Prefabricated Power Distribution Unit Solution for Data Centers

The Rockwell Energy data center prefabricated power distribution unit integrates medium-voltage incoming lines, transformers, and low-voltage distribution into a factory-tested steel frame.

It supports N+1 redundant operation with dual transformers and dual low-voltage sections, enabling rapid scalability as the data center is commissioned in phases. Its open-frame design facilitates easy inspections and reduces fault-repair time.

I. Why Data Center Power Distribution Needs Prefabrication

• The electrical link is long (medium voltage → transformer → low voltage → rack), resulting in a lengthy on-site installation period and numerous concurrent operations.
• Phased commissioning requires capacity to scale incrementally with IT workload.
• High-density data centers have stringent requirements for power supply continuity and maintainability; any single point of failure must be controllable.

II. Standard Product Platform (Committed Values)

III. Traditional Switchgear Room vs. Rockwell Energy Prefabricated Switchgear Unit (Quantitative Comparison)

IV. Engineering Configuration and Reliability Design

• N+1 redundancy switching logic: Two transformers + two low-voltage sections operating in segregated mode, serving as mutual backups; when one section is under maintenance, the other section carries the entire load. The switching logic has been factory-verified.
• Fire Protection and Safety: Dry-type transformers are preferred (no oil-related risks, compliant with IEC 60076-11); oil-immersed transformer solutions feature oil tanks linked to fire protection systems; temperature monitoring devices are installed on busbars.
• Communication and Monitoring: Remote measurement, remote signaling, and remote control for the entire substation; IEC 61850 / Modbus integration with environmental monitoring and DCIM systems; alarm correlation and linkage.
• Installation method: Outdoor open-type (natural air cooling) or indoor/container-type (selected based on site conditions).

V. Acceptance Criteria (Verifiable)

Six: Why Choose Rockwell Energy?

• Redundant logic factory validation: The dual-transformer, dual-segment switching logic has undergone joint commissioning at the factory, ensuring zero commissioning risks on-site.
• Fire compliance upfront: Dry-type and oil-immersed transformer solutions should be selected in advance according to the data center’s fire safety requirements, thereby avoiding secondary modifications.
• Digital foundation: The 61850/Modbus point table is delivered along with the equipment, minimizing the workload for dynamic environmental integration.
• Rapid capacity expansion: Phased construction with modular replication; single-point commissioning does not affect ongoing operations.