GDK
GDK Single-Phase to 3-Phase Converter
Phase convert 220V single-phase AC to pure 3-phase 380V sine wave power.
Industrial-grade converter using IGBT/PWM technology. Delivers stable 380V pure sine wave output with isolation transformer and full safety protections.
Product Positioning & Principle
Product Positioning & Principle
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🔌
Single-Phase Input
220V AC Grid Power
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➜ |
⚙️
AC-DC-AC Inverter
MPWM & IGBT Technology
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➜ |
⚡
Three-Phase Output
380V Pure Sine Wave
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How is it different from a VFD?
Variable Frequency Drive (VFD)Designed for motor speed control. Output varies in frequency and voltage to control motor speed. |
GDK Series
Single to 3-Phase ConverterDesigned for industrial power supply. Converts 220V single-phase into stable 380V three-phase sine wave power. |
| ✓ Pure Sine Wave | ✓ Zero Waveform Distortion | ✓ Fully Replaces 3-Phase |
Core Technology & Hardware
Core Technology & Hardware
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💻
Microprocessor CoreUses a microprocessor as its core and is manufactured with advanced MPWM technology for precise power control. |
⚡
Active IGBT ModulesAdopts digital frequency division, D/A conversion, instantaneous value feedback, and sinusoidal pulse width modulation. |
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🔄
Isolation TransformerEquipped with an isolation transformer at the output stage to significantly improve overall machine stability. |
📊
High CapacityA single unit can reach a capacity of up to 400KVA, providing strong load adaptability for heavy-duty use. |
Key Advantages & Efficiency
Key Advantages & Efficiency
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✓
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Highly Cost-Effective: Eliminates the complicated procedures and labor costs of applying for three-phase electricity. Outputs industrial power but is billed at residential single-phase rates. |
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✓
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Premium Quality & Longevity: Built with imported core components, ensuring highly stable performance and a long service life for demanding industrial environments. |
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✓
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Wide Input Voltage Range: Specifically designed to operate reliably in different regions, even in working environments where the mains voltage is generally low. |
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✓
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Clean Power Supply: Effectively filters mains disturbances and interference, providing a more stable and cleaner power environment for your downstream equipment. |
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✓
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Compact & Adaptable: Features strong load adaptability, high output waveform quality, and a compact, lightweight design for easy installation. |
Safety & Protection
Safety & Protection
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🛡️
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Ultra-Fast Protection ResponseThe system triggers comprehensive safety mechanisms in ≤ 2ms, ensuring the safety of both operators and equipment. |
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⚠️
Overvoltage Protection |
⚡
Overcurrent Protection |
🔥
Over-temperature |
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⚙️
Overload Protection |
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Short-Circuit Protection |
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Self-diagnosis & Alarm |
Complete Electrical IsolationGuarantees total safety and reliable operation between the single-phase input and three-phase output. |
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Main Technical Parameters
Technical Specifications
| Parameter | Specification |
|---|---|
| Core Electrical Characteristics | |
| Model | GDK Series |
| Circuit Mode | IGBT / PWM Modulation |
| Input Voltage | 220V ± 15% |
| Output Voltage | Three-phase 380V |
| Output Frequency | 50Hz / 60Hz |
| Output Power Range | 1.5KVA to 60KVA |
| Output Waveform | Standard Pure Sine Wave (CF = 1.4) |
| Frequency Stability | ≤ 0.01% |
| Load Voltage Regulation | ≤ 1% |
| Waveform Distortion | ≤ 2% (under pure resistive load) |
| Phase Angle | 120° ± 1° |
| Overall Efficiency | ≥ 87% |
| Display & Protection | |
| Panel Display | Output Voltage, Current, Frequency, Power & Power Factor (Switchable) |
| Protection Functions | Overvoltage, Overcurrent, Overload, Over-temperature, Short-circuit, Self-diagnosis & Alarm |
| Protection Response Time | ≤ 2ms |
| Insulation Withstand Voltage | 1800VAC / 10mA / 1min |
| Insulation Resistance | 500VDC / 50MΩ |
| Environment & Physical | |
| Cooling Method | Forced Air Cooling |
| Noise Level | < 60dB (at 1 meter) |
| Operating Temperature | 0°C to 45°C |
| Relative Humidity | 0 to 95% (Non-condensing) |
Panel Interface & Design
Panel Interface & Design
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