Woodward 9907-167 505E Digital Governor Brand new in Stock

The Woodward 9907-167 505E Digital Governor  is meticulously designed to operate single-extraction and/or admission steam turbines of varying sizes and applications. It incorporates specialized algorithms and logic tailored for the complete control and protection of these turbines. Whether driving generators, compressors, pumps, or industrial fans, the 505E control is equipped to manage all aspects of their operation.

Advanced Control Algorithms for Turbine Operation

One of the standout features of the 505E controller is its unique PID structure, making it highly adaptable for applications necessitating precise control over steam plant parameters. From turbine speed and load to inlet and exhaust pressures, extraction or admission header pressures, and tieline power, the 505E control excels in maintaining optimal operation.

Smooth and Stable Control Transitions

The 505E controller’s specialized PID-to-PID logic ensures stability during regular turbine operation and seamlessly transitions control modes during unexpected plant upsets. This capability minimizes process deviations, contributing to smoother and more efficient overall operation.

Speed Monitoring and Steam Valve Regulation

Monitoring turbine speed is a critical aspect of turbine control. The 505E controller achieves this through passive or active speed probes, employing high-pressure (HP) and low-pressure (LP) actuators to regulate steam valves, thereby controlling the steam turbine’s output.

Precise Pressure Control and Protection

The controller accurately monitors extraction and/or admission pressure using a 4–20 mA transducer. Employing a PID control loop through a ratio/limiter function, it ensures precise control over extraction and/or admission header pressures. This control not only optimizes turbine performance but also safeguards it from operating outside its designed limits.

Utilizing OEM Steam Maps for Control Strategies

The 505E control relies on the specific steam map provided by the turbine’s Original Equipment Manufacturer (OEM) to calculate valve-to-valve decoupling algorithms and operational and protection limits. This tailored approach enhances control accuracy and safety.

User-Friendly Interface and Accessibility

Housed in a robust enclosure, the 505E control’s front panel serves as both a programming station and an operator control panel (OCP). This intuitive interface allows engineers to configure the unit to match plant requirements, while operators can easily manage turbine start/stop operations and control modes. Password security ensures the integrity of programming settings.

Convenient Monitoring with Two-Line Display

The unit’s two-line display simplifies turbine operation, enabling operators to view both actual and setpoint values on the same screen. This feature enhances visibility and ease of operation.

Efficient Wiring and Maintenance

The controller’s back panel provides easy access to turbine interface input and output wiring connections. Utilizing unpluggable terminal blocks simplifies system installation, troubleshooting, and replacement, contributing to efficient maintenance practices.

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