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Testing of transformer protection
Kulač, Ivan ; Novotný, Jan (referee) ; Orságová, Jaroslava (advisor)
The main theme of my Bachelor thesis was protection of the transformer, measured case was orient to differential protection of the transformer, functions, stabilization and release characteristic. The proposed method of testing module SPCD3D53 differential protection SPAD 346C which was made by ABB. Setting of release characteristics on the protection were made for real power transformers. Testing device OMICRON CMC 256 plus was used to measurement, which was same as protection connected to personal computer. All the PC’s settings operations were realized by recommended software. The measurements were made for three cases, when differential current was in one, two or three phases. Results of measurement are mentioned in tables and graph.
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Project of Logical Busbar Protection
Kulač, Ivan ; Paar, Martin (referee) ; Orságová, Jaroslava (advisor)
The main objective of master‘s thesis was creation logical overcurrent busbar protection. The first part of document describes teaching test panels with ABB REF feeder protection´s terminals. These panels are installed in Laboratory of electrical protections at Department of electrical power engineering, Faculty of electrical engineering and communication, Brno University of technology. On these panels we can simulate the real involvement of the distribution station. Were subsequently describes used digital protection´s terminals REF 543. Then was designed configuration of these panels so to achieve logical busbar protection, which will be able to assess the short circuit fault and shut the smallest part of the busbar system. Within the configuration it was necessary to solve the cooperation of protection terminals. This was finally accomplished through connecting wires between each test panel. After the configuration it was necessary make the tests. We used secondary protection tester CMC 256plus. After the tests was analysis fault´s records and has been verified the accuracy of the proposed logical busbar protection.
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Testing of transformer protection
Kulač, Ivan ; Novotný, Jan (referee) ; Orságová, Jaroslava (advisor)
The main theme of my Bachelor thesis was protection of the transformer, measured case was orient to differential protection of the transformer, functions, stabilization and release characteristic. The proposed method of testing module SPCD3D53 differential protection SPAD 346C which was made by ABB. Setting of release characteristics on the protection were made for real power transformers. Testing device OMICRON CMC 256 plus was used to measurement, which was same as protection connected to personal computer. All the PC’s settings operations were realized by recommended software. The measurements were made for three cases, when differential current was in one, two or three phases. Results of measurement are mentioned in tables and graph.
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Project of Logical Busbar Protection
Kulač, Ivan ; Paar, Martin (referee) ; Orságová, Jaroslava (advisor)
The main objective of master‘s thesis was creation logical overcurrent busbar protection. The first part of document describes teaching test panels with ABB REF feeder protection´s terminals. These panels are installed in Laboratory of electrical protections at Department of electrical power engineering, Faculty of electrical engineering and communication, Brno University of technology. On these panels we can simulate the real involvement of the distribution station. Were subsequently describes used digital protection´s terminals REF 543. Then was designed configuration of these panels so to achieve logical busbar protection, which will be able to assess the short circuit fault and shut the smallest part of the busbar system. Within the configuration it was necessary to solve the cooperation of protection terminals. This was finally accomplished through connecting wires between each test panel. After the configuration it was necessary make the tests. We used secondary protection tester CMC 256plus. After the tests was analysis fault´s records and has been verified the accuracy of the proposed logical busbar protection.
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