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Title:
ELECTRONIC PROTECTIVE RELAY DEVICE
Document Type and Number:
Japanese Patent JP2011044248
Kind Code:
A
Abstract:

To provide an electronic protective relay device capable of transmitting an accident occurrence information outside without time delay even during transmission of other pieces of information by inserting accident occurrence existence decision data into a communication message.

Communication protocol of a communication message transmitted outside from an electric line information transmission portion divides the communication message into units of one byte, inserts into each of the divided units a one-byte space portion for the accident information transmission, and transmits the accident occurrence information at a time of the accident occurrence by inserting the accident information into the space portion of the communication message.


Inventors:
YAMAZAKI HARUHIKO
NOMURA TOSHIMITSU
Application Number:
JP2009189984A
Publication Date:
March 03, 2011
Filing Date:
August 19, 2009
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H01H83/00; H02H3/04
Domestic Patent References:
JPH113647A1999-01-06
JP2006109550A2006-04-20
JP2004282856A2004-10-07
Attorney, Agent or Firm:
Masuo Oiwa
Toshihide Kodama
Takenaka Ikuo
Keigo Murakami



 
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