data center power solutions

The TH Power Series 10kV Prefabricated Medium-Voltage Direct Power Supply System is an innovative power supply solution tailored by Tonghe Technology specifically for large-scale data centers. With 10kV medium-voltage input as its core, the system employs an integrated design to deeply integrate 10kV/0.4kV dry-type transformers with HVDC (High-Voltage Direct Current) systems. This creates a fully prefabricated power supply architecture that delivers highly reliable and energy-efficient power assurance for digital infrastructure. Compared to traditional solutions, it reduces the required footprint while enabling productization and standardization of engineering components. The system supports mass production and rapid on-site assembly, thereby shortening construction and commissioning timelines.

The HVDC system is a critical component of the power supply system in data centers. It converts alternating current (AC) into direct current (DC) within the data center, supplying power directly to IT equipment such as servers through a DC bus. The system typically includes AC cabinets, rectifier cabinets, DC cabinets, and battery banks. The system is connected to two 380V AC power sources. When the AC power is normal, the HVDC module rectifies the 380V AC into a 240V DC supply, which is then distributed through the DC distribution cabinet to power IT equipment and charge the battery bank. In the event of AC power failure, the battery bank provides emergency power to IT equipment until the diesel generator in the data center is activated.

The system is equipped with a 10-inch touch screen monitoring system, supporting multiple host communication protocols such as Modbus/TCP, YD/T 1363.3, and HTTP, ensuring compatibility with back-end system integration.

The system uses a discrete cabinet structure, with separate cabinets for AC, rectifier, and DC distribution, offering a high degree of pre-fabrication to meet the demands for rapid project delivery. It is suitable for medium to large IDC data centers, supercomputing centers, smart factories, and financial sectors. Users can select different capacity configurations based on actual project requirements.

• The modular design of the HVDC system allows for easy module replacement in case of a failure, enabling on-site personnel to quickly resolve issues. This shifts the role of maintenance personnel to active problem solvers, instead of being passive responders.
• The system adopts a modular hot-swappable design for ease of maintenance, with reserved rack spaces for future expansion.
• The HVDC system uses a floating output electrical structure combined with insulation detection to minimize the risk of electric shock.
• Unlike traditional UPS systems, the HVDC system does not suffer from output load imbalance, a common issue with three-phase UPS systems that require load balancing.
• The battery is directly connected to the DC bus, eliminating energy conversion losses. When the main power distribution system is down, the battery can provide direct power to the equipment.