Explain the function and difference of Restricted earth
fault, simple earth fault and sensitive earth fault with
connection diagram.
Why we need to carry out knee point voltage test of current transformer ?
How to select AC3 duty contactor for DOL & Star-Delta starters
what is the difference between surge arrestor and surge supressor
how to calculate cable size
How can we deside Short Ckt level of electrical System,Breakers etc.please provide formula to find SC of HV side & LV side
why power of fm is weaker than am?
what would happen if u assume to insulate all the overhead lines and no insulators....??do you think it to b an advantag or a disadvantage??justify.
What is ahu ? Working principal.
what is accuracy ? in any meters , coils accuracy . how can u defined that ?
how can we run the induction motor at 9000 rpm ,by keeping frequency constant??
Is reverse power relay of generator operate due to voltage variation problem? please clearify.
why are maintine power factor 0.99 in Eb line? why are used capacitor bank in Eb line? what is the purpose capacitor bank?
4 Answers TNEB Tamil Nadu Electricity Board,