When power is applied to the stator, an expanding magnetic field is created that cuts across the rotor conductor bars and induces current in the rotor. This is the basic principle of which of the following?
Which of the following is the synchronous speed for a four-pole 60Hz induction motor?
You can typically increase motor efficiency by 5% by using a permanent magnet synchronous motor instead of an induction motor?
How far apart are the phase windings (electrical degrees) in a three-phase induction motor?
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Q: When power is applied to the stator, an expanding magnetic field is created that cuts across the rotor conductor bars and induces current in the rotor. This is the basic principle of which of the following?
A: Magnetism
Q: When power is applied to the stator, an expanding magnetic field is created that cuts across the rotor conductor bars and induces current in the rotor. This is the basic principle of which of the following?
A: Electromagnetism
Q: When power is applied to the stator, an expanding magnetic field is created that cuts across the rotor conductor bars and induces current in the rotor. This is the basic principle of which of the following?
A: Induction
Q: When power is applied to the stator, an expanding magnetic field is created that cuts across the rotor conductor bars and induces current in the rotor. This is the basic principle of which of the following?
A: Flux density
Q: Which of the following is the synchronous speed for a four-pole 60Hz induction motor?
A: 1,200 rpm
Q: Which of the following is the synchronous speed for a four-pole 60Hz induction motor?
A: 1,800 rpm
Q: Which of the following is the synchronous speed for a four-pole 60Hz induction motor?
A: 3,000 rpm
Q: Which of the following is the synchronous speed for a four-pole 60Hz induction motor?
A: 3,600 rpm
Q: You can typically increase motor efficiency by 5% by using a permanent magnet synchronous motor instead of an induction motor?
A: True
Q: You can typically increase motor efficiency by 5% by using a permanent magnet synchronous motor instead of an induction motor?
A: False
Q: The stator magnetic field in a single-phase motor does not rotate?
A: True
Q: The stator magnetic field in a single-phase motor does not rotate?
A: False
Q: How far apart are the phase windings (electrical degrees) in a three-phase induction motor?
A: 45 degrees
Q: How far apart are the phase windings (electrical degrees) in a three-phase induction motor?
A: 90 degrees
Q: How far apart are the phase windings (electrical degrees) in a three-phase induction motor?
A: 180 degrees
Q: How far apart are the phase windings (electrical degrees) in a three-phase induction motor?
A: 120 degrees
Q: Permanent magnet synchronous motors are more efficient than induction motors due to a change in which major motor component?
A: Stator
Q: Permanent magnet synchronous motors are more efficient than induction motors due to a change in which major motor component?
A: Rotor
Q: Permanent magnet synchronous motors are more efficient than induction motors due to a change in which major motor component?
A: Bearings
Q: Permanent magnet synchronous motors are more efficient than induction motors due to a change in which major motor component?
A: Fan