1.Why hydrogen used for cooling in generators
2.Why electrical equipment protected by ground
3.Why earthing for transmission line
4.What is rms value of half wave rectified square wave. If Rms value of actual wave 2amps.
Which motor will you choose which can operate in both lagging as well as leading power factors?
why neutral busbar size is half of the phase busbar size in control panels
Define over current & earth fault ?how its functioning ?
If we increases the %impedance of Transformer then price of Transformer will increases or decreases.
How we can calculate what type of supply we need for an example sometimes we take 11 KV and sometime 33KV from EB ?
what is the material use in bus bar & why.
what is the breaking capacity and making capacity of circuit breaker and how
what is basic difference between the normal tube light choke and electionic choke ?
i have interview in Pepsi company what type of question will ask please send the question and answeer
Why Drives are used to run AC motors?
How to run 1ph motor(230 VOLTS its full load amps is 4.5 ampa))with 480 volts main(we didn hav neutral)Thn we go for step down transformer.Our load 10 amps,so we conisder this amps in primary are secondary side?
why we usually call 415 volts instead of 440 volts