JPS53139153A - Power abnormality detection lock device - Google Patents

Power abnormality detection lock device

Info

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
Application number
JP5473777A
Other languages
Japanese (ja)
Other versions
JPS5613090B2 (en
Inventor
Sunao Suzuki
Genzaburo Kotani
Zenkei Shiotani
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP5473777A priority Critical patent/JPS53139153A/en
Publication of JPS53139153A publication Critical patent/JPS53139153A/en
Publication of JPS5613090B2 publication Critical patent/JPS5613090B2/ja
Granted legal-status Critical Current

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
JP5473777A 1977-05-11 1977-05-11 Power abnormality detection lock device Granted JPS53139153A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4924002A (en) * 1972-06-24 1974-03-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
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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