JPS54106785A - Control rod driver with electric preventer against wrong scram - Google Patents

Control rod driver with electric preventer against wrong scram

Info

Publication number
JPS54106785A
JPS54106785A JP1246378A JP1246378A JPS54106785A JP S54106785 A JPS54106785 A JP S54106785A JP 1246378 A JP1246378 A JP 1246378A JP 1246378 A JP1246378 A JP 1246378A JP S54106785 A JPS54106785 A JP S54106785A
Authority
JP
Japan
Prior art keywords
scram
control rod
lock
electric
preventer
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.)
Granted
Application number
JP1246378A
Other languages
Japanese (ja)
Other versions
JPS6120832B2 (en
Inventor
Masao Miyabe
Takashi Kidoi
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 JP1246378A priority Critical patent/JPS54106785A/en
Publication of JPS54106785A publication Critical patent/JPS54106785A/en
Publication of JPS6120832B2 publication Critical patent/JPS6120832B2/ja
Granted 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)
  • Actuator (AREA)

Abstract

PURPOSE: To prevent the scram from being caused by the drop-off of a control rod driving shaft due to a trouble, by providing in an optional position within the range of motion of a control rod driver a means for automatically operating a wrong scram preventer.
CONSTITUTION: The electric wrong scram preventer comprises a scram lock-up casing 28 engaged with a latch push plate 13, scram lock-up claws 26 pivoted to support rods 27, and a grabbed annular projection 30 provided on the upper end of the control rod driving shaft 14. When an electromagnet 10 is energized, the grabbed annular projection is set in such a position that the scram can be locked up. Then, the scram lock-up casing 28 moves upward and the scram lock-up claws 26 hold the annular projection 30 of the control rod driving shaft 14 to prevent the shaft 14 from dropping off.
COPYRIGHT: (C)1979,JPO&Japio
JP1246378A 1978-02-08 1978-02-08 Control rod driver with electric preventer against wrong scram Granted JPS54106785A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1246378A JPS54106785A (en) 1978-02-08 1978-02-08 Control rod driver with electric preventer against wrong scram

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1246378A JPS54106785A (en) 1978-02-08 1978-02-08 Control rod driver with electric preventer against wrong scram

Publications (2)

Publication Number Publication Date
JPS54106785A true JPS54106785A (en) 1979-08-22
JPS6120832B2 JPS6120832B2 (en) 1986-05-23

Family

ID=11806043

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1246378A Granted JPS54106785A (en) 1978-02-08 1978-02-08 Control rod driver with electric preventer against wrong scram

Country Status (1)

Country Link
JP (1) JPS54106785A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5892891A (en) * 1981-11-27 1983-06-02 株式会社東芝 Control rod drive mechanism
US4476088A (en) * 1979-10-30 1984-10-09 Nuclear Power Company Limited Latching devices and nuclear reactors incorporating such latching devices

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4476088A (en) * 1979-10-30 1984-10-09 Nuclear Power Company Limited Latching devices and nuclear reactors incorporating such latching devices
JPS5892891A (en) * 1981-11-27 1983-06-02 株式会社東芝 Control rod drive mechanism
JPH0221554B2 (en) * 1981-11-27 1990-05-15 Tokyo Shibaura Electric Co

Also Published As

Publication number Publication date
JPS6120832B2 (en) 1986-05-23

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