JPS5474995A - Contol rod position abnormalty detector - Google Patents

Contol rod position abnormalty detector

Info

Publication number
JPS5474995A
JPS5474995A JP14110877A JP14110877A JPS5474995A JP S5474995 A JPS5474995 A JP S5474995A JP 14110877 A JP14110877 A JP 14110877A JP 14110877 A JP14110877 A JP 14110877A JP S5474995 A JPS5474995 A JP S5474995A
Authority
JP
Japan
Prior art keywords
control rod
lead
detector
signal
abnormalty
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
JP14110877A
Other languages
Japanese (ja)
Inventor
Atsuo Kawamura
Hiroyasu Hayakawa
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP14110877A priority Critical patent/JPS5474995A/en
Publication of JPS5474995A publication Critical patent/JPS5474995A/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

  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

PURPOSE: To make possible the detection of troubles of electric position detector including resolver or the like through a constant monitoring to clarify whether the signal from a position detector is present or not within a span having a constant range.
CONSTITUTION: Whenever any control rod is selected, a corresponding position signal is given to a comparator 36 from an AD convertor 35. The lead switches works as follows: if the first control rod is at a position of pulling, a lead switch S1 among the group of lead switches stays on. Thereafter, with the control rod further inserted, the insertion can be memorized up to a position of 300 mm from the position of full pulling. With further insertion thereof by 300 mm, a lead switch S2 is turned on, thereby memorizing the state. The output from the memory circuit is connected to a comparator 36 with which it is compared with a position signal from the AD convertor 35. When the output exceeds the specified value, an alarm device 38 is actuated.
COPYRIGHT: (C)1979,JPO&Japio
JP14110877A 1977-11-26 1977-11-26 Contol rod position abnormalty detector Pending JPS5474995A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14110877A JPS5474995A (en) 1977-11-26 1977-11-26 Contol rod position abnormalty detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14110877A JPS5474995A (en) 1977-11-26 1977-11-26 Contol rod position abnormalty detector

Publications (1)

Publication Number Publication Date
JPS5474995A true JPS5474995A (en) 1979-06-15

Family

ID=15284351

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14110877A Pending JPS5474995A (en) 1977-11-26 1977-11-26 Contol rod position abnormalty detector

Country Status (1)

Country Link
JP (1) JPS5474995A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5770497A (en) * 1980-10-21 1982-04-30 Tokyo Shibaura Electric Co Indicating system for reactor control rod position

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5770497A (en) * 1980-10-21 1982-04-30 Tokyo Shibaura Electric Co Indicating system for reactor control rod position

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