A Presentation on

from 31-5-2016 to 25-7-2016

                                 

 

SUBMITTED TO: SUBMITTED BY : Mr. Prateek Agarwal PURSHOTTAM SUMAN (Asst. professor of electrical- UID: K11238 -engg. ) Electrical Engineering

CONTANTS• RAILWAY INTRODUCTION • RAILWAY PLATFORM LIGHT SYSTEM LIGHT SENSOR TRAIN SCHEDULER SENSOR

• ELECTRICAL LOCOMOTIVE HISTORY OVERVIEW ELECRICAL SUPPLY PARTS OF ELECTRIC LOCOMOTIVE

• RAILWAY INTRODUCTION

• Jurisdiction Government of India• Industry Rail transport• Founded 16 April 1857 (1857-04-16)• Headquarters Rail Bhavan, NewDelhi,India• Area served India• Key people Suresh prabhu (Ministry of Railways) • Products Rail transport, Cargotransport, Services, more...• Revenue 1634.5 billion Net income 157.8 billion• Owner(s) Republic of India (100%)• Employees 1.307 million• Divisions 17 Railway Zones• Website www.Indianrailways.gov.in

• Railway were first introduced in India in the year 16 April 1853 from Mumbai to thane.

• IR holds over 2,39,281 freight wagons, 62,924 passenger coaches and 9,013 locomotive (43 steam, 5,345 diesel and 4,568electric locomotive).

• 12,617 passenger and 7421 freight trains daily runs.• As of 31 march 2013, 20,884 km (31.9;) of the total 65436km

route length was electrified. • All Electrified sections IR use 25,000 volt AC traction through

overhead catenary delivery.

CAUTION DURING TRAINING• Obtain permission before operating any high voltage equipment.• Maintain an unobstructed access to all electrical panels.• Wiring or other electrical modifications must be referred to the

Electronics Shop or the Building Coordinator.Avoid using extension cords whenever possible. If you must use one, obtain a heavy- duty one that is electrically grounded, with its own fuse, and install it safely. Extension cords should not go under doors, across aisles, be hung from the ceiling, or plugged into other extension cords.

• Always wear globs and shoe .

RAILWAY PLATFORM LIGHT SYSTEM

Required large amount of power . 7-8 kw per day for saving power at the station sensor technique are

used. After it we required only around 4kw power only.

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Two types of sensor are used—

Light sensorTrain scheduler sensor

• Work on sun light

Day time light intensity high so all station lights is off.

Evening to night light intensity is low so all lights is on.

Light sensor

Train scheduler sensor

• Set at starting of platforms.• Both sensors are connected to the two

contractor boxes contractor c1 and c2.• Two sensor uses

Conti…

• 30% light is on When train is not present on the platform.• Remaining 70% of light part is also on when train entered to the platform train sensor is

worked. • The train gone again 70% part of

light is off.

…

• platform power is used for tube light, fans and stalls etc.

• Automatically worked device.• signaling system also

connected.• Installing cost :- 40,000-

50,000rs per platform.

ELECTRIC LOCOMOTIVE• Locomotives in India consist of electric and diesel

locomotives. Locomotives are also called locos or engines.

• An electric locomotive is a locomotive powered by electricity from overhead lines, an on-board energy storage device such as a chemical battery or fuel cell.

• Electricity is used to eliminate smoke and take advantage of the high efficiency of electric motors.

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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

Transformer oil testing

• oil, a type of insulating and cooling oil used in transformers and other electrical equipment, needs to be tested periodically to ensure that it is still fit for purpose. This is because it tends to deteriorate over time.

• To assess the insulating property of dielectric transformer oil, a sample of the transformer oil is taken and its breakdown voltage is measured. The lower the resulting breakdown voltage, the poorer the quality of the transformer oil.

images

Electricity Supply

OHE PANTOGRAPH ROOF-BAR DJ QLM MAIN TRANSFORMER (TFWR) GR TFP

OHE(Over Head equipment)

• A system of conductors / equipments carrying traction power from traction sub station to electric locomotive.

PANTOGRAPH Pantograph is used to connect the loco with OHE line.

• Its use for taking 25 kv AC supply from the OHE.• Two panto connected on roof.• Operating Pressure- 6.5-8.0 kg/cm2 • min. Raising Pressure- 4.5 kg/cm2.• lowering pressure- 3.5 kg/cm2.• Raising, lowering time- 6-10sec, < 10 sec.• min. voltage- 85V.

•

•

ROOF-BAR

•

1 Main circuit breaker 2 Transducers 3 Pantograph 4 Resistor harmonic filter 5 Surge arrestor 6 Roof line

DJ(High Voltage Circuit Breaker)

• Use for close and open of connection b/w OHE and main Transformer.

• C.B operate to pneumatic pressure.• Remotely control by switch which place in

cabin. • operate also when relay open.• Two types of DJ Air Circuit Breaker Vacuum Circuit Breaker

QLM(Over Current Protection Relay)

• Its main transformer over current relay.• Place in relay board Cab no. 2.• Connected b/w DJ and main Transformer.• When current is more then 300Amp then relay

energies and DJ will be open.

GR(Graduator)

• work as a regulator.• Tap changer.

• The output voltage of a transformer varies according to the turns ratio of the primary and the secondary windings of the transformer. It can appreciated that at any point of the primary or the secondary winding the voltage is different from any other point on the same winding because these points are at different ratios with respect to the other winding.

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• Broadly tap-changers can be divided into two categories-namely off-load and on-load.

• Off-load tap-changers cannot be operated while current is flowing in the circuit. Off-load tap-changers are used mainly for non-critical applications where a momentary interruption in the current can be tolerated. Hence, such tap-changers have no use in traction duty.

• In traction only on-load tap-changers (OLTC) are used. They are capable of changing the taps rapidly without interrupting the flow of current.

TFP

• Its primary winding of main transformer.• TFP has 288 turns.• TFP-1,2 are secondary winding of main

transformer.• TFP-1,2 give supply traction motor by traction

power circuit.

Electric-locomotive

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Parts Of Electric Locomotive

• Transformer• Asynchronous Motor• Axle Brush• Battery• Bucholz Relay• Camshaft• Cannon Box• Chopper Control

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• Circuit Breaker• Contactor• Converter• Cooling Fans• Creep Control• DC Link• Dynamic Braking• Grid

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• Ground Relay• GTO Thyristor• IGBT• Inverter• Jerk Limit• Line Breaker• Master Controller• Motor Blowers

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• Notching Relay• No-Volt Relay• Overload Relay• Pantograph• Rectifier• Relay• Resistance Control• SEPEX

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• Shoegear• Synchronous Motor• Tap Changer• Thyristor• Transformer• Transistor• Wheel Spin• Wheel Spin Relay (WSR)

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THANK YOU