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Voltage drop of distribution feeders

Distribution Sector requires economical system to provide electrical energy at a suitable prize and at a minimum voltage drop to reduce the voltage regulation. So, we require the economical way to provide the electrical energy by State Electricity Boards to various consumers at minimum voltage drop and reduce the regulation of voltage.

Medium Voltage Ring Main Systems In a Nutshell
Voltage drop calculations and design of urban distribution feeders

The invisible energy which constitutes the flow of electrons on a closed circuit to do work is called electricity. Need of electricity is because it is a form of energy which can be converted to any other form very easily. In the past, it was thought that the electricity is a matter which flows through the circuit to do work.

However, now it has been established that electricity constitutes the flow of electrons in a circuit.

In this process, the work is being done. So, every matter in space is electrical because it consists of electrons and protons in it. The manifestation of a form of energy probably due to separation and independent movement of certain parts of atoms called electrons.

Electrical power system consists of various elements:

  • Generating Stations
  • Substations
  • Transmission Systems
  • Distribution Systems
  • Load Points
Rough sketch of single line diagram
Rough sketch of single line diagram

Role of Transmission Lines

Generators, transmission and distribution system of electrical power is called as power supply system. The transmission takes power from generating stations to transmission substations through the transmission lines which are to deliver bulk power from generating stations to load centres, beyond the economical service range of regular primary distribution lines.

The transmission lines can be classified into Primary and Secondary lines.

Primary transmission voltages are 110kV, 132kV, 220kV, 400kV and 765kV etc. depending upon the distance and amount of power to be transmitted, reliability. The secondary transmission voltage levels are 33kV or 66kV. HVDC system is up to ±600kV.

Title:Voltage drop calculations and design of urban distribution feeders  – Ritula Thakur, Puneet Chawla
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Voltage drop calculations and design of urban distribution feeders – Ritula Thakur, Puneet Chawla
Voltage drop calculations and design of urban distribution feeders – Ritula Thakur, Puneet Chawla

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One Comment


  1. Abu
    Feb 12, 2021

    This is good for in working with electrical engineering field bc when we on a job every day we lost the basic theoretical background

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