31-05-2012, 03:29 PM
KOTA SUPER THERMAL POWER STATION
KOTA SUPER THERMAL POWER STATION.pptx (Size: 1.79 MB / Downloads: 187)
ADVANTAGES OF CHOOSING KOTA FOR THERMAL PLANT SETUP :
Availability of large amount of clean cooling water required for the station.
Location of station on broad gauge main Delhi-Bombay Railway line.
Concentration of load in Kota city and Kota region.
Constant power supply.
Proximity to M.P. Coal fields.
Transmission and Grid substation are quite nearer to the site.
TURBINE :-
Turbine is a machine in which a shaft is rotated steadily by impact of steam it converts heat energy into mechanical energy.
TURBO GENERATOR :-
Designed for continuous operation at the rated output.
Driven by directly coupled steam
turbine at a speed of 3000 r.p.m.
Have two main parts:
Rotor
Stator
A temperature detector is provided
to maintain the temperature.
Temperature of windings is
maintain by H2 coolant.
Stator Frame:
Welded steel frame construction.
Withstand the thermal gas pressure.
It is used for holding the armature stampings and windings in position.
Stator Core:
Built up of special sheet laminations to minimize eddy current losses .
The laminations are stamped out and after that each lamination is varnished on both side.
Stator Bars:
Manufactured as half bars.
Made in strips to reduce skin effect.
Semi-conductor coating is also applied to a part of overhung to reduce eddy currents to minimum.
Stator Windings:
Double star layers, lap wound, three phase, short pitch type(to reduce losses).
Complete arrangement of winding circuit is viewed from turbine end of generator.
KOTA SUPER THERMAL POWER STATION.pptx (Size: 1.79 MB / Downloads: 187)
ADVANTAGES OF CHOOSING KOTA FOR THERMAL PLANT SETUP :
Availability of large amount of clean cooling water required for the station.
Location of station on broad gauge main Delhi-Bombay Railway line.
Concentration of load in Kota city and Kota region.
Constant power supply.
Proximity to M.P. Coal fields.
Transmission and Grid substation are quite nearer to the site.
TURBINE :-
Turbine is a machine in which a shaft is rotated steadily by impact of steam it converts heat energy into mechanical energy.
TURBO GENERATOR :-
Designed for continuous operation at the rated output.
Driven by directly coupled steam
turbine at a speed of 3000 r.p.m.
Have two main parts:
Rotor
Stator
A temperature detector is provided
to maintain the temperature.
Temperature of windings is
maintain by H2 coolant.
Stator Frame:
Welded steel frame construction.
Withstand the thermal gas pressure.
It is used for holding the armature stampings and windings in position.
Stator Core:
Built up of special sheet laminations to minimize eddy current losses .
The laminations are stamped out and after that each lamination is varnished on both side.
Stator Bars:
Manufactured as half bars.
Made in strips to reduce skin effect.
Semi-conductor coating is also applied to a part of overhung to reduce eddy currents to minimum.
Stator Windings:
Double star layers, lap wound, three phase, short pitch type(to reduce losses).
Complete arrangement of winding circuit is viewed from turbine end of generator.