Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Valentyn Isaiev"'
Autor:
Valentyn Isaiev
The commercial AC-DC transfer standards are widespread at leading calibration and measurement laboratories for DC and low-frequency metrology. Therefore, possibilities of various combinations of applying such instruments, particularly to verify the r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31adf998bb73a3a93dcfdbfe004ab7e0
https://doi.org/10.36227/techrxiv.20406288.v1
https://doi.org/10.36227/techrxiv.20406288.v1
Autor:
Valentyn Isaiev
Publikováno v:
MAPAN. 36:717-728
The research work is aimed at providing the metrological service of production and operation of the measuring instruments of alternating current. Approximately a quarter of 200 countries of the world have the calibration and measurement capabilities
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32f995df09d2fe745f5a0120c1605dd3
https://doi.org/10.1007/s12647-021-00483-9
https://doi.org/10.1007/s12647-021-00483-9
Autor:
Valentyn Isaiev, Oleh Velychko
Publikováno v:
Український метрологічний журнал; № 2 (2020); 12-17
Украинский метрологический журнал; № 2 (2020); 12-17
Ukrainian Metrological Journal; № 2 (2020); 12-17
Украинский метрологический журнал; № 2 (2020); 12-17
Ukrainian Metrological Journal; № 2 (2020); 12-17
The optimal solution to the problem of metrological assurance in the field of production and operation of the precision measuring instruments of alternating current in Ukraine is to create a high-precision measurement standard. The theoretical princi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::769a8b4d8d72ad1d3864d40c38f01b2e
https://doi.org/10.24027/2306-7039.2.2020.208654
https://doi.org/10.24027/2306-7039.2.2020.208654
Publikováno v:
Key title Zbìrnik naukovih pracʹ Odesʹkoï deržavnoï akademìï tehnìčnogo regulûvannâ ta âkostì. :14-22
The article is devoted to the results of the research in order to solve the problem of metrological support of production and operation of thermoelectric power converters, precision meters and AC power sources in the branches of the national economy.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8472e10c80f786eb9edb25a4e0386a2d
https://doi.org/10.32684/2412-5288-2020-2-17-14-22
https://doi.org/10.32684/2412-5288-2020-2-17-14-22
Methodological Aspects of Using Comparators for Metrological Traceability of Instrument Transformers
Autor:
Valentyn Isaiev, Iurii Anokhin
Instrument transformers are widely used in accounting the electricity as well as in protecting the energy generation systems. The accuracy of both voltage and current transformers is a critical parameter in terms of ensuring the reliability of functi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a66c0c37f76d34c2687e1f72a5592d14
https://mts.intechopen.com/articles/show/title/methodological-aspects-of-using-comparators-for-metrological-traceability-of-instrument-transformers
https://mts.intechopen.com/articles/show/title/methodological-aspects-of-using-comparators-for-metrological-traceability-of-instrument-transformers
Autor:
Valentyn Isaiev, Svitlana Isaieva
Publikováno v:
2021 3rd Global Power, Energy and Communication Conference (GPECOM).
Both special three-phase AC calibrators and instrument transformer test units (ITTU) are used to assure the reliability of determining the accuracy of devices that are directly used in the circuit of obtaining information concerning the power quality
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8488ce183bee96edd5f431b61660ad56
https://doi.org/10.1109/gpecom52585.2021.9587679
https://doi.org/10.1109/gpecom52585.2021.9587679
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 68:1740-1747
Two methods of measuring the phase angle were used during the evaluation of the metrological characteristics of the measure of the power quality parameters. A precision voltmeter and a precision phase meter were applied to determine the indication er
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2b180804056cc04cb988c155e8dce9a
https://doi.org/10.1109/tim.2018.2880000
https://doi.org/10.1109/tim.2018.2880000
Publikováno v:
Key title: Zbìrnik naukovih pracʹ Odesʹkoï deržavnoï akademìï tehnìčnogo regulûvannâ ta âkostì. :19-28
The two rounds of investigating the dependence of measurement results of the AC/DC transfer difference on a temperature are yielded during the work. This is one of the important metrological characteristics of precise AC/DC transfer standard Fluke 79
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0574f77a4c9c689f7570bd471fd31355
https://doi.org/10.32684/2412-5288-2018-1-12-19-28
https://doi.org/10.32684/2412-5288-2018-1-12-19-28
Autor:
Valentyn Isaiev, State Enterprise 'All-Ukrainian State Scientific, Oleh Velychko, Consumer Protection
Publikováno v:
Key title Zbìrnik naukovih pracʹ Odesʹkoï deržavnoï akademìï tehnìčnogo regulûvannâ ta âkostì. :39-45
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5cfc97032d43b88f939cae4d42c8d2cd
https://doi.org/10.32684/2412-5288-2017-2-11-39-45
https://doi.org/10.32684/2412-5288-2017-2-11-39-45
Autor:
Valentyn Isaiev, Oleh Velychko
Publikováno v:
ACTA IMEKO. 10:6
The manuscript presents a method for the metrological characterisation of the commercial AC comparators used to calibrate current transformers. The theoretical basis for simulating the difference between two almost identical currents has been outline
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::883deb05f400a6007181d2e427e18650
https://doi.org/10.21014/acta_imeko.v10i2.918
https://doi.org/10.21014/acta_imeko.v10i2.918