1. Presented By :- Saurabh Sharma VII th semester Electrical Branch Guided By :- A SEMINAR PRESENTATION ON Supriya Kumari Asst. professor (EE) KOTA SUPER THERMAL POWER STATION DEPARTMENT OF ELECTRICAL ENGINEERING POORNIMA INSTITUTE OF ENGINEERING & TECHNOLOGY ISI- 02, RIICO INSTITUTIONAL AREA JAIPUR –302022 2011-2012

3. 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. ADVANTAGES OF CHOOSING KOTA FOR THERMAL PLANT SETUP : PIET/EE/08/56/01

4. CONTENTS OF THE PRESENTATION:  INTRODUCTION  BLOCK DIAGRAM AND PROCESS OF STEAM GENERATION  COAL HANDLING PLANT.  BOILER PROCESS AND ITS SPECIFICATION.  TURBINE AND TURBO GENERATOR.  ASH HANDLING PLANT  ESP AND ITS WORKING  PROTECTION AND SWTICHING (CONTROL PANEL) PIET/EE/08/56/02

5. Introduction Of K.S.T.P.S o Location:  Bank of river Chambal at up stream of “Kota Barage”.  Sakatpura, Kota. o Installed capacity:  1240 MW.  7 th Unit of 195MW is under construction. o Favorable conditions:  Availability of large amount of water.  Location at broad gauge Delhi-Mumbai railway.  Concentration of load.  Constant water supply.  Transmission and grid sub station are quit near. PIET/EE/08/56/03

6. StagesUnitsRatingCostDate of Commission I1110 MW143Cr.17/01/83 2110 MW143Cr.13/01/83 II3210 MW480Cr.25/04/88 4210 MW143Cr.01/05/89 III5210 MW480 Cr.21/03/94 IV6195 MW535 Cr.30/04/03 V7195MW--Under Construction PIET/EE/08/56/04

7. BLOCK DIAGRAM OF THERMAL POWER PLANT PIET/EE/08/56/05

8. PROCESS OF STEAM GENERATION PIET/EE/08/56/06

9. Row coal from bharat coal ltd. Dhanbad & bilaspur(MP) To KSTPS from gurla via a single railway track Wagon trippler Bunkers Crusher houseHoppers Row coal feeders Coal mills (pulverization) Boiler furnace ( tangential firing of pulverized coal) OVERVIEW OF COAL HANDLING PLANT PIET/EE/08/56/07

10. stack Flue gases Boiler water tubes & various stages Boiler furnace Air from environment via draft fans Pulverized coal Ash handling plant Super heated steam DM water BOILER PROCESS: PIET/EE/08/56/08

11. 1.TYPE Water tube,pulverized fuel fired, single drum type, tangential firing system 2. MAKE BHEL 3. CAPACITY 680tonnes /hour(210MW) 4. PRESSURE 155 Kg./cm2 [G] 5.TEMPERATURE 540 degree TECHNICAL SPECIFICATION OF BOILER PIET/EE/08/56/09

12. Turbine is a machine in which a shaft is rotated steadily by impact of steam it converts heat energy into mechanical energy. TURBINE High pressure Intermediate Low pressure TURBINE :- PIET/EE/08/56/10

13.  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. TURBO GENERATOR :- PIET/EE/08/56/11

14. 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. PIET/EE/08/56/12

15. 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. PIET/EE/08/56/13

16. ROTOR:  Smooth cylindrical type  Rotor shaft made of single piece alloy steel forging of high mechanical and magnetic properties.  The cylindrical structure gives better balance, less losses  To avoid excessive peripheral velocity rotors have small diameter.  The slip rings are made of forged steel. They are located at either side of Generator Shaft. PIET/EE/08/56/

17. ASH HANDLING PLANT  Electrostatic Precipitator(ESP).  Chimney.  Ash  Fly ash (80%). Used for making bricks. Cement.  Bottom ash (20%) Used to improve fertility. Roads. To collect ash two ponds of capacity 150 & 230 hact. Are available ` PIET/EE/08/56/14

18. FURNACE FLY ASH & FLUE GASES (80%) ESP DRY & WET ASH(20%) HOPPERS TRANSPORTED TO CEMENT FACTORIES ETC. CHIMNEY EXHAUSTED GASES BLOCK DIAGRAM OF ASH HANLING PLANT PIET/EE/08/56/15

19. Electrostatic precipitator consists of following parts:-  Casing  Supply system  Emitting electrodes  Collecting electrodes  Wrapping system  Collecting baske t PIET/EE/08/56/16

20. Principle: Electrodes at high voltage create a corona effect (ionized atmosphere) surrounding them. This charges the passing particles. Once charged, particles are subject to a transverse electrostatic force that pulls them toward the collecting plates. Plates are periodically rapped (vibrated) to make the collected particles fall down into a receiver basket PIET/EE/08/56/17

22.  Circuit breakers  Isolators  Lightning arrestors  C.T  P.T  Relays  Control panel PROTECTION & SWITCHING: PIET/EE/08/56/18

23. CIRCUIT BREAKERS:  Bus coupler is provided with minimum oil circuit breaker of BHEL make. ISOLATOR:  All the isolators are provided in 220 KV switchyard and are motor operated. CURRENT TRANSFORMER:  All the 220 KV current transformers are provided for measuring and protection. PIET/EE/08/56/19

24. POTENTIAL TRANSFORMER:  Each of 220 KV buses is provided with three P.T.’S are core for each phase of BHEL make. LIGHTENING ARRESTOR:  For protection against lightening each if line feeder, generator transformer, station transformer has been provided three L.A. (One for each phase). PIET/EE/08/56/20

25. CONTROL PANEL Turbine desk Fan control desk Fuel control desk Generator control desk Steam pressure & control desk PIET/EE/08/56/21

27. It is good to have good will. It is good to have enthusiasm. But it is essential to have “Training”.