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How many factors are used to determine the specific electric loading?
Answer: c Explanation: There are 4 factors used to determine the specific electric loading. They are temperature rise, cooling coefficient, size of machine, current density.
Answer: c
Explanation: There are 4 factors used to determine the specific electric loading. They are
temperature rise, cooling coefficient, size of machine, current density.
See lessWhat is the relation between the output and the flux density?
Answer: a Explanation: Flux density is one of the factors used in the determination of the specific magnetic loading. The flux density is directly proportional to the output.
Answer: a
Explanation: Flux density is one of the factors used in the determination of the specific
magnetic loading. The flux density is directly proportional to the output.
See lessWhat is the relation between output and the specific electric loading?
Answer: a Explanation: The choice of specific electric loading is one of the factors under the relation between rating and dimensions of rotating machines. The specific electric loading is directly proportional to the output.
Answer: a
Explanation: The choice of specific electric loading is one of the factors under the
relation between rating and dimensions of rotating machines. The specific electric
loading is directly proportional to the output.
See lessWhat is the relation of the specific electric loading and the diameter?
Answer: b Explanation: The specific electric loading is one of the factors under the relation between rating and dimension of rotating machines. The specific electric loading is indirectly proportional to the diameter.
Answer: b
Explanation: The specific electric loading is one of the factors under the relation between
rating and dimension of rotating machines. The specific electric loading is indirectly
proportional to the diameter.
See lessWhat is the formula of the flux density in the gap at a distance ‘x’ from the centre of the pole?
Answer: b Explanation: The length of air gap at the centre of pole, the length of air gap at a distance ‘x’ from the centre of the pole and the maximum flux density in air gap is calculated. On substitution the flux density in the gap at a distance ‘x’ from the centre of the pole.
Answer: b
Explanation: The length of air gap at the centre of pole, the length of air gap at a
distance ‘x’ from the centre of the pole and the maximum flux density in air gap is
calculated. On substitution the flux density in the gap at a distance ‘x’ from the centre of
the pole.
See lessThe plot between carter’s coefficient and the relative flux density is the carter’s fringe curve.
Answer: a Explanation: Carter’s fringe curves is one of the techniques used in the plotting of the field form in the salient pole machines. The plot between carter’s coefficient and the relative flux density is called as carter’s fringe curve.
Answer: a
Explanation: Carter’s fringe curves is one of the techniques used in the plotting of the
field form in the salient pole machines. The plot between carter’s coefficient and the
relative flux density is called as carter’s fringe curve.
See lessHow many rules are to be followed while the flux plotting by method of curvilinear squares?
Answer: b Explanation: The flux lines leave and enter from surfaces, bounding the gap, at right angles if it is assumed that iron has infinite permeability as compared with air and then the flux and equipotential lines intersect at right angles. The flux and the equipotential lines are so drawn thatRead more
Answer: b
Explanation: The flux lines leave and enter from surfaces, bounding the gap, at right
angles if it is assumed that iron has infinite permeability as compared with air and then
the flux and equipotential lines intersect at right angles. The flux and the equipotential
lines are so drawn that each flux is divided into equal number of curvilinear squares.
See lessHow many factors does the flux distribution in the rotating machines depend on?
Answer: b Explanation: The flux distribution in the rotating machines depends upon 3 factors. They are shape of pole, the distribution of field windings and the load condition.
Answer: b
Explanation: The flux distribution in the rotating machines depends upon 3 factors. They
are shape of pole, the distribution of field windings and the load condition.
See lessHow should the flux distribution be in the case of ac machines?
Answer: a Explanation: The flux distribution in the case of ac machines should be sinusoidal. The flux distribution in the case of dc machines should be rectangular.
Answer: a
Explanation: The flux distribution in the case of ac machines should be sinusoidal. The
flux distribution in the case of dc machines should be rectangular.
See lessHow should the air gap and the fringing effects be if the field form of a salient pole machine is rectangular?
Answer: c Explanation: The field form of a salient pole machine is rectangular if the air gap under the pole arc is not constant. The field form of a salient pole machine is rectangular if the fringing effects are not considered.
Answer: c
Explanation: The field form of a salient pole machine is rectangular if the air gap under
the pole arc is not constant. The field form of a salient pole machine is rectangular if the
fringing effects are not considered.
See less