Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Gonzalo Aristoy"'
Autor:
Rogelio Sandler, Marcelo Brehm, Daniel Slomovitz, Alejandro Santos, Gonzalo Aristoy, Luis Astesiano
Publikováno v:
2021 IEEE URUCON.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14a301ee0ac227d8d9b4d264d7b20955
https://doi.org/10.1109/urucon53396.2021.9647200
https://doi.org/10.1109/urucon53396.2021.9647200
Autor:
Daniel Slomovitz, Carlos Faverio, Leonardo Trigo, Marcelo Brehm, Gonzalo Aristoy, Alejandro Santos, Rogelio Sandler
Publikováno v:
I2MTC
Very fast transient overvoltages appear when switches operate in high voltage networks. In some cases, they can affect near current transformers (CT). In this paper, a new methodology for measuring these transients is proposed. It uses the stray capa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7962afb5fcf535605c3ad163110532e5
https://doi.org/10.1109/i2mtc50364.2021.9459941
https://doi.org/10.1109/i2mtc50364.2021.9459941
Autor:
Alvaro Zipaquira Triana, Jose Luis Casais, Alejandro Santos, Sergio Ochoa Marquez, Rogelio Sandler, Gonzalo Aristoy, Enrico Mohns, Patricia Casi de Olivera, Daniel Slomovitz, Julio Gonzalez
Publikováno v:
Metrologia. 57:01011
This report describes a supplementary comparison on current ratio at power frequencies. The traveling standard was a high precision current transformer. Frequencies of 50 Hz and 60 Hz were used with a current range between 5 A and 1000 A. Participant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9bc84c06025938b0a9f5016a2306ef7
https://doi.org/10.1088/0026-1394/57/1a/01011
https://doi.org/10.1088/0026-1394/57/1a/01011
Testing Methods for Measuring the Effects of Stray Capacitances on High-Voltage Current Transformers
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 64:2200-2207
This paper evaluates different measuring systems to estimate the effect of stray capacitances between primary and secondary windings on current transformers (CTs) used in high-voltage power networks. All windings are at nearly ground potential during
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95dbbb82d0e9ecd5814442c016883c64
https://doi.org/10.1109/tim.2015.2393395
https://doi.org/10.1109/tim.2015.2393395
Publikováno v:
2016 Conference on Precision Electromagnetic Measurements (CPEM 2016).
In high voltage power systems, harmonic content is measured at low voltage through the instrument transformers on the power grid. In this paper, a system for measuring the behavior of commercial current and voltages transformers under distorted wavef
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49be004499f5d3541ced5099dcd12df9
https://doi.org/10.1109/cpem.2016.7540742
https://doi.org/10.1109/cpem.2016.7540742
Publikováno v:
2016 Conference on Precision Electromagnetic Measurements (CPEM 2016).
In this paper, a proposal to reduce the influence of stray capacitances and non-linear effects on resistors used for voltage dividers up to 1000 V and 100 kHz is presented. A novel type of shield is proposed which avoids the use of guarding arms.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e20b2df89626a59583ecb42a03aa96b6
https://doi.org/10.1109/cpem.2016.7540741
https://doi.org/10.1109/cpem.2016.7540741
Publikováno v:
Journal of Physics: Conference Series. 975:012068
In this work, we present testing results of voltage transformers (VT) errors, under distorted waveforms. Different types of VTs used in high voltage power networks were analysed. This includes inductive as well as capacitive VTs. The main tests were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89b03936647c13bfb23ed9ff5e382fdf
https://doi.org/10.1088/1742-6596/975/1/012068
https://doi.org/10.1088/1742-6596/975/1/012068
Publikováno v:
Journal of Physics: Conference Series. 975:012074
In this work, we describe a programmable high-voltage source to test the behaviour of voltage transformers under distorted waveforms at nominal voltages, as well as the measurement system for computing their errors at each harmonic component.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39ea2d884861b250c225cc4009ca0592
https://doi.org/10.1088/1742-6596/975/1/012074
https://doi.org/10.1088/1742-6596/975/1/012074
Publikováno v:
2015 IEEE PES Innovative Smart Grid Technologies Latin America (ISGT LATAM).
This article studies an algorithm for state estimation in electric power networks, adding information from phasor measurement units (PMU) to the classical SCADA data. This work describes the implementation in MatLab of one of the algorithms found in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ebd308791e169086ebbbc6893b037fca
https://doi.org/10.1109/isgt-la.2015.7381244
https://doi.org/10.1109/isgt-la.2015.7381244
Publikováno v:
2015 IEEE PES Innovative Smart Grid Technologies Latin America (ISGT LATAM).
The use of nonlinear loads connected to the power networks that produce distorted currents has been increased in the last years. At the same time, distributed generation has also been increased. It uses power electronic devices to inject the energy t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8f1702cf1cf9031d6cf3aa5b8c05673
https://doi.org/10.1109/isgt-la.2015.7381234
https://doi.org/10.1109/isgt-la.2015.7381234