FIELD: electrical engineering.
SUBSTANCE: device (1) contains a database (10) containing multiple class positions, the first class referring to corona discharge phase, and a unit (5) containing a device for measurement of electric current and electric voltage on an electric cable (2), means for filtration of measurement values and means for conversion of filtered measurement values into a digital form and formation of two segments of digital data as well as an information processing unit (8) containing means for processing each of the two segments with functions for formation of a final vector using the database (10) and means for output of a conclusion on electric arc presence or absence.
EFFECT: possibility to determine electric arc occurrence.
15 cl, 3 dwg
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