Q9. With reference to automatic Power Management Systems for the control of the operation of main switchboards and generators:
(a) list the features that the Power Management System controls in order to comply with the requirements for a vessel; (7)
(b) explain how the generators and switchboard would be controlled following a failure of the Power Management System. (3)
Q10. Describe, with the aid of a block diagram, the operation of a load sensing electronic governor controller for an a.c. generator. (10)
Q11. With reference to a THREE phase electrical distribution system:
(a) discuss the advantages and disadvantages of an insulated neutral system; (8)
(b) state how an earthed neutral system is earthed and the measures taken to limit the maximum earth fault current. (2)
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