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Electrical Apparatuses II

Type of study Follow-up Master
Language of instruction Czech
Code 410-4119/01
Abbreviation ELP2
Course title Electrical Apparatuses II
Credits 6
Coordinating department Department of Electrical Power Engineering
Course coordinator doc. Ing. Petr Kačor, Ph.D.

Subject syllabus

Lectures:
1.Transients effects and their influences to design and operation of electric apparatus
2.Protection of electric circuits, fuses, circuit-breakers, current limiting function, I2t let-through energy
3.Fuse - basic design, operation, time interval of electric arc burning, extinquishing of electric arc
4.Circuit Breakers - basic design, operation, tripping units, electromagnetic trip
5.Contactors - basic design, operation, life cycle, basic wiring of electric circuits with contactors
6.Selectivity, protection, setting of protection units
7.Conductors - conductors design, skin-effect, DC and AC resistance
8.Electrical contacts - basic design, basic types of contacts, used materials
9.Electromagnet - design, energy converter
10.DC and AC electromagnet - static and transient force characteristic
11.Separators, electromagnetic holders, permanet magnets

Exercises:
Basic design of contacts of switching aparatus
Basic design and computing of DC electromagnet
Final Test

Laboratories:
Measurement of thermal trip of low voltage circuit breaker
Measurement of temperature rise of low voltage circuit breaker
Measurement of let-through energy of low voltage circuit breaker
Measurement and wiring of electrical contactors

Projects:
Calculation of the contact system of an MV switch.
Design of DC shell electromagnet.

E-learning

Consultation through MS Teams.

Literature

1. Mason, J.R.: Switch engineering handbook, New York, 1993
2. Slade, P. G. - Electrical Contacts, CRC Press, 1999, ISBN: 0824719344 
3. Flurscheim, Ch. H. - Power Circuit Breaker Theory and Design, IEE, 1982, ISBN: 0906048702 
4. Nakanishi - Switching Phenomena in High-Voltage Circuit Breakers, CRC Press, 1991, ISBN: 0824785436 
5. Tajev, I.S.: Električeskije apparaty, Moskva, Energija 1977

Advised literature

1. Flurscheim, Ch. H. - Power Circuit Breaker Theory and Design, IEE, 1982, ISBN: 0906048702 
2. Nakanishi - Switching Phenomena in High-Voltage Circuit Breakers, CRC Press, 1991, ISBN: 0824785436