JPS52154056A - Supervisory unit for insulation deterioration of non-grounded wiring - Google Patents
Supervisory unit for insulation deterioration of non-grounded wiringInfo
- Publication number
- JPS52154056A JPS52154056A JP7157876A JP7157876A JPS52154056A JP S52154056 A JPS52154056 A JP S52154056A JP 7157876 A JP7157876 A JP 7157876A JP 7157876 A JP7157876 A JP 7157876A JP S52154056 A JPS52154056 A JP S52154056A
- Authority
- JP
- Japan
- Prior art keywords
- insulation deterioration
- supervisory unit
- grounded wiring
- insulation
- deteriorated
- 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.)
- Pending
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
PURPOSE: To eliminate a hazard caused by a deteriorated insulation, by making a detection with a sensitivity almost equal to or higher than that as in a case of only one line being deteriorated, even for a case that a deterioration is caused in both of the two lines of bus under a condition with the insulation resistance balanced in the same value.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7157876A JPS52154056A (en) | 1976-06-17 | 1976-06-17 | Supervisory unit for insulation deterioration of non-grounded wiring |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7157876A JPS52154056A (en) | 1976-06-17 | 1976-06-17 | Supervisory unit for insulation deterioration of non-grounded wiring |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS52154056A true JPS52154056A (en) | 1977-12-21 |
Family
ID=13464710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7157876A Pending JPS52154056A (en) | 1976-06-17 | 1976-06-17 | Supervisory unit for insulation deterioration of non-grounded wiring |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS52154056A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58118838U (en) * | 1982-02-05 | 1983-08-13 | 三菱電機株式会社 | Ground fault detector for ungrounded circuits |
-
1976
- 1976-06-17 JP JP7157876A patent/JPS52154056A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58118838U (en) * | 1982-02-05 | 1983-08-13 | 三菱電機株式会社 | Ground fault detector for ungrounded circuits |
JPH0134519Y2 (en) * | 1982-02-05 | 1989-10-20 |
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