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How is the flux distributed in the field form?
Answer: d Explanation: The flux in passing from poles into the armature, does not confine itself over the pole arc but spreads out over the entire pole pitch. The flux will distribute itself in the air gap in such a way that the total reluctance is minimum.
Answer: d
See lessExplanation: The flux in passing from poles into the armature, does not confine itself
over the pole arc but spreads out over the entire pole pitch. The flux will distribute itself in the air gap in such a way that the total reluctance is minimum.
The plot of the flux density distribution curve is between the interpolar axis consisting of the flux density and the angle difference between phases.
Answer: a Explanation: The flux density distribution curve is used to calculate the magnetizing current in the non sinusoidal flux distribution of the distributed windings. The curve is between the flux density and the phase angle.
Answer: a
See lessExplanation: The flux density distribution curve is used to calculate the magnetizing
current in the non sinusoidal flux distribution of the distributed windings. The curve is between the flux density and the phase angle.
What is the relation of the magnetizing current with the turns per phase?
Answer: c Explanation: The magnetizing current is actually calculated for the concentrated windings and the distributed windings. In the distributed windings, magnetizing current is indirectly proportional to the turns per phase.
Answer: c
See lessExplanation: The magnetizing current is actually calculated for the concentrated
windings and the distributed windings. In the distributed windings, magnetizing current is indirectly proportional to the turns per phase.
What is the relation of the type of winding with the flux linkage?
Answer: a Explanation: The magnetizing current is actually calculated for the concentrated windings and the distributed windings. In the distributed windings, the flux does not link with all the turns.
Answer: a
See lessExplanation: The magnetizing current is actually calculated for the concentrated
windings and the distributed windings. In the distributed windings, the flux does not link with all the turns.
What is the formula for the rms value of the magnetizing current?
Answer: a Explanation: The maximum value of the magnetizing current and the peak factor are calculated first. On substitution, the rms value of the magnetizing current is obtained.
Answer: a
See lessExplanation: The maximum value of the magnetizing current and the peak factor are
calculated first. On substitution, the rms value of the magnetizing current is obtained.
What is the formula for the magnetizing current?
Answer: b Explanation: First the total mmf is calculated along with the number of turns of the magnetizing winding. Then on substitution the magnetizing current is obtained.
Answer: b
See lessExplanation: First the total mmf is calculated along with the number of turns of the
magnetizing winding. Then on substitution the magnetizing current is obtained.
What is the relation between the specific permeance of a differential path and the length?
Answer: b Explanation: The specific permeance is defined as the permeance per unit length. It is indirectly proportional to the length
Answer: b
See lessExplanation: The specific permeance is defined as the permeance per unit length. It is
indirectly proportional to the length
How many factors does the value of the magnetizing current depends upon?
Answer: b Explanation: There are 3 factors upon which the magnetizing current depends upon. They are total mmf required, number of turns in the exciting winding and upon the way in which the winding is distributed.
Answer: b
See lessExplanation: There are 3 factors upon which the magnetizing current depends upon.
They are total mmf required, number of turns in the exciting winding and upon the way in which the winding is distributed.
What is the formula of the flux dividing into infinitesimal parts?
Answer: b Explanation: The mmf producing the flux and the permeance of infinitesimal part is calculated. On substitution the flux dividing into infinitesimal parts is calculated.
Answer: b
See lessExplanation: The mmf producing the flux and the permeance of infinitesimal part is
calculated. On substitution the flux dividing into infinitesimal parts is calculated.
What is the formula of the effective permeance?
Answer: a Explanation: The effective flux and the total mmf is first calculated. On substitution of the values the effective permeance is calculated.
Answer: a
See lessExplanation: The effective flux and the total mmf is first calculated. On substitution of the values the effective permeance is calculated.