410-4123/02 – Electrical Protections (EOCH)
| Gurantor department | Department of Electrical Power Engineering | Credits | 6 |
| Subject guarantor | Ing. Matouš Vrzala, Ph.D. | Subject version guarantor | Ing. Matouš Vrzala, Ph.D. |
| Study level | undergraduate or graduate | Requirement | Compulsory |
| Year | 1 | Semester | winter |
| | Study language | English |
| Year of introduction | 2019/2020 | Year of cancellation | |
| Intended for the faculties | FEI | Intended for study types | Follow-up Master |
Subject aims expressed by acquired skills and competences
Explaining basic terms, principles and functions of electromechanical, transistor and digital protections.
After passing the subject the student is able to apply the theory of protections and automatics in electric power distribution into the design of protection systems.
Teaching methods
Lectures
Tutorials
Experimental work in labs
Project work
Other activities
Teaching by an expert (lecture or tutorial)
Summary
The subject includes theoretical part of protections and automatics in electric power distribution. It is focused on line protections, electrical machines protections and anti-breakdown automatics. The subject explains basic terms, principles and functions of electromechanical, transistor and particularly digital protections.
Compulsory literature:
Recommended literature:
Additional study materials
Way of continuous check of knowledge in the course of semester
Processing of reports from laboratory works, project, test.
Credit conditions: Profit minimum 20 points, attendance at laboratory work.
Oral examination.
E-learning
Study guides are available in the LMS for students of the course.
Other requirements
Additional requirements for the student are not.
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
Lectures:
Calculation of short-circuit currents for setting of protections.
Basic terms of protections, operation of protections.
Line protections. Over-current protections, short-circuit protections, directional over-current protections.
Line protections. Voltage protections (undervoltage and overvoltage protections).
Line protections. Distance (impedance) protections.
Line protections. Transverse and lengthwise differential protections.
Transformer protections. Differential protections.
Transformer protections. Frame-leakage protections, Buchholz protection.
Differential bus-bar protections, earth-fault protections.
Instrument transformers. Instrument voltage transformers, instrument current transformers.
Instrument voltage transformers. Static instrument error, instrument error at transient processes, dimensioning of instrument current transformers for differential protections, high-speed impedance protections and slow protections.
Digital distance protections.
Anti-breakdown automatics.
Exercises:
Information about the requirements for passing the exercises. Safety considerations. The organization of the work in the labs. Instructions for elaboration of lab task.
Calculation of short-circuit currents for setting of protections.
Setting of line over-current protections and setting of line impedance protections.
Setting of transformer protections.
Instrument voltage and current transformers
Dimensioning of instrument current transformers.
Credit exercise.
Laboratory:
Laboratory electrical measurement at transistor protection ALOX A100.
Laboratory electrical measurement at impedance protection D114.
Laboratory electrical measurement at differential protection S 31.
Laboratory electrical measurement at digital current protection SPAA 341 C2.
Laboratory electrical measurement at digital differential protection SPAD 346 C.
Laboratory electrical measurement at digital protection SPAC 315 C.
Projects:
Proposal and Setting of Elektric Protections Medium Voltage
Proposal and Setting of Elektric Protections High Voltage
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction
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