JPS54146913A - In-phase current detector circuit - Google Patents
In-phase current detector circuitInfo
- Publication number
- JPS54146913A JPS54146913A JP5451578A JP5451578A JPS54146913A JP S54146913 A JPS54146913 A JP S54146913A JP 5451578 A JP5451578 A JP 5451578A JP 5451578 A JP5451578 A JP 5451578A JP S54146913 A JPS54146913 A JP S54146913A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- phase current
- detector circuit
- induced current
- magnetic flux
- 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
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
PURPOSE: To insulate electrically a line and a detector circuit to make it possible to detect the induced current including DC by using a Hall element as the detector circuit in the in-phase current detector circuit which detects the induction trouble of the metallic transmission line.
CONSTITUTION: When induction indicated by the dotted line is received by cable 3, the induced current is flowed to the earth through in-phase current suppression coil 8' and equivalent longitudinal circuit impedance 11 which is connected to the neutral point of in-phase current suppression coil 8'. At this time, a part of the magnetic flux generated by windings 9' and 10' of coil 8' becomes a leakage magnetic flux and is coupled with Hall IC circuit 12. Consequently, a voltage corresponding to the induced current is generated across output terminals 13 and 14 of circuit 12. This voltage is amplified by amplifier 15 and is indicated by output meter 17. As a result, the detection in a wide measurement range from DC to a high frequency is possible because the Hall element is used for the detection of the induced current.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5451578A JPS54146913A (en) | 1978-05-10 | 1978-05-10 | In-phase current detector circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5451578A JPS54146913A (en) | 1978-05-10 | 1978-05-10 | In-phase current detector circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54146913A true JPS54146913A (en) | 1979-11-16 |
Family
ID=12972775
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5451578A Pending JPS54146913A (en) | 1978-05-10 | 1978-05-10 | In-phase current detector circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54146913A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03176674A (en) * | 1989-12-05 | 1991-07-31 | Hiroshi Seki | Checker of electric leak |
-
1978
- 1978-05-10 JP JP5451578A patent/JPS54146913A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03176674A (en) * | 1989-12-05 | 1991-07-31 | Hiroshi Seki | Checker of electric leak |
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