Q4.(a) The water utility requested a supply from the electric utility to one of their newly built pump houses. The pumps
Posted: Thu May 05, 2022 3:08 pm
- Q4 A The Water Utility Requested A Supply From The Electric Utility To One Of Their Newly Built Pump Houses The Pumps 1 (81.4 KiB) Viewed 18 times
(i-iv), Thank You!!
Q4.(a) The water utility requested a supply from the electric utility to one of their newly built pump houses. The pumps require a 400V three phase and 230V single phase supply. The load detail submitted indicates a total load demand of 180 kVA. As a distribution engineer employed with the electric utility, you are asked to consult with the customer before the supply is connected and energized. i) With the aid of a suitable, labelled circuit diagram, explain how the different voltage levels are obtained from the 12kV distribution lines. (7 marks) ii) State the typical current limit for this application, calculate the corresponding KVA limit for the utility supply mentioned in part i) and inform the customer of the repercussions if this limit is exceeded. (7 marks) iii) What option would the utility provide the customer for metering based on the demand given in the load detail? (3 marks) iv) What metering considerations must be made if this load demand increases by 100% in the future? (2 marks)