The negative phase sequence in a 3-phase synchronous motor exists when the motor is
A. under-loaded.
B. overloaded.
C. supplied with unbalanced voltage.
D. hot. [I.E.S. E.E.-II, 1992]
Answer:C
The negative phase sequence in a 3-phase synchronous motor exists when the motor is
A. under-loaded. B. overloaded. C. supplied with unbalanced voltage. D. hot. [I.E.S. E.E.-II, 1992]