JPS54154055A - Malfunction detector of power switching device - Google Patents
Malfunction detector of power switching deviceInfo
- Publication number
- JPS54154055A JPS54154055A JP6296778A JP6296778A JPS54154055A JP S54154055 A JPS54154055 A JP S54154055A JP 6296778 A JP6296778 A JP 6296778A JP 6296778 A JP6296778 A JP 6296778A JP S54154055 A JPS54154055 A JP S54154055A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- magnetic field
- passing
- filter
- point
- 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
Abstract
PURPOSE: To discriminate shorted point by operating magnetic field caused by a current flowing through a high voltage conductor and predetermined low magnetic field at an iron core saturated higher than predetermined magnetic field and detecting only the component of the low magnetic field of the voltage inducted in a secondary coil wound on the iron core.
CONSTITUTION: The induced voltage Es of secondary coil when a shortage occurs dut to certain cause between a point D of a metallic container 2-2 and a point C of a conductor 1 and a voltage Efs after passing through a filter 8 become very low at the portion saturated at the voltage Es as shown by g in a view, and the voltage Efs after passing the filter 8 also becomes very low during the zone as shown by h in a view. Accordingly, the shortage occurring position can be clarified by observing the voltage waveform after passing the filter.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6296778A JPS54154055A (en) | 1978-05-25 | 1978-05-25 | Malfunction detector of power switching device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6296778A JPS54154055A (en) | 1978-05-25 | 1978-05-25 | Malfunction detector of power switching device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54154055A true JPS54154055A (en) | 1979-12-04 |
Family
ID=13215606
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6296778A Pending JPS54154055A (en) | 1978-05-25 | 1978-05-25 | Malfunction detector of power switching device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54154055A (en) |
-
1978
- 1978-05-25 JP JP6296778A patent/JPS54154055A/en active Pending
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