Transmission and Distribution of Electrical Power (Diploma)

Overhead lines, line parameters, insulators, cables, substations and distribution systems.

6 MonthsDuration 6Chapters27Topics

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Syllabus · पाठ्यक्रम

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01Introduction to Transmission and Distribution 4 topics

Single-line diagram of a power system
Standard voltages in India
Advantages of high-voltage transmission
AC and HVDC transmission

02Overhead Line Components 5 topics

Conductor materials and ACSR
Line supports: poles and towers
Cross arms, stays and earth wire
Sag and its calculation
Spacing and clearances

03Line Parameters and Performance 5 topics

Resistance, inductance and capacitance of lines
Short, medium and long lines
Efficiency and regulation of short lines
Ferranti effect
Corona

04Insulators 4 topics

Insulator materials
Pin, suspension, strain and shackle insulators
Potential distribution and string efficiency
Methods to improve string efficiency

05Underground Cables 4 topics

Construction of cables
Types: PVC, XLPE and oil-filled
Laying of cables
Cable faults and Murray loop test

06Substations and Distribution Systems 5 topics

Types of substations
Substation equipment: CB, isolator, LA, CT, PT
Radial, ring main and interconnected systems
Feeders, distributors and service mains
Switching sequence and safety

About

You will be able to

Explain the structure of power systems, standard voltages and the advantage of high-voltage transmission
Select line conductors and supports and calculate sag
Calculate efficiency and regulation of short lines and explain Ferranti effect and corona
Select insulators and calculate string efficiency
Explain construction, laying and fault location of underground cables
Explain substations, their equipment and distribution systems

Who it is for

Diploma Electrical Engineering students of Semester 4 (BTEUP)
Students aiming for jobs with power distribution companies (DISCOMs)
Students preparing for JE (Electrical) exams

What you need

Electrical circuits and basic power generation of Semester 3

Questions

Are sag and line efficiency numericals included?

Yes. Sag, short-line efficiency, string efficiency and number of discs problems are solved.

Is substation practice covered?

Yes. Equipment, layout and the safe switching sequence are explained.

Is this course based on the BTEUP syllabus?

Yes. The units follow the BTEUP (Board of Technical Education, Uttar Pradesh) diploma syllabus. If your polytechnic follows a different board or a revised scheme, the centre teaches your own syllabus.