Answer / rajesh

capacitor of the fan motor weaken after some time so it does not split phase with full capacity and produce low torque. if you change motor capacitor it will run fast.

Answer / ashok mishra

u can connect 1 more capacitor along with previous one in parallel
ur fan will run much more starter than previous speed but rating of capacitor  should be low as 1/3 value as already connected

difference between isolator and circuit breaker?????

7 Answers   Enercon,

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why not starting switch first connect in direct on line starter?????

0 Answers  

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Sir Power transformer :- (in generating station) Alternator terminals side - Delta HT transmission line side - Star Why?

4 Answers   Kirloskar,

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What are the rating wise protections required for Generators from 600KVA to 2000KVA

3 Answers  

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Define the overload capacity of the motor.

3 Answers   Alstom, Maynilad,

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Why Ferranti effect is occoured in leading power factor load in a overhead transmission line?

1 Answers  

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Any one can explain if there is any harm from humming noise heard from air circuit breaker : we have 415 switch board having two incomers from transformers 3.3KV/415V , when bus coupler closed, and open one ACB incomer to work in one of the transformers, the current started hunting around 50 Amps, and heard humming noise from the air circuit breaker, although the load current was only 1200 amps while the ACB capacity is 2500 Amps, and the transformer 1600 KVA. The same didn't happen when taken the other transformer offline. Why this humming noise and current fluctuation? is there any implication or danger, bearing in mind that we just returned everything back to normal and stopped the maintenance of the transformer. Shall we go ahead and ignore this noise?

6 Answers  

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why the genearation of electricity always in form of sine wave only ??? why not cosine wave ???

1 Answers  

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Is it posssible to obtain the higher speed(3000rpm) for adiferentiallly cascaded induction motors(with 8 and 6 poles)

3 Answers  

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How much DC or AC Current that a Human Body withstand for Electrical Shocks?

4 Answers   Suzlon,

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electricity requires a medium to flow and it cannot flow through air. so how does lightning come to earth through air without any medium?

3 Answers  

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What is the purpose of stand by earth fault protection for transformer ?

0 Answers  

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