Do you know how to measure the earth resistance? if so
explain it
- 42 Answers
- 152721 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
Answer Posted / mahesh m
Earth resistance is measured by using earth Resistance
meter. it is using for four probe method.Two electrodes
for potentials and the other two for currents. There are
two methods, viz. Schlumberger method and Wenner method in
which two types of electrode assembly. There are special
formulae to calculate the resistance from the apparent
resistivity we get from the instrument. There are special
software to interpret the data.for current.
| Is This Answer Correct ? | 1 Yes | 2 No |
Post New Answer View All Answers
Explain in brief description about the operation of DG sets.
why 5kW motor becomes unbalance if its relay trip 1st time and its set value is 7.0 A
hi this is hema can anyone mail me previous years questions for the APPSC-A.E.E (in electrical stream.) ......thank u.
Role of active and reactive Power sharing in between two synchronized Generators, Droop Setting role ?
What is the meaning of floating point earthing in battery backed systems ?
can anyone provide me a amf panel control wiring using ec-2 relay?
what is the minimum (Common factor) insulatin resistance of the following a, 4mm sq wire b, cable from 50 mm sq to 800mm sq
State how to produce a constant rotating field by application of alternating currents to stator armature of a three-phase squirrel-cage induction motor
list the advantages of RCCB over other circuit breakers?
Is it required to use Automatic transfer Switch in L&T panel board if we use AMF panel with DG set? How the single line diagram will be? Please forward the material to sreenu_207@yahoo.co.in
r we are using in gas turbine mark (5) frame (6) (made in india Bhel 1997) Ā
what is the maximum permissible limit value of leakage current and leakage counter reading to replace lightining arrester?
Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example?
Is MEN and RCD related to each other ?? IF yes then how??
What is the difference between type1 and type2 relay protection co-ordination for motor feeders
