Protection of a surge arrester with a better protection against failure from thermal overload in case of a temporary overvoltage in an electrical grid line

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11322934
APP PUB NO 20180076617A1
SERIAL NO

15703524

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Importance

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Abstract

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This present application concerns a method for preventing an electrical grid from a failure in case of a temporary overvoltage. A method comprising: a) providing an electrical grid line, a surge arrester and a disconnector device with a disconnector unit; b) connecting the surge arrester at one terminal to the electrical grid line; c) connecting the surge arrester at its other terminal to a second terminal of the disconnector device; d) connecting a first terminal of the disconnector device to ground potential; e) interrupting the electrical connection in between the electrical grid line and the ground potential in case of a temporary overvoltage; f) protecting the surge arrester from failure due to a thermal overload caused by the temporary overvoltages by operating the disconnector device before the surge arrester fails due to a thermal overload of the surge arrester.

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Patent Owner(s)

Patent OwnerAddress
HITACHI ENERGY LTD8050 ZÜRICH

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Antelo, Joel Olten, CH 4 23
Boese, Ronald Wettingen, CH 3 17
Gariboldi, Nicola Nussbaumen, CH 12 56
Mugwyler, Remo Pittsburgh, US 7 23

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