Answer / deepak

By increasing the frquency, we can reduce the size of
transformer (In air craft,size of tranformer are very small
as there frequncy is 400Hz)

Answer / vaijanath nirgude

by incresing flux density bcoz , flu density =flux/ area of
core

Answer / mrudang

what we require , if we want to increase the flux density

the core we are using is CRGO

and what about the voltage

Answer / usman

there is no such thing that by increasing frequency we can decrease size of transformer , size mainly depends on its rating but there is a way to make size smaller but not too smaller . one of the guy gave the right answer that by increasing flux density one can decrease size.
the formula which he gave is absolutely right
if someone is interested i can give him further elaboration.

Answer / j.vinothkarthick

by increasing the frequency ,size decreases.but can anyone
help me how it happens nu?pls!!!!

Answer / mariappan k

increasing the frequency up to 400Hz,we can decrease the
size of transformer.we get 400hz by changing the poles in
generator also called rotary converter

we use 3 phase supply for induction motor why not use two phase supply .

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