Answer Posted / sunil bhat abb
Floating Neutral is a condition when neutral is not
grounded the case may be when single phase Cable say 66 KV
having lead sheath is not grounded at either side as a
consequence the Neutal end point (sheath ) develops some
potentail say 50 Volts under normal condition and in case
of fault due to transformer effct between sheath and
conductor the voltage of unearthed(floating end) end gets
abnormally high so a Lighting arrestor /surge arrestor is
used at floating end
| Is This Answer Correct ? | 11 Yes | 6 No |
Post New Answer View All Answers
what is the formula to calculate voltage drop/loss on 66KV Transmission Line?
why does a dc machine has high efficiency while working as a generator than as a motor ..
If a current -8+6sin6t is flowing three ammeter, one is a centre zero PMMC meter, one is true rms meter and one is moving iron meter. What are the reading of these three meter respectively?
If 22 KV HT line, Current transformer is 25/5 then how to calculate multiplying factor.
What is meant by rotor?
I have a 380 KVA DG set. How can i find out 1. My Fuel Consumption per hr ? 2. Electricity produced in 1 Hr. ? 3. If load varies then how does it affect fuel consumption & electricity produced ? Please HELP !!! Really need an answer.
how to setting voltage RTCC panel
If you have an earth with pilecap then your resistance is really low. why and how?
I have a current transformer with 1 main reading meter with transformer outside the building and a control panel having 5 CT reading meters with black round coils inside the building. I want to know, A) when current pass through the Transformers, will the current be reduced or be the same and after that B) when current pass through the CT meters with black round coils, will the current be reduced or be the same. C) in the above process will the reading of the main meter be same or different, from the total reading of all the 5 CT meters.
Please help me regarding my one concern. - During earth pit testing we noticed that the Clean earth pit and dirty earth pit showing continuity (Resistance value - 5ohm) . I want to know that if both earth pit have separate location and there is not internal looping between PIT then why such continuity is showing on it . Because of this issue the field side all earthing point showing short. In PLC panel we are providing two types of earthing cable which is coming from separate earth pit (Clean and Dirty earth pit) because of earth PIT showing short our PLC is not complying spec . please help regarding this issues.
1.What will be stored in online ups EPROM IC?
Why magnetic flux produces an induced current?? what is the detailed procedure ?? ans plz
HOW TO CALLICULATE RESITENCE,REACTANCE AND IMPEDENCE VOLTGE OF TRANSFORMER 13.33 KVA 144/240 VOLTS 93/56 A WITH FORMULA
what material is used in capaciter
how much allowable resistance that can be difference in motor all coils?