If the rotor is turning near the cyclic speed of the induced rotating electromagnetic field in the primary under no-load conditions, the interaction of the primary and secondary electromagnetic fields is _______________ .
Because the low frequency of the induced voltage and the resulting current flow in the rotor circuit are both of ___________ value, the impedance reflected into the primary appears as an open secondary in a transformer — very ___________ value.
The current drawn in the primary (stator) windings, because of the value of the reflected impedance, is also of _______________ value.
A) none of the answers
B) minimal; high; low; maximum
C) maximum; high; low; maximum
D) minimal; low; high; minimum
Show Answer
Answer:D
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