection function (overcurrent, overload, overvoltage, overheating, etc.) provides dual protection for the motor.

Realize continuous and smooth adjustment of motor speed. For water pumps and fans, AC Frequency Converter 220v to 380v can adjust the flow and air volume according to actual needs, replacing inefficient valves and baffles, achieving significant energy savings (usually up to 25% -50%); For machine tools and conveyor belts, the processing speed and production cycle can be optimized.

Technical Path and Core Features

Working principle: 220V AC input → rectification and filtering (forming a stable DC bus) → microprocessor outputs PWM control signal according to the setting → IGBT inverter bridge inverts DC into three-phase variable frequency and variable voltage AC power → outputs to 380V motor.

Key specifications:

Input power supply: compatible with single-phase 220V or three-phase 220V (depending on the specific model), with strong adaptability.
Output voltage: Three phase 0-380V (line voltage) corresponds to 0-rated frequency (such as 50Hz/60Hz).
Control core: Using V/F control or open-loop vector control to ensure stable torque output over a wide frequency range, even at low speeds, with ample power.
Power range: typically covering 0.75kW to 22kW, meeting the power needs of small and medium-sized equipment to some medium-sized machinery.

Application

Export manufacturers design equipment for 380V regions (such as China and Europe) to operate in markets with only 220V power grids (such as some countries in the Americas and Asia) without the need to modify the motor for power supply.
Provide power to newly added standard equipment such as CNC machine tools, mixers, hydraulic pumps, etc. in old factories, warehouses, and laboratories with only 220V three-phase or single-phase incoming lines.
To provide power for deep well pumps, irrigation systems, and grain processing machinery in remote areas, AC Frequency Converter 220v to 380v utilizes existing low-voltage transmission lines to drive high-power equipment.
The central air conditioning cooling pump and mall ventilation system using a 380V motor will undergo frequency conversion energy-saving renovation. However, when the on-site main power supply is only 220V, this solution can directly utilize the original motor.

G1.5KW Technical Data