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Si-TEC Xtend Digital Steam Turbine Controls
 
The ADG - Advanced Digital Governor
Suitable for steam turbine mechanical drives including Pumps, Compressors, Mills, Shredders, Blowers, Fans, Tandem Turbines, etc.
 
Si-TEC Xtend module   ADG
Advanced Digital Governor for Steam Turbines
 
Features   Applications
  • Precise turbine speed governing to typically 0.02% of steady state (rated) operational speed.
  • Capable of driving a range of actuators including electric, electro-hydraulic and pneumatic actuators. eg.
    Heinzmann all-electric actuator with feedback, Heavy Current Driver - other electric actuators, Electro Hydraulic actuators (0-200mA), 4-20mA, 0-5V, or PWM.
  • Precise "position feedback" for suitable actuators.
  • Multiple and wide range PID's.
  • Automatic start/stop sequence initiated by a single logic input provide turbine controlled warm through and steam limited start.
  • Rapid start cycle for warm turbine.
  • Noise and harmonic issues eliminated by design.
  • Dual MPU or Proximitry sensors for redundancy.
  • Detection for zero speed. (from proximitry switch)
  • Automatic baring speed switch and control.
  • Controlled Over Speed trip testing.
  • Configurable alarms can be multi-functional.
  • Bump® features to optimise tuning.
  • Extensive Diagnostic functions.
  • User selected 4-20mA inputs and outputs.
  • User selected Relay Outputs.
  • Expandable I/O - Digital, Analog and Thermocouple.
  • RS-232 communications port for diagnostics.
  • RS-485 port for interface to Si-TEC TMS, DCS, SCADA, etc. for remote monitoring and control.
  • Si-TEC I/O interface to PLC, DCS, SCADA etc.
  • Interface with range of Actuator Drivers including: Second Actuator driver for extraction turbines, and Process Control. (eg. Inlet or Exhaust Pressure control)
  • Si-TEC Opal - remote display / annunciator unit interface via CAN BUS.
  
  • Wide range of mechanical drives including pumps, compressors, mills, shredders, fans, blowers, etc.
  • Single Turbine variable speed governing control referenced from internal or external set points.
  • Single Turbine constant speed governing control referenced from internal set points.
  • Multiple Turbines driving a common shaft. (Tandem)
  • Process Control - Inlet Pressure / Exhaust Pressure.
  • Extraction Turbine Control.
To learn more about this product, view our 4-page Si-TEC Xtend ADG Brochure.pdf (1.09MB) document. Please note: Adobe Acrobat Reader is required to view this file.
 
For more information and pricing details on this product, please contact us with your inquiry.
 
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Last updated: Tuesday, 21 January 2003 by Webmaster