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 

neutral earth resistance testing is it possible for transformer while in load condition

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What is the use of iron core in a transformer?

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how calculate kva in to kw

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What is George phenomena to start the synchronus machine?

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how earth resistance can be improved in dry soil

0 Answers   BARC,

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What is the test block protection relay if any body know plz explained

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What is the diference between increased saety motors and non sparking motors?

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How to calculate cable sizing

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how we calculate the motor rating of pump for water suction ?its any formula for that plz give thank u

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What is clean Earth System ?

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why weight is put on pulley?

1 Answers  

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