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 are the rating wise protections required for Generators from 600KVA to 2000KVA

3 Answers  


How many points can we have in AC Circuit? Show by giving suitable example?

3 Answers  


How do you find HT and LT sides of a distribution transformer only by looking at it from outside?

1 Answers   Nespak,


for preparation of design note of 11 / 220 kV , 3 phase, 63 MVA transformer how can calculate or consider the iron losses and copper losses

1 Answers  


how we can calcultae the short circuit level for bus bar

0 Answers   Jaiprakash, Panorama Apparels,






how much earth resistance consider to commissioning the transformer?

3 Answers   Deccan Cements,


what will be the minimum megger value for 132 Kv (earthed) potential transformer

3 Answers  


Brief use of isolation transformer & how it works.

1 Answers  


what are different types of alternator and discuss about the methods of cooling

16 Answers   Bhel, Jindal, L&T, Nalco, Vedanta,


1.generator rated as 1000 mva,11kv .8 pf what will 0.8 pf will indicate? 1.max pf it can supply 2.min pf it can supply like this 4 options there what is answer.explain

5 Answers   Power Grid,


what is the use of commutator in dc motor if we supply ac ? commutator is used to convert ac to dc.and it is used to arrange the flux in unidirectional in case of dc supply. if we give ac as supply to dc motor what is the use of commutator?

0 Answers  


For 415v,3phase,22kw rating of motor how to calculate MCCB rating

2 Answers   Zigma Technologies,


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4452)
  • Electrical Engineering Interview Questions Electrical Engineering (16638)
  • 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)