Battery is a voltage source?
give one example of current source and why?
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why nearly all the voltage levels are in the multiples of 11 like 3.3 ,6.6 ,33 ,11 kv.....
Supose we have one 220v A.C fan.if we provide 220v D.C what will be happen?
How many types of DC current
why we are using KVA rating for transformer,not KWh rating?
how to calculate generator capacity?(kva)
what is mean by derating factor?
what is difference between isolation and ultra isolation transformer?, what is the method of testing ?
What will be MF if we have CT ratio is 130 of 3 nos?
in Megger what type of voltage(AC or DC) are produce.how they work.
i am an maintenance engineer. one distribution board have 5 feeder. recently its ELR trips frequently, but it take some times after trip( 10min,20min..)but 3 feeder no load. two feeder only loaded. i checked one feeder IR value all values are above 50Mohm.but B phase to Earth is only 9Mohm.any problem about low value
what is the relationship between phase & neutral
What is pi controller?
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