An induction motor and synchronous motor are connected to a common feeder line. To operate the feeder line at unity pf, the synchronous motor should be
A. under-excited.
B. over-excited.
C. normally excited.
D. disconnected from the common terminals. [I.E.S. E.E.-II 2000]
Answer:B
An induction motor and synchronous motor are connected to a common feeder line. To operate the feeder line at unity pf, the synchronous motor should be
A. under-excited. B. over-excited. C. normally excited. D. disconnected from the common terminals. [I.E.S. E.E.-II 2000]