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:
Apr. 12, 2022

Filed:

Feb. 04, 2019
Applicant:

Siemens Energy As, Oslo, NO;

Inventor:

Sivert Eliassen, Drammen, NO;

Assignee:

SIEMENS ENERGY AS, Oslo, NO;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/396 (2019.01); G01R 31/392 (2019.01); G01R 31/52 (2020.01); H02H 1/00 (2006.01); H02H 3/16 (2006.01);
U.S. Cl.
CPC ...
G01R 31/396 (2019.01); G01R 31/392 (2019.01); G01R 31/52 (2020.01); H02H 1/0007 (2013.01); H02H 3/16 (2013.01);
Abstract

A method of ground fault detection in a power distribution system includes detecting a ground fault in the power distribution system; sending an instruction to a first switching device to disconnect a first energy storage unit from the energy storage system whilst the remaining energy storage units remain connected in parallel to the DC bus to be able to continue to supply power to the power distribution system and testing again for a ground fault. The testing for a ground fault is carried out again and disconnecting, testing and reconnecting steps are repeated until the ground fault has been identified, or all energy storage units have been tested.


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