Why we use auxillary relay ? what is function of
differential relay, directional o/c relay?
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Why the airgap of an induction motor is less compared to that of a synchronous machine?
4 Answers MGVCL, RRB, WebTech,
what is the voltage regulation for unity and zero power factor?
what is the diference beteween dedicated earthing & body earthing?
I have a small system with two motors that are running on 380 vac, 60 hz. These motors are expensive and I usally get them from Brazil. I am adding another motor to the system, but I want to purchase a 480 vac, 60 hz motor to use. It will be on a VFD that is rated fro 380 thru 480. Is this posible and will I have to use a larger motor and derate it?
0 Answers US Electrofused Minerals,
v=I*R, i.e V is directly proportional to I. now P=V*I. so V=P/I. thus v is inversely proportional to I. so what is the correct one? If both are correct than for which kind of condition this 2 differ
How much current flow in no load condition of a motor?
in 132 kv transformer , in which range of transformer oil bdv required ? if it has around 50-55 , then how it was insulated the winding ?
Why air circuit breaker off due to power failure?
how we can improve P.F. by using capacitors ?
On monitor it is written that current rating is 2.2 Amps. Is it a monitor current drawing capacity or CPU & monitor. If it is only monitor rating, what will be the rating of only CPU and what will be the power consumption rating of PC, Monitor & Scanner? In net, I learnt that computer consumes only 200-300W while running. With the current rating of 2.2 Amps, how it could be 200-300Watts. Please explain?
how winding temperature detects in power transformer...?
If we give 2334 A, 540V on Primary side of 1.125 MVA step up transformer, then what will be the Secondary Current, If Secondary Voltage=11 KV?