Product Description
Product Overview
The WOODWARD 8444-1091 is a ProTech Overspeed Protection Device, specifically a measuring and overspeed protection module designed for safety-critical applications in industrial power systems, such as turbines and compressors. Manufactured by Woodward, a leader in energy control solutions, this device is part of the ProTech series, which utilizes Triple Modular Redundancy (TMR) architecture to ensure high reliability and fault tolerance. The 8444-1091 operates with a 120 VAC/DC power supply and features three independent speed-sensing units, each with its own power supply, interface, and alarm system, configured in a 2-out-of-3 voting scheme to detect and prevent overspeed conditions. It supports modular design for hot swapping and testing without shutting down the prime mover, making it ideal for continuous operation in industries like oil and gas, power generation, and manufacturing.
Technical Information
| Item | Specifications |
|---|---|
| Manufacturer | WOODWARD |
| Series | ProTech |
| Model/Part Number | 8444-1091 |
| Description | ProTech Overspeed Protection Device |
| Input Voltage | 120 VAC/DC |
| Speed Sensing | 3 independent units with MPU (Magnetic Pickup) inputs |
| Voting Logic | 2-out-of-3 (TMR) |
| Power Consumption | 20 W maximum |
| Operating Temperature | -20 °C to +60 °C (-4 °F to +140 °F) |
| Dimensions | 263 mm H x 58 mm W x 28 mm D (10.35 in x 2.28 in x 1.10 in) |
| Weight | 0.43 kg (0.95 lb) |