453-0301/01 – Electrical Machines III (ES 3)

Gurantor departmentDepartment of Electrical Machines and ApparatusCredits8
Subject guarantordoc. Ing. Pavel Hrbáč, Ph.D.Subject version guarantordoc. Ing. Pavel Hrbáč, Ph.D.
Study levelundergraduate or graduateRequirementChoice-compulsory
Year2Semesterwinter
Study languageCzech
Year of introduction2003/2004Year of cancellation2009/2010
Intended for the facultiesFEIIntended for study typesMaster
Instruction secured by
LoginNameTuitorTeacher giving lectures
HRB10 doc. Ing. Pavel Hrbáč, Ph.D.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Credit and Examination 4+3
Combined Credit and Examination 14+15

Subject aims expressed by acquired skills and competences

Graduate be able measure to transient actions in electrical machines and be able to measure and weigh evidence. Students learn solve transient action in electrical machines, can calculation magnetic circuits, losses and efficiencies electrical machines. Students learn measure on electrical machines by non-sinusoidal power supply.

Teaching methods

Lectures
Tutorials
Experimental work in labs
Project work
Other activities

Summary

Course presents the transient states of electric machines, calculation of resistances, reactances and losses some types of machines, design of winding and magnetic circuits of rotating machines. Electrical machines are measured in laboratory at transient state and by nonsinusoidal supply.

Compulsory literature:

S.V Kulkarni:Transformer enginneering, Design and practise, Marcel Dekker, New York, 2004 J. Hindmarsh, Eletrical Machines and their applications, Pergamon Prees Oxford, 1971 Peter Vas: Parameter estimation, condition monitoring and diagnosis of eletrical machines, Clarendon Press, Oxford 1993

Recommended literature:

J. Hindmarsh, Eletrical Machines and their applications, Pergamon Prees Oxford, 1971

Way of continuous check of knowledge in the course of semester

Conditions for credit: Punctual appreciation Participation on all laboratory exercises Elaboration of all documentation from laboratory exercises Successful test

E-learning

Další požadavky na studenta

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

Lectures: Magnetic circuit of three-phase transformer Nonlinear phenomena in transformer Cut off on transformer connexion in net. Calculation leakage winding reactance Windings direct-current machines, vector star and voltage polygon, equations of windings, loop and wave windings Windings of alternate machines, factor winding, diagram of slotted voltages Tinley's winding diagram and Goegresses diagram, rotor winding of asynchronous machines Equivalent circuit and circle diagram asynchronous machine from calculated values. Reactances and resistances calculation of electrical machines, differential leakage Magnetic circuit calculation of synchronous and asynchronous machines Calculation of no-load circuit characteristic and exciting winding of synchronous machine, excitation systems Losses calculation of electrical machines, losses in copper, in iron, mechanic losses and auxiliary losses Determination of exciting current in loading synchronous machine. Characteristic of synchronous machines. Circle diagram of synchronous machine Exercises: Submission of semester work, requirements on conferment of credits Influence on circle diagram and losses DC windings, loop and wave windings, voltage polygon, coupler of I. and II.order Tinley´s winding diagram and Goerges´es diagram, running of magneto motive force in air space, factor differential leak Credit exercise Laboratories: Apprise of laboratory equipments safety regulations Measurement on transformer - asymmetrical load Measurement on transformer - closing no-load on induction motor power supply from frequency convertor Impedance circle diagram of induction motor Projects: It is submit self work, which students work up in time out of tutorial. Projects are calculations, drawing documentation and technical documentation from laboratory exercises. Computer labs: Exciting current, transformer calculation, resistances of primary and secondary winding, reactance's calculation and short-circuit voltage Introduction to transformer calculation, temperature classes, isolation classes selection, cooling, plating, material of windings, design of mag. circuits, selection of magnetic induction, active cross-section of mag. circuit, selection of numbers core steps, parallel sub-circuits, height of transformer window, insulating distance

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 (145) 51
        Examination Examination 100  0
        Exercises evaluation Credit 45  0
Mandatory attendence parzicipation:

Show history

Occurrence in study plans

Academic yearProgrammeField of studySpec.FormStudy language Tut. centreYearWSType of duty
2009/2010 (N2649) Electrical Engineering (3907T001) Electrical Power Engineering P Czech Ostrava 1 Choice-compulsory study plan
2009/2010 (N2649) Electrical Engineering (3907T001) Electrical Power Engineering K Czech Ostrava 1 Choice-compulsory study plan
2008/2009 (N2645) Electrical Engineerong, Communication and Computer Systems (2642T004) Electrical Machines Apparatus and Drives P Czech Ostrava 2 Choice-compulsory study plan
2008/2009 (N2645) Electrical Engineerong, Communication and Computer Systems (2642T004) Electrical Machines Apparatus and Drives K Czech Ostrava 2 Choice-compulsory study plan
2008/2009 (N2649) Electrical Engineering (3907T001) Electrical Power Engineering P Czech Ostrava 1 Choice-compulsory study plan
2008/2009 (N2649) Electrical Engineering (3907T001) Electrical Power Engineering K Czech Ostrava 1 Choice-compulsory study plan
2007/2008 (N2645) Electrical Engineerong, Communication and Computer Systems (2642T004) Electrical Machines Apparatus and Drives P Czech Ostrava 2 Choice-compulsory study plan
2007/2008 (N2645) Electrical Engineerong, Communication and Computer Systems (2642T004) Electrical Machines Apparatus and Drives K Czech Ostrava 2 Choice-compulsory study plan
2007/2008 (N2649) Electrical Engineering (3907T001) Electrical Power Engineering P Czech Ostrava 1 Choice-compulsory study plan
2007/2008 (N2649) Electrical Engineering (3907T001) Electrical Power Engineering K Czech Ostrava 1 Choice-compulsory study plan
2006/2007 (N2645) Electrical Engineerong, Communication and Computer Systems (2642T004) Electrical Machines Apparatus and Drives P Czech Ostrava 2 Choice-compulsory study plan
2006/2007 (N2645) Electrical Engineerong, Communication and Computer Systems (2642T004) Electrical Machines Apparatus and Drives K Czech Ostrava 2 Choice-compulsory study plan
2006/2007 (N2649) Electrical Engineering (3907T001) Electrical Power Engineering P Czech Ostrava 1 Choice-compulsory study plan
2006/2007 (N2649) Electrical Engineering (3907T001) Electrical Power Engineering K Czech Ostrava 1 Choice-compulsory study plan
2005/2006 (N2645) Electrical Engineerong, Communication and Computer Systems (2642T004) Electrical Machines Apparatus and Drives P Czech Ostrava 2 Choice-compulsory study plan
2005/2006 (N2645) Electrical Engineerong, Communication and Computer Systems (2642T004) Electrical Machines Apparatus and Drives K Czech Ostrava 2 Choice-compulsory study plan
2004/2005 (N2645) Electrical Engineerong, Communication and Computer Systems (2642T004) Electrical Machines Apparatus and Drives P Czech Ostrava 2 Choice-compulsory study plan
2004/2005 (N2645) Electrical Engineerong, Communication and Computer Systems (2642T004) Electrical Machines Apparatus and Drives K Czech Ostrava 2 Choice-compulsory study plan
2003/2004 (N2645) Electrical Engineerong, Communication and Computer Systems (2642T004) Electrical Machines Apparatus and Drives P Czech Ostrava 2 Choice-compulsory study plan
2003/2004 (N2645) Electrical Engineerong, Communication and Computer Systems (2642T004) Electrical Machines Apparatus and Drives K Czech Ostrava 2 Choice-compulsory study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner