Main coponents

Exciter:

A dc supply is always connected with the generator for excitation and to produce magnetic field. If there is no excitation no flux will produce. Hence no electricity will generate. So a dc exciter is very necessary for excitation.

Air filter:

 

   A particular air filter is a device composed of fibrous materials which removes solid particles such as dust, pollen, mold and bacteria from the air. The filter pad absorbs the small particles by viscous fluids and the metallic filter removes the large particles. The combustion air filter prevents abrasive particles from entering the engine’s cylinders, where it would cause mechanical wear and oil contamination known as “Engine air induction system.”

So this air must be dust free for efficient operation. Hence air filter is used.

Three types of filters are used:

1.      Turbine filter

2.      Generator cooling filter

3.      Ventilation filter

 

Compressor:

Here multistage type rotary compressor is used to compress the air at high pressure and supply to combustor. This compressed air is used to ignite the fuel. But its major amount is used to cool the generator.

Combustor:
combustion takes place. It is also known as a burner or flame can. A combustion chamber has ten burners.  In a gas turbine engine, the main combustion or combustion chamber is fed high pressure air by the compression system and feeds the hot, high pressure exhaust into the turbine components of the engine. Combustors are designed to contain and control the combustion of the fuel-air mixture.