Interested to Buy Any Domain ? << Click Here >> for more details...
what is the purpose of neutral grounding resistor (NER) and
why?
- 8 Answers
- 49529 Views
- CBRE, Square Textiles, I also Faced
- E-Mail Answers
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
why Y CONNECTION IS BETTER INTERMS OF EFFICIENCY AND P.F FOR A LAOD LESS THAN 40% AND WHY AFTER DELTA IS BETTER FOR > 40%
How earthing of switchgear system to be done.
Why power genaration in India is at 50HZ while America its 60HZ
where rlc series ckt used?
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?
What are the two basic types of transformers?
ii) A shunt motor supplied at 230V, runs at 900 rpm when the current is 30A. The resistance of the armature is 0.4 ohms. Calculate the resistance required in series with the armature to reduce the speed to 600 rpm, assuming that the armature current is then 20A. [12]
what are the analog quality input for protection function?what are minimum reqiments?
what clearance required for 4.5 mva dry type transformer?
how is the incoming cable size calculated for a given current rating of a panel??
hi....I am from india..i have completed my engineering in electrical and electronics field with 58.4% and my IELTS score is 5.5 bands....Recently i received my I-20 in computer and information science from Troy university in Alabama.On 18th i have a visa interview can u please tell me what type of questions i have to answer ??????
how is working bearing heater?
what is formula for zero phase sequence of nuetal earthing transformer of 6.6 kv
2- What are the percentages between excitation currents in phase (R, S and T) in ∆ and Ỵ connections in excitation Current test in transformers?
What is the difference between alternator and generator?
