What is min and max voltage between earth and neutral/phase
if it perfect earthing?
Answers were Sorted based on User's Feedback
Answer / srizdhar
Volt between netural and erath should be zore as per electrical law,but in site or aney applecation it should belwo 130 micro volts, why means erathings stays rooting parrlally to power cables.
Is This Answer Correct ? | 0 Yes | 2 No |
Answer / k s yadav
Regarding Q11, whenever get more voltage across neutral and
earth that will imbalance the phase voltage with respect to
neutral as well as phase also cause conneted load or
sensitive devices might be got faulty or do the wrong
operation as per induction theory.Therefore earth leakage
voltage should be zero in ideal condition but in practicle
should be maintained less than 1 voltage in organisation.
Is This Answer Correct ? | 0 Yes | 3 No |
Answer / raz
1- Voltage between phase & earth less then 3V.
2- Voltage between phase & neutral is 230v.
Is This Answer Correct ? | 0 Yes | 5 No |
Answer / rajasekaran.raman
what suresh said is correct only for second and third ,but
1st how could you say that value?
Is This Answer Correct ? | 8 Yes | 14 No |
Answer / abdul gafar
most of the 3-phase stepdown distribution transformers
manufactured in india are 11KV/433v. assuming that the the
voltages are measured at LT Side of the transformer and
earthing is perfect ( i.e. when meggered with 500v megger
the resistance offered by the earth is zero)then,
earth to neutral= Zero
any one Phase to earth= 250V
& any one Phase to neutral=250
(the value 250 is arrived from the fact that the voltage
from phase to Phase is equal to 1.732 times that of the
voltage between phase to neutral)
Is This Answer Correct ? | 0 Yes | 6 No |
Answer / john
Phase to earth should be 0 volt. But up to 6 Volts
permisssable.
Is This Answer Correct ? | 2 Yes | 8 No |
Answer / hariram
voltage between earth & neutral is always nil.
Is This Answer Correct ? | 2 Yes | 22 No |
what is phase to phase to phase to ground fault
what is mean by D.O. in distribution line poles?
What do you mean by Stimulastion Test in Diesel Genarator / Why & when it's conducted ?
lead acid battery electrolity?
what is megar healthy value for ht < cables
magnetizer priciple
For a 6.6kV Motor it is recommended to do megger test with 500 V d.c and not more than 5kV d.c but the Hi voltage withstand test should be performed by 12kV AC. Why the dc voltage test should be limited but AC voltage withstand test could be with such a high voltage?
In EB metering we face problem kva jump even in no load condition.can any one help to control this
why we remove capacitor connection in 3 ph Induction Motor while taking noload test.
Types of tempering of energy meter?
An 8 pole, 50 Hz, 3-phase IM is loaded to a poing where pull out torque will occur. The rotor resistance per phase is 0.3 ohm and motor stalls at 650 rpm. The slip when motor stalls is A 1 B 0 C 13.33% D 10.33%
why ht cable end termination don't have a gland?