453-0512/01 – Heavy-Current Electrical Engineering (SE)
| Gurantor department | Department of Electrical Machines and Apparatus | Credits | 4 |
| Subject guarantor | Ing. Václav Čech, Ph.D. | Subject version guarantor | Ing. Václav Čech, Ph.D. |
| Study level | undergraduate or graduate | Requirement | Compulsory |
| Year | 2 | Semester | summer |
| | Study language | Czech |
| Year of introduction | 2003/2004 | Year of cancellation | 2010/2011 |
| Intended for the faculties | FEI | Intended for study types | Bachelor |
Subject aims expressed by acquired skills and competences
Student knows basic of electrical apparatus, electrical machines and drives and electric power supply, dimensioning of apparatus and drives and orientates in main technical dates and makes technical calculations.
Teaching methods
Lectures
Tutorials
Experimental work in labs
Other activities
Summary
Cours presents the basic principles of electric apparatus, machines and drives
and their behaviour in electric power network. Students become familiar with
measuring methods and operation states of these appliances.
Compulsory literature:
Heřman, J. a kol.: Příručka silnoproudé elektrotechniky,SNTL Praha, 1984
Janoušek, J., Suchánek, V.: Základy silnoproudé elektrotechniky, Ediční
středisko ČVUT Praha, 1992
Recommended literature:
Heřman, J. a kol.: Příručka silnoproudé elektrotechniky,SNTL Praha, 1984
Janoušek, J., Suchánek, V.: Základy silnoproudé elektrotechniky, Ediční
středisko ČVUT Praha, 1992
Way of continuous check of knowledge in the course of semester
Conditions for credit:
Points evaluation.
1. Protocols from laboratory excercises
-apparatus,
machines,
drives.
2. Test.
Maximum of points from excercises 45
Conditions of credit acquirement:
completition of all excercises, commitment of all protocols.
E-learning
Other requirements
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
Lectures:
Common ideas-switch apparatus llv+lv, transient effects, importance of protection and switching on-terminology.
Fuses-importance of protection, fusing current, time of actuation, energy, restrictive current, design, selection of characteristics.
Circuit breaker-action, characteristics, releases, lock, free engine clutch, current limiting circuit breaker, fundamentals of AC current breakdown, performance, selection.
Contactors-duty types, contacts design, electromagnetic drive, heat relations.
Electromagnets-DC,AC,permanent magnets, characteristics, settings, changes possibilities, applications - relais - magnetic circuit design.
Electric machines dividing, materials used in electric machines, design, shapes, protection, cooling. Energy balance, losses.
Transformers, types,design, use. Principle of action, operation state, equivalent circuit.
,Asynchronous machines, design and use, principle of use. Starting up, breaking, speed control.
nesinusovým napětím či proudem.
Synchronous machines, dividing and use. Synchronous motors, use and speed control. Reluctance and hysteresis motors.
DC motors. Commutation. Types of DC motors and speed control.
Step and linear motors. Electronically commutated DC motors.
Dividing and use of static converters in acordance with flow of energy.
Rectifiers, types, operation. Single and three phase, controlled and non-controlled.
AC converters, frequency converter, AC switches and voltage converters, impedance converters. Negative influence of converters to supplying network and electric motors. Harmonics, EMC.
Laboratories:
Introduction, safety.
Measurement of additional losses, breaking characteristic.
Modelling of breaking.
Calculation of breaking.
Examples of electric machines.
Synchronous machine measurement.
Transformer measurement.
Asynchronous motor measurement.
DC machine drive.
Modelling and simulation of separated excited DC motor.
Asynchronous motor drive with frequency converter.
Examples of electric drives.
Credit.
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction
Předmět neobsahuje žádné hodnocení.