PRESENTATION ON:-

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Submitted By: Vishwadeep KapoorAEI-4th year

INTRODUCTION TO TURBO GENERATOR & THEIR AUXILLIARIES

Submitted to:Mr. Anuj Kumar(HOD & ITP Co-ordinator)

Raj Kumar Goel Institute of Technology, Ghaziabad

CONTENT: BHEL Over-View 3 Introduction 4 Blocks in HEEP 5 Designing Process Of Turbo Generator 6 Applications of Turbo Generators 8 Over Speed Balancing Tunnel 10 Manufacturing Of Rotor Windings 11 Advantages Of Turbo Generators 12 Dis-Advantages of Turbo Generators 13 Conclusion 14 Future Scope 15

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OVERVIEW 3

BHEL is the largest engineering and manufacturing enterprise in India in the energy-related/infrastructure sector, today. BHEL was established more than 40 years ago, ushering in the indigenous Heavy Electrical Equipment industry in India - a dream that has been more than realized with a well-recognized track record of performance. BHEL manufactures over 180 products under 30 major product groups and caters to core sectors of the Indian Economy viz., Power Generation & Transmission, Industry, Transportation, Telecommunication, Renewable Energy, etc. The wide network of BHEL's 15 manufacturing divisions, four Power Sector regional centers, over 100 project sites.

INTRODUCTION

Stream turbines generators Gas turbine generators Hydro turbine generators

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Turbo generator is a turbine directly connected to electrical generators for the generation of electric power. These machines are the largest energy convertors found in the world. They can also be used as auxiliary power units.They are of 3 types namely:

BLOCKS IN HEEP:

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1. BLOCK-1: Electrical Machine Shop

2. BLOCK-2: Heavy Fabrication Shop

3. BLOCK-3: Turbine Manufacturing Shop

4. BLOCK-4: CIM (Coils & Insulation Manuf.)

5. BLOCK-5: Condenser Fabrication & Forge Shop

6. BLOCK-6: Fabrication Shop & Die Shop

7. BLOCK-7: Carpentry & Heat Treatment Shop

8. BLOCK-8: Heat Exchanger Shop

DESIGNING PROCESS OF TURBO GENERATOR

Press Shop

Light machine Shop

Heavy Machine Shop

Copper Shop

Coil Shop6

There are 12 designing steps to construct the turbo generator :

Insulation Shop

Rotor Windings

Stator Windings

Balancing

VPI Plant

Assembly

Testing7

APPLICATIONS OF TURBO GENERATORS

Gas Turbines drive the smallest class of turbo-generators. The motive force for these turbines is the burning of gaseous fuels. Because they can be started and stopped easily, they are used for a variety of intermitted applications including emergency power.

Stream turbines drive much bigger turbo-generators . The stream is generated by a variety of methods including burning coal, nuclear power and geothermal energy. There types of turbo-generator supply the bulk of the electrical power in the US and other countries.

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The third class of Turbo-generator are powered by water turbines. Invented in the 19th century water turbines are very efficient devices for extracting energy for moving water. They are used in virtually all hydro-electric power plants world wide.

An emf is induced in a conductor when it is cut by magnetic flux is known as electromagnetic induction.

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Working Principle of Turbo-generator:

OVER SPEED BALANCING TUNNEL:

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Features: Max. thickness of tunnel : 2500mm Tunnel diameter : 9000mm Min. vibration limit : 1micron Over speed limit : 2500 to 4500 rpm Rotor balancing of max. : 600Mw rating Type of pedestal : DH 90/ DH 12

MANUFACTURING OF ROTOR WINDINGS

Solid rotor Laminated rotor

Rotor Shaft Rotor Slot wedges Damper holes Rotor retaining rings Fans

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The rotor in turbo generator is the magnetic field this are of two types:

The Main Parts of Rotor:

ADVANTAGES OF TURBO GENERATORS

Turbo generator concept is simple and time testing.

It can be generated from the renewable energy sources which are environmental friendly.

The life span of the machine is long.

Economic in cost compare to other generators, hence in US 90% of electrical generation is done by turbo generators.

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DIS-ADVANTAGES OF TURBO GENERATORS

As the turbo generators is high voltage machine the possibility of causing a spark in air and the danger of electric shock by contact may occur.

Repairing cost is high.

Maintenance cost is high.

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CONCLUSION

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As turbo generators are high voltage machines which are ranging from less than 1500volts. Hence the machine efficiency is accurate. Turbo generators are also more reliable in nature. As the production of sources are taken from the non-renewable energy sources the cost is economic.

FUTURE SCOPE

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The scientists are investing the technical and logistical merit of performing offline quadratic rate partial discharges test on the stator winding insulation besides VPI technique of turbo generators. A series of laboratory based insulation research studies on stator bars have been conducted to gain a better understanding of the various parts discharge phenomenon involved.

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Thank

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