JPS56168508A - Warning indicator - Google Patents

Warning indicator

Info

Publication number
JPS56168508A
JPS56168508A JP7320080A JP7320080A JPS56168508A JP S56168508 A JPS56168508 A JP S56168508A JP 7320080 A JP7320080 A JP 7320080A JP 7320080 A JP7320080 A JP 7320080A JP S56168508 A JPS56168508 A JP S56168508A
Authority
JP
Japan
Prior art keywords
warning data
occurance
order
circuit
data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7320080A
Other languages
Japanese (ja)
Inventor
Kazuo Nishizawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7320080A priority Critical patent/JPS56168508A/en
Publication of JPS56168508A publication Critical patent/JPS56168508A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Indicating Measured Values (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Alarm Systems (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

PURPOSE: To facilitate the investigation of causes of troubles through determination and indication of caustic relationship of the troubles at nuclear power plants or the like by checking actual warnings up on a fault tree with respect to a trip of a main equipment preanalyzed.
CONSTITUTION: The process data from a plant 8 is inputted into a selection circuit 1 as a warning data by way of a controller 7, which selects one necessary data from among all warning data. A memory 2 memorizes the warning data selected through the selection circuit 1 in the order or occurance. A checking circuit 3 checks the warning data memorized in the memory up on a fault tree prememorized to determine whether the input exists or not. At the same time, the order of occurance is checked between the warning data to determine the caustic orientation thereof. An indication controlling circuit 4 provides the output from the checking circuit 3 to an indicator 5 at a proper cycle sequentially in the order of occurance.
COPYRIGHT: (C)1981,JPO&Japio
JP7320080A 1980-05-30 1980-05-30 Warning indicator Pending JPS56168508A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7320080A JPS56168508A (en) 1980-05-30 1980-05-30 Warning indicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7320080A JPS56168508A (en) 1980-05-30 1980-05-30 Warning indicator

Publications (1)

Publication Number Publication Date
JPS56168508A true JPS56168508A (en) 1981-12-24

Family

ID=13511261

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7320080A Pending JPS56168508A (en) 1980-05-30 1980-05-30 Warning indicator

Country Status (1)

Country Link
JP (1) JPS56168508A (en)

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