Answer / elangeswaran

the motor speed will increase the increase in frequency
lead to more heating due to iron and hysterisis losses as
they are directly propotional to frequency. the mechanical
design also will not support the high speed

Answer / lalchhotex

when we increse frequency of motor through drive in this
condition motor RPM also increase

Answer / prasad bhagwaty

if drive freuqvency increased then motor speed incresed but motor over heated 

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