Woodward 5437-1124 Protection Module Protech Gii

The Woodward 5437 - 1124 Protech - GII Protection Module is an overspeed protection device designed to safeguard various types of equipment. Here is a detailed introduction:

Function and Application

Overspeed Protection: It's primarily used to safely shut down steam, gas, and hydro turbines, as well as motors, compressors, reciprocating engines, and other equipment when an overspeed or over - acceleration event is detected. It accurately monitors the turbine rotor speed and acceleration through active or passive magnetic pickups (MPUs) and issues a shutdown command to the turbine's trip valve or the corresponding trip system.

Spare Module: It serves as a spare module for the 8237 - 1596 and 8237 - 1600 models in the Protech - GII series, ensuring the continuous operation of the protection system by promptly replacing faulty modules.

Working Principle

The Protech - GII system, which includes the 5437 - 1124 module, uses a triple - modular - redundant architecture and 2 - out - of - 3 voting logic. It collects speed and acceleration data through MPUs, and after processing and analyzing the data in the module, it determines whether the equipment is in an overspeed or over - acceleration state. If an abnormal condition is detected, the module triggers the corresponding shutdown mechanism based on the set logic to protect the equipment from damage.

Structural Characteristics

The Protech - GII consists of three independent modules, and the trip outputs of these modules can be configured as either independent or in a 2 - out - of - 3 voting configuration. The 5437 - 1124 module, as part of this system, has a compact structure and is designed for easy installation and replacement, with an aluminum - alloy housing and stainless - steel internal components, which can adapt to different industrial environments.

Features

Comprehensive Monitoring and Logging: In addition to overspeed and over - acceleration protection, it offers time - stamped alarm and trip logs. It can also indicate whether a test was active during an event and provide first - out indications for trip logs.

Diverse Interface Options: There are multiple ways to interface with the Protech - GII. The front panel enables users to view current values and perform configuration and test functions. Additionally, all front - panel features and most information are accessible via the Modbus interface, and the Programming and Configuration Tool (PCT) software allows for downloading log files and managing settings files on a PC.

High Reliability and Compliance: Designed for critical applications, when installed correctly, it complies with standards such as API - 670, API - 612, API - 611, and IEC 61508 (SIL - 3), ensuring high reliability and safety.