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Home > Electrical & Electronics > Electrical Control System > Woodward 8237-1597 Speed Protection Module

Woodward 8237-1597 Speed Protection Module

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Negotiable MOQ: 1 Piece (Price negotiable depending on order volume and customization)

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Guizhou Yuanmiao Automation Equipment Co., Ltd.

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Woodward 8237-1597 Speed Protection Module

The Woodward 8237-1597 overspeed protection module is a high-performance overspeed detection system, mainly used to protect the safe operation of various types of turbines. The following is a detailed introduction to its functional characteristics, working principle, advantages and application fields:

Functional Characteristics

Overspeed and Acceleration Detection: It can monitor the rotor speed and acceleration of equipment such as steam, gas and water turbines. When an overspeed or excessive acceleration event is detected, it can trigger a shutdown command to safely shut down the turbine.
Multiple Output Configurations: It is equipped with dual redundant trip relay outputs (adopting a two-out-of-three voting architecture), or three independent non-voting trip relay outputs with separate alarm relays. It also provides 4-20mA speed reading and Modbus communication functions, facilitating integration into any turbine safety system.
Automatic Overspeed Testing: It can be configured to perform regular automatic overspeed tests. Each module can conduct tests in sequence, using an internal frequency generator to simulate overspeed conditions, and record and report test results.
Sensor Detection: The speed sensor input of each module uses a special MPU (magnetoelectric speed sensor) open-wire detection circuit. It verifies whether the MPU is correctly connected before the turbine operates, and verifies the MPU function through a special stall detection logic during operation.

Working Principle

It real-time monitors the speed and acceleration of the turbine rotor through active or passive MPU magnetoelectric speed sensors, converts the speed signal into an electrical signal and transmits it to the inside of the module. The module analyzes and processes the received speed signal, calculates the actual speed and acceleration values, and compares them with the preset overspeed and acceleration thresholds. When the actual value exceeds the threshold, the module will trigger the internal circuit, output a signal through the trip relay, send a shutdown command to the turbine's trip system, and make the turbine emergency stop, thereby realizing the overspeed protection function.

Advantages and Features

High Reliability: Adopting a three-module design, users can easily replace one of the modules while the turbine is running online. The backplane plug-and-play structure enhances the convenience of replacement, and the modules have a learning function. At the same time, a special conformal coating material is used, which can effectively resist H₂S and SO₂ gas corrosion, and can work stably for a long time in the IEC 721-3-3 1994 environmental class 3C2.
High Precision and Fast Response: It can accurately measure the speed, respond quickly to overspeed events, and issue a shutdown command in a short time, effectively protecting the equipment.
Flexibility and Configurability: Protection parameters can be flexibly set according to different equipment and application requirements. Functions such as acceleration detection can also be configured according to actual needs. It also supports multiple output modes and communication protocols, facilitating integration with different turbine safety systems.
Powerful Diagnostic and Recording Functions: It has advanced diagnostic functions and can monitor its own health and performance status in real time. At the same time, it can record all trips, alarms, trip valve response times and overspeed events, with a maximum of the last 50 sensing trips or alarm events and the last 20 overspeed events recorded, which is convenient for fault and maintenance.

Application Fields

Power Industry: It is suitable for various steam turbines, gas turbines and water turbines, which can ensure that the generator set is not damaged due to overspeed during operation, and ensure the stability and safety of power supply.
Oil and Gas Industry: It can be used for turbines driving equipment such as compressors and pumps, providing overspeed protection for equipment under complex working conditions, and preventing production interruption or safety accidents caused by equipment failures.
Other Industrial Fields: Such as in the papermaking, iron and steel industries, it is used to protect related turbine-driven equipment, ensuring the continuity of industrial production processes and equipment safety.

Product Tags: 8237-1597