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.
Patent No.:
Date of Patent:
Jun. 11, 2013
Filed:
Mar. 18, 2011
Applicants:
Shigeo Iinuma, Misato, JP;
Masao Hori, Kawasaki, JP;
Satoshi Shinsyou, Kawaguchi, JP;
Inventors:
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H02H 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
There is provided a reclosing system for a power transmission line, which performs high-speed reclosing using protection relays. The protection relays are provided at different terminals of the power transmission line. Each of the protection relays is configured to send the reclosing command to the circuit breaker when a line voltage at the phase with the accident, detected by the metering voltage transformer after the phase with the accident is cut off, falls within an allowable range. The allowable range is determined based on a line voltage assumed at the phase when the phase is normal.