I am rahul .i want a electic loco sheet report.

. TECHNICAL TRAINING REPORT ON ELECTRIC LOCOMOTIVE SHED AT SOUTH EASTERN RAILWAYS, SANTRAGACHI PRESENTED BY AARTI OJHA (122604001002) BCETW, EE 4th YEAR
2. •The ISO-9001-2008 certified South Eastern Railways Electric Loco Shed situated in SANTRAGACHI. •It is a solo loco shed in Kharagpur Division that maintains the WAP-4 locomotives . •The main objective of this loco shed is to inspect and maintain the locos that operate throughout the year.
3. An Electric Locomotive is a locomotive powered by electricity from overhead lines or on-board energy storage such as battery or fuel cell. WAP-4 stands for :- •W = Wide gauge (1.66m) •A = AC Supply(25 KV) •P = Passenger
4. TYPE AND ORIGIN POWER TYPE : ELECTRIC BUILDER : CHITTARANJAN LOCOMOTIVES WORK, W.B., INDIA BUILD DATA : 1990 TILL DATE TOTAL PRODUCED : 698
5.  AAR WHEEL AAR : C-C  UIC CLASSIFICATION : Co-Co  GUAGE : 1.676 mm  BOGIES : Co-Co flexible mark/ cast bogies; primary and secondary wheel springs WHEEL DIAMETER : New = 1,092 mm ( 3 ft 7”) Half worn = 1,055 mm ( 3 ft 5.5 “) Full worn = 1,016 mm ( 3 ft 4”)
6.  LENGTH : 18.794 m  WIDTH : 3.179 m  HEIGHT : 4.323 m  LOCOMOTIVE WEIGHT : 1,12,800 kgs  ELECTRIC SYSTEM : 25 kv / 50 hz AC overhead  CURRENT COLLECTION METHOD : Pantograph  TRACTION MOTORS : Hitachi HST 5250
7.  MAXIMUM SPEED : Service 140 km/hr Test Run 180 km/hr  PERFORMANCE OUTPUT : Maximum- 5350 hp Continuous – 5050 hp  LOCOMOTIVES BRAKES : Air/ Hand brakes  TRAIN BRAKES : Air
8. 1. E-3 SECTION 2. E-4 SECTION 3. E-5 SECTION
9. E-3 SECTION This section is responsible for the inspection and the overhauling of the traction motors that drives the locomotives
10. LET US SEE WHAT ARE TRACTION MOTORS...
11.  It is one of the most important equipment of electric motor.  A 6 pole DC series wound motor with commutating poles  They are used for the propulsion of the vehicles.  Locomotives have 6 axis. Each axis carry a single traction motor which is connected to wheel by direct spur gear meshing , these motor drive locomotives by taking current from the overhead lines through PANTOGRAPH.  Ventilation system for these motors are forced and air is supplied from separate motor blower to cool these traction motors.
12. RATINGS CONTINUOUS ONE HOUR MAX VALUE VOLTAGE 750 V 750 V 900 V CURRENT 900 A 960A 1300 A SPEED (RPM) 895 RPM 877 RPM 2150 RPM POWER 630 KW 670 KW ____
13.  Motor is mounted in the bogie frame supported partially by the axle which it drive and partially by the bogie frame.  The motor case is provided with a "nose" which is rested on a bracket fixed to the frame of the bogie.
14. WHEEL:  Wheels are manufactured of cast steel.  Railway wheels sit on the rails without guidance.  The flanges should not touch the rails.  The wheel tire is coned .  Rail head slightly curved as shown in the diagram.
15. This section is in charge of relays, speedometers, microprocessors, battery chargers etc.
16. SPEEDOMETERSpeedometer combines the technology of the field proven indicators. It gives statistics of the speed of the locomotive along with the ability to store journey data in a flash memory in a single housing . Due to small size it can easily be installed and retrofitted in public transports such as locomotives, tramways, metro trains etc. This unit is very much suitable to work under severe environment conditions typically encountered in real road vehicles where accurate high speed indication is a very crucial factor. Inside SPM, data is recorded in a compact FLASH MEMORY CARD. This compact memory card can store long term data of the last 60 days of halt and run.
17. The purpose of relay in electrical circuit and fluid circuit is to check proper flow of current and circulation of the fluid and also to safeguard the appliance from getting damaged in an event of no flow or improper flow of current or no or improper circulation of fluid in the circuit. In the absence of relay there would have been no protection of the appliance in the concerned circuit. RELAY ELECTRICAL VOLTAGE CURRENT MECHANICAL CIRCULATION SPEED PRESSURE TEMPERATURE Depending upon the nature of controlling device, relays are classified into the following groups:
18. 1.Safety Relay – Used for the safety of the entire system. Examples are QRSI, QLM, QE, QF, etc. 2. Protection/Sequence Relay – Used for the protection of a particular device of the system. Examples are Q-45, Q-46, Q-51, Q-53, Q-54, Q-100, QSIT, QFL, Q-50, QCON, etc. 3. Time Lag Relay – Used to delay the tripping of the locomotive under certain circumstances. For example QTD 105, QTD 106. 4. Signalling Relay – Used to indicate the proper functioning of particular devices in the locomotive. For example QV60, QV61, QV62, QV63, etc.
19. 1.RELAYS USED IN LOCOS 2.RELAY TEST BENCH IN LOCO SHED 3. RELAY TEST UNIT IN THE LOCO SHED
20. MICROPROCESSORS.... BUT WAIT! YOU PEOPLE MUST BE THINKING WHAT IS THE USE OF MICROPROCESSOR IN AN ELECTRIC LOCO? LET US HAVE A LOOK AT IT...
21. ANOTHER MAJOR OBJECTIVE IS TO REPLACE SOME EXISTING RELAYS AND IT’S CORRESPONDING INTERLOCKING LOGIC WITH THE SOFTWARE TO REDUCE THE COST AND COMPLEXITY OF THE WIRING AND TO ADD CERTAIN DIAGNOSTIC FEATURE FOR BETTER MAINTAINANCE OF THE LOCO IT ACTS AS THE HEART OF THE SYSTEM THE MAIN OBJECTIVE IS TO PRIMARILY LOCATE THE FAULTS FOR THE LOCO’S CORRECT MAINTAINANCE.