What is the permissible value of earth resistance and as per
which standard / act / rule ?
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can i use the six sigma method which is used in management area, in state estimation of power systems?
why ups rating in kva? and why ups are in parellel?.why isolation transformer is used in ups?
can we make a electric generator,which can not use any type of fuel,air,solar,gas,thermal,coal,petrol,etc and able to produce electrical energy (or self electricity generating generator)
where is core-type and shell-type construction suitable for transformers ?
how to calculate differential current when we testing differential relay..suppose we have 1000kw generator,630amp VCB,what value we should put /inject so that relay trip the VCB? PLLZ justify ur comment
Name two low frequency oscillators?
what will happen when the dc supply is given to the capacitor?
explain Density
is it necessary to earth the rmu before cutting off the transformer winding?if yes why?
what are the factors to be considered while design the breaker either HT or LT??
why we use copper earthing for neutral while for body GI.
Why reactive power is needed in a power system? How is it being absorbed or delivered by alternators? For reactive power control we are changing excitation but reactive power absorbing or delivering related to stator. How these two are interlinked? i want a detailed explanation with necessary expressions and figures?
A 1F capacitor is charged to 100V initially. A 1H inductor is connected accros the capacitor througha a switch. The current in the circiut when the switch is closed is____
how do u gauge the size of the cable ?for eg. consider a 300 sqmm L.T Cable.How do u determine the size of the cable seeing it pratically?
What are the different sign conventions used in electric circuits?
