JPS53139153A - Power abnormality detection lock device - Google Patents
Power abnormality detection lock deviceInfo
- Publication number
- JPS53139153A JPS53139153A JP5473777A JP5473777A JPS53139153A JP S53139153 A JPS53139153 A JP S53139153A JP 5473777 A JP5473777 A JP 5473777A JP 5473777 A JP5473777 A JP 5473777A JP S53139153 A JPS53139153 A JP S53139153A
- Authority
- JP
- Japan
- Prior art keywords
- abnormality detection
- lock device
- power abnormality
- detection lock
- potential
- 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
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
PURPOSE: To forcedly lock a protective cut off device and eliminate the malfunction at control power voltage abnormality by inducing arbitrary potential from the difference voltage of positive and negative voltage and detecting this potential.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5473777A JPS53139153A (en) | 1977-05-11 | 1977-05-11 | Power abnormality detection lock device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5473777A JPS53139153A (en) | 1977-05-11 | 1977-05-11 | Power abnormality detection lock device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS53139153A true JPS53139153A (en) | 1978-12-05 |
JPS5613090B2 JPS5613090B2 (en) | 1981-03-26 |
Family
ID=12979091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5473777A Granted JPS53139153A (en) | 1977-05-11 | 1977-05-11 | Power abnormality detection lock device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS53139153A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4525041A (en) * | 1982-02-24 | 1985-06-25 | Precision Grinding Limited | Arrangement for use in positioning an optical image |
JPH0243788U (en) * | 1988-09-21 | 1990-03-26 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4924002A (en) * | 1972-06-24 | 1974-03-04 |
-
1977
- 1977-05-11 JP JP5473777A patent/JPS53139153A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4924002A (en) * | 1972-06-24 | 1974-03-04 |
Also Published As
Publication number | Publication date |
---|---|
JPS5613090B2 (en) | 1981-03-26 |
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