800 VDC Rack Research and Development Laboratory for 1MW AI Data Center Racks

Project Overview

  • $19.5 Million Program Value
  • 800 VDC 1-MW AI Rack Server Research Facility for International Client
  • 12 Rack Test Positions

Project Overview

Summit designed a system integration test lab with racks powered from DC distribution at 250 kW each, capable of expansion to 1-MW racks in the future.  Design included rack-level liquid cooling and supporting process utilities. The lab’s 12 test positions required a distribution architecture distinct from Summit’s standard AC test-rack designs, engineered specifically for DC-powered system integration testing.

Customer identity, site designation and product line are confidential and have been omitted in accordance with the terms of Summit’s engagement.

Complex Design Requirements

  • DC power distribution engineered to serve 12 test positions at 250 kW each — a specialized architecture distinct from Summit’s standard AC test-rack designs
  • Rack-level liquid cooling and CDU sizing matched to 250 kW-per-rack DC equipment heat rejection
  • Controls, interlocks and disconnect procedures adapted specifically for a DC-powered test environment

Summit Delivery — Responsiveness That Drives Customer Success

A specialized DC-power test environment is not a standard rack-test design, and this program required Summit’s engineers to move quickly to adapt standard rack-cooling and safety-interlock approaches to an unfamiliar distribution architecture. Summit’s responsiveness in working through those non-standard requirements let the customer move its system integration test program forward without being slowed by an unusual electrical configuration.

Engineering Capabilities

Mechanical

  • Rack-level liquid cooling for 12 test positions at 250 kW per rack, served by a dedicated CDU

Electrical

  • DC power distribution engineered to serve each of 12 test positions at 250 kW
  • 3 MW of test capacity with dedicated safety interlocks and disconnect procedures for DC-powered equipment

Plumbing

  • Liquid-cooled TCL drops and per-rack manifold assemblies sized for 250 kW heat rejection
  • Process utility distribution supporting system integration and test operations

Technology

  • Controls and monitoring integration tailored to a DC-powered test environment, coordinated with the customer’s test-rack control system
  • Points lists and safety interlocks specific to DC distribution and disconnect procedures