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- Warranty： 365 days
- Quality: Original module
- Condition： New
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WOODWARD 8200-505 505 Digital Steam Turbine Governor
Product Brief Description
Woodward 8200-505 is the classic 505 digital turbine governor designed for single-valve steam turbines. This panel-mount controller provides integrated speed governing, base load regulation, auxiliary PID control and turbine sequencing logic. It accepts speed feedback from magnetic pickup sensors and outputs drive signals for electro-hydraulic actuators. With built-in LCD, keypad and multiple communication interfaces, it supports standalone operation or integration with DCS and HMI systems. It is a widely used legacy governor and stocked as replacement spare for steam turbine generator and mechanical drive turbine packages.
Product Features & Functions
- Precise PID speed governing and base load control for single-valve steam turbines
- Bumpless mode transfer between speed control, manual control and base load operation
- Multiple configurable PID loops for auxiliary control such as pressure, temperature or flow regulation
- Configurable auto startup ramp, idle/rated function and critical speed avoidance logic
- Overspeed monitoring, loss-of-speed detection, shutdown permissives and first-out fault indication
- Analog actuator output to drive steam control valves; supports split-range actuator configurations
- Front panel LCD display and keypad for local setup, parameter tuning and real-time status monitoring
- Modbus RTU serial communication for connection to plant DCS, PLC and SCADA systems
- Built-in event recorder for alarms, trips and trending data to support root-cause troubleshooting
- Comprehensive self-diagnostics covering sensor inputs, actuator outputs, memory and internal hardware faults
Application Scenarios
- Single-valve steam turbine generator sets for industrial power generation
- Turbine-driven pumps, fans and compressors for mechanical drive applications
- Cogeneration CHP plants and captive power generation stations
- Chemical plants, refineries, pulp and paper mill process steam turbines
- Legacy turbine control cabinet maintenance, spare replacement and control retrofits
FAQ
Q: What is Woodward 8200-505 used for?
A: It is the classic 505 digital governor for single-valve steam turbines, used for speed and load control on generator and mechanical drive turbines.
Q: Can the 505 handle extraction or admission steam turbines?
A: This standard 505 model is for single-valve turbines. Extraction or admission turbine applications require 505XT controllers.
Q: What signals does it use for speed measurement?
A: It receives frequency signal from magnetic pickup (MPU) speed sensors mounted on the turbine shaft.
Q: Is the built-in overspeed monitor SIL rated safety protection?
A: No. The onboard overspeed monitor is control monitoring only. A separate SIL-certified overspeed trip system is required for safety instrumented functions.
Q: Are refurbished 8200-505 controllers available?
A: Refurbished spare units are available. Each unit is fully tested including MPU simulation, actuator output, PID tuning and Modbus communication before shipment.
