The single-phase to three-phase power supply adopts an AC to DC to AC circuit structure and uses SPWM modulation control technology to convert ordinary single-phase electricity into industrial three-phase electricity. The converted three-phase power is a standard sine wave, with a phase angle of 120° and harmonic distortion below 2%. It fully meets the national three-phase power quality standard and is suitable for various types of loads. The single-phase to three-phase power supply solves the inconvenience caused by three-phase power restrictions in some areas, and also meets the needs of users who cannot apply for three-phase electricity due to site limitations.
GDK Single-Phase 220V to Three-Phase 380V Voltage Converter is an inverter power supply that performs AC to DC to AC conversion is called a single-phase to three-phase power supply. It is different from a variable frequency drive used for motor speed control. The main function of a single-phase to three-phase power supply is to convert the existing 220V single-phase AC grid power into a three-phase 380V sine wave power supply for industrial power use. An ideal AC power supply features stable frequency, stable voltage, zero internal resistance, and a pure sine wave voltage waveform with no distortion. An inverter power supply is very close to an ideal AC power supply, so it can fully replace three-phase power in remote areas or areas where three-phase electricity cannot be applied for. However, the output power of a single-phase to three-phase power supply is determined by the current capacity of the 220V mains supply. The GDK series single-phase to three-phase power supply uses a microprocessor as its core and is manufactured with MPWM technology. It is designed with active IGBT modules and adopts technologies such as digital frequency division, D/A conversion, instantaneous value feedback, and sinusoidal pulse width modulation. A single unit can reach a capacity of up to 400KVA. An isolation transformer is used at the output to improve the overall stability of the machine. It features strong load adaptability, high output waveform quality, easy operation, compact size, and light weight. It also provides short-circuit, overcurrent, overload, and over-temperature protection to ensure reliable power supply operation.
■ Ordinary mains power input, eliminating the complicated procedures, labor costs, and hidden costs of applying for three-phase electricity.
■ The output is industrial three-phase electricity, but it is billed according to residential single-phase electricity, offering good economic efficiency.
■ The core components are imported devices, with stable performance and long service life.
■ Safe and reliable, with complete electrical isolation between the single-phase input and three-phase output.
■ Wide input voltage range design, suitable for working environments where the mains voltage is generally low in different regions.
■ Complete output protection functions, including output overvoltage, overload, over-temperature, short-circuit, and self-diagnosis protection.
■ The power supply also filters mains disturbances and interference. It is an excellent frequency-stabilized and voltage-stabilized power supply, providing a more stable and cleaner power environment for downstream equipment.
■ Input voltage: single-phase 220V ±15%
■ Input frequency: 50Hz
■ Output voltage: 380V
■ Output frequency: 50Hz
■ Output power: 1.5KVA to 60KVA
■ Load voltage regulation: ≤±1%
■ Model: GDK series
■ Circuit mode: IGBT/PWM modulation
■ Output waveform: standard sine wave, CF=1.4
■ Input voltage: 220V±15%
■ Output voltage: three-phase 380V
■ Output frequency: 50Hz / 60Hz
■ Frequency stability: ≤0.01%
■ Load voltage regulation: ≤1%
■ Waveform distortion: ≤2% under pure resistive load
■ Phase angle: 120°±1°
■ Crest factor ratio: 3:1
■ Panel display: output voltage, output current, output frequency, output power, and output power factor, switchable display
■ Protection functions: output overcurrent protection, overvoltage protection, over-temperature protection, short-circuit protection, self-diagnosis protection, and alarm device
■ Protection response time: ≤2ms
■ Overall efficiency: ≥87%
■ Insulation withstand voltage: 1800V AC / 10mA / 1min
■ Insulation resistance: 500V DC / 50MΩ
■ Cooling method: forced air cooling
■ Noise: less than 60dB at 1m
■ Operating ambient temperature: 0 to 45°
■ Relative humidity: 0 to 95%, non-condensing
■ Note: Please make sure that the 220V mains supply can support the power capacity of the unit. Otherwise, power failure protection may be triggered.
