Michael Kurniawan 2018123456 University of Cincinnati Final Exam Power Distribution & Transmission QUESTIONS 1. In the power distribution network in the United States can be classified into 2 things, name and explain the classification! 2. Draw the power distribution line diagram from 500 KV Extra High Voltage Substation to Industrial, Business, and Household customers! 3. A small factory operates with a recorded daily power of 150 KW, and the cost of electricity is 1usd /KWH. If the factory has a power factor of 0.75, then determine the amount of additional monthly bills that must be billed to the factory owner. 4. From problem no. 3, draw the power triangle with the angle included, then determine the amount of bank capacity needed to improve the power factor to 0.85! ANSWER 1. a). Primary distribution network system This network is located between the substation and the substation divider. The network has a higher voltage system than the voltage used for consumers. The voltage for this primary distribution network is 6 KV, 10 KV, and 20 KV. b). Secondary distribution network system This network serves as a distributor of electric power from substations divider (distribution substation) to the load centers (consumers of electric power). Standard voltage secondary distribution network is 127/220 V for the old system, and 229/380 V for the new system and 440/6550 V for industrial purposes. 2. Power distribution line diagram from 500 KV Extra High Voltage Substation to Industrial, Business, and Household customers. 3. Key Data : Steps : Answer : The factory owner would need to pay an additional monthly bill of $36,000 due to the low power factor of 0.75. 4. Key data : Power Triangle: Sinitial : Qinitial : Starget : Qtarget : Qc : Answer : To improve the power factor to 0.85, a capacitor bank of 39.12 kVAR is needed. Visual diagram for the triangle