Analysis of the modern methods of the power transformers health index calculation

Давиденко, І. В.; Kuzina, Tatyana S.

doi:10.1109/eiconrus.2017.7910856

Cited by 10 publications

(4 citation statements)

References 6 publications

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“…A higher total dry matter content in potatoes leads to increased yield in potato products due to lower oil absorption during the cooking process [74] and enhanced resistance to darkening of the raw pulp [75][76][77]. A low mass fraction of reducing sugars in potatoes helps prevent the darkening of the final product and the development of a bitter aftertaste, which can negatively impact consumer perception [78][79][80]. These qual-ity indicators are influenced by various factors, including genotype, climatic conditions, soil type, fertilizer use, and the duration of the growing season [71,81].…”

Section: Discussionmentioning

confidence: 99%

The Potential of Hydroponic Seed Minituber Enrichment with the Endophyte Bacillus subtilis for Improving the Yield Components and Quality of Potato (Solanum tuberosum L.)

Pusenkova,

Lastochkina,

Ercişli

2023

Agriculture

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This study examined the potential of using the endophytic bacteria Bacillus subtilis (10-4 and 26D) to enrich hydroponically grown potato seed minitubers (Solanum tuberosum L. cv. Bashkirsky) to improve plant growth, photosynthetic pigments, yield, and quality parameters, including nutritional value (i.e., macro-/microelements, vitamin C, anthocyanins). Potato seed minitubers, obtained from in-vitro-grown microplants in a hydroponic system, were inoculated with endophytic B. subtilis and subsequently grown in pots under controlled conditions. The results demonstrated the successful colonization of seed minitubers by B. subtilis, with subsequent distribution into growing plants (roots, shoots). The endophytes accelerated the plant’s phenological shifts, resulting in earlier emergence of sprouts, budding, and flowering compared with control plants. They also had increased leaf photosynthetic pigments (chlorophyll (Chl) a, Chl b, and carotenoids), total leaf area, and positively influenced leaf proline contents. The height of plants and number of stems per plant did not change significantly upon endophyte treatment, but improved root growth was observed throughout the experiment. As a result of endophyte application, there was an increase in stolon weight, number and size of tubers, and overall tuber yield. There were no significant differences in terms of total dry matter and starch content of the tubers compared to the control group, but the sugar levels decreased and the size of the starch grains was larger in endophyte-treated tubers. Furthermore, endophyte treatment resulted in an increased accumulation of nutrients including N, P, K, Cu, and Fe, as well as vitamin C and anthocyanins in harvested tubers. These findings indicate that colonization of hydroponically grown potato seed minitubers with endophytic B. subtilis (10-4 and 26D) before planting has great potential as an eco-friendly approach to obtain higher-quality seeds and to increase tuber yield and nutritional value in field conditions.

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Section: Discussionmentioning

confidence: 99%

The Potential of Hydroponic Seed Minituber Enrichment with the Endophyte Bacillus subtilis for Improving the Yield Components and Quality of Potato (Solanum tuberosum L.)

Pusenkova,

Lastochkina,

Ercişli

2023

Agriculture

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“…For transformer health assessment, several main techniques are studied such as fuzzy logic, machine learning, and health index calculation. The health index calculation method needs to be integrated with experience parameters, and it is difficult to deliver accurate results [37]. Machine learning could provide high accuracy results but requires large amounts of historical data of the transformer [38].…”

Section: The Online Monitoring System For Service Transformersmentioning

confidence: 99%

A Low-Cost Online Health Assessment System for Oil-Immersed Service Transformers Using Real-Time Grid Energy Monitoring

et al. 2022

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In this paper, we present a low-cost health assessment system for oil-immersed service transformers using a monitoring device to measure energy in real time. By assessing the important level of transformer components, three indicators, top oil temperature, vibration, and transformer load, were selected as main indicators to investigate the service transformer’s condition. An evaluation system using Fuzzy logic method is also presented in the paper to support monitor transformer health without adding the extra cost of installing expensive sensors. Different testing scenarios with different case studies were carried out on a simulated 50 kVA oil-immersed service transformer to express the feasibility and effectiveness of this low-cost, fast response health assessment system.

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“…It is particularly important with the advent of higher penetrations of distributed PV, electric vehicles, and other energy resources that are rapidly changing the operation of the grid and have the potential to introduce added stress to service transformers. Several studies proposed various methods of establishing health indices for power transformers from the available measurement techniques [28][29][30][31]. Many of these methods can be applied to distribution transformers because the underlying working principles and key components are the same.…”

Section: Transformer Health Assessment Techniquesmentioning

confidence: 99%

A Review of Health Assessment Techniques for Distribution Transformers in Smart Distribution Grids

et al. 2020

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Due to the large number of distribution transformers in the distribution grid, the status of distribution transformers plays an important role in ensuring the safe and reliable operation of the these grids. To evaluate the distribution transformer health, many assessment techniques have been studied and developed. These tools will support the transformer operators in predicting the status of the distribution transformer and responding effectively. This paper will review the literature in the area, analyze the latest techniques as well as highlight the advantages and disadvantages of current methodologies.

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Analysis of the modern methods of the power transformers health index calculation

Cited by 10 publications

References 6 publications

The Potential of Hydroponic Seed Minituber Enrichment with the Endophyte Bacillus subtilis for Improving the Yield Components and Quality of Potato (Solanum tuberosum L.)

The Potential of Hydroponic Seed Minituber Enrichment with the Endophyte Bacillus subtilis for Improving the Yield Components and Quality of Potato (Solanum tuberosum L.)

A Low-Cost Online Health Assessment System for Oil-Immersed Service Transformers Using Real-Time Grid Energy Monitoring

A Review of Health Assessment Techniques for Distribution Transformers in Smart Distribution Grids

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