presentation on north western railway ajmer (rajasthan)

7/31/2019 Presentation on North Western Railway Ajmer (Rajasthan)

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Presentation on North Western Railway Workshop

Ajmer(RAJASTHAN)

This presentation dedicated to Dy

chief electrical engineer (Mr.

manish goyal ) and Mr. satyaveer

yadav ADME north western railway

workshop ajmer (rajasthan).

My sir Mr. radheshyam

sharma (section engineer

R.AC. Deptt) Mr upendrasharma (section engineer).

Its also dedicated my

respected senior Mr. sumit

selwal. And prajapat sir

(jen) .

Mr. ashok (senior technician

electrical deptt).


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Mr. VINESH AGARWAL (HOD. EE. ITM

COLLEGE BHILWARA)

SEMINAR COORDINATOR

Mrs. Aparna chaturvedi ( astt

professor)

Mrs. alka agarwal ( astt professor)

Mr . Shankar godwal ( astt professor

nirma university)


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also thanks


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A

SEMINAR ON

NORTH WESTERN

RAILWAY WORKSHOP, AJMER

Presented by :

Hariom sharma

ITM COLLEGE BHILWARA


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North western railway workshop

Ajmer

1 diesel loco and wagon workshop

2 carriage workshop

3 electrical workshop


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RAILWAY WORKSHOP ELECTRICAL

DEPARTMENT

Introduction(ELECTRICAL DEPT.)

Railway power house

Diesel Power Station

Train lighting

Refrigeration and air conditioning


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INTRODUCTIONElectrical Department plays a vital role in the Railway System.

. It is responsible for operation and maintenance of lighting

and ventilation in AC and Non-AC coaches in railways workshop

ajmer.

The Electrical Department has been divided into two wings:

-Electrical Services department

-Railway power house

-Diesel power station- Train Lighting & Air-Conditioning (TL&AC).


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Railway power house

CONTENTS

Equipment Used In Railway Power House Substations

1 Power Transformer

2 Distribution transformer3 Instrument Transformer

4 Potential Transformer

5 Current Transformer

6 Circuit Breaker7 Lightning Arresters


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SEQUENCE OF YARD COMPONENTS


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33/11 kv open switch yard of Railway

Power House


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Lightning Arresters:-

A surge arrester or

lightning arrester is a

device connected

between line and earth. To discharge lightning

over voltages and

switching over voltages

to earth


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Types of lightning arresterRod gap LA

Valve type LAHorn type LA

Expulsion type LA

Multi gap LA


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Wave trap

To prevent high

frequency signals from

entering other zones.


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isolators

Disconnection underno-load condition for

safety, isolation and

maintenance.


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Transformer

Transformer is a static device which

transfers electrical energy from one

electric circuit to another electric

circuit at constant frequency.


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TYPES OF TRANSFORMER

According to Construction:a.Core type Transformer.

b.Shell Type Transformer.

According to the system of windings used in the Transformer.

a.Single phase T/R.

b.Three phase T/R

According to system of cooling to the Transformer.

a.ONAN (Oil Natural Air Natural)

b.OFAN (Oil Force Air Natural)

c.ONAF (Oil Natural Air Force)

d.OFAF (Oil Force Air Force)

According to use

a.Power Transformers

i.Above 500 to 15000 K.V.A.b.Distribution Transformers

i.From 5 to 500 K.V.A.

c.Instrument Transformers

i.Used with the measuring instruments

d.Auto Transformers

Used for low voltage circuits.


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Power transformer


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CURRENT TRANSFORMER

POENTIAL TRANSFORMER

TYPES OF INSTRUMENT TRANSFORMER


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CURRENT TRANSFORMER

Current transformer is used

for measurement of current

and as a protective device.

It connect line to line in the

sub stations.

sec. turns > primary turns

the ratio is given by

I1/I2 = N2/N1


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POTENTIAL TRANSFORMER

Potential transformer is

used for measurement

of voltage and

protection


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CIRCUIT BREAKERS

A circuit breaker is a

equipment which can

break a ckt

automatically underfault conditions.

TYPES OF CIRCUIT

BREAKER

Air blast ckt breaker

Sf6 ckt breaker

Minimum oil ckt

breaker

Vaccum ckt breaker


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DIESEL POWR STATION :-

Diesel Power station is the most important

part of Railway Power House. We can sayit, an energy power sources for railway,

when R.S.E.B. supply is failure due to any

reason.


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1750 kw D.G. set of railway

power house


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Engine No.B.H.P.Type

No. of cylinderBore

Stroke

1.2007 0213302496

16V9x 10.5 251 B Max. Crank

Shaft

169

10 .5


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TRAIN LIGHTING

On the basis of generation following train lightning system areused :-

(EOG) End On Generation

1) Generating Voltage 415 V

2) Generating Voltage 450V

(MOG) Mid On Generation

(SGS) Self Generating System

1)24 V DC (from Alternator)

2) 110 V DC (Alternator)


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End On Generation

In this type of system electricity is generated by

power car.

This system is used in trains having AC coaches

like Rajdhani express, Shatabdi express etc. Twotype of power cars are used

1) 415 V, 3 Phase AC

2) 750 V, 3 Phase AC


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Mid on generation

This train lightning system is used on

small branch lines, hill area. In this

system power car is used in the middle of

all coaches therefore it is called as MidOn Generator


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Self on generation

In self generating coach electricity is generated in

coach by the generating equipment.

In old T/L system dynamo was used but in

modified system brushless alternator are used


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Refrigeration and airconditioning

Refrigeration

Refrigeration is a

process in which work is

done to moving heatfrom one location to

another.

Air conditioning

Air conditioning is the

removal of heat from

indoor air for thermalcomfort.


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R-134 is compatible with synthetic

oil. It is not much harmful to ozone

layer and safe according to globalwarming.


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Components of Refrigeration cycle

Refrigeration cycle has four basic

components to work:

The evaporator unit

The expansion valve

The compressor

The condenser


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