World Of Controls understands the criticality of your requirement and works towards reducing the lead time as much as possible.
8445-1026 - ProTech-GII Emergency Overspeed Protection Module is available in stock which ships the same day.
8445-1026 - ProTech-GII Emergency Overspeed Protection Module comes in UNUSED as well as REBUILT condition.
To avail our best deals for 8445-1026 - ProTech-GII Emergency Overspeed Protection Module, contact us and we will get back to you within 24 hours.
TECHNICAL SPECIFICATIONS:
Part Number: 8445-1026
Manufacturer: Woodward
Series: ProTech-GII
System Type: Emergency Protection / Overspeed Trip
Architecture: Triple Modular Redundant (TMR) - 2-out-of-3 Voting
Input Power: 18–32 VDC (Standard Industrial)
Speed Inputs: 3 Passive or Active Magnetic Pickups (MPU)
Relay Outputs: 3 Independent Trip Relays, 1 Alarm Relay
Response Time: < 12 Milliseconds
Configuration: PC-based Config Tool / Front Panel HMI
Communication: Modbus RS-485 / Ethernet
Operating Temp: -20 °C to +60 °C (-4 °F to +140 °F)
Availability: In Stock
Origin: United States
FUNCTIONAL DESCRIPTION:
The 8445-1026 is a high-integrity Woodward ProTech-GII safety system designed to provide comprehensive overspeed protection for steam, gas, and hydro turbines. As an emergency trip device, it operates independently of the primary turbine governor to ensure the safety of the asset and personnel in the event of a catastrophic control failure. This specific model is a standard flush-mount unit designed for installation in control cabinet doors.
TRIPLE MODULAR REDUNDANCY (TMR)
The core of the Emergency Overspeed Protection Module is its Triple Modular Redundant architecture. It utilizes three independent, isolated sensing and logic branches to monitor turbine speed. The internal 2-out-of-3 voting logic ensures that if any single component or sensor fails, the protection remains active without causing a nuisance trip. This design provides the highest level of reliability and availability for critical industrial infrastructure.
ULTRA-FAST RESPONSE AND DIAGNOSTICS
The ProTech-GII features a response time of less than 12 ms, allowing it to detect an overspeed condition and initiate a trip signal before the turbine reaches dangerous mechanical limits. Furthermore, the Emergency Overspeed Protection Module performs continuous self-diagnostics and online testing of its internal relays and speed sensing circuits, ensuring the system is ready to act whenever required.
USER-FRIENDLY INTERFACE AND LOGGING
Equipped with a front-panel HMI, the Emergency Overspeed Protection Module allows operators to view real-time speed, status alarms, and trip history without external tools. The system records First Out trip data, providing a sequence-of-events log that is invaluable for post-trip forensic analysis. Configuration is secured with a password to prevent unauthorized changes to critical safety setpoints.
WHY BUY FROM WOC:
World of Controls supports the safety-critical operations of your power plant by offering the 8445-1026 in both UNUSED and REBUILT conditions. Each ProTech-GII unit undergoes exhaustive functional testing, including simulated overspeed scenarios and relay voting verification. We maintain a ready-to-ship inventory of Woodward safety systems to support your emergency outages and scheduled maintenance. With global logistics and 24/7 technical expertise, WOC is your trusted partner for high-reliability turbine protection hardware.
What is the Woodward 8445-1026?
The 8445-1026 is a ProTech-GII emergency overspeed protection system. It is a TMR-based safety device that trips the turbine if it exceeds a predefined safe speed.
Does this unit support Modbus communication?
Yes, the Emergency Overspeed Protection Module includes an RS-485 port for Modbus RTU communication, allowing you to integrate speed data and alarm status directly into your plant's DCS or SCADA system.
Can I replace an older ProTech-203 with this model?
The ProTech-GII is the modern successor to the legacy ProTech-203 series. While it offers significantly enhanced features and diagnostics, you should consult with a WOC technical specialist to review wiring and mounting differences for a successful retrofit.
