Incoming Line & Switchgear
Utility incoming line, main switch and feeder circuits, with protection and metering units.
OVERVIEW
The power supply chain formed in the factory
The power module consolidates transformation, uninterruptible power and end busway within a prefabricated enclosure, completing wiring, protection settings and power-on testing before shipment; on-site work only requires incoming line connection and protection coordination confirmation.
The power architecture is configured to availability targets: single busway, dual incoming lines, or generator-backed schemes can be adopted, with transfer devices enabling failover.
Metering and alarm data are uploaded centrally, making it easy to correlate power, temperature and workload information on the cluster control plane.
COMPOSITION
Module Composition
Key equipment and systems are factory-installed, piped and tested.
UPS & Batteries
Provides uninterruptible power for critical loads, capacity configured to backup time requirements.
Transfer Devices
Automatic and static transfer switches enable power source failover.
Busway & Feeders
Distributes power to the IT and cooling modules, supporting per-circuit metering.
Grounding & Protection
Grounding system, surge protection and isolation measures configured to local codes.
Monitoring & Metering
Circuit current, voltage, power and alarm data connected to the cluster control plane.
COMPARISON
Comparing the three module types
A quick look at how IT, cooling, and power modules differ and where each applies; specific parameters should be confirmed with site conditions and project evaluation.
| Dimension | IT MODULEIT Module | COOLING MODULECooling Module | POWER MODULEPower Module |
|---|---|---|---|
| Core role | Houses GPU racks, network equipment, and cold-plate liquid cooling piping — the direct carrier of compute capacity. | Collects heat from the IT side and rejects it outdoors, maintaining the temperature conditions equipment requires. | The complete chain from utility grid connection to rack power supply, ensuring continuity and metering of power. |
| Key components | Racks, cable trays and structured cabling, cold-plate manifolds, rack PDUs, environmental monitoring points. | Pump sets, heat exchangers, filtration and fluid make-up units, outdoor heat rejection equipment, water quality and flow monitoring. | MV/LV switchgear, transformers, UPS and batteries, busways and backup power transfer devices. |
| Key parameters to consider | Rack power density, number of racks, cooling method (cold-plate/air-liquid hybrid), network architecture. | Heat exchange capacity, supply/return water temperature and flow, free-cooling hours, PUE design target. | Incoming voltage level, total capacity, redundancy level, backup duration and transfer method. |
| Typical applicable scenarios | Added compute capacity, GPU platform upgrades, rack re-planning for training or inference scenarios. | High power-density liquid cooling deployments, free cooling in cold-climate sites, retrofits where existing cooling capacity is insufficient. | Access to renewable or hydro power, phased campus expansion, retrofits of existing facilities with limited power distribution capacity. |
| Interfaces with other modules | Connects to the cooling module's secondary supply/return water and the power module's busway feed, with unified monitoring integration. | Supplies water to the IT module, draws power from the power module, and feeds cooling capacity and water temperature data into monitoring. | Supplies power to the IT and cooling modules, with metering and protection data fed into monitoring. |
| Expansion approach | Add module units as compute demand grows, keeping the internal design of existing units unchanged. | Add pump sets and heat rejection units per thermal load, or add cooling modules. | Add power distribution units or increase incoming capacity as needed, releasing supply capacity in phases. |
CONFIGURATOR
Power Module Configurator
Choose the incoming feed, backup configuration, redundancy level and backup runtime to generate a recommendation summary and matching interface list.
Recommendation summary
Incoming feed: Single utility feed
A single utility feed lowers investment and footprint, with supply continuity relying on backup and UPS configuration.
Backup configuration: With generator backup
Generator backup with automatic start transfer sustains critical loads during extended outages; fuel storage, exhaust and noise control need to be planned for.
Redundancy level: N+1
Critical equipment is configured N+1, balancing availability and investment, suited to most AI compute clusters.
UPS backup runtime: Short (bridging to backup)
The UPS is configured for short backup runtime to bridge the generator start-up process, with lower footprint and battery investment.
The above is directional guidance based on your selections; final capacity, equipment models and parameters need to be confirmed against site conditions and project evaluation.
Interface list (7 items)
- Incoming interface: single medium-voltage switchgear, including metering, protection settings and cable terminations.
- Backup interface: generator incoming switchgear and automatic transfer control signals.
- Auxiliary interface: connection points for fuel supply, exhaust and fire-protection interlock.
- Distribution interface: N+1 redundant low-voltage output circuits with protection coordination.
- UPS interface: battery cabinet connection and backup runtime/transfer parameter configuration.
- Monitoring interface: energy metering, switch status and alarm data uploaded to the cluster control plane.
- Grounding interface: connection point between the module grounding grid and the site grounding system, per local codes.
DATASHEET
Key parameter summary & document download
The summary below covers the module's main interfaces and configurable range; the full "Interfaces & Technical Parameters" document (in Chinese) is available to download.
- Incoming feed
- Single or dual utility feed
- Backup configuration
- Optional generator backup with automatic transfer
- Redundancy level
- N, N+1 or 2N dual-path architecture
- UPS backup
- Short bridge to backup or extended for orderly shutdown
- Incoming interface
- Medium-voltage switchgear, including metering and protection settings
- Output interface
- Low-voltage busway or cable to the IT module
- Grounding & protection
- Module grounding grid connected to the site grounding system
- Monitoring interface
- Energy metering, switch status and alarms
Determined by site power conditions
Determined by business continuity requirements
Determined by availability target
Determined by operations strategy
Executed per local codes
Supports per-path metering
Grounding method per local codes
Uploaded to the cluster control plane
Power Module | Interfaces & Technical Parameters
Document No. XA-PW-IFC | Rev. A | Updated 2026-09
The document (issued in Chinese) covers module composition, external interface definitions, configurable ranges and on-site interconnection points, for design and engineering teams to review.
Download PDF (Chinese)Parameters in the document describe the configurable range; specific values need to be confirmed against site conditions and project evaluation.
FAQ
Power Module FAQ
The answers below are based on publicly available product information; specific parameters need to be confirmed against site conditions and project evaluation.
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Need a solution and parameters for a specific site? Pleasebook a technical discussionor visit thefull FAQ pageto learn more.
DIAGRAM & SITE
Diagram & On-site View
Schematic and physical views side by side for engineering review.
CONFIGURATION
Configurable Options
The following parameters are determined during project evaluation based on site conditions and business scale.
- Incoming Line
- Single or dual utility incoming lines, determined by site power conditions.
- Backup Configuration
- Optional generator backup and automatic transfer, determined by business continuity requirements.
- UPS Backup Time
- Configured according to critical load scope and operations strategy.
- Redundancy Level
- N, N+1 or dual-path architecture selected based on availability targets.
- Code Compliance
- Voltage class, protection settings and grounding method follow local codes.
INTERFACES
External Interfaces
Modules connect via standard interfaces, requiring no on-site redesign.
- Incoming line interface: utility or customer substation incoming line, with metering and protection coordination requirements.
- Feeder interface: busway or cable circuits supplying power to the IT and cooling modules.
- Backup interface: generator connection point and transfer device control circuit.
- Monitoring interface: circuit power data, switch status and alarm data connected to the cluster control plane.