Interested to Buy Any Domain ? << Click Here >> for more details...
Do you know how to measure the earth resistance? if so
explain it
- 42 Answers
- 179872 Views
- ABB, BEL, BridgeStone, College School Exams Tests, Dalkia, Dalmia Group, DEC, Electrical, Genpact, HEC, IOCL, JLL, L&T, MSEB, Saraca, Sical, Telecommunications, University Exams, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
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 ? | 478 Yes | 30 No |
Answer / shanmu
Earth Resistance is measured by the device'EARTH MAGGER'.
| Is This Answer Correct ? | 300 Yes | 121 No |
Earth resistance can be measured using Megger instrument.
| Is This Answer Correct ? | 335 Yes | 180 No |
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 |
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 |
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 |
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 |
Earth resistance measured by using earth tester.
| Is This Answer Correct ? | 40 Yes | 12 No |
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 |
what is the abbreviation of MIMIC regarding control and relay panels of power systems????
Can u explain : what is supply for train (whether a,c or d.c ).I know that supply is 25000v a.c .But there is rumour that supply is D.C. And also explain how lights and fans inside the trains are working ,and what type of motors are used in trains whether D.C motors or induction motors .If d.c motor, how it gets supply.If traction motors are used then what are traction motors and its functions and how it differs from other motors and also explain about locomotive . please reply..............
What is Star Delta Connection, where it is applied & what for it is used
4 Answers Premium Transmission,
can we start a 6.6kv ht motor with 415 lt supply
what is difference between di electric and insulator?
how many types are their in switchyard or substation(like D,I TYPE), what is differant between them
Explain the following and how these are working with PLC Unit 1 I/O Module Card 2 Adaptor Card 3 Ribbon Adaptor 4 I/O bus 5 I/O Devices
Why relay connected R phase and B phase.?
WHAT IS DIFFERENCE BETWEEN PHASE CONVERTER AND VFD
why ELCB can't work if N input of ELCB do not connect to ground?
What is the difference between earthing,ground&nutral?
How we calculate the current carrying capacity of H.T. cabel?
-
Civil Engineering (5086) - Mechanical Engineering (4456)
- Electrical Engineering (16639)
- Electronics Communications (3918)
- Chemical Engineering (1095)
- Aeronautical Engineering (239)
- Bio Engineering (96)
- Metallurgy (361)
- Industrial Engineering (259)
- Instrumentation (3014)
- Automobile Engineering (332)
- Mechatronics Engineering (97)
- Marine Engineering (124)
- Power Plant Engineering (172)
- Textile Engineering (575)
- Production Engineering (25)
- Satellite Systems Engineering (106)
- Engineering AllOther (1379)
