The PTU (Power Terminal Unit) developed by CIMC Digital Power is a core building block of prefabricated modular data centers. Designed around an integrated architecture, it combines power distribution, voltage transformation, power quality management, and protection functions within a single system. The PTU integrates low-voltage switchgear, UPS systems, and lithium-ion battery storage, enabling efficient coordination and precise management of multiple power sources.
As the level of integration in prefabricated power infrastructure continues to increase, so do the requirements for comprehensive factory validation. Testing individual components alone is no longer sufficient to identify potential compatibility issues between interconnected systems or to fully replicate the complexity of real-world operating conditions. To address this challenge, CIMC Digital Power has developed a full-scenario PTU Testing Platform, establishing a comprehensive factory acceptance testing framework that identifies and resolves integration and operational risks before equipment leaves the factory.
The PTU Testing Platform goes beyond conventional component testing by providing integrated, end-to-end system validation tailored to the multi-device, multi-system nature of PTU solutions.
Testing covers system-wide operational logic, cross-module compatibility, and coordinated equipment performance. By validating the complete integrated architecture, the platform helps uncover hidden issues that may not be detected during standalone equipment testing, ensuring PTUs are fully prepared for deployment across a wide range of data center applications.
The testing environment is designed to replicate real data center operating conditions as closely as possible. Supported by a high-capacity medium-voltage power source, a GSU step-up substation module, and GLB load bank modules, the platform can accurately simulate key operating scenarios, including full-load operation, dynamic load transitions, and extended continuous runtime.
Every PTU undergoes comprehensive load testing, coordinated startup and shutdown testing, and long-duration stability verification. By recreating real project conditions in a controlled factory environment, the platform confirms that system performance aligns with project requirements before deployment.
For international data center projects, where spare parts availability, on-site resources, and corrective maintenance can present significant challenges, early-stage validation plays a critical role in reducing project risk.
The PTU Testing Platform enables complete pre-delivery verification covering system performance, control logic, operational sequences, inter-system coordination, and load-carrying capability. This proactive approach minimizes on-site commissioning work, reduces uncertainties during energization, shortens project startup timelines, and lowers the likelihood of rework, improving overall delivery certainty for overseas projects.
To support the growing demand for large-scale deployment of prefabricated modular power infrastructure, the platform operates under a standardized testing framework with consistent test environments, unified procedures, and systematic validation methodologies.
All PTUs are tested against the same system-level acceptance criteria, reducing variability caused by environmental conditions or manual operations. The result is a fully traceable testing process with measurable performance metrics, helping ensure consistency and quality across large-volume project deliveries.
Comprehensive factory validation is a critical foundation for the successful delivery of highly integrated modular power infrastructure.
Through full-coverage testing, high-fidelity operational simulation, and standardized system-level verification, CIMC Digital Power's Full-Scenario PTU Testing Platform identifies and resolves potential integration and operational issues before shipment. The platform provides a strong foundation for the efficient and reliable delivery of prefabricated power solutions for data center projects around the world.
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