Erasmus ECTS Information Package

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Erasmus ECTS Information Package Faculty of EEEA 3235 High Voltage Technique ECTS credits: 5 Weekly classes: 2lec+1sem+1labs+0ps+1ca Assessment: exam Type of exam: written and oral Departments involved: Department of Electrical Power Engineering Faculty of Electrical Engineering, Electronics and Automation Lecturers: Assoc. Prof. Kyril Aleksandrov Sirakov, MEng, PhD, Dept. of Electrical Power Engineering, tel.: 082 888 364, E-mail: csirakov@uni-ruse.bg Principal Assistant Anka Hristova Krasteva, MEng, PhD, Dept. of Electrical Power Engineering, tel.: 082 888 301,E-mail: akrasteva@uni-ruse.bg Abstract: The subject includes: mechanism of the progress of discharge and pierces in gaseous, solid and liquid dielectrics; kinds of voltage, reasons for their advent and their impact on technical devices and biological objects; technical instruments for protection from over voltage. The students receive theoretical and practical knowledge needed for the design and exploitation of the electro-energetic system and its elements. Course pre-requisites include Electrical materials, Theoretical electrical engineering, Electrical networks and systems and others. The course outcomes are connected with subjects as Electric part of the power plants, Relay protection, Electrical power supply, Diploma thesis. Course content: Sources for high voltage. Mechanism of the electric discharge in gases. Electrical catenary. Corona during high voltage. Discharge in gaseous, solid and combined isolation. Electric wave transitional processes. Breakdown voltage. Atmospheric over voltages, lightning and lightning protection. Protection from over voltages. Coordination of the isolation. Teaching and assessment: Teaching is based on lectures and laboratory exercises. The laboratory exercises are conducted at an interval of two weeks and last two academic hours. The first exercise is preceded by safety instructions for working with high voltage devices. Continuous assessment is done through examining the students before the particular exercise and students are then expected to submit a report on the exercise. The exam is based on two questions from the lecture material supplemented by an oral exam on some of the main problems of the subject. 3236 Electrical Machines 2 ECTS credits: 7 Weekly classes: 3lec+0sem+3labs+0ps+2cw Assessment: exam Type of exam: written Departments involved: Department of Electrical Power Engineering Faculty of Electrical Engineering, Electronics and Automation Lecturers: Assoc. Prof. Dimo Nejkov Dimov, MEng, PhD, Dept. of Electrical Power Engineering, tel.: 082 888 659, E-mail: dnd@uni-ruse.bg Abstract: The subject has the objective to acquaint the students with the induction and synchronous machines arrangement, principle action, theory, characteristics and research methods. Input links include: Higher Mathematics, Physics, Theory of Electrical Engineering and Electrical Machines 1. Output links include: Automatic Electric Drive, Electrical Equipment and Electrical Transport. Course content: General issues of the alternative current machines theory: windings, electromotive force, magnetomotive force, magnetic fields and inductive reactance of the alternative current windings. Induction machines arrangement and principle action. Modes of operation. Circuit and vector diagrams. Electromagnetic torque. Starting and speed control. Special types of induction machines. Synchronous machine arrangement and principle action. Types. Modes of operation. Synchronous generators. Vector diagrams. Work in parallel. Angular characteristics. Static stability. Synchronous motors. Starting. Special types of synchronous machines. Collector alternating current motors. Teaching and assessment: The theoretical basic issues on all topics from the syllabus, presented at the lectures, are further practiced during the laboratory exercises. Learning practice consists also of preparing course work. The students must prepare for the laboratory exercise in advance. The exam is conducted in written form and consists of three subject questions. The final exam mark depends on the mark received for the laboratory exercises and course work that is submitted before the beginning of the exam session. 67
Erasmus ECTS Information Package Faculty of EEEA 3237 Electrical Apparatuses ECTS credits: 7 Weekly classes: 3lec+0sem+3labs+0ps+1ca Assessment: exam Type of exam: written Departments involved: Department of Electrical Power Engineering Faculty of Electrical Engineering, Electronics and Automation Lecturers: Prof. Kondju Jordanov Andonov, MEng, PhD, DSc, Dept. of Electrical Power Engineering, tel.: 082 888 749, Е-mail: kandonov@uni-ruse.bg Assoc. Prof. Krasimir Velikov Martev, MEng, PhD, Dept. of Electrical Power Engineering, tel.: 082 888 749, 082 888 280, Е-mail: kmartev@uni-ruse.bg Abstract: The suggested course discuses questions connected with the theory of electrical machinery for high and low voltages, their purpose, types, structure, choice and tuning. Both Bulgarian and foreign (imported) electrical machinery are taken into consideration. Course pre-requisites: physics, electro-technical materials, electrical machines, heat engineering and heat energetic, theoretical electrical engineering, electronics, electrical measurements. The course has connections with: Electric equipment, electric energy supply, electrical part of power stations, relay protection, graduation design. Course content: Classification of the electrical machinery. Electrical contacts, electric arc, electromagnetic circuits. Attracting forces. Electric insulation. Heating. Electrical machinery for distribution systems for low and high voltage. Automatic breakers for low and high voltage. Electrical machinery for protection and control in low and high voltage installations. Controllers, end and path micro breakers. No contact and hybrid electrical machinery. Electromagnetic connectors. Load lifting electromagnets. Sensors. Electrical relays – electronic, electromagnetic, time relays, photo relays, etc. Teaching and assessment: The lectures are delivered to the students at the beginning of the term in hard copy and electronic format. Discussions of themes include use of technical means as projectors and other media, and materials from commercial companies (prospects, leaflets, etc.). During the laboratory exercises students use personal computers. Each exercise is provided with methodological instructions and appropriate laboratory model. The exam includes two questions to be answered in written form and oral discussion. 3238 Electrical Part of Power Stations ECTS credits: 7 Weekly classes: 3lec+1sem+2labs+0ps Assessment: exam Type of exam: written and oral Departments involved: Department of Electrical Power Engineering Faculty of Electrical Engineering, Electronics and Automation Lecturer: Assoc. Prof. Liudmil Dosev Mihaylov, MEng, PhD, Dept. of Electrical Power Engineering, tel.: 082 888 616 Е-mail: lmihaylov@uni-ruse.bg Abstract: With the suggested course, the students gain knowledge needed to design and use the electrical part of power stations. Course pre-requisites include Higher mathematics, Electro technical materials, Theoretical electrical engineering, Electrical machines, Electrical measurements, Electrical safety, Electrical apparatuses, Electricity supply networks and systems and Technique of higher voltages and short circuits. The course has connections with Electrical part of power stations – course work, Relay protection, Electric equipment, Electricity supply, Electricity supply networks in living areas. Course content: Production of electric energy. Exploitation regimes of work for distribution systems. Heating and electrodynamics of current-carrying parts and machines. Power transformers and autotransformers. Electrical machinery for high voltage in distribution systems. Electrical schemes, construction and structure of distribution systems. Teaching and assessment: Teaching is based on the use of classical pedagogical forms. The discussion of themes includes the use of media and materials from commercial companies (prospects, leaflets, etc.).The duration of the majority of the laboratory exercises is two academic hours. Calculation of the experimental results and design of the scientific report is done at the end of the exercise and if necessary is finished later. Continuous assessment in the discipline is based on the answers of the students during the laboratory exercises. 68
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Erasmus ECTS Information Package

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