Розроблено структуру діагностичного комплексу для випробувань електричних машин на надійність, що забезпечує
необхідні режими роботи при варіюванні температурних і вібраційних факторів. Запропонований комплекс є уніфікованим та дозволяє враховувати дійсний стан досліджуваної машини, а режими випробувань не порушують фізику
процесів старіння і зношування конструктивних вузлів та матеріалів.
Разработана структура диагностического комплекса для испытаний электрических машин на надежность, обеспечивающего необходимые режимы роботы при варьировании температурных и вибрационных факторов. Предложенный
комплекс является унифицированным и позволяет учитывать действительное состояние исследуемой машины, а режимы испытаний не нарушают физики процессов старения и износа конструктивных узлов и материалов.
Purpose. To develop a diagnostic complex meeting the criteria
and requirements for carrying out accelerated reliability test and
realizing the basic modes of electric machines operation and performance of the posed problems necessary in the process of such
test. Methodology. To determine and forecast the indices of electric machines reliability in accordance with the statistic data of
repair plants we have conditionally divided them into structural
parts that are most likely to fail. We have preliminarily assessed
the state of each of these parts, which includes revelation of faults
and deviations of technical and geometric parameters. We have
determined the analyzed electric machine controlled parameters
used for assessment of quantitative characteristics of reliability of
these parts and electric machines on the whole. Results. As a
result of the research, we have substantiated the structure of a
computerized complex for electric machines reliability test. It
allows us to change thermal and vibration actions without violation of the physics of the processes of aging and wearing of the
basic structural parts and elements material. The above mentioned makes it possible to considerably reduce time spent on
carrying out electric machines reliability tests and improve trustworthiness of the data obtained as a result of their performance.
Originality. A special feature of determination of the controlled
parameters consists in removal of vibration components in the
idle mode and after disconnection of the analyzed electric machine from the power supply with the aim of singling out the vibration electromagnetic component, fixing the degree of sparking
and bend of the shaft by means of phototechnique and local determination of structural parts temperature provided by corresponding location of thermal sensors. Practical value. We have
offered a scheme of location of thermal and vibration sensors,
which allows improvement of parameters measuring accuracy due
to determination of the spatial vector of vibration and local temperatures of structural parts.
