Vocational Training in Charoda Bhilai

1. 1
PROJECT ON VOCATIONAL TRAINING
IN
ELECTRIC LOCO SHED
YEAR 2015-2016
SUBMITED BY
SHREY ANANT SANDIMAN
VIBHASH GANGULY
SHUBHAM SHRIVASTAV
ANAND KUMAR
Shri ShankaracharyaInstitute of Professional Management & Technology

2. CONTENT
 HISTORY
 RAILWAY TRACK
 INTRODUCTION
 CLASSIFICATION OF LOCOMOTIVE IN
INDIA BY TYPES
 OVERVIEW OF ELECTRIC
LOCOMOTIVE
 ELECTRICAL PARTS OF LOCOMOTIVE
 SOME IMPORTANT PARTS OF CAB
 CONCLUSION
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3. HISTORY
 1st Electric locomotive was built by:-
a Scotsman, Robert
Davidson of Aberdeen in 1837 &
powered by ”BATTERIES”.
 1st Electric passenger train was
presented by:- Werner von
Siemens at Berlin in 1879. Driven by a
2.2 kW motor & reached a maximum
speed of 13 km/h.
 Railways first introduced to India in
1853 & journeyed of 22 miles
Between Bombay to Thane
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4. Railway track
Railway track gauge in India is complicated by historical usage of multiple track guages.
Indian Railways uses four gauges:
1,676 mm (5 ft 6 in) -Broad Gauge (BG),
1,000 mm (3 ft 3 3⁄8 in) -metre gauge (MG),
762 mm (2 ft 6 in) - Narrow Gauge (NG), and
610 mm (2 ft) -Toy Gauge.
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5. INTRODUCTION
 Locomotives in india consist of electric
and diesel locomotives. Locomotives are
also called locos or engines.
 An electric locomotive is
a locomotive powered by electricity
from overhead lines, an on-board energy
storage device such as a
chemical battery or fuel cell.
 Electricity is used to eliminate smoke and
take advantage of the high efficiency of
electric motors.
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Classification of Locomotives in India by Type

7. OVERVIEW OF ELECTRIC LOCOMOTIVE
 Now a days all locos are running through
Electricity with the help of OHE line.
 Pantograph is used to connect the loco with
OHE line.
 Loco contains 2 Bogies, each Bogie consist of
6 wheels. So totally loco consists of 12
wheels.
 Pantograph draws 25 KV of electricity from
OHE line, which is very high AC voltage.
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Pantograph

8. ELECTRICAL Parts of Locomotive
 Transformer
 Rectifier
 Arno Convertor
 Traction Motors
 Air Compressors
 Motor-Alternator
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10. TRANSFORMER
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 Transformer Oil Circulating Pump.
 Transformer Oil Cooling Radiator Blower.
 Output voltage of the Traction converter
2180 V
 Output current
831 A
 Output power
2365 kW
RECTIFIER

11. ARNO CONVERTOR AIR COMPRESSORS MOTOR-
ALTERNATOR
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12. TRACTION MOTORS
 Traction Motors used in Indian loco are of DC series Motors. There are six
Traction Motors, one per each axle is provided. Two types of Traction Motors
are being used in the locomotive. They are TAO 659 and Hitachi.
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13. SOME IMPORTANT PARTS OF CAB
 RHS Loco Control Desk
 LHS Corner Of The Cab
 Ammeters & Voltmeters
 Implementation of Modern Vigilance Control Device
 DJ Main Contactor
 Sanding On locomotive
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14. A view of the RHS corner of the loco control
desk
 "A" - Horn valves
 "B" - Emergency brake flap
 "C" - Flasher light control unit
 "D" - Marker lamps control unit
14Fig.11

15. A view of the LHS corner of the
cab
15Fig.14

16. Ammeters & Voltmeters
 AM4 TM4: This ammeter indicates the current flowing
through Traction motor no. 4. A WAP 4 loco may draw a
max current of 1000 Amps for a max duration of 10 minutes.
Current of 900 Amps may be drawn continuously.
 U-5 TM-5: This volt meter indicates the voltage across
Traction motor no. five. The voltage at no time should
exceed 750 voltage. When a quick acceleration is required
and if the voltage exceeds 750 volts due to rapid increase of
notches, the shunting notch (weak field lever or the "MPS")
may be put into position one after notch 20. This will lead to
an increase in the amps across the traction motors but a
reduction in the voltage across it. The notches may than be
increased and again if the voltage goes up the shunting
notch may be put at position two.
 U-6 TM-6: This voltmeter indicates voltage across Traction
motor six. Old timers may wonder as to why there are two
voltmeters and only one ammeter, because there used to be
two ammeters and one volt meter in all loco upto now. The
reason is that now, higher than permissible voltage across
the TM's for burnt out of TM's
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17. Implementation of Modern Vigilance
Control Device
In Indian Railways, major accidents have been caused due to failure of
Railway staff. Higher incidence of human failures surface as technical
safeguards
and backups do not always replace the human effort. Though an
accident occurs only when both fail but it usually gets logged as ‘human
error’ with a tendency of glossing over technical failure.
Vigilance control device plays a major role to reduce the accidents that
are caused by the pilot of the train Vigilance Control Device (VCD) is a
microcontroller based safety device which will automatically apply
penalty brakes in case the driver is incapacitated or dead.

18. The VCD monitors whether these controls have been operated by the
driver in a 60-second time period. In case the driver has not operated
any controls, the VCD gives a visual warning by activating a flashing
light for 8 seconds. If acknowledgement is not received, an additional
audio alarm is given for 8 sec. If driver further fails to acknowledge the
alarm, a message is send to guard and to signal inspector through GSM
modem as “DRIVER IS NOT ALERT”, here guard is provided with break
to control the VCD. If guard is not applying break within 10 sec then
message is sent to signal inspector as “DRIVER AND GUARD NOT
ALERT” and VCD will initiate the automatic application of brakes and it
informs the position of the train where it is stopped in the form of latitude
and longitude through GSM by using GPS module.
WORKING
Operating cycles Time periods
(seconds)
Indications Possibility to Reset
Vigilance cycle (To) 60±2 None Yes
Warning cycle (T1)
Level 1
8±2 Yellow flashing light Yes
Warning cycle (T2)
Level II
8±2 Yellow flashing light
and alarm sound
Yes
Penalty brake (T3)
Level I
32±2 Yellow flashing light
and alarm sound
No
Penalty brake (T4)
Level II
Until reset Yellow flashing light
and alarm sound
Yes

19. DJ Main Contactor
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DJ control circuit is provided
1. To give starting phase to ARNO.
2. To protect the loco if any of eight auxiliary motors is not
working.
3. To protect the loco if ARNO us not working.
4. To protect RGR.
5. To ensure that GR is on ‘0’ while closing DJ.
6. To protect feeding power circuit from over current and short
circuit.
7. To protect auxiliary power circuit from over current and earth fault.
8. To protect traction power circuit from over current and earth fault.
9. It trips DJ if GR is struck up on full notches while doing quick
regression with MP.
Types of DJ
1. In DJ, there are two types ABCB and VCB.
2. In VCB there are three types double interrupter VCB, single
interrupter horizontal VCB and single interrupter vertical VCB.
3. In ABCB DJ control circuit there are six branches (Q118, Q45,
Q44, C118, EFDJ and MTDJ).
In ABCB DJ closing coil is EFDJ and tripping coil is MTDJ.
4. In VCB DJ (double interrupter and single interrupter
verTICal) control circuit there are five branches (Q118, Q45,
Q44, C118 and MTDJ). In these two types closing coil and tripping
coil is MTDJ.

20. SANDING ON LOCOMOTIVE
 A sandbox is a container on
most locomotives, multiple units and trams that
holds sand, which is dropped on the rail in front
of the driving wheels in wet and slippery
conditions and on steep grades in order to
improve traction.
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21. ADVANTAGES OF ELECTRIC LOCOMOTIVE
 Electric engines do not produce much heat and noise.
 Electric engines are therefore easier to maintain whereas the moving parts of a diesel
engine require constant maintenance.
 The simple nature of the electric engine makes them efficient and powerful.
 Electric engines are light weight, constituting only motors and wheel axles, and have
almost no moving parts.
 Do Not Produce Smock.
 3-ɸ drive allows regeneration and unity power factor operation.
 It improves operational efficiency besides reduction in maintenance efforts. The
energy saving due to regeneration and improved power factor sizable.
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22. CONCLUSION
 Main Objective was to learn electric locomotive In
Railways.
 I am thankful to the supporting people of the Electric
Locoshed Charoda.
 Electricity is used to eliminate smoke and take
advantage of the high efficiency of electric motors.
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