what is the purpose of neutral grounding resistor (NER) and
why?
Answer Posted / elizabeth
Neutral Earthing Resistors (NERs) – sometimes called Neutral Grounding Resistors – are employed in medium-voltage AC distribution networks to limit the current that would flow through the neutral point of a transformer or generator in the event of an earth fault. NERs limit fault currents to a value that does not cause any further damage to switchgear, generators or transformers beyond what has already been caused by the fault itself.
| Is This Answer Correct ? | 45 Yes | 2 No |
Post New Answer View All Answers
What is pi controller?
we have 15 ampere variyac but we want 30 ampere variyac what we do
plz send me the syllabus or any sample paper for engineer trainee recruitment if any,on ravinder911@yahoo.com
What is the power requirement of tamil nadu for one month?
How RTCC panel is working and give single line diagram for RTCC with transformer?
after how many spot we must chang secondry cable in portable spot welding gun?
how ct burden,magnetising current,ratio and knee point voltage are related & derived
how to calculate power consumption in slip ring motor at different step
State the types of distortions in amplifier?
I want to know how to calculate the size of electricity cable in building?
difference between Ac and Dc mcb ????
How to calculate KVA/VA rating of PT or CT from primary & secondary voltage or primary & secondary current?
For some transformers we are using solid neutral earthing while some others we are using resistance earthing why ?
What does quality factor depend on in resonance?
can i use 4 number of circuit breaker as single phase manual change over switch? if yes then how plz also send ckt diagram at nazimzamurad@gmail.com