1 Material to Review for Final EE 340 Spring 2011 Y. Baghzouz 2 Power definitions and their relationships (P, Q, S, S, I, V, PF, Z) Power factor correction by shunt capacitors Per-unit system including change of base 3 Transformers Measurement of series and shunt impedances, Equivalent circuit (r.p.s. or r.s.s) Efficiency and voltage regulation Load Tap Changing 4 Transmission Line Series impedance, shunt admittance Equivalent circuit (ABCD parameters) Voltage and current relations Voltage regulation and efficiency Real and reactive power flow Long line compensation (series & shunt) 5 Synchronous Generators Equivalent circuit parameters Synchronization with the grid Control of active and reactive power Voltage regulation Efficiency 6 Electric Load and Induction Motors General load Model (ZIP model, P or Q = aV2+bV+c) Induction motor equivalent circuit Power loss and efficiency Torque characteristics Relation of motor current and power factor with load (or slip) 7 Economic Dispatch Economic solution in lossless systems with generator power limit constraints 8 Power system represention Conversion of one-line diagram to equivalent circuit Per-unit conversion Y-Bus Matrix Injected currents and node voltages 9 Power flow Given a power flow solution, determine System efficiency and power loss in various components MW and MVAR flow Voltage regulation by LTC and shunt capacitors 10 Symmetrical Faults Subtransient, transient and steady-state reactance, currents and voltages, time constants, DC component. Read Section 12. 1 including examples. 11 Additional Info. Bring calculator, book, notes, old tests and quizzes The old tests & quizzes will be collected after the exam! The final will consist of 30-35 multiple choice questions. Good Luck!