Is it possible to get earth resistance value"zero" Ohm
practically???
If yes,which type of earthing???

Answer Posted / chellappan s

It is thoritical and cannot be achieved. Acceptable value is 1 ohms for medium voltages by practice.
Still lower value may be archived by several methods where sentive equipments are to be earthed. It will be costlier.

Is This Answer Correct ?    0 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How to Decide(calculate) Bush bar size for copper and aluminiam ?

1691


Define corner frequency?

767


what work will do diffrential realay DG set

2332


What is the maximum percentage voltage drop (vd%)for a motor control center

1551


1)how to reduce the value of tan delta of trasformer and CB,bushing,CT&PT,CVT ? 2)how to reduce the resistance of CB contact and its operating time? 3)plz.....send me the project report on conditioning and monitoring of substation equipment on my email id (gusaiyogendra03@gmail.com)

1811






What is the BS(British Standard)code for 11kv motor

4263


Is there possible to Test Transformer for Overfluxing Capability. Or is there any firm who does Overfluxing Test on Transformer?

2641


How do I calculate/select Droop CT ratio for various capacity of generators?

3065


Batteries used for electrical energy storage are a. Laclanche cells b. Edison cells c. Lead acid cells d.any of the above

1346


how to calculate the battery AH

2249


What is transient Phenomenon?

1781


why swinburnes test cannot be performed on series machines?explain

1838


What range of speed can you get with the field control method of speed control of d.c. Shunt motor?

666


what is interfacing in computer studies?

1253


what is motor capacity of 80TR chiller? and also say what is the formula related temperature, motor capacity, TR?

1834