Why the starting current in Induction Motor is very high as
compared to normal rated current ????
Answer Posted / desingurajan
The emf induced in the rotor depends upon the rotor frequency which further depends on relative speed between rotor and synchronous speed of rotating magnetic field. The relative speed at the time of starting or standstill is maximum and hence large emf in induced in rotor conductors or winding due to which very high current flows in rotor which is generally 5 to 7 times of the full load or running current of an indication motor.
| Is This Answer Correct ? | 20 Yes | 6 No |
Post New Answer View All Answers
What is the bundle conductor?
What are the factor to be consider for CT selection in 132kV substation?
for a 500 KVA connected load, I calculated 30% of capactor for power correction. Even after using 225 KVR capactor PF is not improving. What could be reason for low Phase correction factor?
What are the basic properties of signal flow graph?
which capacity of RCCB used for five thousand watt electricity load?
What is the effect of pd controller on system performance?
What is the Resposiblity of Electrical Utility Engineer
relation between power station capacity and voltage level?
WHAT R THE SAFETIES IN A HIGH TENSION PANEL N LOW TENSION PANEL. ALSO WAT SAFETIES R THERE IN A 200 KVA TRANSFORMER?
Disadventage of cable-gland earthing if any ?
Why L.T.Cable voltage rating is 1.1kV,where as system voltage is 0.415kV?
what you have to see after one week or month from the day of installation of transformer ?
How do you calculate the actual power consumption of an inductive load appliance. Say, a deep freezer of 200watts
1600 KVA ka transformer hi aghar lt side par 800A aur voltage 420 ho to HT side ki cable ki rating keya ho gi?
how to carried out DAR test in 11 KV Alternator ?