Method and device for deriving the concentration of a gas dissolved in an electrical insulation oil

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United States of America Patent

PATENT NO 8616045
APP PUB NO 20120291521A1
SERIAL NO

13521271

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Abstract

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A method for deriving the concentration of a gas dissolved in an electrical insulating oil (2) comprises the following steps:—preparing a membrane (5) permeable to the gas, interposed between a container (7) of the oil (2) and a measuring chamber (4) that receives a part of the gas through the membrane (5);—measuring the value of gas concentration in the measuring chamber (4);—deriving an estimated value of the concentration of the gas in the oil (2) as a function of the measured value,—the measuring step comprising taking at successive measuring instants a plurality of measurements of the values of gas concentration in the measuring chamber (4);—the deriving step comprising calculating the estimated value of gas concentration in the oil (2), at an instant selected from said measuring instants, according to a non-linear function of the values measured at the selected measuring instant and at one or more of the measuring instants preceding the one selected.

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TECHIMP HQ S R L40069 ZOLA PREDOSA (BO)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cavallini, Andrea San Pietro in Casale, IT 9 56
Ciani, Fabio Forlì, IT 2 16
Montanari, GianCarlo Casalecchio di Reno, IT 1 11
Serra, Stefano San Vittore Olona, IT 49 479

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