What should be the earthing resistance of an industrial
substation and also What should be the house hold earthing
resistance?
Answers were Sorted based on User's Feedback
Answer / ngundam
For house hold maximun value of earthing can be 2
ohms.But for a substation it should be less than 1 ohms.
Is This Answer Correct ? | 3 Yes | 0 No |
Answer / krishna naik
The earthing resistance of an industrial substation
should maintain always below 1 ohm. it measured of
resistance between earth plae and natural earth by ohm
meter. when earth resistance is near to zero means better
earthing.
The household earthing resistance somewhat slight above
1 ohm and below 2 ohm is the tollerable limit, but never
neglect above 2 ohm. the resistance below 1 ohm means more
safety.
Is This Answer Correct ? | 4 Yes | 1 No |
Answer / tanmoy dutta
400 s/s kv as per IS 2026 should not be grater then 0.5 ohm
220............DO.................................. 1 ....
depend on soil resistivity.
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / pankaj datreliya
How Many 11kv Trasformer Body & Neutral Earthing value?14th Floor LA Earthing Value.and Panel Body earthing value.
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / abhaya raj singh
according to IEEE maximun value of earthing can be 5
ohms.But for a substation it should be less than 2 ohms.
Is This Answer Correct ? | 17 Yes | 19 No |
Answer / kaviraj
if v want to gnd that current to the earth y v want to use a resistance better v can use a wire with 0 resistance so all the fault currents will be by passed.
Is This Answer Correct ? | 0 Yes | 2 No |
Answer / sayyed
hor residential area the earthing resistance should be less
than 1 ohm.
for substation of capacity less than 33 kv the resistance
in between 1-3 ohm.
Is This Answer Correct ? | 16 Yes | 40 No |
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