Interested to Buy Any Domain ? << Click Here >> for more details...
Why only plate(copper) Earth pit given for neutral earthing? why not pipe(G.I) Earth pit?
- 1 Answers
- 4917 Views
- I also Faced
- E-Mail Answers
Answer Posted / manohar
The resistivity of Earth is 100 ohm-m compare this with
resistivity of copper which is 1.7 x 10-8 ohm-.m (
0.017ohm-mm2-m) & that of GI is 1 x 10-7 (0.1ohm
-mm/m),definitely neutral earth is more resistive than
copper or GI.eVEN INDIAN STANDARD recognasises this fact.It
mention in the clause 0.3 that the "the earth now rarely
serves as part of the return circuit, but is being used
mainly for fixing the voltage of the system neutrals"
| Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
WHAT IS THE PARTIAL DISCHARGE TEST?
why tertiary winding is used in transformer with diagram?
what is under coal gassification?
How a capacitor discharge weld power supply works? what is the use of a pulse transformer?
What is the basic principle of welding process?
What is the difference between acs 550 & acs 850
i have total 8 dg sets for synchronizing and 2 buscoupler,1 sectoin dg no 1,2,3,and 2 sectoin dg no 4,5,6,and last section dg no 7,8 ....if buscupler no 1 and 2 is off mode ..than dg no 1,2,3,will synchroniz of another dg sets?
how generator avr give to the input?
WHY THE DIMENSION OF TWO SAME RATED MACHINE IS DIFFERENT ?
How to see the inductance in a transmission lines
What does the a,b,c of 95a,95b,95c relays denotes?
what will be the min and max voltage flow from neutral to earth?
what is the IS foe lightning arrester?
typically in power distribution substation. 1- Any idea how would be the graph of capacitor bank consumption verses time through the day . 2- How is the switching ( on and off ) of the capacitor bank, per need?
Single line diagram for dbb (double bus bar)system.
