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WOODWARD 8237-2597 high-precision industrial control systems
The Woodward 8237-2597 belongs to the ProTech-GII series of overspeed protection devices. It is an independent safety overspeed protection module designed specifically for rotating machinery such as steam turbines, gas turbines, and water turbines. It adopts a three-module 2-out-of-3 voting architecture to achieve highly reliable overspeed/excess acceleration monitoring and safe shutdown. It is widely used in industrial scenarios with stringent safety redundancy requirements, such as power generation, oil and gas, chemical industry, and shipbuilding. It is a core component of turbine safety protection systems.
Email: xmxblynn@163.com
Phone: +86 18059884797
Make/Model:WOODWARD 8237-2597
Country of Origin: made in the USA
H.S Code: 85389000.00
Gross Weight & Net Weight.
Port of shipment：XIAMEN
Delivery period: 1-2 weeks
Validity period: 30 days
Core Functions
* **Overspeed and Over-acceleration Monitoring:** Real-time acquisition of rotor speed and acceleration signals via active/passive magnetoelectric sensors (MPUs) accurately identifies overspeed and over-acceleration anomalies, triggering tiered alarms and shutdown commands with millisecond-level response times to prevent runaway accidents.
* **Three-Module Redundant Voting Control:** Built-in three completely independent monitoring modules employ a 2-out-of-3 voting logic. Failure of any module does not affect the overall protection function. Faulty modules can be diagnosed and replaced online, meeting high safety redundancy standards.
* **Tiered Protection and Safe Shutdown:** Supports multi-level threshold settings (early warning, alarm, emergency shutdown). In case of an anomaly, it drives the turbine trip valve/trip system to execute a safe shutdown, while simultaneously outputting a dry contact alarm signal to the central control system, achieving local and remote linkage protection.
* **Self-Diagnosis and Status Monitoring:** Built-in comprehensive self-diagnostic function monitors module status, sensor signals, power supply, and relay outputs in real time. In case of a fault, the status is locked and the event is recorded. Diagnostic information can be queried via local panel and remote tools.
** Flexible Configuration and Compatibility
Supports field-programmable speed range, protection threshold, and output logic; compatible with various MPU speed sensors; can be deployed independently or work in conjunction with Woodward 505XT and easYgen series main controllers, operating independently without relying on a main control system.
Working Principle
The device acquires speed signals through three independent MPU inputs. Three modules respectively perform signal processing, speed calculation, and threshold judgment. After a 2-out-of-3 logic vote, a shutdown command is output. Simultaneously, it continuously self-checks the module and channel status; in case of a fault, it triggers a fault alarm and maintains a safe output state, ensuring the protection function never fails.
WOODWARD 8237-2597 high-precision industrial control systems
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