Investigation of the sensitivity of MIS-sensor to thermal decomposition products of cables insulation

Filipchuk, D. V.; Литвинов, А. В.; Etrekova, Maya; Nozdrya, D. A.

doi:10.1088/1742-6596/941/1/012061

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“…The response time dependence on temperature is determined by the processes of gas molecules adsorption on the solids surface 36 and can be corrected using software. In works 37,38 it is shown how the influence of humidity can be successfully compensated.…”

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confidence: 99%

Hydrogen Concentration Control in Oil-Filled Power Transformers Using Field Effect Capacitive Gas Sensors

Литвинов

Samotaev

Etrekova

et al. 2021

J. Electrochem. Soc.

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A simple method is demonstrated for hydrogen concentrations measurement directly in transformer oil and in the gas space above it use a highly sensitive (at the level of units and fractions of ppm) gas sensor based on a metal-insulator-semiconductor capacitive structure (MIS sensor). The results obtained can be used in online monitoring systems and predicting the power transformers integral performance, in particular those that have been put into operation long ago, by tracking slow and invisible at the initial stage aging processes of current-carrying connections and structural elements.

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confidence: 99%