Do you know how to measure the earth resistance? if so
explain it

Answers were Sorted based on User's Feedback



Do you know how to measure the earth resistance? if so explain it..

Answer / dinesh. r

Actually the Earth resistance is measured using "earth
resistance meter". In previous answers some said that using
megger, but megger is used only for high resistance
measurement i.e., in Megaohms but when considereing upon
earth resistance it should not exceed 1ohm so earth
resistance meter is required.

In this meter there will be four terminals(E, P1, P2, P3)
in which E and P1 will be shorted and connected to the grid
or electrode and P2 and P3 are reference electrodes which
will be kept on the earth surface on two different
locations for taking the reference resistances of the earth.

The meter shows the resistance of the earth. But it is
neccessary that it should be below 1ohm.

Is This Answer Correct ?    477 Yes 29 No

Do you know how to measure the earth resistance? if so explain it..

Answer / shanmu

Earth Resistance is measured by the device'EARTH MAGGER'.

Is This Answer Correct ?    300 Yes 121 No

Do you know how to measure the earth resistance? if so explain it..

Answer / priyadharsini

Earth resistance can be measured using Megger instrument.

Is This Answer Correct ?    335 Yes 180 No

Do you know how to measure the earth resistance? if so explain it..

Answer / ankaraju.k

Earth resistance meter

Is This Answer Correct ?    199 Yes 67 No

Do you know how to measure the earth resistance? if so explain it..

Answer / r.sarkar

Actually the Earth resistance is measured using "earth
resistance meter". In previous answers some said that using
megger, but megger is used only for high resistance
measurement i.e., in Megaohms but when considereing upon
earth resistance it should not exceed 1ohm so earth
resistance meter is required.

In this meter there will be four terminals(E, P1, P2, P3)
in which E and P1 will be shorted and connected to the grid
or electrode and P2 and P3 are reference electrodes which
will be kept on the earth surface on two different
locations for taking the reference resistances of the earth.

The meter shows the resistance of the earth. But it is
neccessary that it should be below 1ohm.

Is This Answer Correct ?    116 Yes 19 No

Do you know how to measure the earth resistance? if so explain it..

Answer / dinesh kumar

1.To measure earth resistance we use Earth Resistance
Meter/Megger.
2.In this Megger there are three terminals
Line,Nuetral&Earth.
3.Line & Nuetral are connected to two terminals and EARTH
Terminal to earth pit to be measured for resistance.

Is This Answer Correct ?    169 Yes 77 No

Do you know how to measure the earth resistance? if so explain it..

Answer / ullas

using two methods:
1.fall of potential method
2.earth tester(device)

factors affecting earth resistance are
1. Shape & material of the earth electrode.
2. Depth of the electrode at which they r burried in soil.
3. Specific resistance of the soil surrounding the electrode

(Specific resistance of the soil varies depending on
moisture content in the soil..... varies from 80*10^3ohm-m
to 80*10^6ohm-m)

Is This Answer Correct ?    74 Yes 19 No

Do you know how to measure the earth resistance? if so explain it..

Answer / k.viswanathan

Actually the Earth resistance is measured using "earth
resistance meter". In previous answers some said that using
megger, but megger is used only for high resistance
measurement i.e., in Megaohms but when considereing upon
earth resistance it should not exceed 1ohm so earth
resistance meter is required.

In this meter there will be four terminals(E, P1, P2, P3)
in which E and P1 will be shorted and connected to the grid
or electrode and P2 and P3 are reference electrodes which
will be kept on the earth surface on two different
locations for taking the reference resistances of the earth.

The meter shows the resistance of the earth. But it is
neccessary that it should be below 1ohm

Is This Answer Correct ?    55 Yes 12 No

Do you know how to measure the earth resistance? if so explain it..

Answer / mallesha gc

Earth resistance measured by using earth tester.

Is This Answer Correct ?    40 Yes 12 No

Do you know how to measure the earth resistance? if so explain it..

Answer / natarajan

In this meter there will be four terminals(E, P1, P2, P3)
in which E and P1 will be shorted and connected to the grid
or electrode and P2 and P3 are reference electrodes which
will be kept on the earth surface on two different
locations for taking the reference resistances of the earth.

The meter shows the resistance of the earth. But it is
neccessary that it should be below 1ohm

Is This Answer Correct ?    24 Yes 15 No

Post New Answer

More Electrical Engineering Interview Questions

What are the reasons for the parallel operation of transformers?

0 Answers  


AMF (auto mains failure) control for DG sets at home.

1 Answers  


if a 3phase motor runnig in star delta starter with full load of its,and its rated 15 amps.now we conneted over load thermal relay at its main contactor,here what will be our amps sittings?

3 Answers  


up to what extwnt of voltage the celing fan works?

3 Answers   ICSA,


what is fuction static switch in ups and tell me use parts name and fucion

3 Answers   Dalkia,






In my 3 phase 4 wire electrical system N to earth voltage is 0.08 is it ok What is standard for it ?

1 Answers   Kay Bee,


Dear sirs, pls check this 4-20ma to RS485 module datasheet,pls guve me some suggestions. http://www.szsunyuan.com/sy/pro_more.asp?Productid=539 Thanks. E-mail:yunianjiang99@gmail.com

0 Answers  


suppose we using 3 phase motor of 440 v means what range of C.T. is require for measuring current , the rating of motor is 1HP ?

5 Answers  


What is the difference between newtral earthing and body earthing?

3 Answers   JK Lakshmi Cement, NPCIL,


In a simple spur gear train, gears with 24, 48, 32, 72 and 96 teeth are in sequence. The gear with 24 teeth runs at 900 rpm. The speed in rpm of gear with 72 teeth is

1 Answers   Caterpillar,


Is there any scope for an electrical engineer in MRF company......

1 Answers  


How to calculate cable size between battery charger to Battery ?

2 Answers   L&T,


Categories
  • Civil Engineering Interview Questions Civil Engineering (5084)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16630)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1094)
  • 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 (3013)
  • 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)