Description
8237 1597 Technical specifications in inches H13 x W19.1 x D6 Housing type IP56 (according to IEC 60529) Features 3 independent internal modules High voltage input per module 100-150 Vdc @ 30 W Keyboard/Display (3) 4.2 inch display screen Low input voltage per module 18-32 Vdc @ 30 W Operating temperature -4 to+140 ° F Storage temperature -4 to+158 ° F Weight 26 pounds 12 ounces Product description
Products 8237-1597 can be equipped with turbines of any size and can be safely shut down in the event of unsafe acceleration. The bulkhead bracket is used in conjunction with steam, gas, and hydraulic turbines and has three independent relays. It also adopts a two out of three architecture, as well as high and low voltage power input. Other detailed information about models 8237-1597 includes; It is part of the Protech GII series. A speed reading of 4 to 20 mA. MPU and acceleration detection. Conformal coatings can resist sulfur pollution. Can be used in Class 3C2 environments. Easily integrated into any size of turbine. Models 8237 1597 are equipped with online repair options, which can work on one module while the entire system is still running. The backplane structure also makes it easy to work on this device. The Woodward safety device can also perform routine checks to ensure that each module is functioning properly. This is accomplished through an internal generator and frequency, and the results of these tests can be stored. Woodward no longer manufactures or sells models 8237-1597, but it can be found through AX Control. AX Control can repair, purchase, or sell these turbine safety models. Woodward 8237-1597 ProTech-GII Bulkhead Installation, HV/HV, Voting Relay, Voting Input Depending on the model purchased, the ProTech-GII comes in a Bulkhead Mount or Panel Mount Housing Package. The partition mounted housing model is designed for installation on walls or bases next to turbines or equipment, rated for IP56 based environments. For these models, field wiring access is done through a gland plate located at the bottom of the casing. Figures 2-1, 2-2, and 2-3 show the physical layout and installation mode of the ProTech-GII model with partition installation. ProTech ®- The GII overspeed protection device Woodward’s ProTech-GII is an overspeed safety device designed to safely shut down steam, gas, and water turbines in the event of an overspeed or acceleration event being detected. This device accurately monitors the speed and acceleration of the turbine rotor through active or passive MPUs (magnetic sensors), and issues a shutdown command to the turbine’s trip valve or corresponding trip system. ProTech-GII has passed IEC61508 SIL-3 certification and complies with API670 and API612 standards
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Core Identity: Developed by Woodward, this industrial-grade overspeed protection device is specifically designed for rotating machinery such as steam turbines, gas turbines, and water turbines. By monitoring speed and acceleration in real time, it triggers a safety shutdown upon detecting overspeed or abnormal acceleration events, preventing equipment damage. As an upgraded version of the ProTech 203, it employs a Triple Modular Redundancy (TMR) architecture, supporting a “two-out-of-three” voting logic to ensure high reliability.
Core Functions:
Overspeed/Acceleration Monitoring: Real-time monitoring of speed and acceleration via a magnetoresistive sensor (MPU), with a response time as low as 12 milliseconds, supporting a wide speed range of 0.5-32,000 RPM.
Triple Redundancy Safety Design: Employing a three-module (A/B/C) redundancy architecture, supporting 2-out-of-3 voting logic to ensure high reliability; modules are hot-swappable online, supporting online maintenance.
Intelligent Diagnostics and Logs: Built-in real-time clock and non-volatile storage, recording 50 trip/alarm events and 20 overspeed events; supports Modbus/Ethernet communication and is compatible with DCS/PLC systems.
Sulfur-Resistant Coating: Special conformal coating conforms to IEC 721-3-3 1994 environmental class 3C2, resisting H₂S/SO₂ gas corrosion and suitable for harsh environments.
Intelligent Diagnostics: Built-in automatic overspeed testing, MPU sensor verification, real-time clock synchronization, and log recording functions; can store the most recent 50 trip/alarm events and 20 overspeed events.
Technical Parameters and Features
Safety Certifications: IEC61508 SIL-3, API670, API612, explosion-proof certification (ATEX/IECEx Zone 2), classification society certification.
Electrical Performance:
Power Supply: Supports high/low voltage (24V DC/120V AC) or dual high-voltage power input, compatible with 90-240V AC/18-32V DC.
Communication Interface: Integrated Modbus TCP/RTU, RS485, Ethernet, and 4-20mA analog output, supporting seamless integration with DCS/PLC systems.
Protection Rating: IP56 (dustproof and splashproof), adaptable to harsh environments (such as high temperature, high humidity, corrosive gases), with a sulfur-resistant conformal coating (compliant with IEC 721-3-3 1994 environmental class 3C2).
Mechanical Design: Wall-mounted or recessed installation (standard 24-inch cabinet door), dimensions approximately 331×413×136mm, weight 6.8kg, modular structure for easy expansion and maintenance.
Safety Certification:
Certified by IEC 61508 SIL-3, meeting North American CSA Class I Div 2 and EU ATEX/EMC directives, among other international standards.
Equipped with password security protection and supports multi-level access control to ensure the security of configuration and testing operations.
Application Scenarios and Value
Typical Applications:
Power Industry: Gas turbine grid connection, steam turbine control, generator overspeed protection.
Oil & Gas: Compressor, pump and valve control, oil and gas field power system optimization.
Marine and Industrial: Marine propulsion systems, chemical plants, metallurgical rolling mills, water treatment pumping stations.
Special Scenarios: Explosion-proof areas, high/low temperature environments, offshore platforms, waste-to-energy plants.
Performance Advantages:
High Precision and Fast Response: 12ms response time, error ≤ ±0.1%, ensuring timely intervention.
Modular Redundancy: Triple redundancy design improves system availability, supports online maintenance, and reduces unplanned downtime.
Intelligent Diagnostics: Self-test function monitors sensor/module status, provides early warnings of potential faults, and supports remote maintenance.
Compatibility: Compatible with other Woodward controllers (such as the 505 and 9900 series), and supports integration with systems from ABB, Siemens, and other brands.
Installation and Maintenance Recommendations:
Installation Specifications:
Fixed in a standard cabinet or wall-mounted installation, ensuring good grounding to avoid electromagnetic interference; sensor installation positions must be precisely aligned with the monitoring points.
Independent power supply wiring to prevent voltage fluctuations from affecting control accuracy; redundant design of communication interfaces to improve system reliability.
Maintenance Requirements:
Regularly calibrate sensors and check the status of connection lines and interfaces; clean module surfaces to prevent oil and dust from affecting heat dissipation.
Analyze fault history using the log function, and regularly perform module self-tests and overspeed tests to ensure normal functioning.
Summary
The WOODWARD 8237-2597 ProTech-GII overspeed protection device is a core component for the safety protection of industrial rotating machinery. It integrates high-precision monitoring, triple-redundancy safety design, intelligent diagnostics, and environmental adaptability, making it suitable for scenarios with extremely high system safety requirements, such as power, oil and gas, and marine industries. Its modular design, rapid response capability, and industry adaptability make it a key solution for industrial automation and energy management.