how much resistence in proper earthing?

Answers were Sorted based on User's Feedback



how much resistence in proper earthing?..

Answer / sureshbabu

for the grid connected system the earthing value must be
below the limit of 1 ohm
for the individual connected system the earthing value must
be less than 5 ohms
this is the IEC standard for earthing and bonding

Is This Answer Correct ?    21 Yes 1 No

how much resistence in proper earthing?..

Answer / k.prakashchandra

In case of stations ,the maximum recommended values are
33KV-5 ohm, 66 KV -2, 110 to 400- 1.0 and generating station
-0.5.

Is This Answer Correct ?    2 Yes 1 No

how much resistence in proper earthing?..

Answer / simon

1 Ohm MAX in domestic purpose.

Is This Answer Correct ?    1 Yes 0 No

how much resistence in proper earthing?..

Answer / mohan babu bommu

there is no hard and fast rule in large sub stations 1ohm small substatioms 2ohms ither places up 6ohms permissable

Is This Answer Correct ?    0 Yes 0 No

how much resistence in proper earthing?..

Answer / sandip

UP TO 10 OHM IT IS OK

Is This Answer Correct ?    0 Yes 3 No

Post New Answer

More Electrical Engineering Interview Questions

Difference B/W A/C & D/C Motors..?

10 Answers   Toyota,


How harmonic block test are conducted on relays ( Siemens,Areva ect )power transformer using omicron kit?

0 Answers   Siemens,


Is it alright to connect more than one RCCB of same rating in series for a three phase equipment?

3 Answers  


What is the meaning of CT 40/5, 100/5 or in HT lines 100/1 ????????

3 Answers   Amex,


why the transformer primary and secondary windins vector groups vary? why it is something like Dy11 and not as Dy or Yy...

2 Answers  






what is star&delta connections?

5 Answers  


what is the usage of microcontroller in the panel board?

0 Answers  


Can any body tell gulf interview question for experienced electrical engineer ?

0 Answers   Gulf,


What is the major difference between P.T. & C.V.T ? Why CVT is used in HT Transmission line in place of P.T.?

13 Answers   APGenco, OPTCL,


What is the reasonable voltage between Neutral & Earth of an electrical system for good earthing?

6 Answers   HAL,


Which test will be more severe for VCB?

0 Answers   CPRI, Reliance,


what is the potential of 11kv A.B.Switch

1 Answers   Power Grid,


Categories
  • Civil Engineering Interview Questions Civil Engineering (5084)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16631)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1094)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)