410-4119/01 – Electrical Apparatuses II (ELP2)
| Gurantor department | Department of Electrical Power Engineering | Credits | 6 |
| Subject guarantor | doc. Ing. Petr Kačor, Ph.D. | Subject version guarantor | doc. Ing. Petr Kačor, Ph.D. |
| Study level | undergraduate or graduate | Requirement | Choice-compulsory |
| Year | 1 | Semester | winter |
| | Study language | Czech |
| Year of introduction | 2014/2015 | Year of cancellation | |
| Intended for the faculties | FEI | Intended for study types | Follow-up Master |
Subject aims expressed by acquired skills and competences
Studens know electrical terminology of electrical devices. They also will describe the basic design of electric devices, setting of tripping units, measurement of basic characteristic and practical using of electric devices in area of electrical power engineering and electric driving systems.
Teaching methods
Lectures
Tutorials
Summary
This course follows the Electrical Apparatus course. This subject amount of protection, fuse and circuit breaker constructions are deal with. Function of contactors in electrical circuit and their construction. Overvoltage in power system and overvoltage diverters. Design and project power resistors, inductors and capacitors. There is also discussed basic problems of electric contacts and DC and AC electromagnets.
Compulsory literature:
Recommended literature:
Way of continuous check of knowledge in the course of semester
Conditions for credit:
Protocols of measurments and calculations.
Proof.
E-learning
Other requirements
There are no other requirements on the student.
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
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.
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction