# EE6402 TRANSMISSION AND DISTRIBUTION | Important Questions | Question bank | Syllabus | Model and Previous Question papers | Download PDF

## EE6402 TRANSMISSION AND DISTRIBUTION

Subject Informations :

University        :  Anna University
Department     :   B.E. ELECTRICAL AND ELECTRONICS ENGINEERING
Semester          :  04 th sem
Year                  :  02 rd year
Regulation       :  R2013
Subject Code   :  EE6402
Subject Name  :  TRANSMISSION AND DISTRIBUTION

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EE6402 TRANSMISSION AND DISTRIBUTION| Important  Questions

EE6402 TRANSMISSION AND DISTRIBUTION – SYLLABUS – R- 2013

OBJECTIVES:

 To develop expressions for the computation of transmission line parameters.
 To obtain the equivalent circuits for the transmission lines based on distance and operating
 voltage for determining voltage regulation and efficiency. Also to improve the voltage profile of the transmission system.
 To analyses the voltage distribution in insulator strings and cables and methods to improve the same.
 To understand the operation of the different distribution schemes.

UNIT I STRUCTURE OF POWER SYSTEM

Structure of electric power system: generation, transmission and distribution; Types of AC and DC
distributors – distributed and concentrated loads – interconnection – EHVAC and HVDC transmission – Introduction to FACTS.

UNIT II TRANSMISSION LINE PARAMETERS

Parameters of single and three phase transmission lines with single and double circuits – Resistance,
inductance and capacitance of solid, stranded and bundled conductors, Symmetrical and
unsymmetrical spacing and transposition – application of self and mutual GMD; skin and proximity
effects – interference with neighboring communication circuits – Typical configurations, conductor types and electrical parameters of EHV lines, corona discharges.

UNIT III MODELLING AND PERFORMANCE OF TRANSMISSION LINES

Classification of lines – short line, medium line and long line – equivalent circuits, phasor diagram,
attenuation constant, phase constant, surge impedance; transmission efficiency and voltage
regulation, real and reactive power flow in lines, Power – circle diagrams, surge impedance loading,
methods of voltage control; Ferranti effect.

UNIT IV INSULATORS AND CABLES

Insulators – Types, voltage distribution in insulator string, improvement of string efficiency, testing of
insulators. Underground cables – Types of cables, Capacitance of Single-core cable, Grading of
cables, Power factor and heating of cables, Capacitance of 3- core belted cable, D.C cables.

UNIT V MECHANICAL DESIGN OF LINES AND GROUNDING

Mechanical design of transmission line – sag and tension calculations for different weather
conditions, Tower spotting, Types of towers, Substation Layout (AIS, GIS), Methods of grounding.

TOTAL : 45 PERIODS

OUTCOMES:

 Ability to understand and analyze power system operation, stability, control and
protection.

TEXT BOOKS:

1. D.P.Kothari , I.J. Nagarath, ‘Power System Engineering’, Tata McGraw-Hill Publishing
Company limited, New Delhi, Second Edition, 2008.
3. S.N. Singh, ‘Electric Power Generation, Transmission and Distribution’, Prentice Hall of India

Pvt. Ltd, New Delhi, Second Edition, 2011.

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