Woodward 8200-1203 505D Digital Governor for Steam Turbine Control

Woodward 8200-1203 505D Digital Governor for Steam Turbine Control

The Woodward 8200-1203 is an advanced digital governor engineered to deliver precision speed and load control for steam turbines in power generation, cogeneration, and industrial process applications. Built on the proven 505D platform, this controller combines robust hardware architecture with sophisticated control algorithms to ensure reliable turbine operation across varying load conditions.

Technical Specifications

• Model Number: 8200-1203
• Series: 505D Digital Governor
• Control Type: Digital PID with adaptive tuning
• Input Voltage: 24 VDC nominal (18-32 VDC range)
• Speed Sensing: Magnetic pickup or proximity probe compatible
• Output Signals: 4-20 mA analog, discrete relay contacts
• Communication: Modbus RTU, RS-485 interface
• Operating Temperature: -40°C to +70°C
• Protection Rating: IP54 (panel-mounted configuration)
• Certifications: UL, CE, CSA approved

Key Features & Benefits

Precision Speed Regulation: Maintains turbine speed within ±0.25% of setpoint through advanced PID control loops with anti-windup protection and derivative filtering.

Dual-Channel Redundancy: Optional redundant configuration ensures continuous operation even during single-point failures, critical for mission-critical power generation facilities.

Load Sharing Capability: Seamlessly integrates with parallel turbine installations, distributing load proportionally based on droop settings and isochronous load sharing protocols.

Comprehensive Protection: Built-in overspeed detection, loss-of-speed signal monitoring, and configurable alarm outputs protect turbine assets from damage.

Application Scenarios

Power Generation Plants: Controls steam turbines driving synchronous generators in utility-scale and independent power producer facilities, maintaining grid frequency stability.

Cogeneration Systems: Manages turbine speed in combined heat and power installations where steam extraction rates vary with thermal demand.

Industrial Process Steam: Regulates back-pressure and extraction turbines in refineries, chemical plants, and pulp & paper mills where process steam requirements fluctuate.

Marine Propulsion: Governs steam turbines in naval and commercial vessels, providing smooth acceleration and precise speed holding during maneuvering.

Integration & Compatibility

The 8200-1203 interfaces directly with Woodward actuators including the Woodward 8400-016 EPG Actuator for electrohydraulic valve positioning. For complete turbine control solutions, pair with the Woodward 9907-1199 CPC-II Current-to-Pressure Converter to convert control signals for pneumatic actuators. System integration is enhanced when combined with Woodward 9907-962 MicroNet Network Control Module for distributed control architecture.

Installation & Configuration

Panel-mount design with standard DIN rail compatibility simplifies retrofit installations. Configuration via front-panel keypad or PC-based software allows rapid commissioning. Pre-programmed turbine profiles reduce setup time while custom tuning parameters accommodate unique system dynamics.

Frequently Asked Questions

Q: Can the 8200-1203 control both mechanical-hydraulic and electrohydraulic actuators?
A: Yes, the controller outputs 4-20 mA signals compatible with electrohydraulic actuators and can interface with current-to-pressure converters for mechanical-hydraulic systems.

Q: What speed sensing methods are supported?
A: The governor accepts magnetic pickup sensors (passive) and proximity probes (active) with configurable pulse-per-revolution settings from 60 to 360 teeth.

Q: Is remote monitoring and control available?
A: Yes, Modbus RTU communication enables integration with SCADA systems, PLCs, and HMI panels for remote setpoint adjustment and diagnostics.

Q: How does load sharing work with multiple turbines?
A: The controller supports droop-based load sharing where each turbine's output is proportional to its rating, or isochronous mode where a master controller coordinates load distribution.

Q: What warranty coverage is included?
A: All units include a comprehensive 12-month warranty covering manufacturing defects and component failures under normal operating conditions.

Warranty & Support

Every Woodward 8200-1203 governor is backed by a 12-month manufacturer warranty covering defects in materials and workmanship. Technical support includes application engineering assistance, commissioning guidance, and troubleshooting resources. Replacement parts and field service are available globally through authorized Woodward service centers.

Why Choose Industrial Control Hub?

We specialize in supplying genuine Woodward turbine control systems with verified authenticity and full traceability. Our technical team provides pre-sale application consultation and post-sale integration support to ensure successful project outcomes.

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