what is the difference b/w neutral and earth?what is the
need of earthing and what are the different methods for
earthing?
Answers were Sorted based on User's Feedback
Answer / madhusudhan
A neutral point is a junction of Three phases in Star
distribution circuit. this neutral should be earthed to
maintain high potential difference between neutral and
phase. when ever there is an unbalanced load distribution in
three phase circuit a emf will flow from one phase to
another phase through this neutral point. due to this
voltage in neutral the the Potential dofference between
phase to neutral gets reduced. so to maintain 0 voltage at
neutral point, neutral has to be earthed to the earth pit.
| Is This Answer Correct ? | 9 Yes | 0 No |
Answer / siva
neutral is the return path iof current , 3 phase neutral is
taken from junction point (star connection) its like
closing circuit for the load in earth is connected toneutral
in case fault is occur its go through the earth. fix the
earth bit rod in the ground connect to neutral
| Is This Answer Correct ? | 2 Yes | 0 No |
neutral is reference from where phase voltage is
measured also it serve the purpose of return path
in three phase.it is possible in Y connection .in
delta it is virtual.while earth is always at O
potential.
it is used reduce the shock hazards in equipment.
earthing is done by connecting the equipment with earth using conductor.
there is no as such method.
there is 3 methods of neutral grounding(not earthing)
1.solidly ground
2.RNS
3.INS
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / kapil pareta m.b.m engg clg
neutral is common junction point of star connection of distribution ..........it is most have some specific place.
earth is mean that our device if have create some leakage current that earth wire is transfer the voltage/current in earth......
| Is This Answer Correct ? | 0 Yes | 0 No |
which transfofrmer oil break down voltage strength get will be more if oil sample taken from bottom of tank or oil sample taken from top of the transfomer tank.
what is pilot wire? what is the use of pilot wires?
How is efficiency of DG set calculated? At many places I found the efficiency to be mentioned in percentage. But at some other places I found kWH/ litres. I want to know how dimensionless percentage value is arrived at?
what is KA rating and how can we choose switchgears on applications
how to calculate the ac and dc wire losses with calculations plz tell me
sir please send me previous year questions of jspl through which i could prepare myself fpr the test.
64 Answers FGH, HFT, Jindal, Jindal Steel and Power, JSP, JSW, Lin Engineering,
What is the difference between surge and impulse?
any earth foult trip the relay but in welding time not trip by earth foult
0 Answers Power Grid, Siemens,
what do you mean by earth fault in transformer?
What are the advantages & disadvantages of a group electrive drive?
why star point of HT motor not earthed?
why does the magnetic balance tests at transformer?
Civil Engineering (5086)
Mechanical Engineering (4453)
Electrical Engineering (16638)
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)