Answer / sandy

to make the fan motor self stating and to inprove the power
factor capacitor used in fan not resitor.

Answer / qurrat ul ain

Capacitor is used in series with the auxiliary winding of the fan motor to make the phase difference between main winding current and auxiliary winding current equal to 90 degrees. This makes the fan motor self-starting. The auxiliary winding along with the capacitor may be disconnected after starting. However, generally the capacitor and auxiliary windings are allowed to remain connected in order to improve the motor performance, the power factor, in particular.

Answer / lokeshraj

CAPACITOR SPLITS THE MAGNETIC FIELD AT SOME ANGLE TO MAKE
THE MOTOR SELFSTART.

Answer / yk

we use capacitor not resistor b'couse in short for phase
difference in starting winding and running winding flux .

plz tell me about for how many rating (for 500kva)how much current taken?

13 Answers  

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For 1 KVA load how much KVARH capacitor can be used ?

3 Answers   NLC, TNEB Tamil Nadu Electricity Board,

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why transformer measures in kva

4 Answers  

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IN THE CASE OF AN ELCB, IF THERE IS ANY UNSTABILITY BETWEEN PHASE AND NEUTRAL IT MAY TRIP. BUT MY QUESTION IS WHEN A LOAD IS CONNECTED IN BETWEEN P AND N, THE LOAD CONSUMES SOME POWER AND THERE IS A DIFFERENCE IN NEUTRAL WITH RESPECT TO THE PHASE. THUS ACCORDING TO ME, THE ELCB WILL AUTOMATICALLY OPERATES WHEN EVER THE LOAD CONSUMES-- I KNOW IT IS WRONG. BUT THE SOLUTION IS?????????

1 Answers   KSEB,

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will a fluorescent bulb work when dc is passed through it?? if not why??

4 Answers   TCS,

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what is the minimum winding resistance of 30hp compressor, to run or to switch on

0 Answers  

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how choose conductor &caple&wire depending upon the load

2 Answers   HCL,

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why Ac current is alternating in nature?(or)why alternating current changes its direction?

3 Answers   APGenco,

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Weather power factor correction needed for synchronous motors?

1 Answers  

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why do you add the load short circuit impedance when considering short circuit amperage. It seems that you should only consider supply. If you need to consider loads and you don't know what loads are to be added , what would be a good sub-transient reactance rating for the loads?

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i have a wire.and the current flowing in that.when we cut the wire then why dont we seen the elactrons....

8 Answers   GM General Motors,

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what is the difference between watts and volts?

2 Answers  

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