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What is the range for the ratio of the resistance to reactance in the split phase motors?
Answer: b Explanation: The range for the ratio of the resistance to reactance in the split phase motors is 0.45-0.55. The range for the ratio of the resistance to reactance in the capacitor start motors is 0.45-0.8.
Answer: b
Explanation: The range for the ratio of the resistance to reactance in the split phase
motors is 0.45-0.55. The range for the ratio of the resistance to reactance in the
capacitor start motors is 0.45-0.8.
See lessWhat is the formula for the resistance of running winding?
Answer: d Explanation: First the no of turns in running winding along with length of mean turns of running winding and area of running winding conductor is calculated. On substitution the resistance of running winding is calculated.
Answer: d
Explanation: First the no of turns in running winding along with length of mean turns of
running winding and area of running winding conductor is calculated. On substitution the
resistance of running winding is calculated.
See lessHow many parameters are present under the leakage reactance calculations?
Answer: c Explanation: There are 7 parameters present under the leakage reactance calculations. They are slot leakage reactance, rotor slot leakage reactance, zigzag leakage reactance, overhang leakage reactance, skew leakage reactance, magnetizing reactance, total leakage reactance.
Answer: c
Explanation: There are 7 parameters present under the leakage reactance calculations.
They are slot leakage reactance, rotor slot leakage reactance, zigzag leakage
reactance, overhang leakage reactance, skew leakage reactance, magnetizing
reactance, total leakage reactance.
See lessHow is the winding arrangement and how is the conductors in each slot?
Answer: d Explanation: The winding of the induction motors are concentric type. The different conductors are being used in each slot
Answer: d
Explanation: The winding of the induction motors are concentric type. The different
conductors are being used in each slot
See lessWhat is the relation of the total slot leakage reactance with number of stator slots?
Answer: b Explanation: The slot leakage reactance is one of the parameters used in the leakage reactance calculations. The slot leakage reactance is indirectly proportional to the number of stator slots.
Answer: b
Explanation: The slot leakage reactance is one of the parameters used in the leakage
reactance calculations. The slot leakage reactance is indirectly proportional to the
number of stator slots.
See lessHow many design steps are available for the design of rotor?
Answer: b Explanation: There are 6 design steps involved in the design of the rotor. They are number of rotor slots, area of rotor bars, area of end rings, rotor resistance, rotor teeth, rotor core.
Answer: b
Explanation: There are 6 design steps involved in the design of the rotor. They are
number of rotor slots, area of rotor bars, area of end rings, rotor resistance, rotor teeth,
rotor core.
See lessWhat is the main motive while choosing the number of rotor slots?
Answer: c Explanation: There are basically 6 steps involved in the rotor design. The number of slots is chosen such that no noise is produced.
Answer: c
Explanation: There are basically 6 steps involved in the rotor design. The number of
slots is chosen such that no noise is produced.
See lessWhat is the formula for the harmonic poles due to slots?
Answer: a Explanation: First the number of slots and number of poles are first calculated. On substitution we get the harmonic poles due to the slots.
Answer: a
Explanation: First the number of slots and number of poles are first calculated. On
substitution we get the harmonic poles due to the slots.
See lessWhich condition satisfies the quiet operation in machines?
Answer: b Explanation: The number of rotor slots are decided for quieter operation of the machine. The number of rotor slots differs from the number of stator slots by more than the number of poles.
Answer: b
Explanation: The number of rotor slots are decided for quieter operation of the machine.
The number of rotor slots differs from the number of stator slots by more than the
number of poles.
See lessWhat among the following are considered for the selection of number of rotor slots?
Answer: d Explanation: The selection of number of rotor slots depends on the magnetic locking. The selection of number of rotor slots depends on the cusps also.
Answer: d
Explanation: The selection of number of rotor slots depends on the magnetic locking.
The selection of number of rotor slots depends on the cusps also.
See less