A simple power system diagram is given below. The system consists of a 120/0 volt generator connected to an ideal 1:5 step up transformer, a transmission ine, and ideal 10:1 step down transformer and a load. The impedance of the transmission line is 10 + j20, and the impedance of the load is 4+j2 ohms. The base values for the system are chosen to be 120 volts and 10 KVA at the generator. a) Solve for the generator current lg using the per unit system. Do show your calculated per unit diagram. b) Solve for the value of the load voltage from the per unit system circuit. 71 10 n 20n T: 10:1 ZLOAD = 4 + j2 120g load

A simple power system diagram is given below. The system consists of a 120/0 volt generator connected to an ideal 1:5 step up transformer, a transmission ine, and ideal 10:1 step down transformer and a load. The impedance of the transmission line is 10 + j20, and the impedance of the load is 4+j2 ohms. The base values for the system are chosen to be 120 volts and 10 KVA at the generator. a) Solve for the generator current lg using the per unit system. Do show your calculated per unit diagram. b) Solve for the value of the load voltage from the per unit system circuit. 71 10 n 20n T: 10:1 ZLOAD = 4 + j2 120g load

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter12: Power System Controls

Section: Chapter Questions

Problem 12.13P

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