Capacitance method of monitoring insulation dryness of an electr

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage

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Details

31715762, 324 61R, G01R 2726, G01R 3112

Patent

active

039612465

ABSTRACT:
Model insulation structure representative of the most critical insulation in a stationary induction apparatus is placed in the bottom of the oil tank and is provided with spaced conductive electrodes forming a capacitor having sufficient capacitance for measuring the dissipation or power factor of the insulation.

REFERENCES:
patent: 1371378 (1921-03-01), Klauber
patent: 2679026 (1954-05-01), Frakes
patent: 2899635 (1959-08-01), Yardney
patent: 2976720 (1961-03-01), Callahan
patent: 2985826 (1961-05-01), Fluegel
patent: 3753092 (1973-08-01), Ludlow et al.

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