JPS63157676U - - Google Patents
Info
- Publication number
- JPS63157676U JPS63157676U JP5086987U JP5086987U JPS63157676U JP S63157676 U JPS63157676 U JP S63157676U JP 5086987 U JP5086987 U JP 5086987U JP 5086987 U JP5086987 U JP 5086987U JP S63157676 U JPS63157676 U JP S63157676U
- Authority
- JP
- Japan
- Prior art keywords
- ground fault
- signal
- oscillator
- frequency
- bridge circuit
- 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
- 238000001514 detection method Methods 0.000 claims 2
- 230000005856 abnormality Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Locating Faults (AREA)
Description
第１図は本考案の一実施例の回路構成を示す図
である。
１……被検出ライン、２……オシレータ、３…
…ブリツジ回路、４……増幅器、５……比較器、
６……クランプメータ、１０……地絡故障検出器
。
FIG. 1 is a diagram showing a circuit configuration of an embodiment of the present invention. 1...Line to be detected, 2...Oscillator, 3...
...Bridge circuit, 4...Amplifier, 5...Comparator,
6...Clamp meter, 10...Ground fault detector.
Claims (1)
波交流信号を発振するオシレータと、 このオシレータの発振した該低周波交流信号に
対するインピーダンス低下から地絡故障による異
常を検出するブリツジ回路と、 このブリツジ回路出力を予め特定される電圧と
比較することにより地絡故障の検出信号を出力す
る比較器と を具備したことを特徴とする地絡故障検出装置。[Claim for Utility Model Registration] An oscillator that oscillates a constant low-frequency AC signal that is superimposed on a line to be detected for a ground fault, and an abnormality caused by the ground fault from a decrease in impedance to the low-frequency AC signal oscillated by the oscillator. A ground fault detection device comprising: a bridge circuit for detecting a ground fault; and a comparator for outputting a ground fault detection signal by comparing the output of the bridge circuit with a predetermined voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5086987U JPS63157676U (en) | 1987-04-03 | 1987-04-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5086987U JPS63157676U (en) | 1987-04-03 | 1987-04-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63157676U true JPS63157676U (en) | 1988-10-17 |
Family
ID=30874621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5086987U Pending JPS63157676U (en) | 1987-04-03 | 1987-04-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63157676U (en) |
-
1987
- 1987-04-03 JP JP5086987U patent/JPS63157676U/ja active Pending
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