• Home
  • Courses
  • Machines
    • Transformer
    • AC Motors
      • Induction Motor
      • Synchronous Motor
    • DC Motor
    • DC Generator
  • Power System
    • Circuit Breaker
    • Switchgear
    • Substation
    • Control System
    • Measurement
  • Electronics
  • Blog
  • Contact
    • Contact Us
    • Privacy Policy
Have any question?
[email protected]
RegisterLogin
StudyElectrical.Com
  • Home
  • Courses
  • Machines
    • Transformer
    • AC Motors
      • Induction Motor
      • Synchronous Motor
    • DC Motor
    • DC Generator
  • Power System
    • Circuit Breaker
    • Switchgear
    • Substation
    • Control System
    • Measurement
  • Electronics
  • Blog
  • Contact
    • Contact Us
    • Privacy Policy

Power System

Why Neutral Grounding or Neutral Earthing is Essential?

  • Categories Power System
GFCI Wiring

In the power system, grounding or earthing means connecting the frame of electrical equipment (non-current carrying part) or some electrical part of the system (e.g. neutral point in a star-connected system, one conductor of the secondary of a transformer, etc.) to earth i.e. soil.

1

This connection to earth may be through a conductor or some other circuit element (e.g. a resistor, a circuit breaker, etc.) depending upon the situation.

Advantages of Earthing

Grounding or earthing offers two principal advantages.

First, it provides protection to the power system.

For example, if the neutral point of a star-connected system is grounded through a circuit breaker and phase to earth fault occurs on any one line, a large fault current will flow through the circuit breaker. The circuit breaker will open to isolate the faulty line. This protects the power system from the harmful effects of the fault.

Secondly, earthing of electrical equipment (e.g. domestic appliances, hand-held tools, industrial motors, etc.) ensures the safety of the persons handling the equipment.

For example, if insulation fails, there will be a direct contact of the live conductor with the metallic part (i.e.frame) of the equipment.

Any person in contact with the metallic part of this equipment will be subjected to a dangerous electrical shock which can be fatal.

Related Articles

  • Neutral Grounding (Earthing) and Equipment Grounding
    Neutral Grounding (Earthing) and Equipment Grounding

    The term Grounding or Earthing refers to the connecting of a conductor to earth. The neutral…

  • Substation Earth Mat earth grid
    Substation Earthing System ( Grounding System ) - Earthing Mat

    The substation earthing system comprises of a grid (earth mat) formed by a horizontal buried conductors. …

  • why we need power system protection
    Why we need Power System Protection?

    In this article, you will learn the importance of protection in the modern power system…

  • bird on power line no electrocution
    Why Birds don't get Electrocuted on Touching Power Lines?

    You may be amazed at why the birds don't get shocked when they sit on…

  • Voltage 2Bconrol 2Bin 2Bpowr 2Bsystem
    Why Voltage Control is Important?

      In a modern power system, electrical energy from the generating station is delivered to…

  • substation earthing
    Substation Earthing System Design

    We have already given an introduction to substation earthing system in an article published earlier.…

  • Share:
author avatar
Electrical Engineer

Previous post

Construction of Universal Motors
December 20, 2014

Next post

Objective Questions on Single Phase Motors | Part 4
December 24, 2014

You may also like

percentage_reactance transformer
Percentage Reactance in Power System (Transformer, Generator or Reactor)
16 January, 2023
Load Curve and Load Duration Curve
Load Duration Curve in Power Station
29 September, 2022
Double end break disconnect switch
Disconnect Switches (Isolator) in Substation: Types, Design and Working
1 September, 2022

    1 Comment

  1. K.K.MURTY
    August 1, 2019
    Reply

    Sir .,I feel you Must distinguish between grounding & Earthing.
    Grounding:Grounding is of neutral of star point of any star connected transformer or a generator.They felicitate path to Zero seq current to (earth fault current)return to the source.
    further this word is used for connecting(burring) the Lower end of the winding of Single phasepotential transformers or CVTs in the EHV system to have a potential difference from High voltage Phase Conductor to earth.
    Earthing: Earthing in an EHV sub station means connecting/bonding the Metallic body of all outdoor equipment to earth mat or earthing system to avoid damage to the equipment due to Ground potential rise during earth fault conditions.

Leave A Reply Cancel reply

Your email address will not be published. Required fields are marked *

Search Here

From Blog

Substation Relay
Basics of Protective Relaying in Power System
16Jul2016
Moving Iron Instruments Banner
Moving Iron Instruments – Attraction and Repulsion Type
24Nov2019
Shackle-Insulator-Spool-Insulator
Shackle insulator (Spool Insulator)
27Aug2021
Gas insulated switchgear parts
Introduction to Gas Insulated Substations / Switchgears (GIS)
05Dec2017

Categories

  • Alternator
  • Arduino
  • Basic Electrical
  • Battery
  • Books
  • Cables
  • Capacitor
  • Career
  • Circuit Breaker
  • Control System
  • DC Generator
  • DC Motor
  • Drives
  • Electric Vehicles
  • Electrical Circuits
  • Electrical Machines
  • Electrical Relays
  • Electrical Safety
  • Electronics
  • Embedded System
  • Exams
  • Generation
  • Guest Post
  • HVDC
  • Instrumentation
  • Interview Questions
  • Locomotives
  • Measurement
  • Microcontroller
  • Objective Questions
  • PCB
  • PLC
  • Power System
  • Problems and Solution
  • Projects
  • Resistor
  • Signals and Systems
  • Single Phase Motors
  • Substation
  • Switchgear
  • Synchronous Motor
  • Three Phase Induction Motor
  • Transformer
  • Transmission Line
  • Uncategorized

Copyright © 2021 Study Electrical, Inc.

© StudyElectrical.Com 2021

Login with your site account

Lost your password?

Not a member yet? Register now

Register a new account

Are you a member? Login now