HIGH SPEED OHE OF INDIAN RAILWAYS

1. HIGH SPEED OHE OF INDIAN RAILWAYS ISSUES CHALLENGES OPTIONS Presented by – J. N. LAL SENIOR EXECUTIVE DIRECTOR (TRACTION INSTALLATION) RESEARCH DESIGNS AND STANDARDS ORGANISATION

2. INTRODUCTION RESEARCH DESIGNS AND STANDARDS ORGANISATION

3. RAILWAY SYSTEM • ENERGY EFFICIENT • TRANSPORT FOR MASS MOVEMENT RESEARCH DESIGNS AND STANDARDS ORGANISATION

4. ENERGY EFFICIENCY OF RAILWAY SYSTEM • PASSENGER TRAINS • EMITS 10 TIMES LESS GREEN HOUSE GASES THAN ROAD PASSENGER VEHICLE • FREIGHT RAIL VEHICLE • EMITS 27 TIMES LESS GREEN HOUSE GASES THAN ROAD VEHICLE • CONTINUED . . . RESEARCH DESIGNS AND STANDARDS ORGANISATION

5. HIGH SPEED • ROAD VEHICLE • CAN OFFER 110 – 120 KMPH SPEED • HIGH SPEED TRAINS • OFFER MUCH FASTER SERVICE THAN ROAD VEHICLE RESEARCH DESIGNS AND STANDARDS ORGANISATION

6. ELECTRIC TRACTION IN INDIA • ENERGY EFFICIENT RESEARCH DESIGNS AND STANDARDS ORGANISATION

7. OVERHEAD CONDUCTOR SYSTEM • AS COMMISSIONED DURING EARLY ELECTRIFICATION ON 15.12.1959 • CATENARY WIRE: 65 sq. mm (MESSENGER WIRE) • CONTACT WIRE: 107 sq. mm (CONTACT LINE) RESEARCH DESIGNS AND STANDARDS ORGANISATION

8. PRESENT SCENARIO PRESENT STATUS OF ELECTRIFICATION (UPTO 31.03.2012) TRAFFIC CARRIED BY ELECTRIC TRACTION (2011-12) RESEARCH DESIGNS AND STANDARDS ORGANISATION

9. DEVELOPMENT OF FREIGHT WAGONS RESEARCH DESIGNS AND STANDARDS ORGANISATION

10. EVOLUTION OF PAY LOAD FOR BOXN INSTRUCTION FOR STANDARD RAKE LOAD (PAY LOAD) ISSUED BY RAILWAY BOARD RESEARCH DESIGNS AND STANDARDS ORGANISATION

11. PERFORMANCE: FREIGHT TRAFFIC RESEARCH DESIGNS AND STANDARDS ORGANISATION

12. SPEED POTENTIAL OF PASSENGER COACHES/TRAINS RESEARCH DESIGNS AND STANDARDS ORGANISATION

13. PERFORMANCE: PASSENGER TRAFFIC RESEARCH DESIGNS AND STANDARDS ORGANISATION

14. DEVELOPMENT OF TRACK TECHNOLOGY Axle Load Railway (DFC) 4800 rkm (7.6% of Total rkm) 26000 rkm (41% of Total rkm) RESEARCH DESIGNS AND STANDARDS ORGANISATION

15. ADOPTION OF HIGHER RAIL SECTIONS RESEARCH DESIGNS AND STANDARDS ORGANISATION

16. ADOPTING LONGER LENGTH RESEARCH DESIGNS AND STANDARDS ORGANISATION

17. INTRODUCTION OF HIGHER HORSE POWER ELECTRIC LOCOMOTIVES RESEARCH DESIGNS AND STANDARDS ORGANISATION

18. DEVELOPMENT OF ELECTRIC LOCOS RESEARCH DESIGNS AND STANDARDS ORGANISATION

19. OVERHEAD CONDUCTOR SYSTEM • AS ON 01.02.2012 (EVEN AFTER 53 YEARS OF COMMISSIONING) • CATENARY WIRE: 65 sq. mm (MESSENGER WIRE) • CONTACT WIRE: 107 sq. mm (CONTACT LINE) RESEARCH DESIGNS AND STANDARDS ORGANISATION

20. EVOLUTION OF TRACTION POWER DENSITY * TRACTION POWER DENSITY OF THE SECTION WHILE TRACTION TRANSFORMERS ARE WORKING WITH OIL NATURAL AIR FORCED COOLING CONDITION. RESEARCH DESIGNS AND STANDARDS ORGANISATION

21. SUMMARY OF POPULATION OF TRACTION SUB-STATION RESEARCH DESIGNS AND STANDARDS ORGANISATION

22. SPACING BETWEEN SUBSTATIONS • DEPENDING UPON THE TRACTION POWER REQUIREMENT, • EITHER EXISTING TRACTION SUB-STATIONS HAS BEEN AUGMENTED (FROM 10 MVA TO 21.6/30.24 MVA AND FURTHER TO 30/40 MVA) • OR • ADDITIONAL TRACTION SUB-STATION HAS BEEN ADDED • SPACING BETWEEN TWO TRACTION SUB-STATION HAS BEEN REDUCED FROM 70 KMS TO 20 KMS (APPROX.) • FURTHER REDUCTION OF TRACTION SUB-STATION SPACING WILL HAVE ADVERSE EFFECT ON THE PERFORMANCE OF ELECTRIC LOCOMOTIVE AND THEREBY ON TRAIN OPERATION. RESEARCH DESIGNS AND STANDARDS ORGANISATION

23. HIGH SPEED OHE OF INDIAN RAILWAYS ―ISSUES RESEARCH DESIGNS AND STANDARDS ORGANISATION

24. HIGH SPEED OHE OF IR ISSUES • ACCOMODATION OF HIGHER SPEED ON EXISTING OVERHEAD INFRASTRUCTURES • MEETING POWER QUALITY NORMS WHILE INCREASING TRANSFORMATION CAPACITY OF TRACTION SUB-STATIONS • INCREASING FAILURE TOLERANCE OF TRACTION DISTRIBUTION SYSTEM • ACHIEVING HIGHER SYSTEM RELIABILITY • REDUCING LAND REQUIREMENT FOR HIGHER TRACTION POWER DELIVERY RESEARCH DESIGNS AND STANDARDS ORGANISATION

25. HIGH SPEED OHE OF INDIAN RAILWAYS ―CHALLENGES RESEARCH DESIGNS AND STANDARDS ORGANISATION

26. HIGH SPEED OHE OF IR CHALLENGES (160 KMPH) • FOR ONE/ TWO TRAINS • REPLACEMENT OF CONTACT WIRE • 107 sq. mm 150 sq. mm • (WITH 1200 Kgf TENSION IN CATENARY & CONTACT WIRE) • CHANGE OF DROPPER SCHEDULE • (WITH 50 mm PRE SAG) • MULTI ZONE PROTECTION SYSTEM • FOR REGULAR SERVICES • ADOPTION OF 2X25 kV AT SYSTEM RESEARCH DESIGNS AND STANDARDS ORGANISATION

27. HIGH SPEED OHE OF IR CHALLENGES (200 KMPH) • ADOPTION OF 2X25 kV AT SYSTEM • ADOPTION OF LIGHT BRACKET ASSEMBLIES • ADJUST THE CONTACT WIRE GRADIENT • (FROM 3 mm TO 2 mm/meter – ABSOLUTE) • (FROM 1.5 mm TO 1 mm/meter – RELATIVE) • MAINTAIN MINIMUM DROPPER LENGTH • (500 mm) •  VALIDATION OF OHE • BY EN-50317, EN-50318 & EN-50367 RESEARCH DESIGNS AND STANDARDS ORGANISATION

28. HIGH SPEED OHE OF INDIAN RAILWAYS ―OPTIONS RESEARCH DESIGNS AND STANDARDS ORGANISATION

29. HIGH SPEED OHE OF IR OPTIONS – CORPORATE IMPERATIVE • TO INCREASE THROUGHPUT • TO MEET THE PUBLIC NEED • TO COPE UP WITH INCREASED GDP OF THE COUNTRY • TO BOOST UP THE ECONOMY OF THE COUNTRY • FOR SURVIVAL OF IR IN THE TRANSPORT SECTOR • CONTINUE . . . RESEARCH DESIGNS AND STANDARDS ORGANISATION

30. HIGH SPEED OHE OF IR OPTIONS – CORPORATE IMPERATIVE • ACTION POINTS • MAIL EXPRESS AT 160 KMPH • 200 KMPH • PASSENGER SERVICES AT 100 KMPH • (MEMU – 18 COACH RAKE) • GOODS SERVICES AT 100 KMPHS • (WITH HIGHER AXLE LOAD–25 TONNES/32.5 TONNES) • INCREASE OF PAYLOAD TO TARE RATIO • INTRODUCTION OF LIGHT WEIGHT COACHES RESEARCH DESIGNS AND STANDARDS ORGANISATION

31. THE ETERNAL QUESTION • “YAKSHA PRASHNA” (THE ETERNAL QUESTION): • “WHAT IS THE ULTIMATE SURPRISE?” • YUDHISHTIR ANSWERED: • “THE MOST IMPORTANT AND VALUABLE FACTORS ARE MOST HIDDEN AND FORGOTTEN” • WHAT WE SEE? • WE SEE AND APPRECIATE THE MODERN RAILWAYS BUT NOT THE TECHNOLOGICAL EXCELLENCE. • WE SEE SUCCESS STORY OF ELECTRIC TRACTION ON IR BUT NOT THE NEED TO CONTINUALLY UPGRADE THE TRACTION DISTRIBUTION SYSTEM. RESEARCH DESIGNS AND STANDARDS ORGANISATION