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GT AUXILIARYSYSTEMS

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Shaft Driven Auxiliaries

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GT Support Systems

On - Base systems

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GT Support Systems

Inlet System Air Filter, Air intake duct , APU

Exhaust System

Exhaust duct , Exhaust dampers, By-pass stack

Enclosure

Ventilation system

Fire fighting system

Water wash system

Control cabinet

Motor Control Centre

D.C. System

Oil mist eliminator

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Enclosure

On-Base or Off-Base type

Noise containment

Protection from weather Fixed volume for ventilation

Part of the package

Exterior appearance

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Exhaust System

Options in configuration

Exhaust duct and by-pass stack

Diverter damper

Guillotine Damper

Generally internally insulated

Stack Size based on emission requirements

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Ventilation System

Heat dissipation to maintain safe temperature

To limit hazardous area expansion

Positive pressure ventilation Induced draft ventilation

2x 100% philosophy for vent fans

Control dampers available

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Oil Mist Eliminator

Recovery of oil vapour

Fan and coalescent filters used

Common for entire GTG and gear box

Located outside GTG

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Control Cabinet

Local control room

Houses all control and electrical systems

Self contained control room

Usually used for outdoor installations

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Motor Control Centre

Dedicated LT MCC for GT auxiliaries

Tailored to meet specific operational needs

Auto-changeover possible

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D.C.System

125V DC system

Battery and Charger

Lead-Acid/ SMF / Ni-Cad batteries

Dual cum Boast float charger

Sized to meet operational needs

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Control System

Microprocessor Based Integrated Controls

Novel Speedtronic Mk-V system of GE Self contained control and protection system

State of art communication features

Triple redundancy in processors and controls

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Control System

Major Protections

Overspeed

Over temperature

Loss of flame

Vibration

Lube oil / Hydraulic oil parameters

Fire

Loss of ventilation

Electrical protections

Customer specfic

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Control System

Triple redundancy in processors

Separate processors for control and protection

Remote control possible

Networking of control systems

Integrated control systems of Co-gen / CCP

Single push button start

True black start capability

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Water Washing System

On-line / Off-line Washing Washing of fouled compressor

For heavy fuels turbine washing envisaged

Use of detergent for cleaning

Manifolds provided on base

On-line washing reduces need for frequent Off line washing

Self contained water washing skid provided

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Fire-Fighting System

Dedicated F-F system for GT & auxiliaries

Most times Generator included

Co2 / FM200 based system

Meets NFPA requirements

Initial and Extended discharge philosophy

Cylinder banks for storage

Separate control system

On-line weighing system introduced

Detection on Heat-rise / UV principle

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Water Washing System

On-line / Off-line Washing Washing of fouled compressor

For heavy fuels turbine washing envisaged

Use of detergent for cleaning

Manifolds provided on base

On-line washing reduces need for frequent Off line washing

Self contained water washing skid provided

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