GB876028A - Improvements relating to control equipment for nuclear reactors - Google Patents

Improvements relating to control equipment for nuclear reactors

Info

Publication number
GB876028A
GB876028A GB26816/58A GB2681658A GB876028A GB 876028 A GB876028 A GB 876028A GB 26816/58 A GB26816/58 A GB 26816/58A GB 2681658 A GB2681658 A GB 2681658A GB 876028 A GB876028 A GB 876028A
Authority
GB
United Kingdom
Prior art keywords
rods
motor
motors
rod
group
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.)
Expired
Application number
GB26816/58A
Inventor
Leslie Carter Ludbrook
James Anthony Darke
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries 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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB26816/58A priority Critical patent/GB876028A/en
Publication of GB876028A publication Critical patent/GB876028A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C7/00—Control of nuclear reaction
    • G21C7/36—Control circuits
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C7/00—Control of nuclear reaction
    • G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
    • G21C7/08—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of solid control elements, e.g. control rods
    • G21C7/12—Means for moving control elements to desired position
    • 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

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

876,028. Control of several A.C. motors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 20, 1959 [Aug. 20, 1958], No. 26816/58. Class 38 (3). [Also in Group XL (a)] The movement of nuclear reactor control rods is controlled by supplying the rod-actuating motors sequentially, each with a predetermined number of cycles from a low frequency generator. A continuously rotating induction motor 21 drives the rotor 71 of an induction regulator through one of four clutches 28, 29, 35, 36 according to direction and speed required. The induction regulator is connected through transformers and biased rectifiers to provide outputs X, Y 90 degrees apart, with a neutral N, as described in Specification 842,649. A control circuit for the " odd " numbered rods is described, including transfer of low frequency supply from one motor (or group of motors) to the next by the closing of a cam-operated switch 57 when 400 cycles have been supplied. During lowering of the rods the movement is not interrupted, but during raising a further manual operation is necessary to start a newly connected motor (or group of motors). A second cam-operated switch 55 ensures that the induction regulator stops in the negative halfcycle. A limit switch operated by a rod at the top of its travel short circuits any motor attempting to overwind a rod, a free-wheel device protects when a motor attempts to lower a rod at the bottom. To shape the neutron flux pattern certain rods may be kept in position, their actuating motors being by-passed. To prevent rapid raising of the rods, an idler pinion 44 may be removed. Specifications 817,332, 820,460, 832,367, 833,532, 835,448 and 848,521 also are referred to.
GB26816/58A 1958-08-20 1958-08-20 Improvements relating to control equipment for nuclear reactors Expired GB876028A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB26816/58A GB876028A (en) 1958-08-20 1958-08-20 Improvements relating to control equipment for nuclear reactors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB26816/58A GB876028A (en) 1958-08-20 1958-08-20 Improvements relating to control equipment for nuclear reactors

Publications (1)

Publication Number Publication Date
GB876028A true GB876028A (en) 1961-08-30

Family

ID=10249694

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26816/58A Expired GB876028A (en) 1958-08-20 1958-08-20 Improvements relating to control equipment for nuclear reactors

Country Status (1)

Country Link
GB (1) GB876028A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1244307B (en) * 1964-11-23 1967-07-13 Siemens Ag Method and arrangement for controlling a nuclear reactor
GB2171242A (en) * 1985-02-19 1986-08-20 Westinghouse Electric Corp Improved control rod control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1244307B (en) * 1964-11-23 1967-07-13 Siemens Ag Method and arrangement for controlling a nuclear reactor
GB2171242A (en) * 1985-02-19 1986-08-20 Westinghouse Electric Corp Improved control rod control system

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