## ELECTRICAL POWER SYSTEMS II

Course Code:
63423
Course Outline:
 ELECTRICAL POWER SYSTEMS II-63482 ELECTRICAL ENGINEERING Semester Teaching Methods Credits 8 Lecture Rec. Lab. Project Work HW Other Total Credit ECTS Credit 44 - - 20 20 16 100 3 4 Language English Compulsory / Elective Compulsory Prerequisites (63481) Course Contents Load flow control. Economic operation of power systems. Symmetrical three-phase faults. Symmetrical components. Unsymmetrical faults. Course Objectives To introduce load flow analyses and control of real networks to achieve the desired voltage level and power losses. To introducethree phase symmetrical faults. To teach unsymmetrical fault analyses employing symmetrical components. Learning Outcomes and Competences Learning power systems control by reactive power compensation and transformers .Understanding unsymmetrical fault analyses. Understanding the economical distribution of load in a power system. Textbook and /or References Elements of power system analyses. William D. Stevenson, J. McGraw-Hill, 1982. Power system analysis: John J Grainger and William D. Stevenson, J. R. McGraw-Hill, 1994. Principles of power system. V.K.Mehta, and Rohit Mehta. S.CHAND & COMPANY LTD.2005. Assessment Criteria If any, mark as (X) Percent (%) Midterm Exams X 30 Quizzes Home works X 10 Projects X 10 Term Paper Laboratory Work Other Final Exam X 50 Instructors Assist. Prof. Dr. Maher Khammash, maherkh@najah.edu Week Subject 1 LOAD FLOW SOLUTIONS AND CONTROL: Digital-computer studies of load flow. Control of power into a network. Capacitor banks. Control by transformers. 2 LOAD FLOW SOLUTIONS AND CONTROL: Applications. 3 ECONOMIC OPERATION OF POWER SYSTEMS: Distribution of load between units within a plant. Transmission losses as a function of plant generation. Distribution of load between plants. A method of computing penalty factors and loss coefficients. 4 SYMMETRICAL THREE PHASE FAULTS: Transients in RL series circuits, internal voltages of loaded machines under transient conditions. The bus impedance matrix in fault calculations. 5 SYMMETRICAL THREE PHASE FAULTS: A bus impedance matrix equivalent network.  The selection of circuit breakers. Solving different problems. 6 MIDTERM EXAM I 7 SYMMETRICAL COMPONENTS: Syntheses of unsymmetrical phasors for their symmetrical components. Operators. The symmetrical components of unsymmetrical phasors. 8 SYMMETRICAL COMPONENTS: Phase shift of symmetrical components in Y-Δ transformer banks. Power in terms of symmetrical components. Unsymmetrical series impedances. 9 SYMMETRICAL COMPONENTS: Sequence impedances and sequence networks. Positive and negative-sequence networks. Zero-sequence networks. Solving different problems. 10 UNSYMMETRICAL FAULTS: Single line-to ground fault on unloaded generator. Line –to-line fault on unloaded generator. Tutorial problems. 11 UNSYMMETRICAL FAULTS: Double line –to-ground fault on unloaded generator. Unsymmetrical faults on power systems. 12 UNSYMMETRICAL FAULTS: Analyses of unsymmetrical faultsusing the bus impedance matrix. Faults through impedance. Computer calculations of fault currents. 13 FAULT CALCULATIONS OF POWER SYSTEMS:Tutorial problems. 14 MIDTERM EXAM II