Operation analyzing device for control rod drives
Creators
- 1. Mitsubishi Heavy Industries Ltd., Tokyo (Japan)
Description
The present invention concerns an operation analyzing device of electromagnetic driving type control rod drives (CRDM). The device comprises a detector for detecting operation sounds, an impact amplifier, a pre-treatment device and a calculation device for analyzing the operation factors of current signals and detection signals. This can analyze the characteristics of coil currents and the operation sounds of the control rod drives automatically, at a high speed and accurately. When an operation abnormality is judged, a rapid and accurate countermeasures can be applied. Further, a CRDM operation signal is analyzed periodically by utilizing a CRDM operation confirmation test upon periodical inspection, a monthly inspection during PWR operation or the like, and it is processed statistically to be used for preventive safety insurance of the CRDM driving system. (I.S.)
Availability note (English)
Available from JAPIO. Also available from INPADOC.Additional details
Publishing Information
- Imprint Pagination
- 7 p.
- IPC:
- Int. Cl. G21C17/10.
- IPC
- Int. Cl. G21C17/10.
- Patent number
- JP patent document 2-205798/A/
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 22029337
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Resource subtype / Literary indicator
- Non-conventional Literature
- Descriptors DEI
- ACOUSTIC MONITORING; CONTROL ELEMENTS; CONTROL ROD DRIVES; ELECTRIC COILS; ELECTRIC CURRENTS; ELECTROMAGNETS; PWR TYPE REACTORS; REACTOR CONTROL SYSTEMS
- Descriptors DEC
- CONTROL SYSTEMS; CURRENTS; ELECTRICAL EQUIPMENT; ENRICHED URANIUM REACTORS; EQUIPMENT; MAGNETS; MONITORING; POWER REACTORS; REACTOR COMPONENTS; REACTORS; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS
Optional Information
- Secondary number(s)
- JP patent application 1-23665.