Interested to Buy Any Domain ? << Click Here >> for more details...
What should be the earthing resistance of an industrial
substation and also What should be the house hold earthing
resistance?
- 20 Answers
- 112816 Views
- Jindal, Pharma, TAAT, TATA, I also Faced
- E-Mail Answers
Answer Posted / mitesh v dixit
industrial earthing resistence should be very betwwen .5
ohms to 5 ohms.
0.5 ohms-excelent
0.5 to 1 ohms- very good
1 ohms to 1.5 ohms- good
1.5 to 2.0 ohms-satishfactory
2.0 ohms to 5 ohms- not satisfactory.
note imp- This resistence consider of near induviusal
earth pit only.equipement earthing value should be very
betwwen 0.5 ohms to 12 ohms depending on size & distence of
earthing netwerk(GI PATTI OR COPPER PATTI OR WIRE)utilise.
| Is This Answer Correct ? | 43 Yes | 7 No |
Post New Answer View All Answers
Mention the disadvantages of low power factor? How can it be improved?
what is the difference between online & offline caliberation of KWH meters. Can Digital meters be caliberated
If I bring a basic electric meter from the States and hook it up in Costa Rica in a development that has only one transformer for the 50 homes, will it still be accurate regarding the usage of kilowatt hours?
how to carry out Magnetizing Current Test on Distribution transformer and what purpose we are doing this test. why transformer rating in always in KVA ? what ispositive, negative, zero sequence impedence? How ElCB tripping if Neutral touch with ground Why AC & DC capacitor are use in UPS ? why motor rating in KW? how to syncronize two dg sets
What is the difference between in Fourier series and Fourier Transform. and please tell me the difference between both of them and the why we use them in communication system?
3phase cable calculation formula by motor load
(1)Can earth and be conected together (2) what is the diferent between earth & neutral
what is transistors comprised of?
what is the soft starter principle? how is connection diagram? what is the procedure for checking the connection?
sir i am apearing for nic exam.i dont know exam pattern.can you please send me some model papers
DEFINE BREAKING CAPACITY OF BUSBAR & HOW IT IS CALCULATED?
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?
State how to produce a constant rotating field by application of alternating currents to stator armature of a three-phase squirrel-cage induction motor
at which voltage level arcing ground is occurs ??????????
For a spring controlled governer the relation F = ar+b (F is the controlling force, r is the radius of rotation a and b are constants), indicates that the governer is
