The transformed signal x(ct + d) will be reversed on time if: Select one: d = 0 d = 1 2 C 12 12 12 d = C =

Discuss typical structure of the modern electrical grid. Include all elements and provide short description of their role in the system

Q5. Predictive maintenance is to be applied to an industrial conveying system. a) Discuss and illustrate the difference between reactive, preventative, and predictive maintenance. b) Describe several of the techniques that could be used to develop a predictive maintenance system for the conveyor system. Consider some of the sensing techniques that might be used and what parameters might be measured to detect component degradation. c) If the predictive maintenance system described in b) detects that the conveyor system is vibrating abnormally, discuss what condition this could indicate and what maintenance might be required.

a. Description of lamp-ballast system b. Choose the power rating of T8 fluorescent lamp to be used in the system c. The operation of lamp-ballast circuit d. The modelling of the lamp-ballast by an equivalent circuit e. The design of inductance of the choke of the lamp-ballast system f. Determine the supply current and power factor g. Decide the desire power factor to be achieved and state the reason for the chosen of that value of power factor h. The design of size of capacitor for power factor correction. i. Team members information