LS Electric 38 kV Switchgear for a Fuel Cell Data Center

Introduction

Under a contract announced on October 13, 2026, LS Electric will supply 38 kV switchgear and distribution transformers for a data center project in Pennsylvania.
The approximately $138.5 million supply contract is associated with a facility supported by Bloom Energy that will use fuel cell power generation.
According to the published schedule, equipment delivery is expected between April and July 2027.
From an engineering perspective, the main issue is the coordination of protection and operating states across the on-site generation, utility grid, and critical loads.

The significance of the announcement extends beyond a high-value equipment supply contract. When a data center integrates on-site generation into its medium-voltage distribution system, power flow direction, fault behavior, grounding conditions, and restoration sequences may all change. These issues cannot be managed adequately using individual equipment data sheets alone. The entire electrical system must be assessed across all planned and abnormal operating states.

Who is this announcement relevant to, and why?

The published project information describes the supply contract; the detailed single-line diagram, protection philosophy, and operating modes have not been disclosed.

The topic is primarily relevant to data center operators, facility managers, electrical designers, project owners, technical procurement teams, and commissioning teams. It is particularly important for organizations planning critical infrastructure that includes medium-voltage networks, on-site generation, or multiple power sources.

The technical focus is not on the benefits that fuel cells may offer in isolation. The key question is how the generation system integrates with the switchgear, transformers, UPS system, backup power supply, and data center operating procedures. The published summaries do not provide the project's single-line diagram or protection philosophy. The following points are therefore engineering assessment considerations, not descriptions of the facility's verified design.

On-site generation cannot be treated simply as another incoming supply. Fault conditions, grounding, selectivity, and every possible operating state must be assessed together.

What happened according to the announcement?

Under the published contract, LS Electric will provide 38 kV switchgear and distribution transformers for a data center development in Pennsylvania. Sources describe the project as a fuel cell data center supported by Bloom Energy. The contract is valued at approximately $138.5 million, with delivery expected from the second quarter into the early part of the third quarter of 2027.

A safe approach starts with a protection study documented for each operating mode, followed by coordinated FAT, SAT, and integrated system testing.

The publicly disclosed scope of supply indicates that integrating on-site generation requires substantial medium-voltage infrastructure. However, the existence of the contract alone does not establish whether the facility is intended for continuous grid-parallel operation, isolated operation, or multiple transitional operating modes. These functions can be assessed only from the approved designs and operating requirements.

Why is an architecture with on-site generation different?

In a conventional data center supply arrangement, the protection concept is generally based on defined power-flow directions and clearly identified sources. When on-site generation is connected, power may be supplied from multiple directions. Protection must therefore operate correctly in every permitted switching state.

Fault levels and power flow

Designers must determine the expected fault currents and their direction for each operating mode. They must verify the interrupting ratings of the switchgear, assess the effect of the transformers, and confirm that the protection relays can detect faults with the required sensitivity. Evaluating only the maximum fault level is not sufficient. Conditions involving lower fault currents may also prevent fast and selective fault clearance.

Grounding and ground-fault protection

The behavior of the grounding system may depend on the connected sources, transformer connections, and current network configuration. The design must establish how ground-fault current changes during utility-supplied operation, on-site generation, and any permitted isolated state. Ground-fault protection settings must address this complete range of operating conditions.

What does this mean for operations?

A more complex power architecture introduces more automated decisions and a greater number of possible transitional states. Operating documentation must clearly define what happens during a utility disturbance, source failure, transformer fault, switchgear maintenance event, or unsuccessful reclosing attempt.

If the design requirements include grid-parallel operation, the interconnection conditions, power-flow control, and separation logic must be verified. If the concept also includes island operation, frequency and voltage control, load-step response, auxiliary power supply, and safe return to the utility grid must be assessed separately.

On-site generation does not automatically eliminate the need for a UPS or other backup systems. The ride-through capability, startup behavior, load-change response, and maintenance states of each technology must be evaluated against the actual requirements of the critical load.

Protection coordination and control logic

The selectivity study must cover more than the nominal topology. At a minimum, normal utility operation, partial on-site generation, operation with one transformer unavailable, an open ring connection, and every permitted maintenance configuration should be treated as separate cases.

Relay settings must be coordinated with circuit-breaker operating times, transformer protection, and selectivity at lower voltage levels. At the same time, the control system must prevent unauthorized paralleling and hazardous backfeed. A common time reference for event logs is also essential because reliable post-event analysis of a complex trip sequence requires accurate timestamps.

Common mistake: validating each item of equipment separately

A common project risk is verifying the compliance of the switchgear, transformer, generating unit, and control system separately without testing their interfaces as a complete system. A successful factory acceptance test does not prove that on-site communications, interlocks, timing, and restoration functions will operate correctly together.

Applying a single set of protection settings can also be a mistake when the network may operate in several significantly different states. Protection that trips too quickly may disconnect an unnecessarily large part of the system, while slow or insensitive protection may increase the risk of equipment damage and the consequences of an arc fault.

Commissioning and maintenance requirements

During the FAT, the relay logic, communications, interlocks, and control sequences should be verified. The on-site SAT should also cover the installed wiring, polarities, instrument transformer circuits, circuit-breaker operation, and remote indications.

During integrated system testing, source loss, separation, load transfer, and controlled restoration should be verified using defined scenarios. Tests must be designed to avoid placing live critical loads at risk. In an operational data center, this requires phased execution, an approved switching program, and a documented restoration plan.

Maintainability must be evaluated during the design phase. Important questions include whether a switchgear section, transformer, or protection device can be isolated without losing the required level of redundancy, and whether safe access, an appropriate spare-parts strategy, and a regular relay and circuit-breaker testing plan are in place.

Recommended next step

Organizations preparing a similar project should begin by developing an operating-mode matrix. This should document the permitted states of every source, switch, transformer, and bus connection, together with the protection and control requirements for each state.

This should be followed by load-flow, short-circuit, grounding, selectivity, and arc-energy studies, as well as a detailed description of the control functions. The procurement specification should clearly separate the responsibilities for the manufacturer's FAT, the on-site SAT, and integrated testing of the complete power supply chain.

In Digital Technologies' engineering approach, switchgear selection is only one part of the task. A reliable outcome requires a coordinated single-line design, protection philosophy, operating scenarios, phased commissioning, and a lifecycle-based maintenance plan.

Conclusion

LS Electric's announced order demonstrates that integrating on-site fuel cell generation into a data center requires substantial medium-voltage infrastructure and system-level engineering coordination. The 38 kV switchgear and distribution transformers are important components, but availability ultimately depends on the coordinated performance of protection, grounding, control, and restoration functions.

For project owners, the main lesson is that every possible operating state must be modeled during design and then verified through progressive testing. This approach reduces the risk that an apparently redundant power architecture will introduce a hidden common point of failure.