Recently, Chengdu Xingtongli Power Supply Equipment Co., Ltd. successfully delivered a high-power 15V 5000A DC power supply to a UK-based customer. Featuring a 480V three-phase input, this reliable and efficient system provides stable and precise DC output, supporting high-accuracy industrial manufacturing and heavy-duty production processes in the United Kingdom and beyond.
Innovative Design and Reliable Performance
The power supply adopts a modular high-frequency switch-mode rectification design, ensuring stable DC output, low ripple, and high efficiency. With advanced PLC control and a user-friendly touchscreen interface, operators can easily monitor and adjust parameters in real time for optimal machining results.
15V 5000A DC Power Supply Specifications
|
Parameter |
Specification |
| Input Voltage | Three-phase AC 480V ±10%/ Customizable |
| Input Frequency | 50Hz / 60Hz |
| Output Voltage | 15V DC (Adjustable) |
| Output Current | 5000A DC (Adjustable) |
| Rated Power | 75KW (Modular design) |
| Rectification Mode | High-frequency switch-mode rectification |
| Control Method | PLC + HMI (Touchscreen Control) |
| Cooling Method | Air cooling |
| Efficiency | ≥ 90% |
| Power Factor | ≥ 0.9 |
| EMI Filtering | EMI filter reactor for reduced interference |
| Protection Functions | Overvoltage, Overcurrent, Overtemperature, Phase Loss, Short Circuit, Soft Start |
| Transformer Core | Nano-materials with low iron loss & high permeability |
| Busbar Material | Oxygen-free pure copper, tin-plated for corrosion resistance |
| Enclosure Coating | Acid-proof, anti-corrosion, electrostatic spraying |
| Environmental Conditions | Temperature: -10°C to 50°C, Humidity: ≤ 90% RH (non-condensing) |
| Installation Mode | Floor-mounted Cabinet / Customizable |
| Communication Interface | RS485 / MODBUS / CAN / Ethernet (Optional) |
Design Principle
Innovative Circuit Design
The rectifier features an integrated architecture combining rectification and filtering, high-frequency full-bridge conversion, PWM control, voltage and current regulation, as well as protective and auxiliary circuits. This design ensures precise output control and reliable performance across varying industrial loads.
High-Frequency Switching Efficiency
Using high-power IGBT or MOSFET modules driven by isolated PWM signals, the full-bridge stage alternates between two sets of switches to produce high-frequency pulses. These pulses are then stepped down through a high-frequency transformer, delivering power to the load efficiently and consistently.
Reliable Voltage Regulation
In voltage-control mode, the system continuously compares output voltage with a reference signal. Deviations trigger PWM adjustments, maintaining a stable DC voltage even during rapid load changes.
Precise Current Management
The rectifier provides steady current output in current-control mode. If the load exceeds preset limits, the voltage-limiting mechanism ensures the system remains within safe operating conditions.
Safety-Oriented Construction
High- and low-voltage circuits are clearly separated, with conspicuous high-voltage warnings and robust grounding to protect operators and equipment.
EMI and Interference Control
An EMI filter on the AC input reduces electromagnetic disturbances, ensuring stable operation without affecting nearby sensitive equipment.
Advanced Materials for High Efficiency
The main transformer employs nano-material cores with low iron loss and high magnetic permeability, while pure oxygen-free copper windings improve electrical conductivity and efficiency.
Environmental Isolation
Strong and weak current lines are separated at safe distances, and signal circuits are shielded. Control electronics are protected against magnetic interference, dust, and corrosive environments.
Durable Components and Protection
Circuit boards are coated to resist moisture, dust, and corrosion. Power and signal connections are sealed with silica gel, preventing leakage and long-term degradation.
Robust Cabinet Design
The enclosure features acid- and corrosion-resistant coatings with electrostatic spraying, making it suitable for humid or chemically aggressive environments.
User-Friendly Interface
Each module includes AC input switches, current displays, and status indicators. Centralized control via PLC and HMI offers intuitive monitoring and operation.
High-Quality Busbar and Connections
Oxygen-free copper busbars with tin plating are used for all electrical connections, supporting a safe current density of ≤3A/mm² and ensuring long-term conductivity.
Reliable AC Input
The system runs on three-phase AC 480V ±10% using a five-wire configuration, guaranteeing stable input for demanding industrial applications.
Full Protection Suite
AC Line Safeguards: Monitors phase loss, overvoltage, and undervoltage, sending fault alerts to the PLC.
Current Limiting: Protects against overloads and short circuits.
Soft-Start Function: Gradually ramps up current at power-on to prevent surges and mechanical stress.
Principle Sketch
This latest delivery highlights Chengdu Xingtongli’s expertise in supplying high-current, precision-engineered power systems designed to meet the exacting demands of industries worldwide. With the increasing need for advanced, high-accuracy manufacturing, Chengdu Xingtongli Power Supply Equipment Co., Ltd. continues to innovate, providing dependable and cutting-edge solutions that empower industrial productivity and technological advancement.
Post time: Sep-04-2025
