what is the acceptable earth resistance value ?
Answers were Sorted based on User's Feedback
Answer / k.prakashchandra
For 33KV(minimum)-5 ohm,66-2,110 to 400-1 and gen stations-0.5.
| Is This Answer Correct ? | 9 Yes | 3 No |
according to NES(US), the value of earth resistance should
be 25 ohm. For efficient system earth resistance value
should be minimum as possible as.
| Is This Answer Correct ? | 5 Yes | 18 No |
what are clipper and clamper circuits?
i heard that power factor(PF) is the main concern for industries, if they are maintaining PF around 0.6 they will be fined for that. now the question is, how can they improve the PF ranging between 0.9 to 0.95 which is safe for them i,e escaping from the fine?
What is the purpose of SSVW, IOVW, DVDF Tests in transformer? Those who are answering, pls send mail ids also.
why neutral should connect to earth in delta-star type transformer
Testing report of Earthing of 3.15 MVa PTR.
will a fluorescent bulb work when dc is passed through it?? if not why??
how we can find of current direction(supply comming/out going direction) when a transmission line passing through sides.
who invented electricity?
Why can't we parallel Voltage transformer secondary circuits?
how the CT and PT is connected in the circuit during testing of transformer explain with diagram
How to calculate the average power factor in 3 phase unbalanced system
What aturn on methods of scr?
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)