Diagnostics of the technical condition of transformers according to the color characteristics of transformer oil

Valiullina, D. M.; Il’yasova, Yu. K.; Козлов, В. К.

doi:10.1051/e3sconf/201912405001

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…The differences refer to the heating unit and the concentration of pollutants in waste oils collected. So, depending on the mentioned cases the layout of processes (heating, filtering, etc) will change but the treatment technologies are the same [32][33][34][35][36][37][38]. In the power transformer facilities, the service life of mineral insulating oils is up to 40 years typically.…”

Section: To Regeneration Technologymentioning

confidence: 99%

Transformer Oil Generation and Regeneration Techniques Based on Recent Developments (A Review)

Hassanpour

2021

Int. J. Petrol. Technol.

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With regard to the wide application of Transformer Oils (TO) as an energy stream on an industrial scale with fast progress towards green TO generation and regeneration technologies, the current review takes into investigation the TO generation industries based on the screening step of industrial projects by Iranian evaluator teams of in-charge organizations. The present review encompassed the TO generation and regeneration technologies from traditional, typical, and recently developed practices in this regard. The technologies extended to introduce green TO generation practices in connection with fossil fuel resources. By the way, a comparison has been done based on technologies posed for TO with the used motor oil reprocessing techniques and used lubricant oil regeneration technologies. To sum up, the current review comprised basic knowledge to select the best technologies for decision-making models in future industrial developments. The prominent achievement of the current review can be mentioned to the aggregation of industrial data for further processing in decision-making theory, criteria, and alternatives selections.

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Section: To Regeneration Technologymentioning

confidence: 99%

Transformer Oil Generation and Regeneration Techniques Based on Recent Developments (A Review)

Hassanpour

2021

Int. J. Petrol. Technol.

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“…Полученый четырехзвенный механизм имеет следующие параметры для реализации рабочего пятизвенного механизма [4,5]. Далее применим параметры 1 l = 90 мм, 2 l = 80,7 мм, из чего следует вывод, что все вышеуказанные звенья равны сторонам механизма (см.…”

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Kinematics of Bennett Mechanism, Negative Angular Velocity

Mustafaev¹,

Khabibullin²,

Faizov³

2022

Vestnik IzhGTU imeni M.T. Kalashnikova

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This article provides reasoning and research of spatial mechanisms. The creation of the first simple Bennett mechanism obtained through the pyramid of its base and sides is described. In the pyramid, the angles of inclination and heights of the sides are determined to obtain standard equalities. Thanks to all the parameters, the theoretical link lengths that have practical values are determined. All parameters of length and angles are presented on the structural diagram for each received mechanism. On the basis of two identical, but mirrored mechanisms, a five-bar Bennett mechanism is synthesized. The five-link mechanism is obtained by mutual integration of two identical links, for which the calculation method is described. The article contains a calculation to determine the length and angle of the frame. The frame is obtained by the specified parameters of the ghost angle, the parameters of the two mirrored links derived into one expression. The specified inequality is used for a five-link mechanism in which it is obtained by a driving and a driven full-turn link. The text defines the main kinematic parameters of the links that make a complete turn around its axis without contact. All parameters of the mechanism are metered intuitively. Principle kinematic parameters of the mechanism: angular displacement, angular velocity and angular acceleration are determined. The kinematics is determined with respect to the driving and driven link, taking into account the angular displacement, speed and acceleration. For a more accurate calculation, the dependence of the additional ghost angle of the mechanism on the kinematic parameters is considered. The obtained data are visualized using diagrams of relationships of the rotation of the input link to the output using the Maple application. In trigonometric functions, there is a negative and a positive value determined by the quadrants on the sectors of the circle. Diagrams of angular displacement and angular velocity according to the calculations show negative numerical values. The angular acceleration of the driven link during the rotation of a full turn of the driving link of the mechanism changes its acceleration 4 times. The analysis of the data obtained allows us to conclude that the driven link will rotate jerkily, at these moments there is a possibility of destruction of the mechanism and an increase in the load on the driven link and imbalance of the mechanism.

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Diagnostics of the technical condition of transformers according to the color characteristics of transformer oil

Cited by 2 publications

References 3 publications

Transformer Oil Generation and Regeneration Techniques Based on Recent Developments (A Review)

Transformer Oil Generation and Regeneration Techniques Based on Recent Developments (A Review)

Kinematics of Bennett Mechanism, Negative Angular Velocity

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