how many types of grounding?

Answer Posted / baha al

There are three type of earthing:

1- TN-C-S earth and neutral combined in the supply network
but separated in customer installation.
2- TN-S earth and neutral run back separately to the
transformer neutral terminal.
3- TN-C earth and neutral are combined right throughout the
installation

Is This Answer Correct ?    3 Yes 7 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

if in 3-phase system voltage=440V,frequency=60Hz, current=400A. then if it is single phase then current=? and if it is single phasing then current=?

2127


what is positive , negative & zero equivalent system resistance

1429


What is effect on in zone and out zone fault if CT chosen for phase side is Vk/2<5mA and Neutral side is Vk/2<15mA on REF protection of Transformer

1901


how to calculate cable size in diffrent loads?

1638


What is step signal?

637






How to do maintenance of transformer feeder.

1349


how can i use REF and diffrencial relay both in 1 CT core for transformer protection?

1372


how to copy from plc ge fanuc versamax series,all input and output, adress, and printout.

2048


write a c++ code that receives an integer number and display the sum of the number and its revers integer?

1578


What are :- AC Distribution Board (Single & Double Front) DC Distribution Boards Distribution Board LT Breaker Panel.

1624


How to size fuse? How to size MCB?

1056


A 11KV, 1200 A breaker combination fixed in a cubicle for HT motor.Is normally for 11 KV motor fuse is using? if Yes, What range fuse is required?

1521


how many load we can take for lighting

1754


Sir, I have applied for the of Jr.engineer(Electrical & Electronics) & ASST. LOCO PILOT at ALL RRB BOARDS. please send me all RRB Boards solved papers in the year of 2001 tO till date. i requested send me the papers to my id as soon as possible (jet_0991@yahoo.com). (This is very urgent) Thank You,

1404


Why does the radius of armature is less than the radius of pole shoe?

1692