Comprising a PLC control cabinet, reduction transformer, power cabinet for the reduction furnace (integrating high-voltage initiation modules and switching devices), and a host computer or DCS, DQPRAS enables centralized control of local or entire workshop reduction electrical systems via a communication network. It seamlessly manages the full process of high-voltage initiation and silicon core reduction growth. Our company offers primary solutions for 30, 36, 40, 48, and 60 pairs of silicon rods, and can also customize special electrical systems to meet specific client requirements.
1. Proprietary Technology Stack
Complete Intellectual Property: DQPRAS boasts proprietary control software, hardware, components, and integration technologies, ensuring unparalleled reliability and innovation.
2. Superior Control Performance
Stability & Precision: The system features a stable control mechanism with high precision (±0.1% accuracy) and rapid response times, guaranteeing consistent and efficient operation.
3. Innovative Operational Features
AC Lamination & Dual-Voltage Operation: Utilizes alternating current lamination technology, enabling high-voltage breakdown and low-voltage operation for optimized energy efficiency.
Multi-Circuit Independent Breakdown: Supports simultaneous and independent breakdown of multiple circuits, significantly enhancing production efficiency.
Dual-Closed-Loop “Constant Current & Voltage Limiting”: Maintains stable current and voltage levels, preventing overloads and ensuring process stability.
4. Advanced Diagnostic & Protection Functions
Fault Wave Recording: Captures detailed data during faults, facilitating precise root-cause analysis.
Oscilloscope Function: Provides real-time visual monitoring of operational status for intuitive troubleshooting.
Dual SCR Protection: Combines electronic and fast-fuse protection to safeguard thyristors against failures.
Intelligent Ground Fault Detection: Distinguishes accurately between single-phase, inter-phase, and silicon powder ground faults through advanced software algorithms.
Full-Process Protection: Automatically adjusts protection settings based on real-time operation, ensuring comprehensive safety throughout the process.
Electrode Insulation Auto-Protection: Monitors and protects electrode insulation, preventing electrical leakage and extending equipment lifespan.
Parameter | Specification |
Power Mode | Voltage-limited constant current operation, multi-voltage lamination output |
Initiation Method | High-voltage self-initiation |
Number of Silicon Rod Pairs | 24, 36, 40, 48, 60, 72 pairs or customized |
Output Current | AC 0 - 3000A |
Output Voltage | AC 0 - 2800V |
Control Power Supply | AC 220/380V |
Synchronous Power Supply | AC 100V |
Output Control | Fiber optic trigger control for power cabinet output adjustment |
Control System | PLC fully automated intelligent control |
Stability Accuracy | ±0.1% |
Power Factor | > 0.95 |
Harmonic Content | Meets GB/T14549-1993 Power Quality requirements for harmonic currents and voltages |
Operation Mode | Continuous long-term operation |
System Composition | 3 - 6 power cabinets/set, 1 control cabinet/set |
Cooling Method | Water cooling for power cabinets, air cooling for other components |
Protection Functions | Temperature, water flow, water immersion, RC snubber, grounding, crack, short circuit, overcurrent, half-wave protection, etc. |
Dimensions (W×D×H) | 800×2400×2200 mm (including maintenance channel) |
· Silicon Manufacturing Industry: Ideal for polysilicon and monocrystalline silicon production plants, optimizing the reduction furnace process for higher yield and quality.
· Renewable Energy Sector: Supports the production of silicon-based materials for solar panels, contributing to the growth of clean energy.
· High-Tech Material Production: Suitable for manufacturing advanced semiconductor materials and other high-purity silicon products, meeting strict industry standards.
Q1: What differentiates DQPRAS from other silicon reduction furnace power systems?
A1: DQPRAS stands out with its proprietary technology stack, advanced control features like multi-circuit independent breakdown and intelligent protection algorithms, and superior stability with ±0.1% accuracy.
Q2: Can the system handle different silicon rod configurations?
A2: Yes, DQPRAS supports various configurations from 24 to 72 pairs of silicon rods and can be customized to meet specific client requirements.
Q3: How does the system ensure energy efficiency?
A3: The AC lamination technology enables high-voltage breakdown for quick startup and low-voltage operation during normal production, reducing overall energy consumption. The high power factor (> 0.95) also minimizes power loss.
Q4: What is the response time in case of a fault?
A4: The system’s rapid response mechanisms, combined with real-time monitoring and fault wave recording, allow for immediate detection and analysis of faults, ensuring minimal downtime.
Q5: Does DQPRAS comply with international standards?
A5: While certified to meet strict Chinese national standards (GB series), DQPRAS’s performance parameters also align with global industry benchmarks, making it suitable for international projects.