The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 21, 2023

Filed:

Jul. 07, 2020
Applicant:

Hitachi Energy Switzerland Ag, Baden, CH;

Inventors:

Juhani Ala-Toppari, Vaasa, FI;

Mika Norolampi, Vaasa, FI;

Markku Launonen, Vaasa, FI;

Janne Rissanen, Vaasa, FI;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 85/30 (2006.01); H01F 27/40 (2006.01);
U.S. Cl.
CPC ...
H01H 85/306 (2013.01); H01F 27/402 (2013.01); H01F 2027/404 (2013.01);
Abstract

An electrical assembly comprising a housing forming a liquid tank inside thereof, dielectric liquid in the liquid tank, at least one fuse, and a blown fuse indication system. Each of the fuses is immersed in the dielectric liquid, and is provided with a striker pin. The blown fuse indication system is adapted to indicate a blowout of any one of the fuses by an indication signal. The blown fuse indication system comprises a first indication member and a second indication member. The first indication member is movable by the striker pins. The second indication member is immovably connected to the housing, and adapted to generate the indication signal as a response to relative movement between the first indication member and the second indication member.


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