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VOCATIONAL TRAINING REPORTAGRA LOCOMOTIVES

SUBMITTED BY-UTKARSH CHANDRA

1305220054

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CONTENT HISTORY RAILWAY TRACK INTRODUCTION CLASSIFICATION OF LOCOMOTIVE IN

INDIA BY TYPES OVERVIEW OF ELECTRIC

LOCOMOTIVE ELECTRICAL PARTS OF

LOCOMOTIVE VIGILANCE CONTROL SYSTEM CONCLUSION

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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

Von Siemens Experimental Train

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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), and610 mm (2 ft) -Toy Gauge.

INTRODUCTION(AGRA Locomotives)

Brief History:- AGRA LOCMOTIVE, Located on the main line

between Delhi-Mumbai, started with a meager holding of 15

locomotives on 20th JULY 1993. As on today the shed has

holding of 126 locos comprising of WDM2A, WDM3A,

Inferior Service (WDM2A)-14, WDS6-04 and WDS4B-07

class locomotives.

TYPES OF LOCOMOTIVE1.In case of Electric locomotives1. WAP-1, WAP-4, WAM-4, WAg-5/6/7 and WCAM-1/2/3 used DC Series Motors for traction.2. WAP-5/7 and WAG-9 have three phase induction motors for Traction.

2.In case of Diesel  locomotives1. WDM-2/3A/3D/3F, WDG-3A WDP-1/3A type locomotives use DC Series motors for traction (ALCO locomotives)

2. WDP-4/4B/4D and WDG-4/4D type locomotives use  three phase induction motors for Traction.

Purpose of Diesel ShedMaintenance

Service

Fix Time Fix Distance

Repair

When Problem Occur in

Locomotive

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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.

Pantograph

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ELECTRICAL Parts of Locomotive Transformer Rectifier Arno Convertor Traction Motors Air Compressors Motor-Alternator

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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.

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.

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.

HOW DOES IT WORKS

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

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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.

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CONCLUSION Main Objective was to learn electric

locomotive In Railways. Electricity is used to eliminate smoke and take

advantage of the high efficiency of electric motors.

I am very thankfull to people of AGRA locomotive.