Open AccessHydrogen Concentration Control in Oil-Filled Power Transformers Using Field Effect Capacitive Gas Sensors
Author(s) -
А. В. Литвинов,
Nikolay Samotaev,
Maya Etrekova,
Anastasia Ivanova,
Д. В. Филипчук
Publication year - 2021
Publication title -
journal of the electrochemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.258
H-Index - 271
eISSN - 1945-7111
pISSN - 0013-4651
DOI - 10.1149/1945-7111/abd5fb
Subject(s) - capacitive sensing , transformer oil , insulator (electricity) , transformer , materials science , semiconductor , hydrogen , electrical engineering , hydrogen sensor , analytical chemistry (journal) , optoelectronics , electronic engineering , engineering , chemistry , voltage , chromatography , palladium , biochemistry , organic chemistry , catalysis
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.