Westinghouse 5X00226G02 | Power Module, In Stock

Description

Product Introduction

The Westinghouse 5X00226G02 is a power supply module designed for the Ovation distributed control system, originally manufactured by Westinghouse and now supported by Emerson. This module provides regulated DC power to Ovation I/O cards, controller modules, and backplane electronics. It mounts directly into an Ovation chassis and is a critical component for any Ovation I/O cabinet or controller rack.

The Ovation DCS remains the backbone for many fossil and nuclear power plants, as well as large-scale industrial facilities. The 5X00226G02 is a legacy power supply from the Westinghouse era that has been superseded by newer Emerson revisions. For plants running original Ovation systems, sourcing this specific revision is critical because newer power supplies may have different form factors, connector types, or backplane compatibility. We stock these units specifically to support outage maintenance and emergency replacements.

Key Technical Specifications

Key Selling Points & Differentiators

• Legacy System Support: Direct replacement for original Westinghouse Ovation installations. No chassis modifications or wiring changes required when replacing a failed unit with the same part number.
• Dual Output Capability: Provides both 24 V DC for field I/O power and 5 V DC for backplane logic from a single module, simplifying power distribution within the Ovation chassis.
• Redundant Configuration: When installed in pairs, the 5X00226G02 supports 1:1 redundancy with automatic failover. If one supply fails, the second supply continues operation without interrupting I/O or controller function.
• Hot-Swap Capability: In redundant configurations, a failed power supply can be replaced without powering down the chassis. This is critical for maintaining uptime during outage windows or unplanned failures.
• Authenticity Guarantee: Each unit undergoes visual inspection for Westinghouse OEM markings, serial number traceability, and PCB integrity. We do not sell counterfeit or refurbished units with unknown history.

Frequently Asked Questions (FAQ)

Q: Is the Westinghouse 5X00226G02 discontinued?
Yes. Westinghouse was acquired by Emerson, and the Ovation product line has since evolved. The 5X00226G02 is a legacy power supply no longer in active production. Emerson supports newer power supplies such as the 5X00481G01 or 5X00706G01 series, but this specific Westinghouse revision is available only through surplus channels. If your system is original Westinghouse Ovation, this is the correct drop-in replacement.

Q: Can I use a newer Emerson Ovation power supply instead of this one?
Not directly. Newer Emerson power supplies may have different physical dimensions, different connector interfaces, or require different backplane configurations. If your Ovation chassis was designed for Westinghouse-era power supplies, installing a newer Emerson supply may require chassis modifications or an adapter kit. We recommend verifying compatibility with Emerson or replacing the entire chassis assembly if migrating to newer power supplies.

Q: What is the difference between the 5X00226G02 and the 5X00226G01?
The -G02 revision represents a later manufacturing revision with improved component sourcing and minor electrical updates. The -G02 is backward-compatible and can replace any earlier revision (including -G01) without modification. If your system currently uses a -G01 module, the -G02 is a direct drop-in replacement.

Q: Does this power supply support both AC and DC input?
The standard 5X00226G02 accepts AC input only (100 to 240 V AC). If your facility uses DC power distribution (125 V DC or 250 V DC), you need a different power supply variant such as the 5X00227G01 or a DC-to-DC converter. Verify your existing power supply input type before ordering.

Q: Can I hot-swap this power supply in a running Ovation system?
Yes, but only if the system is configured with redundant power supplies. In a simplex configuration (single power supply), the chassis must be powered down before removing the supply. In a redundant configuration, you can remove and replace one supply while the chassis remains powered. However, during the swap, the remaining supply must have sufficient capacity to handle the full chassis load. We recommend verifying load calculations before performing a hot-swap.

Q: What are common failure modes for this power supply?
In our experience, the most common failures are:

• Capacitor aging causing output ripple or voltage drift
• Input fuse failure due to power surges
• Fan failure (if equipped; some revisions have internal fans)
• Connector corrosion in high-humidity environments

We recommend testing output voltages periodically during scheduled outages and keeping a spare on hand for critical chassis.

Q: What testing do you perform before shipping?
We test every 5X00226G02 on a live Ovation chassis or dedicated power supply test rig. Our test procedure includes:

• Visual inspection for physical damage, corrosion, or previous repairs
• Input voltage tolerance testing (90 to 264 V AC range)
• Output voltage verification under load (both 24 V and 5 V rails)
• Ripple and noise measurement
• 24-hour continuous power-on soak test
• Redundancy functionality (if two units are ordered)

A test report with measured voltages and load test results is included with each shipment.

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