Emu car shed ghaziabad ppt

1. Industrial training
Electrical Loco Shed, Ghaziabad
Abhishek Singh
Roll No.1229040005

2. SYNTAX USED IN LOCOS
 Standard “Gauge” designations and dimensions:-
W = Broad gauge (1.67 m)
Y = Medium gauge ( 1 m)
Z = Narrow gauge ( 0.762 m)
N = Narrow gauge ( 0.610m)
 “ Type of Traction” designations:-
D = Diesel-electric traction
C = DC traction
A = AC traction
CA=Dual power AC/DC traction
 The “ type of load” or “Service” designations:-
M= Mixed service
P = Passenger
G= Goods
S = Shunting

3. . “ Horse power ” designations from June 2002
(except WDP-1 & WDM-2 LOCOS).
•‘ 3 ’ For 3000 horsepower
•‘ 4 ’ For 4000 horsepower
•‘ 5 ’ For 5000 horsepower
•‘ A ’ For extra 100 horsepower
•‘B’ For extra 200 horsepower and so on.
Hence ‘WDM-3A’ indicates a broad gauge loco with diesel-electric
traction. It is for mixed services and has 3100 horsepower.

4. INTRODUCTION
ESTABLISHMENT
> Electric Loco Shed was set in 1976 by Railway
Electrification Organisation (8910 SQ. MTRS).
> It’s main purpose is of maintenance of
WAP1,WAP4,WAP5,WAP7 ,WAG5, WAM4 engines.
INITIAL COST
Rs. 1.5 (IN CRORES)
PRESENT LOCO HOLDING
184

5.  EMU CAR shed is an industrial-technical setup, where
repair and maintenance works of EMU & MEMU is
carried out, so as to keep the loco working properly.
It contributes to increase the operational life of EMU
& MEMU and tries to minimize the line failures.
 The shed consists of the infrastructure to berth,
dismantle, repair and test the loco and subsystems.
 The shed working is heavily based on the manual
methods of doing the maintenance job and very less
automation processes are used in sheds, especially in
India.

6. The EMU CAR shed usually has:-
 Berths and platforms for loco maintenance.
 Pits for under frame maintenance
 Heavy lift cranes and lifting jacks
 Fuel storage and lube oil storage, water
treatment plant
and testing labs etc.
 Sub-assembly overhauling and repairing sections
 Machine shop and welding facilities.

7. TYPES OF TRAINS IN EMU CAR SHED
• There are three trains are inspection and
maintenance in EMU CAR shed. These are as follow :-
• 1. EMU
• 2. MEMU
• 3. DMU

8. EMU & MEMU

9. 1. EMU – In EMUs one power car (motor coach) is required for three
coaches so for an EMU has 12 coaches in length will have 4 power
cars & mainly runs in the suburban sections of major cities. It
considered as normal local trains such as life line locals of MUMBAI,
HYDERABAD, CHENNI etc.
• 2. MEMU’s – In MEMUs one power car in needed for 4 coaches so
MEMU are normally has 16-20 coaches long. It runs for long distance
more than the suburban sections . It runs on the same line on which
normal Local/Exp/Mail/SF trains runs.
• MEMU – Vadodara – Ahmadabad MEMU
• MEMU were modified EMU’s introduced in 1993-94
• 3. DEMU’s – In DEMU’s , generally runs on diesel which tank capacity
about >4000lts. It named as overhead electric inspection car used in
repair & maintenance of overhead cables which fitted above the roof
of trains carries 25kv A.C supply.

10. NO. OF SECTIONS
1 . MECHANICAL WORKSHOP
2 . ELECTRICAL WORKSHOP
3 . PAINTING WORKSHOP

11. MECHANICAL WORKSHOP
1. MEASUREMENT & INSPECTION SHOP
2. CARPENTARY SHOP
3. PENTOGRAPH SHOP
4. MACHINE SHOP
5. J.S.L TYPE BRAKE CYLINDER SHOP
6. POH SHOP
7. TRANSMISSION SHOP
8. COMPRESSOR SHOP

12. BOGIE

13. BOGIE’s
 A BOGIE is a wheeled wagon or trolley. In
mechanics terms, a bogie is a frame work
which carrying wheels attached to coaches.
 It is subassembly of 2 axle, 4 wheel, 4 brake
cylinder , 2 side bearer, 4 bearing(double
roller bearing), helical spring etc.

14. MEASURING & INSPECTION
No GO NO gauge

15. TYRE DEFECT GUAGE
1. Root wear
2. Sharp flange
3. Thin flange
4. Deep flange
5. Hollow tyre
6. Flat tyre (tyre
condum)

16. TRACTION MOTOR

17. TRACTION MOTOR

18. • Traction motor refers to an electric
motor providing the primary rotational torque to
a machine, usually for conversion into linear
motion (traction).
• Traction motors are used in electrically powered
rail vehicles such as electric multiple
units and electric locomotives, other electric
vehicles such as electric milk floats, elevators,
conveyors, and trolleybuses, as well as vehicles
with electrical transmission systems such
as diesel-electric, electric hybrid
vehicles and battery electric vehicles

19. CARPENTARY SHOP

20. Accessory for maintenance
• Guard seat
• Look out Glass
• Head Code Glass
• Sliding Door
• Cab Main Door
• Window
• Passenger seat

21. Pantograph

22. Pantograph
• Mounted on the roof of an electric train.
• Link between the overhead line and power
circuit of electric locomotive.
• Sliding along a bare contact wire of the
overhead system and conveyed to the roof
line.
• 25 kv power electricity supply from overhead
line to power circuit of electric locomotive.
• 4 to 6kg/cc2

23. Pantograph Dimension
• Length of pantograph – 2427+-5mm.
• Height of insulater bottom of panto -205+-5mm.
• Maxiam height – 2460+-20mm
• Bow height -300
• Number of turn in main spring – 25/26
• sliding angle of bow with wire – 71/2
• Time taking 1.5m height to up – 6sec
• Time taking 1.5m height to down – 10sec

25. Application
• Use on 2kv AC electric locomotive.
• Suitable to use on 25kv AC electric multiple
unit (EMU).
• Suitable for satisfactory operation on electric
locomotive up to 600hp to a speed 130km/hr.
• Rated current 400amp for AC.
• 1100amps for DC application.

26. MACHINE SHOP
Different types of machines are used to maintain or
reshape of the tool.
• Lathe machine
• Lathe pit machine
• Shaper machine
• Radial Drill machine
• Planner machine

27. Pit Lathe machine

28. Type of wear may occur on wheel
• Tread wear
• Root wear
• Skid wear
• Flange wear

29. • For maintaining the required profile pit wheel
lathe are used. This lathe is installed in the pit so
that wheel turning is without disassembling the
axle and lifting the loco and hence the name “pit
wheel lathe”
• Gages are used in this section to check.
• Star gage
• Root wear gage
• Flange wear gage
• J gage

30. RADIAL DRILLING MACHINE

31. • This drill machine to performing a hole in object with
the twist drill.
• Use to produce hole heavier and bigger size job.
• This drill machine rotate in all 3 axis i.e. X-axis, Y-axis,
Z-axis.
• Work pice remain remain stationary while tool
rotates.
• Base made of heavy column.

32. High power-to weight ratio.
Fewer Locomotive
Fast Acceleration
Higher limit of speed
Higher hauling capability
No carbon emission
Less noise pollution
Maintenance cost is 50% of that for steam engine.
Steam engine requires two hours for heat up whereas
electric engine start within moment.
High torque motor are used in electric traction.
ADVANTAGE OF ELECRICAL LOCO

33. Significant capital cost of electrification.
Maintenance cost is high.
Overhead wires further limit the clearance in tunnel.
Railway traction need immune power, with no cuts.
DISADVANTAGES

34. Thank You!!