Laboratory of the Electrical protection

Head of laboratory: Ing. Zsolt Čonka, Ph.D.

The laboratory is designed for measuring as well as testing electrical protections and equipment used to implement protections in the power system. The main function of the laboratory is to ensure the educational process of students. The laboratory also serves the needs of applied research.

Subjects and outputs of education:

• Bachelor study: Subject Electrical protection in the power system (basic knowledge of the principles of analog and digital protection, methods of protection of power lines and power equipment)
• Engineering study: Subject Protection systems in the power system (PP) (knowledge of systems for protection, measurement, monitoring and control of electrical equipment. Principle of communication with intelligent electronic devices. Design and testing of complex protection systems for power units.)
• Doctoral study: Subject Theoretical Power Engineering: acquisition of in-depth theoretical knowledge, using the latest research findings and trends in the development of power engineering. – modeling of elements in the electrical system. Acquisition of new methods of analysis of electrical systems. Ability to solve wave processes on lines, wave processes on lines, model and analyze electromagnetic fields, solve surface phenomena in the transmission of electricity, investigate electromagnetic transients.
• Doctoral study: Subject Scientific activity 1-5 .: Ability to independently design, construct, implement and modify a substantial part of research with scientific integrity and contribute to the original research to expand the boundaries of scientific knowledge through the implementation of an extensive set of works, some of which are worthy of peer-reviewed publications. Achieving original scientific results, acceptable at the international level. Based on the implementation of scientific research, the graduate is considered an expert in his field.
• Doctoral study: Subject Analysis of the power system: Extension of theoretical knowledge acquired in the second stage of the study with the latest research results and development trends in the field of management and operation of the power system using elements of artificial intelligence. Ability to apply information and control systems in solving the stability of the power system and one-way transmission of electricity. Gaining expanding knowledge about the degradation processes of power system equipment on the specifics of TVN in one-way ZVN lines. Ability to solve technical problems of operation of electricity systems within UCTE and problems of rationalization of electricity consumption. Knowledge of the principle and ability to work in the conditions of a liberalized electricity market.
• Doctoral study: Subject Dissertation project: Acquisition of methods of scientific work. Deepening knowledge of the topic of the dissertation. Intensive research to achieve original scientific results, acceptable at international level. The doctoral student is able to demonstrate the ability of creative independent and team work in solving a scientific research task or project by presenting results in the form of scientific publications, journals and conferences, participation in research teams of grant tasks, etc. He is able to formulate the goals of the dissertation and methods that lead to the fulfillment of its goals. He is able to design and apply scientific procedures for solutions. Can present procedures and results of his / her scientific work.

In the laboratory of electrical protection, teaching takes place in two subjects: Electrical protection in electrical systems and Protection systems in the electrical system.

The subject Electrical Protection in Power Systems is a compulsory subject, which must be completed by all students of the Department of Electrical Power Engineering in the 3rd year of Bc. study. By completing the course, students will gain knowledge of the principles of activities of various types of protection from electromechanical to modern digital protection, as well as methods of protecting power lines and electrical machines.

The course acquires basic knowledge of methods of design of systems of protection of individual elements of the power system, as well as integrated units, such as: systems of protection of power units, power stations and electrical transmission and distribution networks. The following activities are performed in the laboratory:

Testing of auxiliary electrical protection devices

The laboratory has various types of instrument current, voltage, current and voltage sensors on which students verify their correct operation. Improper selection or operation of PNP and PTN for individual applications will significantly affect the operation of electrical protection. Therefore, verification and knowledge of the principle of operation of individual instrument transformers is a very important aspect in EC protection.

Digital protection testing

The laboratory provides the possibility of secondary testing of digital protections using Omicron CMC 156 and SEL 4000 devices. They then enter this data manually or with software into a specific protection and test the protection with Omicron CMC 156 or SEL 4000 software and equipment.

The laboratory is equipped with a wide range of digital protections as well as real MV switch cabinets with integrated protection, disconnector and circuit breaker.

• Digital terminal protection SEL 751A
• Digital terminal protection SEL 751 – with touch screen
• Digital transformer protection SEL 787
• Digital generator protection SEL 700GT
• Digital generator protection SEL 700G
• Digital protection SEL 421
• Digital three-point comparator protection SEL 387E
• ABB REF543 digital protection
• ABB REX 521 digital protection
• Omicron CMC 156 protection tester
• SEL 4000 protection tester
• ABB REF615 digital protection
• ABB RED615 digital protection
• ABB SPAM 150 C digital protection
• Digital protection ABB SPAJ 140 C
• Digital protection MiCOM P139
• SIEMENS SIPROTEC 7UM61 digital protection
• SIEMENS SIPROTEC 7SJ63 digital protection