JPS59189426U - Overcurrent protection device - Google Patents
Overcurrent protection deviceInfo
- Publication number
- JPS59189426U JPS59189426U JP8340783U JP8340783U JPS59189426U JP S59189426 U JPS59189426 U JP S59189426U JP 8340783 U JP8340783 U JP 8340783U JP 8340783 U JP8340783 U JP 8340783U JP S59189426 U JPS59189426 U JP S59189426U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- switching element
- detection circuit
- overcurrent protection
- current detection
- 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
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の一実施例の電気回路図、第２図は本考
案の他の実施例の電気回路図、第３図は本考案のさらに
他の実施例の電気回路図である。
１・・・スイッチング手段、５． ６． ７・・・過電
流保護用スイッチング素子、訃・・電気回路、１１・・
・トリップコイル、１２．１６・・・トランジスタ、１
５・・・制御回路、２０・・・整流回路、ＣＴｌ〜ＣＴ
３・・・変流器。FIG. 1 is an electrical circuit diagram of one embodiment of the invention, FIG. 2 is an electrical circuit diagram of another embodiment of the invention, and FIG. 3 is an electrical circuit diagram of still another embodiment of the invention. 1... switching means, 5. 6. 7... Switching element for overcurrent protection,... Electric circuit, 11...
・Trip coil, 12.16...transistor, 1
5... Control circuit, 20... Rectifier circuit, CTl~CT
3...Current transformer.
Claims (1)
イルと、電流検出回路よりも前記電気回路の電源側に介
在されている過電流保護用スイッチング素子とを有し、
トリップコイルの励磁によって過電流保護用スイッチン
グ素子を遮断するスイッチング手段と、 トリップコイルに並列に接続される制御用スイッチング
素子と、 トリップコイルと制御用スイッチング素子とを介する電
流検出回路からの出力によって電力付勢され、かつその
電流検出回路からの出力が予め定めた個未満のとき制御
用スイッチング素子を導通し、その予め定めた値以上の
とき制御用スイッチング素子を遮断する制御回路を含む
ことを特徴とする過電流保護装置。[Claims for Utility Model Registration] A circuit that detects the current of a current circuit, a circuit that rectifies the output from the electrical detection circuit, a trip coil, and a circuit that is interposed on the power source side of the electrical circuit rather than the current detection circuit. It has a switching element for overcurrent protection,
A switching means that cuts off an overcurrent protection switching element by excitation of the trip coil, a control switching element connected in parallel to the trip coil, and an output from a current detection circuit via the trip coil and the control switching element to generate electric power. It is characterized by including a control circuit that conducts the control switching element when the current detection circuit is energized and the output from the current detection circuit is less than a predetermined value, and cuts off the control switching element when the output from the current detection circuit is equal to or greater than the predetermined value. Overcurrent protection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8340783U JPS59189426U (en) | 1983-05-31 | 1983-05-31 | Overcurrent protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8340783U JPS59189426U (en) | 1983-05-31 | 1983-05-31 | Overcurrent protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59189426U true JPS59189426U (en) | 1984-12-15 |
Family
ID=30213365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8340783U Pending JPS59189426U (en) | 1983-05-31 | 1983-05-31 | Overcurrent protection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59189426U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56153919A (en) * | 1980-03-31 | 1981-11-28 | Merlin Gerin | Electronic type tripping device |
-
1983
- 1983-05-31 JP JP8340783U patent/JPS59189426U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56153919A (en) * | 1980-03-31 | 1981-11-28 | Merlin Gerin | Electronic type tripping device |
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