Answer / sreemani84

VFD- Variable Fre. Drive

Normally motor is running in 50 Hz frequency.By using the
VFD we can able to change the frequency. if frquency is
getting reduce means speed of motor also will be reduce. so
we can the save the power

Answer / rohit pareek

vfd means varriable frequency drive also known as
vsd,inverter,vsvf drive means it is a electronics device
based on volt/hz ratio.

f=N*p/120 means if u will varry the frequency the rpm will
also varry. thus P= 1.73*VI COS PHI IF THE device getting
less current the power also dawn and unit also decrease
hence the power will save

Answer / sreemani84

thanks rohit

Answer / rajesh

Above sugestions always acceptable vfd running in respected
to requirement if vary the requirement then only posible to
get power saving unless not possible

Answer / karan

HOW TO VARRY THE FREQUENCY OF THE SUPPLY (230 AC MAINS) ?

Answer / pvp

Power consumption is directly proportional to N3 and
speed is directly proportional to Frequency.

If we reduce 2 to 3 Hz also will give good power saving.

Answer / virendra

Frequency decrese then flux increase & hence current decrese

how we can improve P.F. by using capacitors ?

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