Q5. Describe, with the aid of a sketch, an electronic soft starting system that may be used for large a.c. induction motors. (10)
Q9. With reference to voltage variation profiles caused by load changes imposed on alternating current generators when starting large motors online:
(a) sketch a voltage dip, showing an acceptable recovery time; (2)
(b) state FOUR salient factors that cause the variation in part (a); (4)
(c) outline FOUR salient factors that assist recovery from the deviation shown in part (a). (4)
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