What is the difference between AC choke
(inductor) and DC choke (inductor), working and design point of view?
Why secondary of open delta pt (two element pt)
center tap is earthed? What happen when this earth is removed?
Alternators are invariably star connected why?
What is the difference between SSR drive& AC drive?
What will be change in programming when we use 5/3 solenoid in place of 5/2 in operating of a cylinder?
What is isolation Transformer?
Why battery is connected in series?
Why Transformer in KVA?
What is function of pump in DG?
Why DG neutral is earth?
What is the principle of high speed direct drive motor?
Can we load Power capacitors on DG sets?
What are the factors required for selection of transformer rating?
Why the frequency is 50 Hz in India. Can we use some other frequency? If so what is the range and what will be the effect in present power system if we change the frequency as you suggest?
Consider a 415v/200v step down transformer. Can we use it as step up transformer by giving 200v in secondary and taking output from primary?
What is the maximum generating voltage in India?
How power cable & control cable can be differentiating from each other?
We have one ups its neutral is not earthed. It’s one distribution MCB has an
earth fault .but we cannot put off any MCB. So how to find out that in which
circuit is earthed without isolating the breaker?
WHAT IS THE MEANING OF KEY SINGLE LINE DIAGRAM?
What is the meaning of rms value?
What is de-rating factor in Cable? How we minimize
this?
How we can calculate the transformer size?
