Title:
ディジタル形保護制御装置
Document Type and Number:
Japanese Patent JP4227177
Kind Code:
B2
Abstract:
A digital protection and control device is so configured that at least parts of a digital data merging unit coupled to sensor units by a transmission medium, a protection and control unit, a communication unit for component control devices coupled to component control devices by a transmission medium, and a process bus communication unit are coupled by a parallel transmission medium, and at least a part of data exchange is based on a multimaster mode. Transmission based on the multimaster mode enables each unit to transmit/receive data independently and enables the reduction in unbalanced communication load. As a result, such a risk can be reduced that time responsiveness of operation is lowered as the entire digital protection and control device due to unbalanced concentration of data bus processing in a particular unit.
Inventors:
Yuji Minami
Kizen Suga
Hiromi Nagasaki
Masayuki Kosakada
Kizen Suga
Hiromi Nagasaki
Masayuki Kosakada
Application Number:
JP2007025401A
Publication Date:
February 18, 2009
Filing Date:
February 05, 2007
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
H02H3/02; G05B19/418; H02H1/00; H02J3/00; H02J13/00
Domestic Patent References:
| JP2002315233A | ||||
| JP2002152972A | ||||
| JP1202113A | ||||
| JP2000029822A | ||||
| JP63305715A | ||||
| JP63080634A | ||||
| JP63053652A |
Attorney, Agent or Firm:
Saichi Suyama
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