Do you know how to measure the earth resistance? if so
explain it
- 42 Answers
- 158863 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 / 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 |
Post New Answer View All Answers
What about electrical Units. discrive in detail
How to calculate LT XLPE CABLE for 11 kv / 433 v , 1000 kva oil type transformer system?
Which contains in POLE ASSEMBLY of a 11KV Kirloskar-make SF6 (Model No-FP620A12)? Will u clarify with drawing?
State the other types of Air Conditioners?
Why transformer used in UPS??
Define peak time.
UG cable sizes were specified in sqmm. But practically its not coming to mesure. What's the reason for that? And how they specify the size of the cable?
how much excitation voltage required to generate 1mw power?
What does the term “voltage regulation” means?
what types of cable used in underground coal mining?
how copper and aluminium wires or cables are choose for current rating? please provide copper and aluminium wire selection chart for different current rating ?
if there are six generators (3 gas CATT, one Jenbacher o1 MW each, and two nos Diesel 01 no 01 mw other 0.65mw EDGs ( say), 3 CAtt gas set have identical pole pitch,01mw EDG and Jenbacher gas Set have different pole pitch, how their power connection can be done to connect a common bus bar during installation. in short, how different pole pitched generators power connection can be done to connect a common busbar system through generators incomer ACBs.
i need to give section engineer (electrical engineer) for RRB. Please suggest some book
what happened when we supply a dc current in dc motor?? can it worked properly?
what is the common earth
