WebJun 9, 2024 · In the range of slip, with the increase of air gap width, this kind of equivalent circuit cannot reflect the motor performance well, and the average errors of the motor with the three mechanical air gap widths are 10.7%, 13.63%, and 17.33%, respectively. WebThe 5 th and 7 th harmonics order current produces a resultant flux distribution in the air gap that can cause a phenomenon called cogging( Refusal to start smoothly or crawl ... A major effect of harmonic voltage and current in an induction motor is increased heating due to increased iron and copper losses at the harmonic frequencies. This ...
Why is the air gap in a synchronous machine larger than in an induction …
WebSep 1, 2008 · In the machines that are designed for speeds above 3000 min-1 (which can be reached with the 50 Hz network), the air-gap length has to be increased considerably from the value obtained for a... WebIn an induction motor if air-gap is increased (a) the power factor will be low (b) windage losses will be more (c) bearing friction will reduce (d) copper loss will reduce. SHOW ANSWER. 6. When R 2 is the rotor resistance. X 2, the rotor reactance at ... simplicity\u0027s 2x
In an induction motor, if the air gap is increased - Testbook
WebDec 1, 1995 · An induction motor rotor is composed of short-circuited windings, and a current is induced in the rotor windings when the rotating magnetic field cuts through them. ... the net magnetic flux in the air gap will decrease, since the armature increase opposes the field flux. ... If the G2 operator does not increase the G2 field, G2 will draw its ... WebIn an induction motor if the air gap is increased than which of the following statement is correct Speed will decrease Power factor will decrease Power factor will increase Speed will increase; This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. ... WebThe flux in the air gap of the motor is governed by the stator voltage and frequency. The variation in one parameter alone will lead to an increase/decrease of stator flux that deteriorates the performance of an induction motor in terms of delivery of rated torque as the torque of the motor is directly proportional to the flux. simplicity\u0027s 2w