By connecting reactances at the slip-ring leads of a rotary convertor operating at a lead big power factor, the output dc voltage can be raised if
A. the pf is made less leading by reducing the excitation.
B. the pf is made more leading by increasing the excitation.
C. the pf is made more leading by reducing the excitation.
D. the pf is made less lagging by increasing the excitation.
Show Answer
Answer: B
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