The new Xuji ZZG23A-30220 high frequency switch rectifier DC screen charging module is original

The full-bridge phase-shifted resonant soft switching technology is adopted, which greatly reduces the heat generation of the switch tube, greatly reduces the operating temperature rise of the rectifier module, and achieves an efficiency of over 94%; The soft switching operation mode reduces the electrical stress borne by the switching power transistor, making it safer to work, greatly improving the reliability of the rectifier module.

2. Three-phase three-wire system voltage input, three-phase current balance. Combined with the application of power factor correction technology PFC, the input current of the rectifier module is close to a sine wave, greatly reducing the pollution of harmonic components to the power grid, and has good electromagnetic compatibility (meeting the requirements of GB/T19826-20 for electromagnetic compatibility).

The application of low-voltage differential hardware autonomous current sharing technology can enable multiple parallel modules to evenly bear the load current, extending the life of a single module. Using the hardware of the module itself to achieve the current sharing function, the current sharing speed is fast and the accuracy is high. When the monitoring module exits due to a fault, the current sharing effect will not be affected.

4. The self cooling series modules adopt an integrated connector structure and fully support hot plugging, enabling the rectifier module to be freely plugged and replaced online without cutting off the AC power supply, making maintenance more convenient and efficient. At the same time, the module shell adopts an aluminum zinc coated composite structure, which is naturally cooled, noiseless, and dust-free.

5. The air-cooled series modules adopt a unique fully isolated and dustproof structure, and the airflow with dust can only pass through the isolated air duct. At the same time, the printed circuit board of the module is specially sprayed, which has the functions of corrosion prevention, mold prevention, and dust prevention, greatly improving the working reliability.

6. The single module has complete functions, including automatic voltage and current stabilization, output voltage and current setting, no limit current regulation, operation status indication, output voltage and current display, input overvoltage, undervoltage, phase loss protection, output overvoltage and overcurrent protection, power module overtemperature protection, and temperature controlled fan automatic speed regulation (air-cooled series modules).

7. Adopt a centralized and distributed control mode that does not rely on upper monitoring. Normally, the rectifier module is controlled by upper monitoring; When the monitoring module exits abnormally, the rectifier module automatically enters the safe working mode and operates according to the preset float voltage value, so that the entire system can still operate normally.

Module Technical Indicators

XJ ZZG23A-20220 high-frequency switching rectifier power supply ZZG23-20220

Input voltage: 304V~456V, three-phase three-wire system.

2. Output voltage: 220V Module: 180V~290V; 110V module: 90V~150V.

3. Voltage stabilization accuracy: ≤± 0.2%.

4. Steady current accuracy: ≤± 0.5%.

5. Ripple coefficient: ≤ 0.1%.

6. Current sharing imbalance: ≤± 3%.

7. Full load efficiency: ≥ 94%.

8. Power factor: ≥ 0.95.

9. Acoustic noise: ≤ 50dB.

10. MTBF: ≥ 100000 hours.

11. Operating weight: ZZG12 self cooling series: ≤ 15Kg; ZZG13 air-cooled series: ≤ 30Kg.

12. Working temperature: - 5 ℃~40 ℃.