Power Busway Interposer for Live Busway Extension

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Solution Overview

Problem

Existing data center infrastructure faces challenges in rapidly scaling computing capacity due to resource-intensive processes and safety risks associated with extending power busway assemblies, which require significant time and resources for design, installation, and maintenance, while ensuring continuous power distribution to rack computer systems.

Innovation Solution

A power busway interposer system that allows incremental extension of power busway assemblies by coupling energized and de-energized segments, using separate connectors and switching devices to maintain power distribution and safety, enabling reversible adjustment and incremental installation without disrupting operational power.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If power busway assemblies are extended to increase data center capacity, then computing capacity and power distribution capability are improved, but installation time and resource requirements increase significantly

Engineering Contradiction:
Improvedata center capacityVSAvoidinstallation time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The power busway system is divided into modular segments that can be independently installed and connected. Each segment contains standardized connectors and switching devices, allowing the system to be extended incrementally without requiring complete system shutdown or complex reconfiguration. This modular approach enables rapid deployment of additional power capacity as computing needs expand.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Switching devices are pre-configured and positioned within the busway segments before installation. The connectors and electrical components are prepared in advance, allowing segments to be quickly coupled together without requiring complex on-site configuration. This preliminary preparation significantly reduces installation time and resource requirements when expanding data center power capacity.

Inventive Principle:
Principle #10Preliminary action

2Length of stationary object

If power busway segments are coupled to extend the assembly, then power distribution reach is improved, but safety risks increase due to coupling energized and de-energized segments

Engineering Contradiction:
Improvebusway assembly lengthVSAvoidsafety risks
Core Design Contradiction:
Length of stationary objectVSObject-affected harmful factors

Solution Approach 1:

Switching devices serve as intermediaries between energized and de-energized busway segments during coupling operations. These switching devices can isolate electrical circuits, allowing physical connection of segments without creating dangerous electrical arcs or shock hazards. The switching mechanism mediates the transition between electrical states, enabling safe extension of the power distribution system.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The switching devices are configured to prevent harmful electrical interactions before they can occur during segment coupling. By pre-positioning the switching mechanism in appropriate states and designing the coupling procedure to activate switches at critical moments, the system prevents arcs, shocks, and other safety hazards that would otherwise occur when connecting energized and de-energized segments.

Inventive Principle:
Principle #9Preliminary anti-action

3Length of stationary object

If traditional power busway installation methods are used, then power distribution is achieved, but continuous power supply to operational racks cannot be maintained during extension

Engineering Contradiction:
Improvebusway assembly lengthVSAvoidcontinuous power supply
Core Design Contradiction:
Length of stationary objectVSReliability

Solution Approach 1:

The switching devices within the busway segments provide dynamic electrical connectivity, allowing the system to reconfigure power paths in real-time during extension operations. When new segments are coupled, the switching mechanism dynamically redirects power flow to maintain continuous supply to operational racks while integrating new capacity. This dynamic control enables system expansion without service interruption.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The switching devices are controlled to maintain continuous power flow to operational racks throughout the segment coupling process. By coordinating the switching actions with the mechanical coupling sequence, the system ensures that power distribution to active equipment never中断, while new segments are seamlessly integrated into the power network. This continuous action approach eliminates downtime during expansion.

Inventive Principle:
Principle #20Continuity of useful action

4Object-affected harmful factors

If complete power shutdown is performed to safely couple busway segments, then safety is improved, but downtime and loss of computing capacity increase

Engineering Contradiction:
Improvesafety during couplingVSAvoidcomputing capacity availability
Core Design Contradiction:
Object-affected harmful factorsVSProductivity

Solution Approach 1:

Switching devices act as intermediaries that enable safe coupling of busway segments without requiring complete system shutdown. These devices isolate specific circuit paths during connection operations, protecting operators from electrical hazards while maintaining power flow through alternative paths to operational equipment. This intermediary mechanism eliminates the need to sacrifice productivity for safety during expansion.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The switching mechanism dynamically reconfigures electrical connectivity during segment coupling, selectively energizing and de-energizing specific circuits as needed for safe installation. This dynamic control allows the system to maintain power supply to operational racks while safely integrating new segments, thereby preserving computing capacity availability throughout the expansion process.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3161911B1Power busway interposer
Publication Date: 2025.03.26 AMAZON TECH INC
  • EP3161911B1 patent drawingFigure 1
  • EP3161911B1 patent drawingFigure 2
  • EP3161911B1 patent drawingFigure 3A~3B

AI summary

A power busway interposer (220) enables a power busway assembly (200) of energized busway segments (210A-B) to be extended, via coupling additional busway segments to the assembly (200), while maintaining energization of the assembly. As a result, a power busway assembly (200) providing power support to electrical loads can be extended while maintaining power support to the electrical loads. The interposer (220) includes separate sets of connectors that couple with separate busway segments and a switching device which selectively electrically couples the connectors, so that a power busway connector can be de-energized while another separate power busway connector is coupled to an energized busway segment and then subsequently energized. Extending the power busway assembly (200) can include coupling separate sets of connectors to separate busway segments, where the separate sets of connectors are electrically isolated, and adjusting the switching device to electrically couple the separate sets of connectors, so that power is distributed between coupled busway segments.