Electrical breakdown strength of interfaces between solid insulation and transformer oil with variable water content

Hasheminezhad, M.; Ildstad, Erling; Nysveen, Arne

doi:10.1109/ceidp.2008.4772816

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…Similar conclusions were reached with another composite insulating system consisting of UOPE/DDB oil [33][34][35]. In [38], the problem of solid/liquid combination was attacked from another angle, namely that of the interface and also in terms of the water content. It was concluded that the breakdown voltage is reduced more dramatically when temperature is low and water content is also low.…”

Section: Impregnation Effectsupporting

confidence: 57%

Some Factors Affecting the Breakdown Strength of Solid Dielectrics: A Short Review

Danikas

Vardakis

Sarathi

2020

Eng. Technol. Appl. Sci. Res.

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Section: Impregnation Effectsupporting

confidence: 57%

Some Factors Affecting the Breakdown Strength of Solid Dielectrics: A Short Review

Danikas

Vardakis

Sarathi

2020

Eng. Technol. Appl. Sci. Res.

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“…In [17], the breakdown voltage of transformer oil is compared according to relative humidity and temperature values. In [18], the water content values corresponding to the relative humidity values of mineral, natural ester and synthetic ester oils used in transformers were investigated.…”

Section: Introduction *mentioning

confidence: 99%

Breakdown Voltage Estimation in Transformer Oils with Low-Cost Humidity Sensor

Güneş,

Tekin,

Alboyacı

et al. 2024

Kocaeli Journal of Science and Engineering

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The relative humidity and temperature of the oil used for insulation purposes in transformers directly affect the breakdown voltage of the oil and accordingly the life of the transformer. Continuous monitoring of the moisture content and breakdown voltage of the transformer oil provides the basis for predictive maintenance practices. In this study, it is aimed to develop a sensor to continuously monitor the moisture content of the insulating oil and to calculate the breakdown voltage approximately. In this context, firstly, measurements were taken with an industrial oil monitoring sensor which calculates the breakdown voltage in transformer oils with high accuracy and was verified with laboratory measurements. At the same time, EE364 by E+E and SHT10 by Sensirion also used for temperature and humidity measurements. By comparing the measured data with each other, a relationship was formulated between the humidity and temperature values and the breakdown voltage. As a result, an approximate breakdown voltage calculation method that can be used considering the characteristic parameters of transformer oil has been introduced. Thus, a cost-effective function has been developed that can be widely used for transformer monitoring systems.

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Electrical breakdown strength of interfaces between solid insulation and transformer oil with variable water content

Cited by 2 publications

References 3 publications

Some Factors Affecting the Breakdown Strength of Solid Dielectrics: A Short Review

Some Factors Affecting the Breakdown Strength of Solid Dielectrics: A Short Review

Breakdown Voltage Estimation in Transformer Oils with Low-Cost Humidity Sensor

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