DLW ppt for EEE

2.  Introduction
 History of DLW
 Training Areas
 MRS (Main Receiving Substation)
 MSS (Maintenance Service Sector)
 AC Plant
 Telephone Exchange

4.  DLW is production unit under ministry of railway.
 This is set in collaboration with AMERICAN LOCOMOTIVE
COMPANY (ALCO) U.S.A in 1961, in ancient temple city
Varanasi.
 First locomotive in rolled out in 1964.
 D.L.W is only manufacture of Diesel Electric locomotive with
both ALCO and General Motors Technologies in the world.
 DLW got its first ISO certification in 1997.Recently DLW has
obtained “Integrated Quality and Environment Management
System” certification based on ISO-9001 and ISO-14001 in dec,02.
 DLW exports Locos to SRILANKA ,MALAYSIA,
BANGLADESH,TANZANIA, VIETNAM.

5. Basic Information-
Address- Diesel locomotive works
Varanasi- 221004 (India)
Railway Station- Varanasi
Airport- Babatpur, Varanasi
Telecommunication- Telephone +91-0542-270551 t0 270555
Fax +91-0542-270603
Website www.diesellocomotive.com
Salient feature-
Annual production- 125 Locomotive
Total no. Of Staff- 7223
Workshop Land- 89 hectares
Covered Area Shop- 86300 Sq.m.
Electrical Power Requirement- 3468KVA
(Average Maximum Demand)
Electrical Energy Consumption- 19.8 Million

6.  The word "diesel" is derived from the German inventor Rudolf
Christian Karl Diesel who in 1892 invented the diesel engine.
 Diesel, or diesel fuel, is any fuel that is used to operate a
diesel engine.
 Most commonly, it refers to a specific liquid fuel obtained by
the fractional distillation of petroleum, often called petro
diesel.
 Alternative diesel fuels not derived from petroleum are
biodiesel and biomass to liquid (BTL) or gas to liquid (GTL)
diesel.
 Diesel and petrol both are petroleum product. Yet diesel is
more used.

7. Railway vehicle that provides the motive power for a train
The word originates from the latin loco – "from a place" +
Medieval Latin motivus, "causing motion“
The first successful locomotives were built by Cornish
inventor Richard Trevithick

8. SHOP FLOOR
HWS HMS LMS ROTOR CRP HTS SAS EES ET LFS SMS
TM TMS PS LAS LTS TR PMS INSP MRS
OUTSIDE SHOP FLOOR
MCO SPC DES MKTG AC Plant PCO TOT MOD TTC
ELECT Lab (TTC) WELD Lab Tel.Ex. Colony TOT MOD
PLG EDP

9. MRS MSS
AC PLANT
My four week training was confined
to FOUR different sections
TEL.
EXCHANGE

10.  MRS receives main supply from UPPCL at 33kv. Earlier it
was UPSEB.
 This is step down with 7.5MVA transformer
 The 33kv feeder is transformed is two 11kv feeder with a bus
coupler in between
 The MRS follows the ring type distribution system for
supplying power to DLW

11. Transformer
Control Panel
Bus Coupler
Relays
Circuit Breakers
Capacitor Bank
Switch board Attendant
 Different type of transformer used in MRS
Potential transformer
Current transformer
Distribution transformer

13. It is an automatic- operated electrical
switch
Designed to protect an electrical circuit
from overload or short- circuit
Cuts off the electric current through
electric circuit under abnormal condition.
They are classified as:-
 Low voltage CB
Medium voltage CB
High voltage CB
Oil circuit breaker

14. Load Cylinder Horse power
1780 16 2600 HP
850 12 1200 HP
2250 16 3500 HP
IT CONSIST OF:-
 Cylinder
 Alternator
 VCB
 Prime mover
 Compressor
 Transformer
 Cooling tank
 Breather
 Panel
 Natural grounding relay

15.  There is a RADIATOR
COOLING system:-
in this system
Mobile
( gets cooled by)
Chromate water
(gets cooled by)
Raw water
COOLING SYSTEM

16. Control panel is a flat ,
often vertical area where
control or monitoring
instruments are displayed.
PROTECTION
METERING & INDICATION
BREAKER

17. RELAYS :
 Relays are used for protection of the power system
from different faults
 A relay is a simple electrochemical switch made up of
an electromagnets and a set of contacts
TWO TYPE OF RELAY USED IN MRS :-
(QUANTITY AND AMPLITUDE)
 Definite relay
 Inverse relay

18. CAPACITOR BANK:-
 Power factor should not be brought below 0.8 for industrial loads
 Capacitor bank are placed in parallel with the power supply to improve
power factor
 DLW, 600 & 1200KVAR capacitor bank is used for the improvement of power
factor.
Reason for Improvement of Power Factor:
 Reduced losses
 Reactive power decreased active power increases
 Efficiency of machine increases
Advantages of Using Capacitor Bank:
 Easy to increase the capacity
 Reliability of the system is high
 Controlling of bank is easy
 Maintenance is easy

19.  Deals with maintenance of machine used in the
workshop
 The motors used in DLW are 3-ф induction motor or
DC motors
 Types of maintenance:
1. Break down maintenance
2. Preventive maintenance

20. Cause:
 Generally unpredicted failure of components
 Cannot be prevented
 Occurs due to gradual wear & tear of parts
Prevention :
• Regular inspection
• Watching over wear & Tears

21.  Plane maintenance or schematic point maintenance
 Reduces maintenance cost & to keep the good operational
condition of equipment
 Works on idea “ Prevention Is Better Than Cure”
 Schedule maintenance is best safeguard against costly
breakdowns

22.  Gas used in AC plant at
DLW is F22 (Fioron)
 Compressor oil used is
Servo Super Freiz 68
 The leakage in a AC plant
is checked either by a
Soap solution Or Gas
leakage detector
 Heated gas temperature
is about 370 C

24.  Works on a DC voltage supply of 50V
 DC power obtained from a battery set connected in parallel
with float charging operating on 230V AC
 Exchange is design to perform satisfactory for a loop
resistance of 1000Ω for each subscriber
 Glass fuses are used rating 100mA
 In DLW at a time only 30 STD calls could be made

25.  Dead
 Short circuit
 Disturbances
 Cross-connection
 Wrong dialing
 Earth Fault

26.  Dial tone
 Busy tone
 Ringtone
 Ring back tone
 NU (Non- Obtainable)