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Presentation on Dehar power house(DPH), slapper
- 1. OUTLINE OF PRESENTATIONOUTLINEOF PRESENTATION • Introduction • Objectives of the Training • Profile of the Company/ Department • Work/Project Carried Out • Detail of The Training • Your Training Work Experience • Conclusion of Training 1 SIRDA INSTITUTE OF ENGINEERING A TECHNOLOGY A Presentation On Dehar Power House 1 PRESENTED TO PRESENTED BY
- 2. INTRODUCTION The training isundergone at Hydro Power Grid (Dehar Power House) and learn the exciting features related to electronics and electrical.
- 3. OBJECTIVES OF THETRAINING To understand the basic principles of: • PLCC( Power Line Carrier Communication) • Excitation System • Protection schemes • Transformer • Switch yard .
- 4. About Dehar PowerProjectAbout Dehar Power Project Generating UnitsGenerating Units 6Nos.6Nos. Type of UnitsType of Units Vertical FrancisVertical Francis Capacity per UnitCapacity per Unit 165MW165MW Maximum HeadMaximum Head 341.4m (1120 Ft)341.4m (1120 Ft)
- 5. 5 Inner View OfDPH 10/11/1983 12/6/1989 2/11/1977 3/3/1978 12/6/1979 14/7/1983
- 6. Feature of DeharPower HouseFeature of Dehar Power House Name of the Powerhouse Dehar power House Year Commissioned 1986 Total Installed Capacity (MW) Sum of IC of all turbines 6 X 165 MW Type of Turbines Francis(6) Speed (rpm) 300rpm Number of Penstocks 6 Dia. of Penstocks 3.35m dia Full Reservoir storage capacity 3000 Acre ft.
- 7. Components of HydroelectricPower PlantsComponents of Hydroelectric Power PlantsComponents of Hydroelectric Power PlantsComponents of Hydroelectric Power Plants RESERVOIR CONTROL GATE PENSTOCK TURBINE GENERATOR TRANSFORMER SWITCH YARD
- 8. How a HydroelectricPower System Works How a Hydroelectric Power System Works
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- 10. Top View OfFrancis TurbineTop View Of Francis Turbine SERVO MOTER PISTON SHAFT
- 11. Guide vane servomotorGuidevane servomotor GUIDE VANES
- 12. Parts Of GeneratorPartsOf Generator STATOR ROTOR
- 13. Top View OfGeneratorTop View Of Generator DC EXCITER RUNNER STATOR
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- 15. For SafetyFor Safety CIRCUITBREAKER CO2 GAS CYLINDER
- 16. PLCC PLCC is themethod of transmitting information using power network.
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- 18. WAVETRAP Offer negligible impedanceto power frequency & high impedance to carrier frequency
- 19. COUPLING CAPACITOR • Itis a stack of capacitors connected in series. • Has highest possible surge withstand capacity, offer lowest series resistance at carrier frequency.
- 20. ADVANTAGES • No separatewires are needed for communication purpose. • Both communication and power transfer can be possible on same circuit. • Power lines provides the shortest route between the power station. • Higher mechanical strength. • Increased reliability. • Lower attenuation over long distance. • Implementation cost is reduced.
- 21. Applications • Point topoint communication. • Load sharing. • Power line protection. • Fault indicator.
- 22. EXCITATION SYSTEM The processof generating a magnetic field by means of an electric current is called excitation.
- 23. TYPES OF EXCITATION •Separate Excitation • Self Excitation
- 24. SWITCH YARD The mainfunction of switchyard is to transmit & distribute the power at incoming voltage from the generating station and provide facilities of switching by the help of switchgears.
- 25. Line diagram ofswitchyard
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- 27. From Dehar switchyardthe following transmission lines evacuate the power: 400KV Dehar-Panipat (single Ckt) : 262 Kms 400KV Dehar-Bhiwani (single Ckt) : 312 Kms 220KV Dehar-Ganguwal-1&2 (Double Ckt) : 56 Kms 220KV Dehar-Kangoo Line (Single Ckt.) : 3 Kms 132KV Dehar-Shimla line (Single Ckt.) : 58 Kms
- 28. Types Of Switchyard •AIS (Air Insulated Switchyard): This is the most common type of switchyard; here the switchyard is present outside and open to the atmosphere. • GIS (Gas Insulated Switchyard): This type of switchyard is generally found where the space available is very less and they are generally located inside a closed room with proper isolation.
- 29. Components OF Switchyard •Insulator • Surge Arrester • Isolator • Earth switches on Isolator • Circuit breaker • Current transformer • Potential transformer
- 30. Surge Arrester A surgearrester is a device to protect electrical equipment from over-voltage transients caused by external (lightning) or internal (switching) events.
- 31. Isolater In electrical engineering, adisconnector, disconnect switch or isolator switch is used to ensure that an electrical circuit is completely de- energized for service or maintenance.
- 32. Transformer Transformer is anelectrical device whose main purpose is to transfer power from one electrical circuit to another circuit, but apart from this transformer is also a constant frequency, constant power and constant flux device. Transformer works on the principle of Faradays Law of electromagnetic Induction
- 33. Current Transformer A currenttransformer (CT) is a transformer that is used to produce an alternating current (AC) in its secondary which is proportional to the AC current in its primary.
- 34. Capacitor Voltage Transformer Acapacitor voltage transformer (CVT or CCVT), is a transformer used in power systems to step down extra high voltage signals and provide a low voltage signal, for metering or operating a protective relay.
- 35. Inter connecting transformer ICT(Interconnecting transformer)belongs to the class of power transformers which is used in major substations. The function of the interconnecting transformer as the name suggests to interconnect two. systems at different voltages.
- 36. Potential transformer Voltage transformers(VT), also called potential transformers(PT), are a parallel connected type of instrument transformer. They are designed to present negligible load to the supply being measured and have an accurate voltage ratio and phase relationship to enable accurate secondary connected metering.
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