Description

Product Overview

The WOODWARD 8200-1302 is the 505 Digital Governor controller for single or split-range steam turbine speed and load control. This panel-mounted turbine governor executes closed-loop speed regulation, valve positioning, startup sequencing and overspeed protection for steam turbines used in power generation, sugar, chemical and industrial process plants. It accepts magnetic pickup speed signals and drives servo actuators for steam control valves, supporting remote analog/preset speed commands and relay discrete I/O for interlock logic. This hardware resolves unstable speed drift and manual regulation inaccuracy, delivering deterministic turbine control for continuous process prime movers. Turbomachinery control engineers and plant reliability teams rely on this unit for spare replacement and retrofits of legacy 505 steam turbine control systems. The built-in keypad and LCD HMI enable local configuration, real-time trending and timestamped fault event recording for fast commissioning and breakdown troubleshooting. Word count overview:173

Technical Specifications

• Product Model: 8200-1302
• Brand: Woodward
• Warranty: One Year
• Input Voltage: 88–132 V AC / 90–150 V DC universal power supply
• Operating Temperature: 0 °C to 60 °C
• Storage Temperature: -40 °C to 85 °C
• Response Time: Fast closed-loop speed loop; high-speed magnetic pickup sampling
• Protection Class: IP20 rear terminals, NEMA4/IP65 front panel
• Accuracy Class: ±0.01% speed regulation full scale
• Output Frequency: Not applicable (turbine governor controller)
• Rated Current Range: Servo drive output matched for single / split range actuators
• Communication Interface: RS232/RS485 serial port; analog 4–20mA I/O; discrete relay terminals; front HMI
• Supported Protocols: Modbus RTU, Servlink for PC configuration via GAP software
• Overload Capacity: Hardware overspeed trip logic, overvoltage, short-circuit and watchdog fault protection
• Dimensions: Standard 505 panel cutout form factor

Application Scenarios

• Cogeneration Steam Turbine Generator Control: This 505 governor manages turbine speed and generator load for combined heat and power units. The 8200-1302 controls steam inlet valves, synchronizes to grid and maintains stable load under fluctuating steam supply conditions.
• Process Plant Backpressure Steam Turbine: Installed for refinery and chemical plant backpressure turbines, the unit regulates shaft speed while maintaining steam header pressure via split-range valve actuation.
• Sugar Mill / Pulp Mill Turbine Drives: The controller runs turbine-driven fans, pumps and mill equipment. Preset speed schedules support batch production changes and overspeed protection safeguards rotating machinery.