what is neutral grounding? why is it required? what is
neutral grounding resistor and how is its value calculated??
- 11 Answers
- 62357 Views
- NTPC, ONGC, I also Faced
- E-Mail Answers
Answer Posted / santhosh(adityabirla group)
tranformer neutral is connected to earth is called neutral
grounding
if neutral is not earthed in case of one phase is ground
faulty then other two healthy phases voltage become
dangerously high which result insulation failure
generator neutral is connected to earth through resistance
is called NGR
R(NGR) = vph / FAULT CURRENT
EX VPH = 3.8KV , FAULT =100
R= 38OHM
| Is This Answer Correct ? | 17 Yes | 0 No |
Post New Answer View All Answers
Why you want to join non technical field when you are an engineer?
In ups static switch if i gives the supply at output end it will open the circuit in stactic switch or not if it will open then how it operates.
What is different between resistance grounding system and resistance earthing system?
at what basis/standard we have to arrive the current density of aluminium/ copper in busbar?
can we use engine degreaser for electrical motors?
What is precision of a measurement?
why a tester wont shock while testing the power in house
How many types of electrical earthing are there?
what is the relation between knowing of the distance between power transformer and the capacitor feeder in case of parallel operation
Dear All we are having a problem in G120 BOP showing alarm A0503, F0052, F0060 we can not remove fault alarm ,Please any body help us. kowsar
what questions are asked in the interview for the post of an electrical maintenance engineer in FMCG companies?
How many wall/floor flange will i use in bus duct system if we have in our design a 35th floor building.
How u can give the overload setting to any motor protection relay for a HT motors with formula and Example?
why it is so called as xlpe(cross linked poly ethyline) cable?
sir my exam is on 19/6/2013 under electrical branch pls send me sample aptitude questions as well as sample technical questions for jindal steel and power company
