451-0511/01 – Protections And Automatics In Electric Power Distribution (db-OAR)
Gurantor department | Department of Electrical Power Engineering | Credits | 4 |
Subject guarantor | doc. Dr. Ing. Zdeněk Medvec | Subject version guarantor | doc. Dr. Ing. Zdeněk Medvec |
Study level | undergraduate or graduate | Requirement | Compulsory |
Year | 3 | Semester | winter |
| | Study language | Czech |
Year of introduction | 2000/2001 | Year of cancellation | 2005/2006 |
Intended for the faculties | FEI | Intended for study types | Bachelor |
Subject aims expressed by acquired skills and competences
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
Summary
Compulsory literature:
Blackburn, J. Lewis: Protective relaying-principles and applications. Marcel Dekker, Inc. New York 1998.
Horowitz, S. H., Phaddke, A. G.:Power system relaying. RSP Press Ltd. Tauton, 1992.
Recommended literature:
Way of continuous check of knowledge in the course of semester
E-learning
Other requirements
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.
Basic elements of protections, electromechanical and statical relays.
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:
Calculation of symmetric and asymetric short-circuit currents for setting of protections.
Laboratory electrical measurement at over-current protection AT31X1.
Laboratory electrical measurement at impedance protection D114.
Laboratory electrical measurement at transistor protection ALOX A100.
Laboratory electrical measurement at digital voltage protection SPAU 330 C5.
Laboratory electrical measurement at digital current protection SPAA 341 C2.
Laboratory electrical measurement at digital differential protection SPAD 346 C.
Setting of line over-current protections and of line short-circuit protections.
Setting of line voltage protections and of line impedance protections.
Setting of line earth-fault protections.
Setting of transformer protections.
Instrument voltage transformers and current transformers.
Dimensioning of instrument current transformers.
Credit exercise.
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction
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