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
- 179632 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
what is formula for calculate thermal overload in new numiricalrelay( not in bimetal relay)?
we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.
when ID fan will immediately stop through VFD what exactly cause and problem the ID fan
I want to make street light with solar system ... What may I do for procedure and how much of estimation for each material ... If any one knows guide me and inform this id : aravindd7@gmail.com
how to calculate the tarriff for an industry whose kva demand is 10 mva
How Calculet The UPS AH In Load
Why the magneti fields are not passes from southpole to north pole
how to calculate the settings for shaft ct protn in hydro generators
Draw torque - speed curve and load curve of induction motor? mark operating point ?
Write a note on materials used as a fuse element.
How delta connection in the primary of distribution transformer reduces harmonics?how delta connections reduces harmonics?Please answer me...Hope that question is correct.
In all analog voltmeters or ammeter showing some small size symbols. as well as a star and in star 2no. digit, resister symbol,and other. what is that's meaning ?
Cables Construction hi friends, 0.6/1/1.2 kV LV , DC and Control cables are concentric copper conductor what does its means and what is the use of concentric copper conductor,and are this with copper tape shield or copper screening, ? thanks
How select ELCB for 32amp. socket having quantity 12Nos. We have to do this wiring in PLANT. Please Also explain the incoming cable specification.
Did RMU have ct and pt ?
