Control rod position monitoring device
Description
In a control rod position monitoring device for monitoring troubles at a control rod positionand for outputting trouble display continuously till the recovery thereof, the trouble display output can not be reset while the trouble remains unrecovered. However, a nuclear reactor for electric power generation contains nearly 200 control rods and if second trouble occurs in addition to the initial trouble, it cause a disadvantage that the occurrence of the second trouble can not be informed to an operator, since the trouble output is already set to ON. Then, operator's display reset oepration information is inputted to form an output display inhibit signal, so that the trouble output display is interrupted even if the first trouble is not recovered. A circuit for detecting the change of the condition when each of the trouble monitoring outputs changes from normal to abnormal is added, to cancel the trouble output display, thereby enabling to display trouble output. In this way, occurrence of the second trouble can be informed to an operator. (N.H.)
Availability note (English)
Available from JAPIO. Also available from INPADOC.Additional details
Publishing Information
- Imprint Pagination
- 5 p.
- IPC:
- Int. Cl. G21C17/00.
- IPC
- Int. Cl. G21C17/00.
- Patent number
- JP patent document 3-246493/A/
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 23048944
- Subject category
- S22: GENERAL STUDIES OF NUCLEAR REACTORS;
- Resource subtype / Literary indicator
- Non-conventional Literature
- Descriptors DEI
- CONTROL ELEMENTS; DETECTION; DISPLAY DEVICES; ENTRY CONTROL SYSTEMS; MONITORS; PHYSICAL PROTECTION DEVICES; POSITIONING; REACTOR INSTRUMENTATION; REACTOR OPERATORS; RELIABILITY
- Descriptors DEC
- COMPUTER OUTPUT DEVICES; COMPUTER-GRAPHICS DEVICES; MEASURING INSTRUMENTS; PERSONNEL; REACTOR COMPONENTS
Optional Information
- Secondary number(s)
- JP patent application 2-42676.