Synchronous motors are not used
A. in power houses and substations in parallel to bus-bars for pf correction.
B. in factories having a large number of induction motors and other power apparatus operating at lagging power factor, for pf improvement.
C. for driving electric trains, cranes, machine tools and line shaft drives.
D. in rubber mills, textile mills, cement factories mining industries and other big industries for power applications.
E. for driving continuously operating and constant speed equipment such as centrifugal pumps, fans, blowers, ammonia and air compressors, motor generator sets etc.
Show Answer
Answer: C
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