National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
Energy meter testing by test set CMC 256plus
Jurka, Tomáš ; Topolánek, David (referee) ; Toman, Petr (advisor)
The thesis provides a reader with a brief overview of the basic methods for measuring active electric quantities, development and types of energy meters. Some of the standards related to the energy meters are also included. Then follows the description of tests concerning both electrome-chanical and electronic meters of accuracy class number two. The thesis also includes a brief overview of energy meter testing devices from other producers. The next section describes test set OMICRON CMC 256plus and Test Universe program. The main part of the thesis consists of the scheme and the implementation of laboratory work for testing the energy meters with test set OMICRON CMC 256plus.
Energy meter testing by test set CMC 256plus
Jurka, Tomáš ; Topolánek, David (referee) ; Toman, Petr (advisor)
The thesis provides a reader with a brief overview of the basic methods for measuring active electric quantities, development and types of energy meters. Some of the standards related to the energy meters are also included. Then follows the description of tests concerning both electrome-chanical and electronic meters of accuracy class number two. The thesis also includes a brief overview of energy meter testing devices from other producers. The next section describes test set OMICRON CMC 256plus and Test Universe program. The main part of the thesis consists of the scheme and the implementation of laboratory work for testing the energy meters with test set OMICRON CMC 256plus.
Nonstandard test of energy meters
Jurka, Tomáš ; Drápela, Jiří (referee) ; Wasserbauer, Vojtěch (advisor)
This thesis covers a brief overview of the development of the energy meter technology as well as a division of the modern energy meters and a description of the functions of electromechanical and static energy meters. The thesis also contains a list and a simple description of the type tests in compliance with the applicable standards relevant to the energy meters. Furthermore, the thesis describes the impact of differential disturbances in the band from 2 kHz to 250 kHz. The paper also defines the IEC-61000-4-19 standard and describes the testing system for measuring the impact of differential disturbances in the band from 2 kHz to 150 kHz. The thesis includes a description of the data acquisition software that was created in the Matlab program. The final part of the paper focuses on a description of the results of parametric tests and the proposal for their adjustments.

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