Electric Earthing and Shock
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
seminar projects crazy
Active In SP
**

Posts: 604
Joined: Dec 2008
#1
27-01-2009, 09:45 AM


INTRODUCTION
The meaning of the term earthing or grounding is to connect the electrical equipment to the general mass of earth by wire of negligible resistance. This brings the body of the electrical equipment to Zero potential and thus will avoid the shock to the operator. The neutral of the supply system is also solidly earthed to ensure its potential equal to Zero according to Indian Electricity Eale,[?The earthed or connected with earth means connected with the general mass of the earth in such manner as to sure at all times in immediate discharge of energy without danger?.]


DIFFERENCE BETWEEN Neutral AND EARTH WIRE
1) The neutral wire is connected to the neutral point of the transformer, which is earthed only at Sub Station. The earth wire originated from a solid earth at the Sub-Station and is earthed at not less than four equally spaced points during every 1.6 km run of distribution line.
2) By reference to three phase four wire loads for which student may consult any book dealing with Polyphase System it will be realized that the neutral wire carries the return current in the case of single phase load and the out of balance current in the case of unbalanced three phase loads. The earth wire under normal condition does not carry any current. However, If an earth fault occurs the earth wire will carry large current, which will cause, the fuse to blow out thereby protecting life and equipment.
3) Some times when the neutral work is not available or ?broken? one is tempted to connect a single-phase load between a phase wire and the earth wire. This practice can be dangerous because by dowing so the earth wire will assume voltage above earth.

Download the full Seminar Report
Downlad
Use Search at http://topicideas.net/search.php wisely To Get Information About Project Topic and Seminar ideas with report/source code along pdf and ppt presenaion
Reply

Important Note..!

If you are not satisfied with above reply ,..Please

ASK HERE

So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page

Quick Reply
Message
Type your reply to this message here.


Image Verification
Please enter the text contained within the image into the text box below it. This process is used to prevent automated spam bots.
Image Verification
(case insensitive)

Possibly Related Threads...
Thread Author Replies Views Last Post
  recent trends in electric traction pdf jaseelati 0 251 15-01-2015, 01:57 PM
Last Post: jaseelati
  ELECTRIC POWERLINE NETWORKING FOR A SMART HOME ppt seminar ideas 5 3,920 24-09-2014, 06:28 PM
Last Post: Guest
  Electric Traction Supply System on Indian Railways project report helper 12 17,326 30-09-2013, 08:05 PM
Last Post: Guest
  Introduction to Electric Power and Energy Systems pdf seminar projects maker 0 619 11-09-2013, 04:57 PM
Last Post: seminar projects maker
  Heat Pumps and Electric Resistance Heating Systems seminar projects maker 0 918 11-09-2013, 03:46 PM
Last Post: seminar projects maker
  Prototype of 5.8 GHz Wireless Power Transmission System for Electric Vehicle pdf study tips 0 497 10-09-2013, 02:39 PM
Last Post: study tips
  ELECTRIC ECOFLOOR REPORT study tips 0 256 01-07-2013, 02:45 PM
Last Post: study tips
  Plug-In Hybrid Electric Vehicle(PHEV) Technology Abstract study tips 0 458 21-06-2013, 03:04 PM
Last Post: study tips
  Prototype of 5.8 GHz Wireless Power Transmission System for Electric Vehicle pdf study tips 0 372 20-06-2013, 04:31 PM
Last Post: study tips
  FULL REPORT ON HYBRID ELECTRIC VEHICLE study tips 0 454 12-06-2013, 04:10 PM
Last Post: study tips