Turbomachinery Package Specification

Titan 250 Generator Set

 

 

14 Accessory Equipment

14.1DC Power Supply and Battery Charger System

This system provides 120 VDC power for the following devices:

•The electric actuators that drive the fuel valves, bleed valve and variable guide vanes.

•The 120 to 24 volt DC-to-DC converter in the control system that provides the 24 VDC control power.

•The DC backup lube oil pump and DC back-up engine turning gear motors.

•The DC backup lube oil scavenging pump motor (when applicable for offshore installations).

The system includes a 3-phase charger (Figure 26) and a set of batteries configured for 120VDC output, mounted on a freestanding rack. The batteries are sized to provide sufficient power to allow the package to shut down and cool down in an orderly manner in the event of loss of external AC power. The system is designed for indoor installation in a nonhazardous area. The batteries are shipped fully charged and ready for use. Two battery types are available:

•Valve-regulated, sealed gas-recombination, lead-acid

•Nickel Cadmium

Figure 26. Typical Battery Charger

14.2Turbine Cleaning System

The optional turbine compressor cleaning system (Figure 27) facilitates periodic cleaning of the turbine compressor. The cleaning system is designed for use in salt-laden or dusty environments or where compressor contamination from hydrocarbon vapors is possible. The turbine compressor cleaning system is composed of the following systems:

•On-crank cleaning system

•On-line cleaning system

Both cleaning systems are independent of each other and include a separate distribution manifold with pressure atomizing spray nozzles in the engine air inlet collector, onskid piping, strainer, and solenoid shutoff valves to deliver water or approved cleaning fluid to the manifold. Both systems require an external source of clean-filtered air to pressurize the cleaning solutions.

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TPS250GS/908 - Preliminary

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