what is the earthing condition between earth & neutral.
Answers were Sorted based on User's Feedback
Answer / glen
if you see the voltage level between earth and neutral is
approx 2to3v
this is becoz
earth is at potential zero
but neutral is not at exact zero
it is zero volt with respect to phase but is floating with
respect to earth
| Is This Answer Correct ? | 26 Yes | 0 No |
Answer / mark spencer
The neutral is connected to earth at the feeder
transformer. The neutral current (from single phase or
unbalanced loads) flowing through the resistance of the
neutral conductors between your position and the
transformer raises your neutral to earth potential
accordingly.
| Is This Answer Correct ? | 2 Yes | 0 No |
Voltage difference b/w earth and neutral depends upon supply voltage, load and earth pit connectivity(bcz in all same conditions except clay nature means alklye ness and dryness, the voltage diff. is always different) as i have seen in india as well as in Sudan and zambia.
this is not fixed b/w 2or3 volt.
Bcz if the supply output is open ckt then no voltage will get but as the load increases the voltage b/w earth (if earth pit are perfect) and neutral will increase as the earth potential is zero (fixed).
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / mphiremath
earth to neautral voltage should be less than 5 volt..
| Is This Answer Correct ? | 1 Yes | 0 No |
Voltage difference b/w earth and neutral depends upon the leakage current and that depends upon supply voltage, load and earth pit connectivity(bcz in all same conditions except clay nature means alklye ness and dryness, the voltage diff. is always different) as i have seen in india as well as in Sudan and zambia.
this is not fixed b/w 2or3 volt. But it must be as low as possible by making perfect earth pit.
If the supply output is open ckt(zero leakage current)then no voltage will get but with supply as the load increases the voltage b/w earth and neutral will increase as the earth potential is zero (fixed).
| Is This Answer Correct ? | 1 Yes | 0 No |
Why you are switching off arc protection mcb when you are taking shutdown for lv board.
Do you need any help with FEWA Electrical Supervisor exams?
In 3 phase induction motor 1hp current rating is 1.5 amps constant ? is correct or not ?
what is lrs tank water resistance.
In LT cables 3.5 core cable are available that means 3 core and .5 for neutral Why .5 for neutral and is there any reason for that please suggest thanks and regards pavan kumar
This is about the recent problem that we have faced in our project site. We have 6/7.5 MVA. 66/11kV three phase star - star power transformer. The neutral was solidly connected to the earthing mat. But because of high resistance of earthing mat (130 ohm on LV and 180 ohm on HV), one day LV side neutral earthing conductor melted and we had a huge damage. Can any one plz tell me what might happen when we connect power transformer neutral to the earthing mat which has high resistance (>100 ohm ) ?????
A commercial Building is designed with 14th floor levels with indoor substation of three phase transformer with rated capacity of 1000 Kva.The transformer delivered 65% of its rated capacity at 0.67 power factor lagging.Because of low power factor, the power customer was penalized and certain cost was charged accordingly based on every point percentage lower than 85%.This situation may repeatedly happen on the succeding energy bills of power customer.The power customer is desired to improve its historical power factor of 0.67 lagging and no further penalty be impose by the local power company on the next bill. Q: Identify the appropriate solution you want to offer to Client?.Justify SCIENTIFICALLY and MATHEMATICALLY the principles behind the solution.
Transformers with dc supply
how does excitation of brushless alternator took place?
Which type of losses in transmission Line
how we can differentiate a motor and a generator just by a glance?
what is meant by generator differencial protection?
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)