Q2. Explain with the aid of simple circuit diagram the grounded power distribution system and isolated power distribution system. (16)
Q2. a) What is the function of insulation in an electric conductor? (3)
b) What are the various classes of insulation? (8)
c) What are the desired properties of insulating materials? (5)
Q5. With reference to the condition monitoring of electrical machinery:
(a) State TWO important parameters that may be recorded (8)
(b) Explain how the parameters are measured and what defects may be revealed (8)
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