Title:
【発明の名称】ディジタル保護継電器
Document Type and Number:
Japanese Patent JP2677722
Kind Code:
B2
Abstract:
A digital protective relay apparatus comprising an analog input section, a correction value-calculating section, a storage section, a correction section, a protective calculation section. A correction value for correcting the error of the analog input section is predetermined and stored in the storage section. Digital data obtained through the analog input circuit is corrected by the correction section using the correction value. The protective calculation section performs predetermined calculation using the corrected digital data, thereby determining whether or not a trip instruction should be supplied to a breaker.
Inventors:
Nishitani Taishu
Application Number:
JP16559791A
Publication Date:
November 17, 1997
Filing Date:
July 05, 1991
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
H02H3/02; G01R19/25; G01R35/00; H02H3/00; (IPC1-7): H02H3/02
Domestic Patent References:
| JP63305715A |
Attorney, Agent or Firm:
Inomata Shoaki