Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Renata Styblikova"'
Autor:
Gabriella Crotti, Yeying Chen, Huseyin Çayci, Giovanni D’Avanzo, Carmine Landi, Palma Sara Letizia, Mario Luiso, Enrico Mohns, Fabio Muñoz, Renata Styblikova, Helko van den Brom
Publikováno v:
Sensors, Vol 22, Iss 15, p 5847 (2022)
The integration of renewable energy sources on a large scale in the electrical energy distribution systems, as well as the widespread of non-linear loads, has led to a significant increase in power quality (PQ) disturbances. For this reason, PQ monit
Externí odkaz:
https://doaj.org/article/e44db5587dfc49f3a18cb959d8c24ed5
Autor:
Karel Draxler, Renata Styblikova
Publikováno v:
Journal of Electrical Engineering. 69:426-430
This paper describes the influence of magnetization of an instrument current transformer (ICT) core on ICT errors, and presents a procedure for demagnetizing an ICT. The dependence of ICT errors on the magnetization of the ICT core for different magn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::faedfd2b48fc45b8252e3b95aa379ff0
https://doi.org/10.2478/jee-2018-0066
https://doi.org/10.2478/jee-2018-0066
Publikováno v:
I2MTC
The first part of this paper deals with the influence of burden accuracy on the errors of current and voltage instrument transformers. The requirement stated in the prepared standard, corresponding to a tolerance of burden value B ± 3 % and power fa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8871784098d9903f6d05aee87fb8f184
https://doi.org/10.1109/i2mtc43012.2020.9128565
https://doi.org/10.1109/i2mtc43012.2020.9128565
Autor:
M Agazar, Enrico Mohns, P. Mazza, H.E. van den Brom, M. Almutairi, Roberto Tinarelli, Gabriella Crotti, H. Cayci, Jan Meyer, Renata Styblikova, Mario Luiso
Instrument transformers (ITs) are vital components of power quality (PQ) measurement systems in electrical transmission and distribution grids. Whereas measurement methods and accuracy are well defined for PQ measurement instruments, accurate knowled
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc4335c457f3c5d60039545402d07681
http://hdl.handle.net/11585/784417
http://hdl.handle.net/11585/784417
The paper presents the basic layout for instrument current transformer calibration using comparative method with a standard. The error difference is evaluated using electronic transformer test sets. Calibrating procedure of these systems using error
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8bb02bf72132f45e90ae85d886a9e4e4
http://hdl.handle.net/11025/35511
http://hdl.handle.net/11025/35511
Autor:
R. Martin, Gabriella Crotti, T. Cincar-Vujovic, R. Kampfer, Enrico Mohns, C. Mester, I. Blanc, A.J. Wheaton, Jan Hlavacek, M. Schnaitt, M. Hammarquist, Emil Dimitrov, H.E. van den Brom, W. Waldmann, Jari Hällström, Renata Styblikova, Karel Draxler, Gert Rietveld, H. Cayci, Fernando Garnacho, A. Bergman, B. Paczek, E-P. Suomalainen, G. Sadkowski
Publikováno v:
Draxler, K, Styblíková, R, Hlavacek, J, Rietveld, G, van den Brom, H E, Schnaitt, M, Waldmann, W, Dimitrov, E, Cincar-Vujovic, T, Paczek, B, Sadkowski, G, Crotti, G, Martin, R, Garnacho, F, Blanc, I, Kämpfer, R, Mester, C, Wheaton, A, Mohns, E, Bergman, A, Hammarquist, M, Çayci, H, Hällström, J & Suomalainen, E-P 2018, Results of an International Comparison of Instrument Current Transformers up to 10 kA at 50 Hz Frequency . in CPEM 2018-Conference on Precision Electromagnetic Measurements . IEEE Institute of Electrical and Electronic Engineers, Conference on Precision Electromagnetic Measurements, CPEM 2018, Paris, France, 8/07/18 . https://doi.org/10.1109/CPEM.2018.8500821
Traceability of the current ratio is crucial for the measurement of electrical energy in revenue metering. A comparison of the AC current ratio was therefore performed within EURAMET in the time period 2012 - 2016, using a precision CT as the traveli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5dc64695d4a01930d35857de3a9f2bff
https://doi.org/10.1109/CPEM.2018.8500821
https://doi.org/10.1109/CPEM.2018.8500821
Publikováno v:
IEEE Transactions on Magnetics. 51:1-4
Current transformers (CTs) show large errors when they are magnetized by dc current. This error can be reduced after proper demagnetization. One of the methods to demagnetize the CT is to increase the core flux by increasing its burden. The burden sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d372f912003d2cb488f0490bfdf08d9d
https://doi.org/10.1109/tmag.2014.2356574
https://doi.org/10.1109/tmag.2014.2356574
Autor:
Karel Draxler, Renata Styblikova
Publikováno v:
2017 International Conference on Applied Electronics (AE).
A system for evaluating instrument current transformer errors using a lock-in amplifier is described in the paper. The difference between the standard and the transformer under test is evaluated as the ratio error and the phase displacement. The atte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a99f8266a5363aa94c9351c8f854d16
https://doi.org/10.23919/ae.2017.8053582
https://doi.org/10.23919/ae.2017.8053582
Publikováno v:
IEEE Transactions on Magnetics. 50:1-4
Dc currents in power grids are created by induction from geomagnetic variations and newly also by transformerless power inverters installed in solar power stations. These currents may not only cause serious errors of current transformers (CTs) measur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c7286417e403f86ffcd0341be97b601
https://doi.org/10.1109/tmag.2013.2285878
https://doi.org/10.1109/tmag.2013.2285878
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 62:1658-1663
This paper presents two methods for determining the ratio error and the phase displacement of a protective current transformer (PCT) with a transformation ratio of 10 kA/1 A and a measuring current transformer (MCT) with a transformation ratio of 20
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c2fee243255296e02acb0f37c28930e
https://doi.org/10.1109/tim.2012.2228073
https://doi.org/10.1109/tim.2012.2228073