why the earth terminal in three pin top is longer than rest
of the two terminal and of bigger size?

Answer Posted / sunil ulange hit nidasohi

Because Current always take low resistance path, i.e
Resistance is inversely propotional to Area,

means higher the fault current, lower the resistance,
Higher the conducting area i.e Earth terminal area is higher
than normal pins

R = ql/A, Resistance increases, area decreases

Is This Answer Correct ?    17 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Define newton's law of viscosity.

687


What is speed mode?

1251


Explain about Dubai electrical sysaem? Explain about Dubai drinking water system? Explain about Dubai Burj tallest building Electrical,Water.etc.. maintenance system?

1660


can anyone give an idea about dia calculation in cold rolling mill

1179


what is the transmission loss for electrical supply? specifically a large shopping complex where the grid is half KM away, what will the % of transmission loss? is there any transmission loss for captive unit generation for above set? thanks

1532






WILL SCHNEIDER MAKE ACB(MASTERPACT)TRIP ON REVERSE POWER?

1814


how many joint can done in HT line and what is life of the joint

1749


Name two low frequency oscillators?

899


How to calculate the fuel consumption for 600kva DG genset which connecting with 25%load?

1699


Tell me the reason of connecting domestic t/f primary in star or delta,and also secondary side.

1547


how does the terminal voltage of transmission lines increase when a capacitor is connected???? This happens not only in transmission lines but also in all circuits. How??? When a capacitor is connected in a transmission line, capacitor also takes energy from the same supply. But how is it able to increase the terminal voltage??? Practically What sequence of events happen during increase in voltage???

1616


Explain how you decide what size of electrical wire do you need?

670


1) Explain why we don't link the two earthing system ht and mv on a pole mounted transformer sub-station.

1278


i want to model paper for section engg.

1566


What will be the output voltage of a transformer if it is primarily energized from a square wave voltage source?

678