Why the pointer of earthing of 3 pin top is made thick and long compared to the phase and neutral pin ?
Answers were Sorted based on User's Feedback
Answer / madhusmaya sahu
Because when short circuit the excess current flow first through big &longest pin into the earth
|Is This Answer Correct ?||4 Yes||0 No|
earthing of 3 pin top is made thick and long compared to the phase and neutral pin because resistance of a conductor depends on its length and area.
as resistance is inversely proportional to its area,to make low resistance path area should be more.So because to flow earthing current easily pin is made thick and long.
|Is This Answer Correct ?||2 Yes||0 No|
Answer / rishikesh borse
The longest pin is of earthing
|Is This Answer Correct ?||0 Yes||2 No|
what is fault level of power system ?
how can calculated the rating of the 11 KV transformer?
State and define norton’s theorem?
how to calculate cable size with respect kw
In all analog voltmeters or ammeter showing some small size symbols. as well as a star and in star 2no. digit, resister symbol,and other. what is that's meaning ?
I want formula to calculate current loss with distance in km.I searched many sites but didn't right answer.Plz reply me
How to Calculate the Fault Level of Electrical Installation
how much LT load can bear by the 100 KW HT connection.
what is ground fault current? is there any current flow takes place through ground? is it possible? if it's possible whether it affect human beings on earth near the fault or not?
We have a couple of oil tanks at our plant. One of them does not have a lightning arrester installed. My question is it necessary to install an arrestor on every tank or will this particular one be covered by the arrestor installed on the ajdacent tank, Since all the tanks are close to each other. Basically, I want to know that if these arrestors or protection works in a parituclar area of effect or influence. Thanks
working principle of oil startar
does the transmission line model also requier active power in no-load operation?