Electrical Protections
| Type of study | Follow-up Master |
|---|---|
| Language of instruction | English |
| Code | 410-4123/02 |
| Abbreviation | EOCH |
| Course title | Electrical Protections |
| Credits | 6 |
| Coordinating department | Department of Electrical Power Engineering |
| Course coordinator | Ing. Matouš Vrzala, Ph.D. |
Osnova předmětu
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 with transformer protection ABB RET630.
Laboratory electrical measurement with feeder protection ABB REF630.
Projects:
Proposal and Setting of Electric Protections Medium Voltage
Proposal and Setting of Electric Protections High Voltage
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 with transformer protection ABB RET630.
Laboratory electrical measurement with feeder protection ABB REF630.
Projects:
Proposal and Setting of Electric Protections Medium Voltage
Proposal and Setting of Electric Protections High Voltage
E-learning
Study guides are available in the LMS for students of the course.
Povinná literatura
1. Network Protection & Automation Guide, Alstom Grid, 2011. ISBN: 978-0-9568678-0-
Doporučená literatura
1. Sleva, A. F.: Protective relay principles. CRC Press, 2009, ISBN 978-0-8247-5372-6 .
2. Blackkburn, J.L., Domin T. J.: Protective Relaying Principles and Applications, CRC Press, 2006, ISBN 978-1-57444-716-3 .
3. RELION® protection and control 630 series Technical Manual. ABB Library. VAASA, Finland: ABB Distribution Solutions Distribution Automation, 2019.
2. Blackkburn, J.L., Domin T. J.: Protective Relaying Principles and Applications, CRC Press, 2006, ISBN 978-1-57444-716-3 .
3. RELION® protection and control 630 series Technical Manual. ABB Library. VAASA, Finland: ABB Distribution Solutions Distribution Automation, 2019.