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north-western railway ,ajmer rajasthan.pptx
- 1. Presentation on North Western Railway Workshop Ajmer(RAJASTHAN) This presentation dedicated to Dy chief electrical engineer (Mr. manish goyal ) and Mr. satyaveer yadav ADME north western railway workshop ajmer (rajasthan). • M y sir M r. radheshyam sharma (section engineer R.AC. Deptt) Mr upendra sharma (section engineer). • Its also dedicated my respected senior Mr. sumit selwal. And prajapat sir (jen) . Mr. ashok (senior technician electrical deptt).
- 2. M r. VINESH AGARWAL (HOD. EE. ITM COLLEGE BHILWARA) SEMINAR COORDINATOR Mrs. Aparna chaturvedi ( astt professor) Mrs. alka agarwal ( astt professor) M r . Shankar godwal ( astt professor nirma university)
- 3. also thanks
- 5. A SEMINAR ON NORTH WESTERN RAILWAY WORKSHOP, AJMER Presented by : Hariom sharma ITM COLLEGE BHILWARA
- 6. North western railway workshop Ajmer 1 diesel loco and wagon workshop 2 carriage workshop 3 electrical workshop
- 7. RAILWAY WORKSHOP ELECTRICAL DEPARTMENT Introduction(ELECTRICAL DEPT.) Railway power house • Diesel Power Station Train lighting • Refrigeration and air conditioning
- 8. INTRODUCTION Electrical Department plays a vital role in the Railway System. . It is responsible for operation and maintenance of lighting and ventilation in AC and Non-AC coaches in railways workshop ajmer. The Electrical Department has been divided into two wings: -Electrical Services department -Railway power house -Diesel power station - Train Lighting & Air-Conditioning (TL&AC).
- 9. Railway power house • CONTENTS ➢ Equipment Used In Railway Power House Substations 1 Power Transformer 2 Distribution transformer 3 Instrument Transformer 4 Potential Transformer 5 Current Transformer 6 Circuit Breaker 7 Lightning Arresters
- 10. SEQUENCE OF YARD COMPONENTS
- 11. 33/11 kv open switch yard of Railway Power House
- 12. Lightning Arresters:- • A surge arrester or lightning arrester is a device connected between line and earth. To discharge lightning over voltages and switching over voltages to earth
- 13. Types of lightning arrester Rod gap LA Valve type LA Horn type LA Expulsion type LA Multi gap LA
- 14. Wave trap • To prevent high frequency signals from entering other zones.
- 15. isolators • Disconnection under no-load condition for safety, isolation and maintenance.
- 16. Transformer Transformer is a static device which transfers electrical energy from one electric circuit to another electric circuit at constant frequency.
- 17. TYPES OF TRANSFORM ER According to Construction: a.Core type Transformer. b.Shell Type Transformer. According to the system of windings used in the Transformer. a.Single phase T/R. b.Three phase T/R According to system of cooling to the Transformer. a.ONAN (Oil Natural Air Natural) b.OFAN (Oil Force Air Natural) c.ONAF (Oil Natural Air Force) d.OFAF (Oil Force Air Force) • According to use a.Power Transformers i.Above 500 to 15000 K.V.A. b.Distribution Transformers i.From 5 to 500 K.V.A. c.Instrument Transformers i.Used with the measuring instruments d.Auto Transformers Used for low voltage circuits.
- 19. • CURRENT TRANSFORMER • POENTIAL TRANSFORMER TYPES OF INSTRUM ENT TRANSFORM ER
- 20. CURRENT TRANSFORMER • • Current transformer is used for measurement of current and as a protective device. • It connect line to line in the sub stations. sec. turns > primary turns • the ratio is given by I1/I2 =N2/N1
- 21. POTENTIAL TRANSFORMER • Potential transformer is used for measurement of voltage and protection
- 22. CIRCUIT BREAKERS • A circuit breaker is a equipment which can break a ckt automatically under fault conditions. TYPES OF CIRCUIT BREAKER ➢ Air blast ckt breaker ➢ Sf6 ckt breaker ➢ Minimum oil ckt breaker ➢ Vaccum ckt breaker
- 23. DIESEL POWR STATION :- Diesel Power station is the most important part of Railway Power House. We can say it, an energy power sources for railway, when R.S.E.B. supply is failure due to any reason.
- 24. 1750 kw D.G. set of railway power house
- 25. Engine No. B.H.P. Type No. of cylinder Bore Stroke 1.2007 021330 2496 16V9x 10.5 251 B Max. Crank Shaft 16 9 ” 10 .5
- 26. TRAIN LIGHTING • On the basis of generation following train lightning system are used :- (EOG) End On Generation 1) Generating Voltage 415 V 2) Generating Voltage 450V (MOG) Mid On Generation (SGS) Self Generating System 1)24 V DC (from Alternator) 2) 110 V DC (Alternator)
- 27. End On Generation • In this type of system electricity is generated by power car. • This system is used in trains having AC coaches like Rajdhani express, Shatabdi express etc. Two type of power cars are used • 1) 415 V, 3 Phase AC • 2) 750 V, 3 Phase AC
- 29. Mid on generation • This train lightning system is used on small branch lines, hill area. In this system power car is used in the middle of all coaches therefore it is called as Mid On Generator
- 31. Self on generation • In self generating coach electricity is generated in coach by the generating equipment. • In old T/L system dynamo was used but in modified system brushless alternator are used
- 33. Refrigeration and airconditioning • Refrigeration • Refrigeration is a process in which work is done to moving heat from one location to another. • Air conditioning • Air conditioning is the removal of heat from indoor air for thermal comfort.
- 36. • R-134 is compatible with synthetic oil. It is not much harmful to ozone layer and safe according to global warming.
- 37. Components of Refrigeration cycle • • • Refrigeration cycle has four basic components to work: The evaporator unit The expansion valve The compressor The condenser