UTILITY SYSTEMS

Gas Station™

Power utilities and independent power producers are increasingly concerned with upfront capital expenditures and subsequent on-site engineering and installation costs. They also require accurate, real-time monitoring information so that unit efficiency and generator performance can be maximized - and downtime minimized. The E/One Gas Station addresses each of these concerns and allows plant operators, together with E/One, to configure targeted solutions for original equipment supply and retrofit applications.

The E/One Gas Station is a modular approach that combines monitoring and control systems into a single, integrated platform, customized to meet specific site requirements and budget parameters. Gas Station modules include:

Main gas supply manifold and associated controls

  • Gas purity monitoring
  • Overheat monitoring
  • Dew point monitoring
  • Gas drying
  • Partial discharge monitoring
  • Seal oil system monitoring and control
  • Customized annunciator panels

Gas Station Modules

Generator Auxiliary System (GAS)
Used in conjunction with E/One's main gas supply manifold, provides local display of critical gas supply pressures, case, and differential pressure. May be supplied with digital displays in place of gages.
Generator Gas Analyzer (GGA)
Provides continuous monitoring of hydrogen and purge gases for efficiency and safety.
Generator Condition Monitor (GCM-X)
Provides early warning of generator hotspots, which can lead to catastrophic failure.
Generator Gas Dryer (GGD)
Removes moisture and contaminants from cooling gas, reducing threats of corrosion and windage losses.
Auxiliary Systems (AUX)
Customized to meet specific requirements and often include seal oil system monitoring and site-specific annunciator displays.
GGA and GCM-X Dual-Module Gas Station
The popular two-module GGA/ GCM-X Gas Station combines continuous gas purity monitoring throughout all phases of operation, with early warning of overheat monitoring. An ideal retrofit configuration in support of generator life extension.

Features and Benefits

  • Flexible, cost-efficient approach to gas monitoring and control systems
  • Modularity couples best of technology with reduced installation and on-site engineering costs
  • Customized to meet specific needs and budgets
  • Hazardous area designs - compliance with national and international requirements
  GGA GCM-X
Characteristics    
Operating Principle Thermoconductivity Ionization chamber
Gas Flow Rate 100-700 cc/min (500 cc nominal) Adjustable
Measurement H2 in Air  
  H2 in CO2  
  Air in CO2  
     
Display Alphanumeric Bar graph
  LED's LED's
  LCD LCD
     
Electrical Characteristics    
Power 115/230 VAC, 50/60 Hz 115/230 VAC, 50/60 Hz
Output Relays Warning, Alarm, Trouble Warning, Verified Alarm, Trouble
     
Output Signals Purity Ionization chamber
(All output signals 4-20 mA)   Flow
     
Mechanical Characteristics    
Module Dimensions 23" h x 25" w x 12.25" d 23" h x 25" w x 10.25" d
Temperature 32-125 F (0-52 C) 32-125 F (0-52 C)
Relative Humidity 0 to 95% 0 to 95%
Gas Connections As required As required
Gas Pressure 100 psi maximum 150 psi maximum
     
Area Classification Class 1, Division 1, Group B Class 1, Division 1, Group B
  ATEX, Zone 1, Ex, H2 ATEX, Zone 1, Ex, H2
     
     
  GAS GGD
Characteristics    
Operating Principle N/A Adsorption
Gas Flow Rate   (Molecular Sieve)
    Generator dependent
Measurement   Dew Point
     
Display Alphanumeric (optional) Alphanumeric
  Analog gauge(s) Analog gauge(s)
  LED's (optional) LED's (optional)
  LCD (optional) LCD (optional)
     
Electrical Characteristics    
Power 115/230 VAC, 50/60 Hz 460/60/3 Phase
Output Relays Supply Pressure, Case Pressure High Temperature, High Dew Point (optional)
  Trouble (optional) Trouble
Output Signals    
(All output signals 4-20 mA) Case Pressure Supply Pressure (optional) Dew Point
     
Mechanical Characteristics    
Module Dimensions 23" h x 25" w x 7.5" d 23" h x 25" w x 7.5" d
Temperature 32 to 125 F (0-52 C) 32 to 125 F (0-52 C)
Relative Humidity 0 to 95% 0 to 95%
Gas Connections As required 3/4", 150# RF Flange
Gas Pressure 150 psi maximum 10/75 psi min/max
     
Area Classification Class 1, Division 1, Group B ATEX, Zone 2, Ex, H2
  ATEX, Zone 1, Ex, H2  
     
     
     
 
2-Module Gas Station 78" h x 30" w x 36" d
4-Module Gas Station 78" h x 59" w x 54" d
6-Module Gas Station 84" h x 84" w x 60" d
     
Notes: GAS Modules may be configured to meet customer requirements.
Contact E/One for detailed specifications of Gas Station configurations.

 

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