Woodward 8237-1246 ProTech-GII configurable overspeed detection system DCS PLC Module
The Woodward 8237-1246 ProTech-GII is a configurable overspeed detection system designed to safely shut down steam, gas, and hydro turbines of all sizes upon sensing an overspeed or overacceleration event. It is a bulkhead mount, high voltage/low voltage power input, voted relays safety device for steam turbine overspeed protection.
Here are some of its features:
- `Dual redundant trip relay outputs using a 2-out-of-3 voted architecture, or with three independent non-voted trip relay outputs with individual alarm relays
- `4–20 mA speed readouts
- `Modbus® communications
- `Optional acceleration detection
- `MPU detection
- `Automatic overspeed test routine
- `Sulfur contamination resistant
- `On-line repair
The ProTech-GII’s triple-modular design allows one module to be replaced while the other two modules remain in operation, which helps to improve system availability. This system is typically used in critical applications where the safe shutdown of a turbine is essential.
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