JPS6011622U - Overcurrent protection device - Google Patents
Overcurrent protection deviceInfo
- Publication number
- JPS6011622U JPS6011622U JP10287783U JP10287783U JPS6011622U JP S6011622 U JPS6011622 U JP S6011622U JP 10287783 U JP10287783 U JP 10287783U JP 10287783 U JP10287783 U JP 10287783U JP S6011622 U JPS6011622 U JP S6011622U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- overcurrent protection
- protection device
- overcurrent
- breaker
- 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図は従来の過電流保護装置を示す電気結線図、第２
図は第１図に示す過電流保護装置における過電流引外し
装置の電流一時間特性図、第３図はこの考案に係る過電
流保護装置の一実施例を示す電気結線図、第４図は第３
図に示す過電流保護装置における電圧抑制装置の電圧−
電流特性図、第５図は電圧抑制装置の他の実施例を示す
電気結線図である。
図において、１は電路、２は電源、３は負荷、４はしゃ
断器、５は変流器、６は過電流検出装置、６ａは過電流
引外し装置、６ｂは開閉装置、７は引外し装置、８は電
圧抑制装置である。なお各図中同一符号は同一部分を示
す。Figure 1 is an electrical wiring diagram showing a conventional overcurrent protection device, Figure 2
The figure is a one-hour current characteristic diagram of the overcurrent tripping device in the overcurrent protection device shown in FIG. 1, FIG. 3 is an electrical wiring diagram showing an embodiment of the overcurrent protection device according to this invention, and FIG. 4 is Third
The voltage of the voltage suppressor in the overcurrent protection device shown in the figure -
The current characteristic diagram and FIG. 5 are electrical wiring diagrams showing another embodiment of the voltage suppressing device. In the figure, 1 is an electric circuit, 2 is a power supply, 3 is a load, 4 is a breaker, 5 is a current transformer, 6 is an overcurrent detection device, 6a is an overcurrent tripping device, 6b is a switchgear, and 7 is a tripping device. The device 8 is a voltage suppression device. Note that the same reference numerals in each figure indicate the same parts.
Claims (5)
出する変流器、゛前記変流器の検出電流が所定値以上に
なると付勢される過電流引外し装置、前記過電流引外し
装置と前記変流器とに直列接続され前記過電流引外し装
置の付勢時に開放される開閉装置、前記開閉装置に並列
接続された電圧抑制装置、及び前記電圧抑制装置並びに
前記開閉装置に並列接続され付勢時に前記しゃ断器を開
放させる引外し装置を備え、前記電圧抑制装置の抑制電
圧を前記引外し装置を付勢する動作電圧より高くし、か
つ前記開閉装置が開放し得るしゃ動可能な最大電圧より
低く設定した過電流保護装置。(1) A breaker connected to an electrical circuit, a current transformer that detects the current in the electrical circuit, an overcurrent tripping device that is activated when the current detected by the current transformer exceeds a predetermined value, and the overcurrent tripping device that is activated when the current detected by the current transformer exceeds a predetermined value. A switchgear connected in series to the disconnection device and the current transformer and opened when the overcurrent tripping device is energized; a voltage suppression device connected in parallel to the switchgear; and a voltage suppression device connected to the voltage suppression device and the switchgear. A tripping device connected in parallel and opening the breaker when energized, the voltage suppressing device having a suppressing voltage higher than an operating voltage energizing the tripping device, and a breaker capable of opening the circuit breaker. Overcurrent protection device set below the maximum possible voltage.
である実用新案登録請求の範囲第（１）項記載の過電流
保護装置。(2) The voltage suppression device is a bidirectional surge absorber.
An overcurrent protection device according to claim (1) of the utility model registration.
回路である実用新案登録請求の範囲第（１）項記載の過
電流保護装置。(3) The overcurrent protection device according to claim (1), wherein the voltage suppression device is a series circuit of a capacitor and a resistor.
案登録請求の範囲第（１）項ないし第（３）項の何れか
−に記載の過電流保護装置。(4) The overcurrent protection device according to any one of claims (1) to (3), wherein the switching device is constituted by mechanical contacts.
成されている実用新案登録請求の範囲第（１）項ないし
第（３）項の何れか−に記載の過電流保護装置。(5) The overcurrent protection device according to any one of claims (1) to (3), wherein the switching device is constituted by a non-contact switch made of a semiconductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10287783U JPS6011622U (en) | 1983-06-30 | 1983-06-30 | Overcurrent protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10287783U JPS6011622U (en) | 1983-06-30 | 1983-06-30 | Overcurrent protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6011622U true JPS6011622U (en) | 1985-01-26 |
Family
ID=30242279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10287783U Pending JPS6011622U (en) | 1983-06-30 | 1983-06-30 | Overcurrent protection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6011622U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58116207U (en) * | 1982-02-03 | 1983-08-08 | 松下電器産業株式会社 | Trance |
| JPH0415213U (en) * | 1990-05-29 | 1992-02-06 | ||
| JP2010022092A (en) * | 2008-07-08 | 2010-01-28 | Mitsubishi Electric Corp | Overcurrent relay |
-
1983
- 1983-06-30 JP JP10287783U patent/JPS6011622U/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58116207U (en) * | 1982-02-03 | 1983-08-08 | 松下電器産業株式会社 | Trance |
| JPH0415213U (en) * | 1990-05-29 | 1992-02-06 | ||
| JP2010022092A (en) * | 2008-07-08 | 2010-01-28 | Mitsubishi Electric Corp | Overcurrent relay |
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