01-08-2012, 11:29 AM
DEEN BANDHU SIR CHHOTU RAM THERMAL POWER PROJECT (DCRTPP)
YAMUNA NAGAR
naklee.doc (Size: 1.91 MB / Downloads: 178)
INTRODUCTION TO HPGCL
Haryana Power Generation Corporation Limited (HPGCL) was incorporated as a company under Companies Act 1956 on 17th March 1997 and certificate for commencement of business was granted on 5th August 1997. The business of generation of power of erstwhile Haryana State Electricity Board was transferred to Haryana Power Generation Corporation Limited on 14th August 1998 pursuant to the implementation of power reforms in the state of Haryana. The main objective of HPGCL is to generate power in the state of Haryana from the existing generating stations in most efficient manner on commercial lines and sell whole of the power generated exclusively to Haryana Vidyut Parsaran Nigam Limited and to set up new power projects in the state sector.
Reliance Energy Limited
Reliance Energy Limited, incorporated in 1929, is a fully integrated utility engaged in the generation, transmission and distribution of electricity. It ranks among India's top listed private companies on all major financial parameters, including assets, sales, profits and market capitalization.
A key constituent of the Reliance - Anil Dhirubhai Ambani Group, India's third largest business house, Reliance Energy is India's foremost private sector utility with aggregate group revenues of Rs. 13,017 crore (US$ 3 billion) and total assets of Rs. 12,166 crore (US$ 2.80 billion).
Reliance Energy companies distribute more than 28 billion units of electricity to cover 25 million consumers across different parts of the country including Mumbai and Delhi in an area that spans over 1,24,300 sq. kms. It generates 941 MW of electricity, through its power stations located in Maharashtra, Andhra Pradesh, Kerala, Karnataka and Goa.
Reliance Energy has emerged as one of the leading players in India in the Engineering, Procurement and Construction (EPC) segment of the power sector.
Reliance Energy companies currently pursue several gas, coal, wind and hydro-based power generation projects in Maharashtra, Uttar Pradesh, Arunachal Pradesh and Uttaranchal with aggregate capacity of over 13,510 MW. These projects are at various stages of development.
BRIEF DESCRIPTION OF PLANT LAYOUT
A thermal power station is a power plant in which the prime mover is steam driven. Water is heated; it turns into steam and spins a steam turbine, which drives an electrical generator. After it passes through the turbine, the steam is condensed in a condenser, this is known as a Rankin cycle. The greatest variation in the design of thermal power plant is due to the different fuel sources. Some prefer to use the term energy center because such facilities convert forms of heat energy into electrical energy.
Turbine
There are three types of turbines HP, IP, LP operated at 3000 rpm with initial parameters 13 kg/cm2.The superheated steam enters the HP turbine and strikes its blade hence heat energy of steam is converted into mechanical energy. The steam from HP turbine is reheated in re-heaters and reheated steam is sent to IP turbine through hot steam lines after working here the steam sent to LP turbine where it is ejected by vacuum ejectors and condensed. The direction of revolution of turbine is clock wise when looking at turbine from front bearings pedestal
BOILERS
The boiler is also termed as, steam generator steam generator’ is ’ is a container in which water can be fed and by the a container in which water can be fed and by the application of heat evaporated continuously into application of heat evaporated continuously into steam. The heat source is obtained by burning steam. The heat source is obtained by burning the fuel, which is coal. Water circulates in the fuel, which is coal. Water circulates in the water walls the heat energy is applied to the water walls the heat energy is applied to the water walls and water converted into steam, this water walls and water converted into steam, this steam is fed into upper heaters to remove water steam is fed into upper heaters to remove water particles to obtained superheated steam is fed particles to obtained superheated steam is fed into super heater where water particles is into super heater where water particles is completely removed & finally fed to turbine. Completely removed & finally fed to turbine.
UNIT Auxiliary Transformer
In recent years, large units of a utility power station are usually designed on a unit system basis in which the required devices, including the boiler, the turbine generator unit, and its power (step up) and unit (auxiliary) transformer are solidly connected as one unit.
In addition to the above items, the unit auxiliary type system will incorporate a “common” or “startup” arrangement which will consist of a startup and standby auxiliary transformer connected to the switchyard bus or other reliable source, plus a low voltage switchgear and motor control center arrangement similar to that described above for the unit auxiliary system.
The common bus system may have a similar arrangement for the standby transformer