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:
Jun. 09, 2015

Filed:

Nov. 22, 2012
Applicant:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Inventor:

Takahiro Kase, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 3/36 (2006.01); H02H 7/26 (2006.01); H02H 3/30 (2006.01);
U.S. Cl.
CPC ...
H04B 3/36 (2013.01); H02H 7/263 (2013.01); H02H 3/305 (2013.01);
Abstract

In a protective relay device for a three-terminal transmission line comprising terminal A, terminal B and terminal C, when for example terminal information is transmitted to a protective relay Ry-A of one remote terminal (terminal A) from the protective relay Ry-C of the terminal C, terminal information Db that was sent from the protective relay Ry-B of another remote terminal (terminal B) is transmitted, in addition to the information Dc of the terminal in question. In the same way, when terminal information is transmitted to a protective relay Ry-B of the terminal B from the protective relay Ry-C of the terminal C, terminal information Da that was sent from the protective relay Ry-A of the terminal A is transmitted, in addition to the information Dc of the terminal in question.


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