AC-DC High-Power DC Power Supply: Industrial-Grade Power Conversion

I. Three-phase 380V Input: The Cornerstone of Industrial-Grade Power Transmission
The three-phase 380V power supply system achieves efficient electricity transmission through three phase lines with a 120° phase difference, offering the following advantages:

High Power Handling Capacity: Three-phase power can drive high-power loads such as large motors and laser equipment, reducing current losses by 50% compared to single-phase systems and lowering cable costs by over 30%.
Stability and Balance: The balanced current characteristics ensure smooth equipment operation, minimising voltage fluctuations' impact on precision instruments. This is particularly suited for power-quality-sensitive applications like semiconductor manufacturing and industrial robotics.
Wide-Range Adaptability: Maintains stable operation across grid fluctuations from 260-500VAC or during temporary power scenarios, meeting complex environmental demands such as tunnel construction and marine power systems.

II. Constant Current/Constant Voltage/Constant Power Tri-Mode Output: A Breakthrough in Precision Power Control
This power supply overcomes the limitations of traditional single-mode units by achieving intelligent tri-mode switching:

Constant Current Mode: Delivers stable output for applications requiring precise current control, such as electroplating and battery testing. Current accuracy reaches ±0.5%, ensuring process consistency.
Constant Voltage Mode: Maintains stable voltage during LED driver applications and power supply ageing tests, preventing voltage fluctuations caused by load variations and safeguarding sensitive electronic components.
Constant Power Mode: Automatically adjusts voltage and current in dynamic load scenarios like charging stations and laser cutting, delivering constant power output to enhance energy utilisation efficiency.

III. High Efficiency ≥95%: The Energy Revolution for Green Industry
Employing advanced Power Factor Correction (PFC) and synchronous rectification technology, conversion efficiency exceeds 95%:

Energy Savings and Cost Reduction: Compared to conventional power supplies, energy consumption is reduced by 10%-15%. Taking a 100kW unit as an example, annual electricity savings exceed RMB 100,000, aligning with national ‘dual control of energy consumption’ policy requirements.
Optimised Thermal Management: High-efficiency operation minimises heat generation. Combined with an air-cooling system (boosting heat dissipation efficiency by 40%), this extends component lifespan and reduces maintenance costs.
Grid-Friendly Operation: Power factor ≥0.99 and harmonic distortion rate <5% minimise grid pollution. Suitable for demanding applications such as data centres and precision manufacturing where power quality is critical.

IV. Air-Cooled Heat Dissipation and Intelligent Communication: Dual Assurance of Reliability and Intelligence

Air-Cooled Heat Dissipation System: Featuring a dual-layer mesh ventilation design complemented by intelligent fan speed regulation technology, it operates stably across a broad temperature range of -30°C to 70°C. Heat dissipation efficiency is enhanced by 30% compared to conventional designs, ensuring sustained high-load operation of the power supply.
RS485/CAN Dual Communication Interfaces: Supports remote monitoring and system integration. RS485 is suitable for industrial control networks (1200m transmission distance, 32 node capacity), while CAN bus is ideal for high-reliability applications such as automotive electronics and aerospace (featuring error detection and automatic retransmission mechanisms). This enables real-time power supply status monitoring, fault early warning, and remote control.
V. Multi-layered Protection Mechanisms: The Ultimate Safeguard for Secure Operation
Integrated quadruple protection against overcurrent, overvoltage, overtemperature, and short circuits:

Overcurrent Protection: Output is cut within 0.1 milliseconds when current exceeds set thresholds, preventing escalation of faults like motor stall or short circuits.
Overvoltage Protection: Automatically isolates circuits during abnormal voltage spikes, shielding precision instruments from high-voltage surges.
Overtemperature Protection: Temperature sensors monitor in real time; if temperatures exceed limits, power is reduced or cut off to prevent thermal runaway incidents.
Short-Circuit Protection: Millisecond-level response cuts off short-circuit currents; combined with resettable fuses, it enables automatic restoration after fault clearance.

VI. Industry Applications and Future Trends
This power supply demonstrates broad applicability across industrial automation, new energy, aerospace and other sectors:

Industrial Automation: Drives servo motors and PLC controllers, ensuring continuous and stable operation of production lines.
New Energy Sector: Serves as the core power source for photovoltaic inverters and energy storage converters, supporting scenarios such as DC fast charging and battery testing.