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Why the transformers are rated in KVA. ? in new view.
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Swg formulae
I want single line diagram for AMF & DG syncronizing panel
If o/p power is doubled by how much does the sound increase
True or false question. 1.The fuse provide phase and neutral 2.power loss in electrical circuit can take place in (resistance or inductance or capacitance). 3.two phase system each phase has separated by a phase difference of (90 or 180 or 270 or 45). 4.3 phase balanced star connected load neutral current shall be (line current or phase current or zero or unity)
at what basis/standard we have to arrive the current density of aluminium/ copper in busbar?
by using pump duty, how we will can calculate the motor duty(KW)? is there any standard or formula.
how to calculate the loss tangent of electrical cables
Why frame of the motor is specified?. If we mention KW and voltage level,automatically frame is decided or separately frame is compulsory to mention?.
A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.
What is icu and ics in Acb and how many time icu or ics passes from breaker?
What is the function of capacitor in electrical circuits?
how to select diiferent power transformers of same capacity on no load loss and full load loss by economical point of view.?
when elecromagnatic waves are propogated in a wave guide?
How do we calculate the Out put voltage of generator, after the excitation is being given?
What are the advantages and disadvantages of closed-loop control system?
