5453-279 | Woodward | MicroNet TMR Power Supply Chassis Rev B

Product Description

Mission-Critical TMR Power Infrastructure

The Woodward 5453-279 (Revision B) is a high-availability Triple Modular Redundant (TMR) Power Supply Chassis designed as a cornerstone component for the MicroNet TMR control system. This chassis provides the mechanical and electrical framework for independent power paths, ensuring that the control system remains fully operational even in the event of a power supply module failure. Engineered for maximum fault tolerance, the 5453-279 is essential for high-stakes applications like steam turbine governing and emergency shutdown systems where unplanned downtime is not acceptable.

Fault-Tolerant Design and Power Distribution

The architecture of the 5453-279 facilitates a "hot-swap" environment where power supply modules can be managed without interrupting the system's logic or I/O performance. It supports a wide universal input range of 110–380 V AC/DC, allowing for versatile deployment in global power plants and offshore platforms. The internal bus bars and connectors are rated for high-current distribution (up to 30 A), featuring integrated load-sharing capabilities that balance the thermal stress across all active power paths. This balanced distribution significantly enhances the overall Mean Time Between Failures (MTBF) for the entire MicroNet rack.

Detailed Technical Specifications

The following technical data details the electrical, mechanical, and operational parameters for the 5453-279.