project on dlw
TRANSCRIPT
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INTRODUCTION TO DIESEL-ELECTRIC LOCOMOTIVES
Rajesh Kumar Yadav
3rd year, Mechanical SIET,Greater Noida
Uttar Pradesh
By
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ABOUT DLW Established in 1961 in collaboration with ALCO/ USA One of the few Integrated Loco Builders in the World In-house manufacture of components and sub-
assemblies Largest builder of ALCO & EMD design locos In the process of switching over to production as per
EMD loco technology Transfer of Technology Contract with EMD/General
Motors for manufacturing of passenger and freight versions of 4000-4500 HP locomotives, including 710 series engine
Manufacture of Diesel Generating sets ISO 9001, ISO 14001 and OHSAS 18001certified
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Diesel Electric Locomotive
It consist of the following-
1. Power Source- Diesel Engine
2. Transmission system- Electrical (i.e. Alternator & TM).
3. Control System- Electrical/Electronic.
4. Bogie
The above four system are synchronized with
5. Structures - U/F.ASM
6. Super Structure- Long Hood ASM & Cab.
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Underframe ASM
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FUEL TANK (WDG4)
Capacity-6000 Ltrs.
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Diesel Electric Locomotive Energy conversion
DIESEL ENGINE Generator Motor
Chemical
Energy
Mechanical
energy
Electrical
energy
Kinetic
energy
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Electrical Transmission Mechanical – Electrical - Mechanical
•DC –DC (Pre1960, up to 1985) : DC generator supplying DC traction motors.
•AC - DC (1960-94, 1990s onwards) : AC alternator output rectified to supply DC motors.
•AC – AC (After 1994, 2002 onwards) : AC alternator output rectified to DC and then
inverted to 3-phase AC for the traction motors.
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ENGINE
16-710G3B (Turbocharged , Aftercooled , Open Chamber)
NOMENCLATURE 16 710 –G3-B I-09- A - 001
NO. OF CYL.
SWEPT VOLUME
RAIL ROAD UPGRADED
TURBO CHRGED ENG
NEW GENRATION
FUEL ECONOMY
ENGINE
INDIA YEAR MONTH ENG. SL. NO.
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TURBO END
ACCESSORY END
Front end Rear end
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TRACTION MOTOR
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DESIGN Bore = 230.1 mm
Stroke = 279.4 mm
CR = 16:1
PFP = 127.6 bar (1850 psi)
BMEP = 11.23 bar ( 163 psi)
Mean Piston Speed = 8.38 m/sec
Weight 17962 Kg
Weight of Engine + Lube Oil + water}
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POWER TRANSMISSION SYSTEM
D E ALTERNATOR CONTROL
SYSTEM
AXLE
TRACTION
MOTOR
WHEEL
BLOCK DIAGRAM
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Classification of Indian Locomotives
• In India, locomotives are classified according to their track gauge, motive power, the work they are suited for and their power or model number.
• The class name includes this information about the locomotive.
• It comprises 4 or 5 letters.
• The first letter denotes the track gauge.
• The second letter denotes their motive power (Diesel or Electric).
• The third letter denotes the kind of traffic they are suited for(goods, passenger, mixed or shunting).
• The fourth letter used to denote locomotives' chronological model number.
• However, from 2002 a new classification scheme has been adopted. Under this system, for newer diesel locomotives, the fourth letter will denote their horsepower range.
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• Electric locomotives don't come under this scheme and even all diesel locos aren't covered. For them this letter denotes their model number as usual.
• With the new scheme for classifying diesel locomotives (as mentioned above) the fifth item is a letter that further refines the horsepower indication in 100 hp increments: 'A' for 100 hp, 'B' for 200 hp, 'C' for 300 hp, etc.
• Thus a WDM-3A refers to a 3100 hp loco, while a WDM-3F would be a 3600 hp loco.
Classification of Indian Locomotives
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• The first letter (gauge) • W-broad gauge • Y-meter gauge • Z-narrow gauge(2.5 ft) • N-narrow gauge (2 ft)
• The second letter (motive power) • D-Diesel • C-DC electric (can run under DC traction only) • A-AC electric (can run under AC traction only) • CA-Both DC and AC (can run under both AC and DC tractions), 'CA' is considered a single
letter • B-Battery electric locomotive (rare)
• The third letter (job type) • G-goods • P-passenger • M-mixed; both goods and passenger • S-Used for shunting (Also known as switching engines or switchers in United states and
some other countries) • U-Electric multiple units (used as commuters in city suburbs) • R-Railcars
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• For example, in "WDM 3A":
• "W" means broad gauge
• "D" means diesel motive power
• "M" means suitable for mixed(for both goods and passenger)service
• "3A" means the locomotive's power is 3,100 hp ('3' stands for 3000 hp, 'A' denotes 100 hp more)
• Or, in "WAP 5":
• "W" means broad gauge
• "A" mean AC electric traction motive power
• "P" means suitable for Passenger service
• "5" denotes that this locomotive is chronologically the fifth electric locomotive model used by the railways for passenger service.
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