DQPRAS Fully Digital Polysilicon Reduction Power SupplyPower Supply
DQPRAS is a self-developed, fully digital power supply system for polysilicon reduction furnaces. It adopts leading technology to optimize electrical-thermal balance, simplify structure and enhance reliability, supporting 30-60 rod furnace configurations and controlled by central PLC/DCS.
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AC stacking technology, high-voltage breakdown via low-voltage operation, and multi-loop independent control with dual closed-loop. Advanced functions include fault waveform recording, dual-thyristor protection, and intelligent ground-fault identification, ensuring precise and safe reduction process control.
Core Advantages & Features
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Core Tech IntegrationPossesses core software, hardware, and component technology.
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Precise Fast ControlStable control with high precision and fast response.
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Technical Parameters
| Basic Parameters | |
|---|---|
| Power supply mode | Constant current operation with voltage limitation, multi-voltage stack output |
| Startup method | Traditional high-voltage startup / high-voltage white startup |
| Number of silicon rod pairs | 24 pairs, 36 pairs, 40 pairs, 48 pairs, 60 pairs, 72 pairs, and customized according to customer requirements |
| Output current | AC 0~3000 A |
| Output voltage | AC 0~12 kV |
| Control power supply | AC 220/380 V |
| Synchronization power supply | AC 100~380 V |
| Output | Fiber optic trigger control, regulating power cabinet output |
| Control | PLC fully automatic intelligent control |
| Stability accuracy | +0.1% |
| Power factor | >0.95 |
| Harmonic content | Complies with GB/T14549-1993 "Power Quality - Harmonics in Public Supply Network" requirements for current and voltage harmonics |
| Operation mode | Continuous operation |
| Power regulation system composition | 3~6 power cabinets/set, 1 control cabinet/set |
| Cooling method | Water cooling for power cabinets, air cooling for others |
| Protection functions | Temperature, water flow, immersion, RC, grounding, cracks, short circuit, overcurrent, half-wave, etc. |
| Reference dimensions (w*d*h) | 800mm*2400mm*2200mm (including maintenance access） |
The company consistently maintains robust innovative vitality, standing at the forefront of the industry and driving its advancement. Through cutting-edge technologies and products, it achieves goals of energy conservation, environmental protection, quality enhancement, and consumption reduction, continuously contributing to the development of a resource-efficient and environmentally friendly society.
