COURSE TITLE
COURSE CODE
COURSE CATEGORY
PERIODS/WEEK
PERIODS/SEMESTER
CREDITS
: ELECTIC TRACTION
:
5037
:
E
:
4
:
72
:
4
RATIONALE
The students will be able to:
1. Identify and explain use of components of the power supply arrangements for electric
traction.
2. Maintain different overhead equipments.
3. Differentiate the various types of current collecting systems and current collecting gears
based on utility.
4. Explain the different types of signals and track circuits.
5. Explain supervisory control used in electric traction.
6. Explain special requirements of train lighting and various systems of train lighting.
TIME SCHEDULE
Module
I
II
III
IV
Topic
Power Supply Arrangements:
Test I
Overhead Equipments
Test II
Current Collecting Equipments
Test III
Signaling and Supervisory Control
Test IV
TOTAL
OBJECTIVES
Periods
17
1
17
1
17
1
17
1
72
MODULE I
1.1.0 Power Supply Arrangements:
1.1.1 Introduction of Power Supply Arrangements
1.1.2 Explain briefly the High Voltage Supply and Constituents of Supply System.
1.1.3 Study the substation details in traction system
1.1.4 Understand the Feeding Posts. Feeding and Sectioning Arrangements, Sectioning and
Paralleling Post, Sub sectioning and paralleling Post.
1.1.5 Discuss Elementary Section
1.1.6 Explain the various Miscellaneous Equipments at Control Post
1.1.7 Understand the purpose of Switching Stations
1.1.8 Explain the major Equipments at Substation- Transformer, Circuit Breaker, and
Interrupter. Protective System for AC Traction
1.1.9 Familiarize with the Transformer, Protection and 25 KV Catenary Protection.
1.1.10 Understand the Location and Spacing of Substations.
MODULE II
Overhead Equipments:
2.1.1 List various Overhead Equipments (OHE)
2.1.2 Design Overhead Equipments (OHE )
2.1.3 Discuss Composition of OHE, Height of Contact Wire, Contact Wire Gradient,
Encumbrances, Span Length, Automatic Weight Tension and Temp.Compensation,
Uninsulated Overlaps, Insulated Overlaps, Neutral Section, Section Insulator and
Isolator
2.2.1 Explain Polygonal OHE with Single Catenary Construction, Compound Catenary
Construction, Stitched Catenary Construction, Modified Y Compound Centenary
2.2.2 Discuss the Effect of Speed on OHE
2.3.1 Explain the OHE Supporting Structure
2.3.2 Familiarize with different types of signal boards of OHE
2.4.1 Describe the Maintenance of OHE and OHE Maintenance Schedule. (No Derivation and
No Numerical)
MODULE III
3.1.0 Current Collecting Equipments:
3.1.1 Explain the Systems of Supplying Power in Electric Traction
3.1.2 Familiarize with Third Rail or Conductor Rail System
3.1.2 Understand the Overhead System and Current Collectors for Overhead System with
Trolley Collector or Pole Collector, Bow Collector, Pantograph Collector
3.1.3 State different Types of Pantographs with Diamond Pantograph and Faiveley Type
3.1.4 Describe the Construction of Faiveley Type Pantograph
3.1.5 Discuss the Methods of Rising and Lowering of Pantograph
3.1.6 Explain the Maintenance of Pantograph
MODULE IV
4.1.0 Signaling and Supervisory Control
4.1.1 Discuss the Requirements of Signaling System
4.1.2 State different Types of Signals.
4.1.3 Explain Colour Light Signals, Three and Four Aspects of Colour Light Signals
4.1.4 Discus the Track Circuits, DC Track Circuit, AC Track Circuit
4.1.5 Undestand with Supervisory Control and Advantages of Remote Control,system of
remote Control, Frequency (VF) Signaling.
4.2.0 Discuss Remote Control System with Equipment and Network and mimic diagram
4.3.0 Understand with Control Desk for TPC, Remote Control Switching
equipments, The F.M.V.F.T, Power Supply, Controlled Station Equipments
4.4.0 Understand Systems of Train Lighting
4.4.1 Discuss Special Requirements of Train Lighting
4.4.2 Explain the Method of obtaining Unidirectional Polarity
4.4.3 Discuss the method of obtaining Constant Output, Single Battery System , Double
Battery and Parallel Block System
4.4.4 Describe the Failure of under frame Generating Equipments and End on Generation
4.4.5 Explain the Railway Coach Air Conditioning and its requirements
4.4.6 Discuss various Types of Installations, Air Conditioned Rolling Stock and Air
Conditioning Equipments on Coaches.
COURSE CONTENT
MODULE I
Power Supply Arrangements:
Introduction, High Voltage Supply, Constituents of Supply System, Substations, Feeding Posts.
Feeding and Sectioning Arrangements, Sectioning and Paralleling Post, Sub sectioning and
Paralleling Post, Sub sectioning Post, Elementary Section, Miscellaneous Equipments at Control
Post, Switching Stations, Major Equipments at Substation, Transformer, Circuit Breaker,
Interrupter. Protective System for AC Traction – Transformer, Protection and 25 KV Catenary
Protections
Location and Spacing of Substations.
MODULE II
Overhead Equipments:
Overhead Equipments (OHE), Design of OHE, Composition of OHE, Height of Contact Wire,
Contact Wire Gradient, Encumbrances, Span Length, Automatic Weight Tension and Temp.
Compensation, Uninsulated Overlaps, Insulated Overlaps, Neutral Section, Section Insulator,
Isolator, Polygonal OHE: Single Catenary Construction, Compound Catenary Construction,
Stitched Catenary Construction, Modified Y Compound Centenary, Effect of Speed on OHE,
OHE Supporting Structure, Different types of signal boards of OHE, Maintenance of OHE:OHE Maintenance Schedule.(No Derivation and No Numerical)
MODULE III
CurrentCollectingEquipments:
Introduction, Systems of Supplying Power in Electric Traction, Third Rail or Conductor Rail
System, Overhead System, Current Collectors for Overhead System: Trolley Collector or Pole
Collector, Bow Collector, Pantograph Collector, Types of Pantographs: Diamond Pantograph
and Faiveley Type, Construction of Faiveley Type Pantograph, Methods of Raising and
Lowering of Pantograph, Maintenance of Pantograph.
MODULE IV
Signaling and Supervisory Control:
Requirements of Signaling System, Types of Signals, Colour Light Signals, Three and Four
Aspects of Colour Light Signals, Track Circuits, DC Track Circuit, AC Track Circuit.
Supervisory Control: Introduction, Advantages of Remote Control, Systems of Remote Control:
DC versus Voice
Frequency (VF) Signaling. Remote Control System, Equipment and Network, Mimic Diagram,
Control Desk for TPC, Remote Control Switching Equipments, The F.M.V.F.T, Power Supply,
Controlled Station Equipments, Systems of Train Lighting, Special Requirements of Train
Lighting, Method of obtaining Unidirectional Polarity, Method of obtaining Constant Output,
Single Battery System, Double Battery Parallel Block System, Failure of Under frame
Generating Equipments, End on Generation, Railway Coach Air Conditioning: Requirements,
Types of Installations, Air Conditioned Rolling Stock, Air Conditioning Equipments on Coaches.
REFERANCE
1. Modern electric traction H.Partab Dhanapath Rai & sons
2. Electric traction
J Upadhyay & S N Mahendra Allied publishers ltd