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6.3 Static Machines: Active Elements
6.3 Static Machines: Active Elements
In general terms, active parts highlight in static machines, specially the windings and the components of a toroid-core transformer (Fig. 6.6). It highlights the primary and secondary windings, as well as the transformer core.
Fig. 6.6 Both circuits in a transformer. Source From wikicommons under free to use license [6]
练习题
What are the primary active parts highlighted in static machines according to the text?
A. Rotors and stators with rotating components
B. Windings and the components of a toroid-core transformer
C. Cooling systems and ventilation fans
D. Bearings and mechanical shafts
Which of the following correctly lists the main components of a toroid-core transformer?
A. Rotor, stator, and commutator
B. Primary winding, secondary winding, and transformer core
C. Field coil, armature, and brushes
D. Input terminal, output terminal, and cooling fan
Which of the following are components of a toroid-core transformer as described in the text?
A. Primary winding
B. Secondary winding
C. Transformer core
D. Rotating armature
E. Commutator assembly
Windings are considered active parts in static machines such as transformers.
The transformer core is a type of secondary winding in a toroid-core transformer.
Figure 6.6 illustrates that a transformer contains two separate electrically isolated circuits that are magnetically coupled through the core.
The main components of a toroid-core transformer include the primary and secondary ___ as well as the transformer core.
Explain what is meant by 'both circuits' in a transformer as referenced in Figure 6.6.
Since transformers are static machines where all parts remain stationary during operation, their active parts include windings rather than rotating components.
A transformer is classified as a static machine because it has no moving parts during operation. What are its main active components?
A. Rotating armature and stationary field coils
B. Primary winding, secondary winding, and transformer core
C. Commutator and brush assembly
D. Stator and rotor assemblies
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