Vantage®GDX - Governor for Single Automatic Extraction Steam Turbines Driving Synchronous Generators

A new addition to the Vantage® product line: the Vantage GDX governor. Its extensive benefits, capabilities, and features combine to create a
compelling argument for the use of the Vantage GDX governor on virtually any single-automatic extraction, generator-drive steam turbine.

Major Benefits:

• Outstanding speed control with integrated manual-control capability, protective override for overspeed and critical speed, and fully automated start-up and shutdown sequencing.
• Stable and precise load control for synchronous electrical generators. Permits operation in power droop, characterized valve droop, and isochronous modes. Discrete inputs are provided for manual synchronization or interfacing with external auto-synchronization units.
• Advanced algorithms with a sophisticated loop-decoupling scheme provide precise extraction control in a cost effective solution.
• A built-in cascade control loop that allows you to regulate other process variables, such as turbine inlet or exhaust pressure, without the added expense of a separate controller.
• Because a separate computer or operator panel is not required, your installed cost is minimized.
• Extensive self-diagnostics and field I/O diagnostics simplify troubleshooting.

Operator Interface
All configuration, operation, and maintenance activities
for the Vantage GDX governor can be performed
using the local operator interface:

• Two separate keypad areas are provided on the
  front panel. One is exclusively for configuration
  and maintenance, while the other is for machine
  operation. This provides the simplest and most
  intuitive interface possible for your plant personnel.
• An alphanumeric, vacuum-florescent display provides complete access to operating and configuration parameters for use by plant operators and control engineers.
• Front-panel LEDs indicate control mode, controller
  integrity, and process status, providing a quick, convenient reference for monitoring the state of the process and the control system.

Because a separate computer or operator panel is
not required, your installed cost is minimized. If you
prefer your plant personnel to have a consistent operator
interface, all operation activities can be performed
from your plant DCS using the industry standard
Modbus RTU interface. Whether the operator interface
is through the front panel or Modbus, multilevel password protection is provided on configuration and test parameters for secure operation.

Inputs and Outputs
The Vantage GDX governor features a comprehensive
I/O complement:

• 2 Magnetic Pickup Inputs o 16 Discrete Inputs
• 8 Analog Inputs o 6 Discrete Outputs
• 3 Analog Outputs

Test and Maintenance
The VANTAGE GDX governor provides several
unique features to simplify test and maintenance procedures.
These features help lower your system lifecycle
costs:

• Extensive self-diagnostics and field I/O diagnostics
  simplify troubleshooting.
• A history log aids in the analysis of recent shutdowns.
• Manual operation allows direct valve positioning
  for test and maintenance of final control elements.
• The overspeed test feature (password protected)
  facilitates testing of the primary overspeed
  device by allowing an increase of the turbine
  speed set point up to the configured maximum
  control speed.

Specifications

• Input Power: 85 to 265 VAC (optional 18-32
  VDC)
• Enclosure Rating: IP-54
• Operating Temperature Range: –40 to +65 °C
• Humidity Range: 5 to 95% (Non-condensing)
• EMC Compliance: CE Certified
• Hazardous Area Certification
• U.S. Class 1, Div. 2, Gas Groups A, B, C, D,
  Temperature T3
• Canadian Class 1, Zone 2, Gas Group IIC,
  Temperature T3
• European ATEX Group II, Category 3, Gas
  Group IIC, Temperature T3

Want to know more about the Vantage®GDX governor? Please download:

brochure (109KB) or follow this link

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