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 

what is threshold voltage for a relay???what does it exactly means ?whats its value in our indian transmission system say 11kv feeder RMU relay

3 Answers  

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how to deside the capacity of chock for drive?

0 Answers   Essar,

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In CT, burden is 15 VA and protection 5P20,CT ratio is 100:1 then what would be the knee point voltage ?

2 Answers   ERL,

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features of hbc fuses

0 Answers  

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How to know any size of cable if there are not written on cable? Answer must be theurical not by experience.

0 Answers   El Seif,

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how the earthing point or earthing is taken for ships and airplanes?

1 Answers  

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why voltage rating not mention at HPSV or HPMV lamps?

2 Answers   OPS,

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how we can decide that what value of ht line will come to any commercial building? (ans except According to the building load)

0 Answers  

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what is difference between bus coupler and auto transfer switch

0 Answers   Dubai Properties Group,

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Can any one explain me about 2 phase motors ?

2 Answers   L&T,

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Why 3 phase induction motor getting supply in body if one of it's phase is cut

0 Answers  

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what is electricity

3 Answers   APGenco,

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