JPS61126740U - - Google Patents
Info
- Publication number
- JPS61126740U JPS61126740U JP993285U JP993285U JPS61126740U JP S61126740 U JPS61126740 U JP S61126740U JP 993285 U JP993285 U JP 993285U JP 993285 U JP993285 U JP 993285U JP S61126740 U JPS61126740 U JP S61126740U
- Authority
- JP
- Japan
- Prior art keywords
- overcurrent
- series
- current
- current transformers
- circuits
- 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 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Protection Of Static Devices (AREA)
Description
第1図は本考案による実施例の構成を示すブロ
ツク図、第2図は従来の電流検出回路を適用した
構成例を示すブロツク図、第3図は、第2図の従
来例におけるカレントトランスの構造を示す斜視
図である。
図において、2―1〜2―4は増幅段、4は電
池、5は電源スイツチ、6―1〜6―4はカレン
トトランス、7―1〜7―4は高抵抗、8―1〜
8―4,10は波形処理回路、9は制御回路であ
る。
FIG. 1 is a block diagram showing the configuration of an embodiment according to the present invention, FIG. 2 is a block diagram showing a configuration example to which a conventional current detection circuit is applied, and FIG. 3 is a block diagram showing a configuration example to which a conventional current detection circuit is applied. FIG. 3 is a perspective view showing the structure. In the figure, 2-1 to 2-4 are amplification stages, 4 is a battery, 5 is a power switch, 6-1 to 6-4 are current transformers, 7-1 to 7-4 are high resistances, 8-1 to
8-4 and 10 are waveform processing circuits, and 9 is a control circuit.
Claims (1)
複数の電流回路にそれぞれ直列に一次側の接続さ
れた複数のカレントトランスと、これ等カレント
トランスの二次側が直列に接続されて、その両極
端が入力側に接続され、前記複数の電流回路のう
ちの少なくとも1つに過電流の状態が発生すると
、該過電流情報を出力側に送出する1つの波形処
理回路とにより構成されたことを特徴とする過電
流保護用の電流検出回路。 In order to prevent the occurrence of overcurrent conditions, multiple current transformers are connected in series with the primary sides of multiple current circuits to be protected, and the secondary sides of these current transformers are connected in series. and one waveform processing circuit connected to the input side and transmitting overcurrent information to the output side when an overcurrent condition occurs in at least one of the plurality of current circuits. Current detection circuit for overcurrent protection.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP993285U JPS61126740U (en) | 1985-01-29 | 1985-01-29 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP993285U JPS61126740U (en) | 1985-01-29 | 1985-01-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61126740U true JPS61126740U (en) | 1986-08-08 |
Family
ID=30490622
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP993285U Pending JPS61126740U (en) | 1985-01-29 | 1985-01-29 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61126740U (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS493147A (en) * | 1972-04-26 | 1974-01-11 | ||
JPS5546825A (en) * | 1978-09-29 | 1980-04-02 | Hitachi Ltd | Ratio difference relay inspecting system |
JPS5826251A (en) * | 1981-07-21 | 1983-02-16 | クオリティ・モニタリング・インストルメンツ・リミテッド | Detector for oil-mist |
-
1985
- 1985-01-29 JP JP993285U patent/JPS61126740U/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS493147A (en) * | 1972-04-26 | 1974-01-11 | ||
JPS5546825A (en) * | 1978-09-29 | 1980-04-02 | Hitachi Ltd | Ratio difference relay inspecting system |
JPS5826251A (en) * | 1981-07-21 | 1983-02-16 | クオリティ・モニタリング・インストルメンツ・リミテッド | Detector for oil-mist |
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