Patratu Thermal Power Station Training

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Client: Bharat Heavy Electricals Ltd. (BHEL)

Services: Operations & Maintenance / Modification/ Renovation/ Lifetime extension

Period: 2007 – on going


The assignment of company included following scope of work:
Detailed engineering
Cost estimate
Preparation of technical specifications
Technical support for bid evaluation
Assistance in order finalization
Technical assistance during execution & commissioning


Steps by step information of Patratu Thermal Power for Power Point Presentation:

Patratu Thermal Power StationA unit of Jharkhand Power Generation Corporation

1. PTPS
A Brief Overview
Vision, Mission
Achievements

2. Thermal Power Plant
An Overview
Operation in Thermal Power Plant
Instrumentation in Thermal Power Plant

3. Patratu Thermal Power Station
Panipat Thermal Power Station (PTPS) is governed by Haryana State Electricity Board.
Located at about 10 KMs away from Panipat on Panipat-Assandh road near the village Assan
The total installed capacity at P.T.P.S is 4*110 MW + 2*210 MW + 2*250 MW

4. PTPS – Vision & Mission
Vision to become a modern world class integrated power Generation Company, powering Haryana’s growth on all fronts by maximizing generation from existing plants"

Mission Embarked on a mission to establish itself as a modern, growth oriented organization and to make its presence felt in the country’s dynamic power sector.

5. Thermal Power Plant
Thermal Power Stations require a number of equipments performing a number of complex processes with the ultimate aim to convert chemical energy of coal or oil to electrical energy

This involves the generation of steam in the boiler by burning coal

6. The steam in turn drives the turbine. The Turbo Generator coupled with the turbine produces electricity which is stepped up with the help of transformers and is fed into grid station through transmission lines.

7. Basic Idea of Electricity GenerationCoal is unloaded by electric traction system at Coal Yard Coal is crushed to finer pieces of order 20 mm Pulverization of Coal Coal is send to furnace with the help of FD fan Steam is generated at 540°C and 135 kg/sq.m Steam is send to Super heater Superheated steam is send to turbineProduction of Electricity by the generator coupled with

8. Elements of Thermal Power Station
DM Plant
Deaerator
Boiler feed pump
Economizer
Air Pre-Heater
Boiler
Super heater
Turbine
Condenser

9. Coal Fired Power Plant

10. Instrumentation in Thermal Power Plant
When the balance is disturbed, all the process variables deviatefrom their normal valves thus creating the necessity for thefollowing:-
i) Instruments: To measure and indicate the amount ofdeviation
ii) Automatic Control: To correct the deviation and bring backsystem to normal
iii) Annunciation: To warn about the excessive deviations, ifany
iv) Protection: To isolate the equipments process fromdangerous operating conditions cause due to such excessive deviations.

11. Selection Criteria of Instruments:
Required accuracy of measurement
Range of measurement
The form of final data display required
Principle of working
Cost
Calibration and repair facilities required/available
Layout restrictions
Maintenance requirements/availability

12. Temperature The degree of hotness and coldness measured on the definite scale:
Methods of Temperature Measurement
Resistance Temperature Detector (R.T.D)
Thermocouple

13. Resistance Temperature Detector:
Resistance of certain metals changes as the temp. changes as per formula given below :- Rt=Ro(1+wt)
Where Rt=Resistance at temp. to be measured. Ro=Resistance at 0 degree C. w=Temp. coefficient of res. Thermometer metal t=Temp. to be measured.
Mainly three metals copper, nickel and platinum are used as RTD.

14. Thermocouple:
It consists of a pair of wire of different materials.
Wires are joined at both ends one junction is kept at a high temp.called hot junction and the other is kept at a fixed at lower temp.called cold junction. Due to which emf is setup in the ckt known as Thermo emf.

15. Pressure Units for pressure measurement are Newton/m2 , Kg/cm2, mm of water column & mm of mercury column:
Devices for Pressure Measurement
Bourden Tube Pressure Gauge
Manometer
Vacuum Gauges

16. Bourden Tube PG Manometer Vacuum Gauges