Where It’s Used
- Workshops, home factories and commercial premises lacking three-phase service
- Rural, remote or temporary sites (farms, field operations)
- On-site renewables: convert PV or small wind output to three-phase for local loads
- Retrofit projects where applying for three-phase supply is impractical or costly
Key Benefits & Features
- True sine-wave three-phase output — THD < 2% for smooth motor and sensitive equipment operation.
- High conversion efficiency — SVPWM control and premium IPM deliver efficiencies > 93% and low no-load losses.
- Fast transient response — output stabilizes within 50 ms to handle load changes.
- Robust protection — built-in short-circuit, overload and over-temperature protection for safe continuous operation.
- Power frequency isolation transformer — isolates AC and DC buses to eliminate interference and improve safety.
- User display & diagnostics — LCD reports input DC voltage, output frequency/voltage, power (kWh), runtime and fault codes.
- Cost-effective — uses standard single-phase billing while supplying industrial three-phase loads — avoids three-phase application hassles and fees.
- Cleaner mains — filters out disturbances and provides cleaner power for downstream equipment.
- Long service life — industrial components and cooling design for extended reliability (design life > 15 years under normal conditions).
TECHNICAL PARAMETERS
| Model | DZW-1.5KVA | DZW-2.2KVA | DZW-3KVA | DZW-4KVA | DZW-5.5KVA |
| DZW-7.5KVA | DZW-8.5KVA | DZW-11KVA | DZW-15KVA | DZW-20KVA | |
| DZW-25KVA | DZW-30KVA | DZW-40KVA | DZW-50KVA | DZW-60KVA | |
| Phase | three-phase, three-wire / three-phase, four-wire | ||||
| Response speed | 10ms | ||||
| Adjustment speed | 100V/S | ||||
| Circuit Method | IGBT / PWM Modulation | ||||
| Output waveform | Standard sine wave CF=1.4 | ||||
| Output Current | Phase Current High Grade 41A Low Grade 82A | ||||
| Frequency stabilization | ≤0.01% | ||||
| Load Voltage Stabilization | ≤1% | ||||
| Waveform Distortion | ≤2% (pure resistive load) | ||||
| Phase Angle | 120°±1° | ||||
| Protection reaction time | ≤2ms | ||||
| Efficiency | ≥87% | ||||
| Power | 1500VA | 2200VA | 3000VA | 4000VA | 5500VA |
| Size(mm) L*W*H | 270*430*350 | 270*430*350 | 270*430*350 | 270*430*350 | 270*430*350 |
| N.W(kg) | 17.5 | 17.5 | 17.5 | 17.5 | 17.5 |
| Power | 7500VA | 8500VA | 11KVA | 15KVA | 20KVA |
| Size(mm) L*W*H | 580*355*620 | 580*355*620 | 580*355*620 | 580*355*620 | 580*355*620 |
| N.W(kg) | 34 | 34 | 34 | 35.5 | 37 |
| The size and weight vary depending on the voltage range, and are subject to the customized actual product. | |||||
How to Choose the Right Model
- Match continuous motor load (kW/kVA): pick a converter with continuous output ≥ the motor’s rated kW plus startup surge margin (motors often need 2–3× starting current).
- Consider duty cycle: frequent starts/stops or long heavy loads may require a larger unit or enhanced cooling.
- Check environment: outdoor or dusty sites require higher IP rating and filtered air intake.
- Verify supply capacity: the converter’s output is limited by available 220V input current — ensure mains can supply the required input amps.
- Installation & grounding: follow local electrical code; recommend a qualified electrician for wiring and earthing.
FAQ
Q: Can this run induction motors and compressors?
A: Yes — the DZW is optimized for motor loads. Because it produces a low-distortion sine wave, motors start and run smoothly. For large motor starts, size the converter to allow starting surge (consult the technical sheet).
Q: How is this different from a rotary phase converter?
A: Unlike rotary converters, the DZW uses solid-state conversion (SVPWM inverter) to produce a stable, low-distortion three-phase sine output close to utility quality — better for sensitive electronics and variable-speed drives.
Q: Will it save me money?
A: It can be more economical than applying for three-phase service (installation fees, upgraded wiring). However, energy consumption depends on loads — the unit converts what you draw from single-phase mains, so size and usage determine cost.
