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 .

What are the specifications for conducting earth leakage test as per IEC standard?

0 Answers  

---

Why do we have 110V, 230V, 415V etc. in electrical transmissions? Why not 100V, 200V,400V?

4 Answers  

---

what is the difference b/w circuit breakers and relays?

3 Answers  

---

what is the problem of generator over voltage.?except automatic voltage regulator card

2 Answers   Siemens,

---

please explain power factor in simple words.....

3 Answers  

---

what is the use of 6.6kV/6.6kV Transformer???

3 Answers  

---

what is cutoff voltage?

3 Answers  

---

How to perform a DC resistance test In Alternator and their proceduces?

0 Answers  

---

Explain the different methods used in the choice of rotor slots for reduction of harmonic torques in an induction motor.

0 Answers  

---

How to do the REF Stability test for power transformers in Site?

1 Answers   Escorts, Siemens,

---

without any theoretical calculations, can u approximately tell the current rating of a motor(above 30hp)working at 415VAC.

7 Answers  

---

what is self commutation how a thyristor discharges through a capacitor and inductor

3 Answers  

---