how to check the earth resistance value& what is the
minimum earth resistance for good earthing sysytem.

Answers were Sorted based on User's Feedback



how to check the earth resistance value& what is the minimum earth resistance for good earthin..

Answer / sarav

We used Earth Megger for measuring the earth value.The
value of the earthing is vary depends upon the place.
In residential towers we should maintain the earth value is
below 2 ohm.

Is This Answer Correct ?    19 Yes 3 No

how to check the earth resistance value& what is the minimum earth resistance for good earthin..

Answer / k. naresh reddy

We used Earth Megger for measuring the earth value.The
value of the earthing is vary depends upon the place. we
should maintain the earth value is
below 1ohm.(0.1 ohm is good earth resistance value)

Is This Answer Correct ?    16 Yes 5 No

how to check the earth resistance value& what is the minimum earth resistance for good earthin..

Answer / rahul patil

EARTH RESISTANCE FOR GOOD EARTHING IS LESS THAN 5 OHM & GRID
RESISTANCE IS LESS THAN 1 OHM

Is This Answer Correct ?    12 Yes 1 No

how to check the earth resistance value& what is the minimum earth resistance for good earthin..

Answer / kobina k. mensah

The earth resistance is checked using a earth resistance
tester and how good an earth depends on the type and number
spicks, voltage, soil and other facts.

Is This Answer Correct ?    14 Yes 6 No

how to check the earth resistance value& what is the minimum earth resistance for good earthin..

Answer / mizan

below 1 ohm

Is This Answer Correct ?    13 Yes 7 No

how to check the earth resistance value& what is the minimum earth resistance for good earthin..

Answer / dipeandra deepak

normly earth res.value for an industrial area is 1 to 5
res.for rock sail area and residential area, this value is
8 and 1-3 res respectively.further ithink this depends upon
ur mant. capability. this can be maintened by checking
earthing pit time to time. it also depends the size of
earthing patti and the load capicity set against it.

Is This Answer Correct ?    3 Yes 1 No

how to check the earth resistance value& what is the minimum earth resistance for good earthin..

Answer / kallesh

By using Earth Megger to check the earth resistance and
Minimum earth resistances for good earthing is 0 ohm to 5 ohm.

Is This Answer Correct ?    3 Yes 1 No

how to check the earth resistance value& what is the minimum earth resistance for good earthin..

Answer / anil

Now a days all telecommunication installations insist for value <0.5 ohms.
However domestic installation is ok upto 2 ohms.
The easiest way to measure the value of domestic earth is using a multimeter measure voltage across n-e it must be less than 5 ohms.

Is This Answer Correct ?    2 Yes 0 No

how to check the earth resistance value& what is the minimum earth resistance for good earthin..

Answer / ashwin trikha

please give me the earth system

Is This Answer Correct ?    2 Yes 1 No

how to check the earth resistance value& what is the minimum earth resistance for good earthin..

Answer / bhushan

value depends upon the soil resistivity but in reality it
should be zero to get better result. As per recommendation
by NFPA and IEEE it should be less then 5 ohms.

Is This Answer Correct ?    1 Yes 0 No

Post New Answer

More Electrical Engineering Interview Questions

What is potientometer.How it is useful in a sychronoscope.

1 Answers  


What meant by lagging and leading? When if they are occurred what preventive methods should be taken?

14 Answers   ABB, L&T,


how we arrange the hv side with delta connection in case 33/11kv of transformer.

0 Answers   Jindal,


why PD testing for power cables

1 Answers   Bhushan Power Steel, CSE, Datre Corporation,


why the air gap is necessary in the transformer core

1 Answers   Eskom,






What should be the earth pit resistance value?

7 Answers   BARC,


A resistor,inductor and capacitor are connected in series respectively.Voltage across resistor is 40v,across inductor is 70v,across capacitor is 100v.Then what is the total voltage applied across the elements?

5 Answers  


Why secondary of a CT in a power system acts as an open circuit after core saturation?

2 Answers  


Explain about 3 phase motor fault current calculation with examples?

0 Answers   QTC,


how to find the resistance

3 Answers   Saint Gobain,


When i went to a interview the interviewer ask me a question for that i cant able to answer him if anyone knows answer me How will you design a capacitor bank for a plant? if my p.f is 0.6 i have to improve it to 0.9 or 1 what kind of steps i have to do? and is there any formula for calculating this?

2 Answers  


why do we put a transformer on soak before loading it

0 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16632)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)