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
- 178050 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 / ahmad abu alrob
Normally no meaning for earth resistance, we use a
measurement of resistance in a definite location to
calculate the Earth Resistivity which can be used for the
calculation of Grounding/ Earthing mesh resistance.
Measurement can be done in one of the following:
1- Normal Volt/ Ampere method: Inject current and measure
voltage , then you will got the resistance.
OR
2- Wenner method using 4 electrodes: You should use the
equipment especially used for this purpose, and you should
follow the instruction attached with the equipment.
OR
3- Using Schlumberger method applying 4 electrodes: same
equipment used in 2 but different calculation applied.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What is the classification of hydro projects based on installed capacity?
What is meant by Low Resistance Cable and High Resistance Cable.
give me a clear defination of inductance,and how can u calculate inductance of a motor
A 100W electric lamp is supplied from a 115V, 60HZ source. The peak instantaneous power dissipated in the lamp filament is
11kv/433v delta/star distribution transformer primary side full load Ht current is 83.33A in , but input side VCB rating 800A.why?
how are reversing the direction of dc motor
A 400KVA transformer has 400 Hz frequency. If the frequency is changed to 50 Hz, then what will be the new KVA rating?
is there any role of power factor with frequency variation? and how we can manage the frequency variation?
How to calculate loses in transformer of 160 KVA ?
what would u consider to be the basic purchase order information you would need to proceed with a cable inspection assignment?
What is the most accurate way of testing ELCB?ELCB is better than RCD?
Dry type transformers
What is industrial plc
why wire sizes are 3/29 or 7/29 and why not wire sizes are 2/29 or 6/29?
What is the differentional relay...what is the work of this in power Tx. how it is works..
