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(19)

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2 764 003

(13)

(51)

IPC

H02H3/16(2006-01-01)

H02H7/04(2006-01-01)

(21) (22)

Application

2021117124, 2021-06-11

(24)

Start date

2021-06-11

(22)

Actual filing date

2021-06-11

(45)

Published

2022-01-12

(72)

Inventor

Kudriashova Mariia NikolaevnaAntonov Vladislav IvanovichNaumov Vladimir AleksandrovichSoldatov Aleksandr ViacheslavovichIvanov Nikolai Gennadevich

(73)

Holder

Obshchestvo S Ogranichennoi Otvetstvennostiu Nauchno-Proizvodstvennoe Predpriiatie

METHOD FOR PROTECTION AGAINST INTERMITTENT ARCING FAULT IN AN ELECTRICAL NETWORK WITH AN ISOLATED OR COMPENSATED NEUTRAL Russian patent published in 2022 - IPC H02H3/16 H02H7/04

Abstract RU 2764003 C1

FIELD: electrical engineering.

SUBSTANCE: invention relates to the field of electrical engineering, in particular to relay protection of electrical networks. The expected result is achieved by the fact that the input electrical value of each phase is converted into a controlled signal with a given characteristic and amplitude proportional to the peak value of the intermittent circuit pulse current, and a classifying signal is created on its basis. Then a preset comparison threshold is used to control the level of the largest of the classifying signals, while an additional actuation signal is introduced for intermittent arcing faults that are on the verge of transition to a stable closure.

EFFECT: increase in the reliability of detecting an intermittent arcing fault.

8 cl, 15 dwg

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RU 2 764 003 C1

Authors

Kudriashova Mariia Nikolaevna

Antonov Vladislav Ivanovich

Naumov Vladimir Aleksandrovich

Soldatov Aleksandr Viacheslavovich

Ivanov Nikolai Gennadevich

Dates

2022-01-12—Published

2021-06-11—Filed