## Power System 2 by Mr. C. Bhanu Prasad M. Tech, (Ph. D) Power System II discusses the transmission lines and their properties, modelling and performance characteristics. This course details topics associated with the transmission lines like insulation materials, cables, transients in transmission lines, corona Code : PS2JHEEE31 Recommended For : JNTU B. Tech EEE 3rd Year 1st Semester

#### After Learning this subject,you should be able to

• After going through this course the student gets a thorough knowledge on calculation of transmission line parameters, performance analysis of short medium long length transmission lines and factors affecting the performance analysis of transmission lines, transients in power systems, operation of different types of overhead line insulators, sag and tension calculation of transmission lines and detailed analysis of underground cables for power transmission and distribution,with which he/she can able to apply the above conceptual things to real-world electrical and electronics problems and applications.

## Curriculum 13:11:23   units   |   8

• 1:57:16

UNIT 1.1
Transmission Line Parameters: Introduction, Parameters of transmission lines, Types of conductors- part 1, Types of conductors- part 2, Types of conductors- part 3, Types of conductors- part 4, Inductance of single phase Two line, inductance Symmetrical and asymetrical configration, inductance Symmetrical and asymetrical configration Summary, Concept & calucation GMR & GMD, problem1 on inductance calculation & asymmetrical configuration, problem2 on inductance & asymmetrical configuration-part 1, problem2 on inductance & asymmetrical configuration-part 2, Symmetrical and asymmetrical conductor configuration, Capacitance of single phase two wire line, Capacitance of 3 phase two line with transposed, effect of earth on capacitance of single phase conductor

• 0:35:49

UNIT 1.2
Transmission Line Parameters Problems: Calculation of L & C charging, problem based on GMD & GMR, problem based on effect of earth on capatance, problem on charging current calculation

• 2:13:15

UNIT 2.1
Performance of Short,Medium& Long length transmission lines: Classification of Transmission Lines, Regulation and efficiency of transmission lines, short transmission lines ( STL ), STL - phasor Diagram & Regulation calculation, STL-modelling using ABCD parameters,regulation, STL-modelling using ABCD parameters Efficiency calculation, Medium transmission line representation(MTL), Medium transmission line- part 1, Medium transmission line- part 2, MTL Nominal ? representation using ABCD parameter, MTL Nominal ? simple way of representation using ABCD, MTL Nominal simple way of representation, MTL representation-End condenser method and different methods, Long transmission line-rigorous solution- introduction, Rigorous Solution, Equivalent T & equivalent ? - part 1, Equivalent T & equivalent ? - part 2, Problem on ABCD parameters of MTL - part 1, Problem on ABCD parameters of MTL - part 2

• 1:25:40

UNIT 2.2
Long transmission lines problems: Problem on nominal T of MTL - part 1, Problem on nominal T of MTL - part 2, Calculation of regulation using ABCD parameters of MTL, Calculation of regulation & efficiency of MTL - part 1, Calculation of regulation & efficiency of MTL - part 2, Calculation of regulation of MTL - part 1, Calculation of regulation of MTL - part 2, problem on long TL- part 1, problem on long TL- part 2, problem on long TL- part 3, problem on long transmission lines ABCD parameters - part 2, Long Transmission line equivalent-T,? networks problem 1

• 2:24:26

UNIT 3.1
Power Sytem Transients & Factors governing the performance of Transmission Lines: Introduction of transients, introuction to travelling waves, Velocity of propagating wave, Termination of line with - open circuited line end-part 1, Termination of line with different types of conditions- open circuited line end- part 2, Termination of line with different types of conditions-part 1, Termination of line with - short circuited end- part 2, Line terminated with resistor- part 1, Line terminated with resistor- part 2, Reflection and refraction coefficients, Line terminated with surge impedence, Line terminated with T-junction, Introduction to corona, Critical disruptive voltage, Visual disruptive voltage, Corona loss, Factors effecting corona loss- part 1, Factors effecting corona loss- part 2, Skin effect & proximity effect, Ferenti effect

• 0:43:26

UNIT 3.2
Power Sytem Transients & Factors governing the performance of Transmission Lines problems: problem Line terminated with cable, problem on surge impedence and velocity, problem on Reflected Voltages and currents, problem on line terminated with T junction, Problem on corona - part 1, Problem on corona - part 2, Problem on corona loss

• 1:31:56

UNIT 4
OverHead Line Insulators & Sag,Tension Calculations: Introduction, Strain type of insulator, String efficiency- part 1, String efficiency- part 2, String efficiency- part 3, Methods for improvment, Sag, Sag calcuation for towers at unequal levels, Effect of wind and ice loading on sag calculation, Sag templates and stringing charts, problem on sag calculation for towers at unequal level - part 1, problem on sag calculation for towers at unequal level - part 2

• 1:55:05

UNIT 5
Underground Cables: Construction of cables, Desired characteristics of insulating materials, Insulating materials used in cables, Classification of cables, Classification of cables - separate lead cables, Classification of cables - pressure cables, Insulation resistance of single core cable, Capacitance of single core cable, Dielectric stress in a single core cable, Most economical size of conductor in cables, Grading of cables, Capacitance grading, Inter sheath grading, Capacitance of 3 core cables, Measurement of earth,