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How many factors are present in the operating characteristics?
Answer: c Explanation: There are 4 operating characteristics present in the single phase induction motor. They are mmf for air gap, saturation factor, iron loss, friction and windage loss
Answer: c
Explanation: There are 4 operating characteristics present in the single phase induction
motor. They are mmf for air gap, saturation factor, iron loss, friction and windage loss
See lessHow many parts does the stator mmf passes through?
Answer: c Explanation: The stator mmf produced in the motor passes through 5 parts. They are air gap, stator teeth, stator core, rotor teeth, rotor core.
Answer: c
Explanation: The stator mmf produced in the motor passes through 5 parts. They are air
gap, stator teeth, stator core, rotor teeth, rotor core.
See lessWhat is the angle at which the value of the flux density should be for the calculation of mmf?
Answer: b Explanation: The calculation of mmf should be based upon the value of the flux density. The value of flux density at 60° from the interpolar axis as far as gap and teeth are concerned.
Answer: b
Explanation: The calculation of mmf should be based upon the value of the flux density.
The value of flux density at 60° from the interpolar axis as far as gap and teeth are
concerned.
See lessWhat is the value of the flux density with respect to average flux density?
Answer: a Explanation: The value of flux density at 60° from the interpolar axis as far as gap and teeth are used in the calculation of mmf. The value of flux density = 1.67 times of average flux density
Answer: a
Explanation: The value of flux density at 60° from the interpolar axis as far as gap and
teeth are used in the calculation of mmf. The value of flux density = 1.67 times of
average flux density
See less.What is the formula for the mmf required for air gap?
Answer: b Explanation: The air gap flux density, air gap constant, air gap length are calculated first. On substitution, the mmf required for air gap can be obtained
Answer: b
Explanation: The air gap flux density, air gap constant, air gap length are calculated first.
On substitution, the mmf required for air gap can be obtained
See lessWhat is the formula for the saturation factor?
Answer: a Explanation: The total mmf required for the magnetic circuit and the mmf required for air gap is calculated. On substitution, the saturation factor is obtained.
Answer: a
Explanation: The total mmf required for the magnetic circuit and the mmf required for air
gap is calculated. On substitution, the saturation factor is obtained.
See lessWhat is the range of the saturation factor in the single phase induction motor?
Answer: c Explanation: The minimum value of the saturation factor in the single phase induction motor is 1.1. The maximum value of the saturation factor in the single phase induction motor is 1.35.
Answer: c
Explanation: The minimum value of the saturation factor in the single phase induction
motor is 1.1. The maximum value of the saturation factor in the single phase induction
motor is 1.35.
See lessWhat is the relation between flux densities with respect to saturation factor?
Answer: d Explanation: The saturation factor is kept low if the flux densities in the teeth and core are low. The saturation factor is kept high if the flux densities in the teeth and core are high.
Answer: d
Explanation: The saturation factor is kept low if the flux densities in the teeth and core
are low. The saturation factor is kept high if the flux densities in the teeth and core are
high.
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 in the leakage reactance calculation. The slot leakage reactance is indirectly proportional to the number of rotor slots.
Answer: b
Explanation: The slot leakage reactance is one of the parameters in the leakage
reactance calculation. The slot leakage reactance is indirectly proportional to the number
of rotor slots.
See lessWhat is the relation of the stator slot leakage factor with the skew leakage reactance?
Answer: a Explanation: Skew leakage reactance is one of the parameters used in the leakage reactance calculation. The skew leakage reactance is directly proportional to the stator slot leakage reactance.
Answer: a
Explanation: Skew leakage reactance is one of the parameters used in the leakage
reactance calculation. The skew leakage reactance is directly proportional to the stator
slot leakage reactance.
See less