453-0506/02 – Electrical Machines (ES)

Gurantor departmentDepartment of Electrical Machines and ApparatusCredits6
Subject guarantorIng. Václav Čech, Ph.D.Subject version guarantorIng. Václav Čech, Ph.D.
Study levelundergraduate or graduateRequirementChoice-compulsory
Year2Semesterwinter
Study languageCzech
Year of introduction2007/2008Year of cancellation2009/2010
Intended for the facultiesFEIIntended for study typesBachelor
Instruction secured by
LoginNameTuitorTeacher giving lectures
BER30 Ing. Petr Bernat, Ph.D.
C1E18 Ing. Václav Čech, Ph.D.
HRB10 doc. Ing. Pavel Hrbáč, Ph.D.
KAC37 Ing. Petr Kačor, Ph.D.
MAR47 Ing. Martin Marek, Ph.D.
MIS01 prof. Ing. Stanislav Mišák, Ph.D.
OLS10 Ing. Jindřich Olšanský
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Credit and Examination 3+3
Combined Credit and Examination 12+12

Subject aims expressed by acquired skills and competences

The course objectives is to master theory of transformers and asynchronous machines, their properties and utilization. Then to master basic measurements of operation characteristics of machines.

Teaching methods

Lectures
Tutorials
Experimental work in labs
Other activities

Summary

In the course students become familiar with dividing ot electric machines, with electrical materials and basic laws for electric machines. Basic principles of transformers and asynchronous machines and their operation characteristics are discussed. Students become familiar also with basic rules of winding. During laboratory excercises the operation states of electric machines are measured.

Compulsory literature:

Hindmarsh,J.: Electrical Machines and their Applications, Oxford,1970

Recommended literature:

Keppert, S., Čermák, T.: Transformátory, skriptum VŠB Ostrava, 1984 Keppert, S.: Asynchronní stroje, skriptum VŠB Ostrava, 1984 Petrov,G.N.: El. stroje 1 a 2, ACADEMIA 1980 Bašta J. a kol.: Teorie el. strojů, SNTL/ALFA 1968 Hindmarsh,J.: Electrical Machines and their Applications, Oxford,1970

Way of continuous check of knowledge in the course of semester

Conditions for credit: Classification on points Participation on laboratory excercises All protocols of laboratory works Test results

E-learning

Další požadavky na studenta

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

Lectures: Types of electric machines. Materials used by electric machines design. Enclosure, shape and cooling. Laws, equations and methods used in electric machines. Principle and description of transformer. Operation states. Equivalent circuit. Phasor diagram. Three-phase transformers. Winding connection. Operation in parallel. Special types of transformers. Magnetic field of electric machines. Types and function of winding. Use of induction machines. Design types and foundation dates. Function and operation state. Energy recapitulation of induction machines. Equivalent circuit. Torque. Starting and speed control of induction motors. Induction generator and brake. Single phase induction motors. Synchronous machines. Use and designing arrangement. Function. Operation states and properties. Solitary operation. Parallel operation with network. Synchronization conditions. Synchronous motors and compensators. Stability of synchronous machines. DC machines principles. No load and loaded state of DC machine. Theory of commutation. Properties and use of DC motors. Types of DC machines. Excitation. DC machine torque.Principle and operation of AC commutator machines. Exercises: Calculation excercise of transformers. Calculation excercise of asynchronous machines. Calculation excercise of synchronous machines. Calculation excercise of direct current machines. Laboratories: Familirization with laboratory practice, safety training, mark condition Transformer measurement(no-load, short-circuit). Measurement by three-phase transformer winding connection. No-load test and locked-rotor test of asynchronous motor and load test of asynchronous motor. No-load and short-circuit test of synchronous machine. V-curves test. Test Accreditation. Projects: Project consists of elaboration of protocols from laboratory excercises, with values, diagrams and evaluation of results.

Conditions for subject completion

Combined form (validity from: 1960/1961 Summer semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Exercises evaluation and Examination Credit and Examination 100 (100) 51
        Exercises evaluation Credit 45 (45) 0
                Laboratory work Laboratory work 25  0
                Written exam Written test 20  0
        Examination Examination 55 (55) 0
                Oral Oral examination 55  0
Mandatory attendence parzicipation:

Show history

Occurrence in study plans

Academic yearProgrammeField of studySpec.FormStudy language Tut. centreYearWSType of duty
2009/2010 (B2649) Electrical Engineering (3907R001) Electrical Power Engineering P Czech Ostrava 2 Choice-compulsory study plan
2009/2010 (B2648) Designing of Electric Devices P Czech Ostrava 3 Compulsory study plan
2009/2010 (B2649) Electrical Engineering (3907R001) Electrical Power Engineering K Czech Ostrava 2 Choice-compulsory study plan
2009/2010 (B2648) Designing of Electric Devices K Czech Ostrava 3 Compulsory study plan
2008/2009 (B2649) Electrical Engineering (3907R001) Electrical Power Engineering P Czech Ostrava 2 Choice-compulsory study plan
2008/2009 (B2649) Electrical Engineering (3907R001) Electrical Power Engineering K Czech Ostrava 2 Choice-compulsory study plan
2008/2009 (B2648) Designing of Electric Devices P Czech Ostrava 3 Compulsory study plan
2008/2009 (B2648) Designing of Electric Devices K Czech Ostrava 3 Compulsory study plan
2007/2008 (B2649) Electrical Engineering (3907R001) Electrical Power Engineering P Czech Ostrava 2 Choice-compulsory study plan
2007/2008 (B2649) Electrical Engineering (3907R001) Electrical Power Engineering K Czech Ostrava 2 Choice-compulsory study plan
2007/2008 (B2648) Designing of Electric Devices (2648R999) Společné studium P Czech Ostrava 3 Compulsory study plan
2007/2008 (B2648) Designing of Electric Devices (2648R999) Společné studium K Czech Ostrava 3 Compulsory study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner