Series 3 Plus products line includes:

• Antisurge Controller
• Performance Controller
• Dual-Loop A/P Controller
• Speed Controller for Steam Turbines
• Extraction Controller for Steam Turbines
• Fuel Controller for Gas Turbines
• EAS - Surge Detector and Manual Loading Station

Antisurge Controller

Summary of Features:

• Proximity to surge calculations automatically adapt to changing inlet conditions
• Patented combination of open and closed-loop control responses provides maximum protection and optimal process efficiency
• Keyboard selectable standard configurations adapt controller to your specific application
• Integrated loop decoupling prevents interacting control loops from destabilizing your process
• Limiting control of any two single-input variables consistent with surge protection
• Automatic start-up and shut-down logic
• Bumpless transfer between manual and automatic operating modes
• Manual override prevents inadvertent compressor damage due to operator error
• Input fault detection and fall back strategies keep your compressor on-line in the event of a transmitter failure
• Tracking and self-test features allow smooth, automatic switching to redundant controllers in the event of a controller failure
• Standard Series 3 Plus hardware simplifies maintenance procedures and spare parts stocking
• Modbus interface enables communications with host computers or distributed control systems

Performance Controller

Summary of Features:

• Primary control of any single-input process variable, a three- input pressure- and temperature-compensated mass flow rate, or a load-sharing variable based on compressor proximity to surge
• Limiting control of any two secondary process variables
• Automatic sequencing of compressor start-up and shut-down
• Integrated loop decoupling prevents interacting control loops from destabilizing your process
• Bumpless transfer between manual and automatic operating modes
• Manual override prevents inadvertent compressor damage due to operator error
• Input fault detection and fall back strategies keep your compressor on-line in the event of a transmitter failure
• Tracking and self-test features allow smooth, automatic switching to redundant controllers in the event of a controller failure
• Standard Series 3 Plus hardware simplifies maintenance procedures and spare parts stocking
• Modbus interface enables communications with host computers or distributed control systems

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Dual-Loop A/P Controller

Summary of Features:

• Proximity-to-surge calculations that adapt to changes in most inlet conditions
• Patented combination of open-and closed-loop surge control responses
• Control of any single-input process variable or a load-sharing variable based on proximity-to-surge
• Local or remote performance control set point
• Process limitations can be controlled by either loop
• Integrated loop decoupling
• Bumpless transfer between each loop's automatic and manual operating modes
  Automatic start-up and shut-down sequencing
• Manual override guards against accidental compressor damage due to redundant controllers
• Standard Series 3 Plus hardware simplifies maintenance procedures and spare parts stocking
• Modus interface for communication with host computers or distributed control systems

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Speed Controller for Steam Turbines

Summary of Features:

• 2-out-of-3 voting on rotational speed (selected value can be transmitted to companion controllers)
• Speed or droop control for synchronous generators
• Local, remote, or cascade control of speed set point
• Bumpless transfer among all control modes
• Variable gain and reset rate
• Manual operation with automatic override allows direct valve positioning without endangering equipment
• Automatically idles or stops turbine when load-loss discrete inputs are set
• Overspeed trip closes the governor valve if a user-defined maximum speed is exceeded
• Overspeed test captures the overspeed trip limit
• Automatic start-up and shut-down ramps avoid up to two critical speed ranges
  Automatic, bumpless switching to redundant controllers in the event of a controller failure
• Modbus interface enables communications with host computers or distributed control systems
• Compatible with all pneumatic and hydraulic actuators
• Standard Series 3 Plus hardware with added I/O circuitry

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Extraction Controller for Steam Turbines

Summary of Features:

• Control of header pressure or flow rate, with immediate, bumpless transfer between control variable
• Header flow rate can calculated as pressure-and temperature-compensated mass flow
• Local or remote control of set points
• Bumpless transfer among manual, automatic, remote and local control modes
• Integrated loop decoupling prevents interacting control loops from destabilizing your process
• Manual operation with automatic override and loop decoupling allows direct valve positioning without endangering equipment or changing the variable left under automatic control
• Input fault detection and fall back strategies keep your system on-line in the event of a transmitter failure
• Tracking and self-test features for bumpless, automatic switching to redundant controllers in the event of a controller failure
• Modbus interface enables communications with host computers or distributed control systems
• Automatic start-up and shut-down sequences that work with the Series 3 Plus Speed Controller to ensure safe, efficient start ups and shut downs
• Compatible with all pneumatic and hydraulic actuators
• Standard Series 3 Plus turbine controller hardware

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Fuel Controller for Gas Turbines

Summary of Features:

• Redundant speed inputs (selected value can be transmitted to companion controllers)
• Isochronous, valve droop, and megawatt droop control
• Primary control of NPT or NGG/NHP and limiting control of all other shaft speeds (multi-shaft turbines)
• Independent high-speed alarm and overspeed trip thresholds for each shaft
• Overspeed test captures overspeed trip limit
• Local and remote set points
• Variable gain and reset rate
• High-median temperature selection with spread alarm and automatic shutdown if all inputs fail
• Over-temperature alarm, high-limiting with scheduled set point, and high and low temperature trips
• Limiting control of compressor discharge pressure (CDP) and fallback strategies for CDP input failure
• Acceleration and deceleration limits
• Fuel sequencing during startups and shutdowns
• Set point ramps bypass up to two critical speed ranges
• Cooldown and coastdown timers
• Compatible with pneumatic and hydraulic actuators, with analog or LVDT position tracking
• Modbus interface enables communications with host computers or distributed control systems
• Standard Series 3 Plus hardware with added I/O circuitry

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EAS - Surge Detector and Manual Loading Station

Summary of Features:

• Increased compressor protection because it can independently detect surge and automatically take over when your antisurge controller fails
• More reliable surge detection due to high speed monitoring of two process variables
• Greater versatility because its many features can be configured to the needs of your application
• More options when interfacing to DCS or PLC control systems due to its multiplicity of digital and analog inputs and outputs

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For additional questions on these products please contact CCC satellite office near you