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1. (WO1991009404) CALIBRATION OF ROD POSITION INDICATORS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/009404 International Application No.: PCT/US1990/007282
Publication Date: 27.06.1991 International Filing Date: 10.12.1990
IPC:
G21C 7/12 (2006.01)
G PHYSICS
21
NUCLEAR PHYSICS; NUCLEAR ENGINEERING
C
NUCLEAR REACTORS
7
Control of nuclear reaction
06
by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
08
by displacement of solid control elements, e.g. control rods
12
Means for moving control elements to desired position
Applicants:
GINSBERG, Arthur, P. [US/US]; US
MOONEY, James, P. [US/US]; US
Inventors:
GINSBERG, Arthur, P.; US
MOONEY, James, P.; US
Agent:
HAFFNER, Alfred, L., Jr.; Brooks Haidt Haffner & Delahunty 99 Park Avenue New York, NY 10016, US
Priority Data:
451,10015.12.1989US
Title (EN) CALIBRATION OF ROD POSITION INDICATORS
(FR) ETALONNAGE D'INDICATEURS DE POSITION DE BARRES DE COMMANDE
Abstract:
(EN) The rod position indicator system of a pressurized nuclear reactor can be calibrated for one or more control rods without shutdown of the reactor. The procedure involves lowering reactor power to a level at which the control rod which appears to be misaligned can be fully inserted and its rod position indicator calibrated.
(FR) Le système d'indication de position des barres de commande dans un réacteur nucléaire pressurisé peut être calibré en ce qui concerne une ou deux barres de commande sans nécessiter l'arrêt du réacteur. Le procédé consiste à baisser la puissance du réacteur à une valeur permettant d'introduire complètement la barre de commande qui semble être mal alignée et d'étalonner son indicateur de position.
Designated States: BR, ES, JP, KR
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0483294