Zobrazeno 1 - 10
of 28
pro vyhledávání: '"C. M. Diniş"'
Publikováno v:
Journal of Physics: Conference Series. 2212:012021
In this work we analyzed the numerical relay 7SA612, which represents the basic protection of 220 kV overhead transmission lines starting from the Mintia electric station. The main function of 7SA612 relay is the distance protection; in addition, thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b5359dc35d99ef3c0b64a780556ea1b
https://doi.org/10.1088/1742-6596/2212/1/012021
https://doi.org/10.1088/1742-6596/2212/1/012021
Publikováno v:
Journal of Physics: Conference Series. 1781:012046
The paper presents a device with microcontroller for measuring the power factor used for single-phase low voltage electrical consumers. Voltage and current are measured, and the paper presents two constructive variants of pulse circuits (TTL compatib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d43560a3991cae98f5e1ed4c529e6bd
https://doi.org/10.1088/1742-6596/1781/1/012046
https://doi.org/10.1088/1742-6596/1781/1/012046
Publikováno v:
Journal of Physics: Conference Series. 1781:012047
After the pandemic of SARS-CoV-2, people’s lives will be different. It seems that in the next period, due to the spread of SARS-CoV-2 virus worldwide, all objects, surfaces and spaces that people come in contact with must be disinfected frequently.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b753f43814f21ca9afe61ba643aa930
https://doi.org/10.1088/1742-6596/1781/1/012047
https://doi.org/10.1088/1742-6596/1781/1/012047
Publikováno v:
Journal of Physics: Conference Series. 1781:012045
The temperature can be measured electrically by several methods: with thermoresistive transducers, with thermocouple transducers, with thermistors, with the pn junctions of semiconductor devices, etc. Thermistors are electrical resistors made of meta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bce2fb2b30201a6a92090b5e84a4270b
https://doi.org/10.1088/1742-6596/1781/1/012045
https://doi.org/10.1088/1742-6596/1781/1/012045
Publikováno v:
Journal of Physics: Conference Series. 1781:012043
In this work we analyzed a laboratory induction furnace, having a small capacity, fed by a high-frequency static converter. The measurements were carried out in the case of an aluminum batch, and a steel batch, using the power quality analyzer CA8334
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0ccfb744164dbc3e574b5e1216daca8
https://doi.org/10.1088/1742-6596/1781/1/012043
https://doi.org/10.1088/1742-6596/1781/1/012043
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 477:012031
The paper presents an analogue ESR meter, made with a JFET integrated circuit, which can be used to identify defective electrolytic capacitors. It is powered by continuous voltage and consists of a differential voltage source, a 100 kHz oscillator, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c382c00bda9f2331f7437cc1ce14db6b
https://doi.org/10.1088/1757-899x/477/1/012031
https://doi.org/10.1088/1757-899x/477/1/012031
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 294:012051
The paper presents the analysis of a power factor with capacitors banks, without series coils, used for improving power factor for a three-phase and single-phase inductive loads. In the experimental measurements, to improve the power factor, the Roed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ebd725ab1f20d8f7798626222e9c7d4
https://doi.org/10.1088/1757-899x/294/1/012051
https://doi.org/10.1088/1757-899x/294/1/012051
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 163:012035
This paper presents the experimental analysis of current-voltage characteristic of DC corona discharge. In experiments were used an electrostatic discharge system, consists of an active brass electrode, and a passive copper electrode (plane). A high-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eeeb0d425e61a6d58944ced369e403e2
https://doi.org/10.1088/1757-899x/163/1/012035
https://doi.org/10.1088/1757-899x/163/1/012035
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 163:012033
In this paper is presented an analysis of the operating electric generators (synchronous and induction) within a small capacity hydroelectric power plant. Such is treated the problem of monitoring and control hydropower plant using SCADA systems. Hav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53ca8844f915dec0c33e840c117a88a4
https://doi.org/10.1088/1757-899x/163/1/012033
https://doi.org/10.1088/1757-899x/163/1/012033
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 106:012014
The paper is an analysis of two-positions (hysteresis) regulators, self-tuned PID controller and PID controller for temperature control used for indirect heat resistance furnaces. For PID controller was used three methods of tuning: Ziegler-Nichols s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fde5424981ceef9d99f13e57136cf0ff
https://doi.org/10.1088/1757-899x/106/1/012014
https://doi.org/10.1088/1757-899x/106/1/012014