MANDSAUR INSTITUTE OF TECHNOLOGY

A Seminar Presentation On Vocational Training

At DIESEL SHED RATLAM

(Western Railway)

Submitted by :- RAHUL MALIM.E.- (VII th Sem.) 0702ME121058

Submitted to :-MECHANICAL DEPARTMENT

From 15/06/2015 to 30/06/2015

session 2015-16

Contents

• Introduction (Diesel Shed & Diesel Locomotives)• Day 1 to 2 (Maintenance)• Day 3 to 5 (Starting System, Generator, Motors & Batteries)• Day 6 to 7 (Fuel-Oil System)• Day 8 to 9 (Air Compressor)• Day 10 to 11 (Braking System )• Day 12 to 13 (Safety Devices)• Day 14 to 15 (Lubrication)• Manufacturing• Engine Block,, Water Cooling System,WDM2A WDM3A• Pictures & Certificate

INTRODUCTION(Diesel Shed & Diesel Locomotives)

Brief History:- Ratlam Diesel Shed, Located on the main line

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

locomotives on 1st May 1967. As on today the shed has

holding of 125 locos comprising of WDM2A, WDM3A, class

locomotives.

Brief Details of Diesel Shed RatlamYear Of Establishment 1st May, 1967ISO Certification Year

ISO : 9001-2008ISO : 14001-2004ISO : 18001-2007

Integrated Management System Certification achieved on 04.09.2009( OSAS )

(Occupational Health & Safety Assurance Series)

Total LOCO Homing Capacity 125 LocosEmployees Strength 1120

No. of Officers 15No. of Supervisors 132

Total Area 119000 m2 (Approx.)Covered Area 6902 m2 (Approx.)

Percentage of Staff housed in Railway Quarters

50.75%

Power Consumption 2400 Unit per day (Avg.)Water Consumption 1.5 Lacks liters/day

Shed Consumption of Fuel 488.6liters/Loco/Month (Avg.)

Purpose of Diesel Shed

Maintenance

Service

Fix Time Fix Distance

Repair

When Problem Occur in

Locomotive

Starting System of Locomotive(Generator, Motor, Battery)

Engine Generator

Exciter Generator No. of Batteries- 8 (9 VOLT

each)

Motor 1(735V)+ (400 HP)

Motor 2(735V)+ (400 HP)

Motor 3(735V)+ (400 HP)

Motor 4 (735V)+ (400 HP)

Motor 5(735V)+ (400 HP)

Motor 6(735V)+ (400 HP)

Motor Control Device – Armature current control reactor (ACCR) (A.C. supply)

Power Transmission System - Electrical & Mechanical, The 400 HP is transmitted by each motor to each Wheel axle

Braking System In Diesel Locomotive

Brake Pipe Pressure – 5 kg/cm²

Types of Braking System• Air Brake – 1) Independent(without load) 2) Automatic (Whole train is connected). 3) Emergency.

• Dynamic Brake – Electrical.

Air Compressor

Supply of Air From CompressorFrom MR Tank No.1 – Sand Gear

Viper Motor

Air Compressor

Horn

MR Safety valve

From MR Tank No.2 – All Braking Systems

MR Pressure Gauge

Air Pressure at MR Tanks – 10 kg/cm²

Lubrication SystemLube Oil Pressure - (Max.) 9.5kg/cm² (Min.) 1.6kg/cm²

LUBE OIL SYSTEM IN V-SHAPED DIESEL ENGINECRANK SHAFT OF V-SHAPED DIESEL ENGINE

Manufacturers• Manufacturers Alco (American Locomotive Company), DLW (Diesel Locomotive Works, Varanasi)

• Engine Alco 251-B, 16 cylinder, 2,600 hp (2,430 hp site rating) with Alco 710/720/?? turbo supercharged engine. 1,000 rpm max, 400 rpm idle; 228 mm x 266 mm bore/stroke; compression ratio 12.5:1. Direct fuel injection, centrifugal pump cooling system (2,457 l/min at 1,000 rpm), fan driven by eddy current clutch (86 hp at 1,000 rpm)

• Governor GE 17MG8 / Woodward's 8574-650 / Medha MEG 601

• Transmission Electric, with BHEL TG 10931 AZ generator (1,000 rpm, 770 V, 4,520 amperes)

• Traction motors GE752 (original Alco models) (405 hp), BHEL 4906 BZ (AZ?) (435 hp) and (newer) 4907 AZ (with roller bearings)

• Axle load 18.8 tones, total weight 112.8 t

• Bogies Alco design cast frame trimount (Co-Co) bogies The class WDM-2 is Indian Railways' workhorse diesel locomotive. The first units were imported fully built from the American Locomotive Company (Alco) in 1962. Since 1964, it has been manufactured in India by the Diesel Locomotive Works (DLW), Varanasi. The model name stands for broad gauge (W), diesel (D), mixed traffic (M) engine. The WDM-2 is the most common diesel locomotive of Indian Railways. the gear ratio is 65:18.

Engine Block

Turbo-Super Charger

Water Present in whole loco – 1210 LitersWater Cooling System

PICTURES