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Anna University · Regulation 2021

EE 3401 Transmission and Distribution question papers

EE3401 Transmission and Distribution previous year question papers from Anna University (Regulation 2021), with the full syllabus. Read online or download the PDF.

Fourth semester · Core · L T P C: 3 0 0 3

Question papers

Syllabus

  1. Unit 1: Transmission Line Parameters9 hours

    Structure of electric power system · Parameters of single and three phase transmission lines with single and double circuits · Resistance, inductance, and capacitance of solid, stranded, and bundled conductors · Typical configuration, conductor types · Symmetrical and unsymmetrical spacing and transposition · application of self and mutual GMD · skin and proximity effects · Effects of earth on the capacitance of the transmission line · interference with neighboring communication circuits

  2. Unit 2: Modelling and Performance of Transmission Lines9 hours

    Performance of Transmission 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 · Ferranti effect · Formation of Corona · Critical Voltages · Effect on line Performance

  3. Unit 3: Sag Calculation and Line Supports9 hours

    Mechanical design of overhead lines · Line Supports · Types of towers · Tension and Sag Calculation for different weather conditions · Methods of grounding · Insulators: Types, voltage distribution in insulator string, improvement of string efficiency, testing of insulators

  4. Unit 4: Underground Cables9 hours

    Underground cables · Types of cables · Construction of single-core and 3-core belted cables · Insulation Resistance · Potential Gradient · Capacitance of single-core and 3-core belted cables · Grading of cables · Power factor and heating of cables · DC cables

  5. Unit 5: Distribution Systems9 hours

    Distribution Systems · General Aspects · Kelvin's Law · AC and DC distributions · Concentrated and Distributed loading · Techniques of Voltage Control and Power factor improvement · Distribution Loss · Types of Substations · Trends in Transmission and Distribution: EHVAC, HVDC and FACTS (Qualitative treatment only)