JPS6241538Y2 - - Google Patents
Info
- Publication number
- JPS6241538Y2 JPS6241538Y2 JP17505580U JP17505580U JPS6241538Y2 JP S6241538 Y2 JPS6241538 Y2 JP S6241538Y2 JP 17505580 U JP17505580 U JP 17505580U JP 17505580 U JP17505580 U JP 17505580U JP S6241538 Y2 JPS6241538 Y2 JP S6241538Y2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- circuits
- switching elements
- overcurrent
- display
- 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.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 6
- 239000004020 conductor Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Emergency Protection Circuit Devices (AREA)
Description
【考案の詳細な説明】
この考案は電子回路によつて制御する時限引き
はずし機構を持つた回路しや断器においてしや断
器の動作時間を判別表示する回路しや断器用動作
時間表示回路に関するものである。[Detailed description of the invention] This invention is a circuit breaker operating time display circuit that distinguishes and displays the operating time of a circuit breaker that has a timed tripping mechanism controlled by an electronic circuit. It is related to.
従来この種の表示回路は存在せず、しや断器の
瞬時動作のみ機械的なラツチ機構を備え表示させ
る方法などがあつた。従つてしや断器の動作後、
その動作時間の表示はされてないため、しや断さ
れた回路に接続されているどの装置の異常による
しや断かを判別しにくく、事故後の原因究明に時
間がかかつていた。また上記のような機械的なラ
ツチ機構による表示方法も機械的に雑雑かつ高価
であり瞬時動作以外は表示できないなどの欠点が
あつた。 Conventionally, this type of display circuit did not exist, and there were methods that included a mechanical latch mechanism to display only the instantaneous operation of the breaker. Therefore, after the operation of the breaker,
Because the operating time is not displayed, it is difficult to determine which device connected to the circuit that was disconnected caused the disconnection, and it took time to investigate the cause after the accident. Furthermore, the above-mentioned display method using a mechanical latch mechanism is mechanically complicated and expensive, and has drawbacks such as being unable to display anything other than instantaneous motion.
この考案は上記のような従来のものの欠点を除
去するためになされたもので、最近は時限引きは
ずし機構を電子回路で制御する回路しや断器が用
いられており、このような回路しや断器にあつて
は各時限の出力を分割することができることに着
目し、各時限の出力それぞれに対応する複数のス
イツチング素子をもうけ、このそれぞれのスイツ
チング素子と直列に動作表示装置を接続すること
により動作判別表示を得ようとするものである。 This idea was made to eliminate the drawbacks of the conventional ones as mentioned above.Recently, circuits and disconnectors that control the time-limited tripping mechanism using electronic circuits have been used, and such circuits and disconnectors have been used recently. In the case of disconnectors, we focused on the fact that the output of each time period can be divided, and created a plurality of switching elements corresponding to the outputs of each time period, and connected an operation display device in series with each switching element. The purpose is to obtain a motion discrimination display.
以下この考案の実施例を図について説明する。
第１図は電子回路による時限引きはずし機構を持
つた従来の回路しや断器の一例を示すブロツク
図、であり、１は導体、２は変流器、３は過電流
検出回路、４は時限回路、５は開閉機構、６はス
イツチング素子、７は引きはずしコイルである。 An embodiment of this invention will be described below with reference to the drawings.
Fig. 1 is a block diagram showing an example of a conventional circuit breaker having a time-limited tripping mechanism using an electronic circuit, where 1 is a conductor, 2 is a current transformer, 3 is an overcurrent detection circuit, and 4 is an overcurrent detection circuit. 5 is an opening/closing mechanism, 6 is a switching element, and 7 is a tripping coil.
しや断器の導体１に接続された変流器２と上記
変流器２からの出力を受ける過電流検出回路３と
この過電流検出回路３からの出力によつて過負荷
電流に対応した時間で信号を出す時限回路４と、
この時限回路からの信号を受けて閉開機構５を動
作させるスイツチング素子６と引きはずしコイル
７とからの構成で、過電流は例えばＩ≧I1，I1
＞Ｉ≧I2，I2＞Ｉ≧I3（但しI1＞I2＞I3）の３段階に
分けられ、それぞれ別の限時回路４に信号が入力
され、Ｉ≧I1の時は継続時間t1の後に時限回路４
から制御信号が出力され、I1＞Ｉ≧I2の時は継続
時間t2（t2＞t1）の後に制御信号が出力され、I2＞
Ｉ≧I3の時は継続時間t3（t3＞t2）の後に制御信号
が出力され、この制御信号が出力された時点でス
イツチング素子６がターンオンされて引きはずし
コイル７が付勢され回路がしや断される。 A current transformer 2 connected to the conductor 1 of the shield breaker, an overcurrent detection circuit 3 that receives the output from the current transformer 2, and an overcurrent detection circuit 3 that responds to overload current by the output from the overcurrent detection circuit 3. A timer circuit 4 that outputs a signal based on time;
It is composed of a switching element 6 that operates the closing/opening mechanism 5 in response to a signal from the timer circuit, and a tripping coil 7 .
It is divided into three stages: >I≧I 2 , I 2 >I≧I 3 (however, I 1 >I 2 >I 3 ), and the signal is input to a separate time limit circuit 4, and when I≧I 1 , Timed circuit 4 after duration t 1
A control signal is output from I 1 > I ≧ I 2 , a control signal is output after a duration t 2 (t 2 > t 1 ), and when I 2 >
When I≧I 3 , a control signal is output after a duration t 3 (t 3 >t 2 ), and at the time this control signal is output, the switching element 6 is turned on and the tripping coil 7 is energized. The circuit is soon broken.
この考案は第１図に示す電子回路による時限引
きはずし機構をもつた回路しや断器を利用してこ
れに動作時間表示装置を付加したもので、第２図
はこの考案の一実施例を示すブロツク図であり、
第１図と同一符号は同一又は相当部分を示し、８
は動作表示装置である。又、第２図の構成では複
数個の時限回路に対応した同数のスイツチング素
子６及び動作表示装置８を各時限回路ごとに分け
て直列に接続しそれをすべて引きはずしコイル７
に並列に接続した構成になつている。 This invention utilizes a circuit breaker and disconnector with a timed tripping mechanism using an electronic circuit as shown in Figure 1, and adds an operating time display device to this. Figure 2 shows an embodiment of this invention. It is a block diagram showing
The same symbols as in Figure 1 indicate the same or corresponding parts, 8
is an operation display device. Further, in the configuration shown in FIG. 2, the same number of switching elements 6 and operation display devices 8 corresponding to a plurality of time circuits are connected in series for each time circuit, and all of them are connected to the trip coil 7.
The configuration is such that they are connected in parallel.
次に第２図に示す回路の動作について説明する
と、過電流Ｉは例えばＩ≧I1，I1＞Ｉ≧I2，I2＞Ｉ
≧I3（但しI1＞I2＞I3）の３段階に分けられ、それ
ぞれ別の時限回路４に信号が入力され、Ｉ≧I1の
時は継続時間t1の後に時限回路４から制御信号が
出力され、I1＞Ｉ≧I2の時は継続時間t2（t2＞t1）
の後に制御信号が出力され、I2＞Ｉ≧I3の時は継
続時間t3（t3＞t2）の後に制御信号が出力される。
ここまでは第１図と同じであるが第２図では上記
各継続時間を持つた出力がそれぞれに対応したス
イツチング素子６及び動作表示装置８を動作させ
引きはずしコイル７を付勢し回路をしや断する。
このとき上記t1，t2，t3のどの継続時間を持つた
制御信号かはどの動作表示装置８が表示したかに
よつて判別することができる。 Next, the operation of the circuit shown in FIG. 2 will be described. For example, the overcurrent I is I≧I 1 , I 1 >I≧I 2 , I 2 >I
≧ I3 (where I1 > I2 > I3 ), and a signal is input to each of the three timer circuits 4. When I≧ I1 , a control signal is output from the timer circuit 4 after a duration of t1 , and when I1 >I≧ I2 , a control signal is output after a duration of t2 ( t2 > t1 ).
When I 2 >I≧I 3 , the control signal is output after a duration t 3 (t 3 >t 2 ).
Up to this point, the operation is the same as in FIG. 1, but in FIG. 2, the outputs having the above-mentioned durations operate the corresponding switching elements 6 and operation indicators 8, energize the trip coil 7, and break the circuit.
At this time, it is possible to determine which of the durations t1 , t2 , and t3 the control signal has by checking which operation display device 8 displays it.
以上のようにして上記動作表示装置８の表示に
より回路しや断器の動作時間を判別でき、事故後
の原因究明に役立つ。 As described above, the operation time of the circuit or disconnector can be determined by the display on the operation display device 8, which is useful for investigating the cause after an accident.
第３図および第４図は動作表示装置８の実施例
を示すブロツク図で、各図中９は釈放コイル、１
０は発光ダイオード、１１は表示装置、１２は外
部電源である。上記第３図及び第４図のように、
動作表示装置８は第２図で示す釈放形コイルを用
いても良く、第３図で示すような発光ダイオード
を使用して外部電源による表示等もできる。さら
に上記動作表示装置８の表示をリード線等を用い
任意の場所で表示することも可能である。 3 and 4 are block diagrams showing embodiments of the operation display device 8. In each figure, 9 is a release coil;
0 is a light emitting diode, 11 is a display device, and 12 is an external power source. As shown in Figures 3 and 4 above,
The operation display device 8 may use an open-circuit coil shown in FIG. 2, or a light emitting diode as shown in FIG. 3 may be used for display using an external power source. Furthermore, it is also possible to display the display on the operation display device 8 at any desired location using a lead wire or the like.
第１図は電子回路による時限引きはずし機構を
持つた従来の回路しや断器の一例を示すブロツク
図、第２図はこの考案の一実施例を示すブロツク
図、第３図、第４図はこの考案に使用する動作表
示装置の実施例を示すブロツク図である。
１……導体、２……変流器、３……過電流検出
回路、４……時限回路、５……開閉機構、６……
スイツチング素子、７……引きはずしコイル、８
……動作表示装置、９……釈放コイル、１０……
発光ダイオード、１１……表示装置、１２……外
部電源。なお各図中同一符号は相当部分を示すも
のとする。
Fig. 1 is a block diagram showing an example of a conventional circuit breaker having a timed tripping mechanism using an electronic circuit, Fig. 2 is a block diagram showing an embodiment of this invention, and Figs. 3 and 4. 1 is a block diagram showing an embodiment of an operation display device used in this invention. DESCRIPTION OF SYMBOLS 1... Conductor, 2... Current transformer, 3... Overcurrent detection circuit, 4... Time limit circuit, 5... Switching mechanism, 6...
Switching element, 7... Tripping coil, 8
...Operation display device, 9...Release coil, 10...
Light emitting diode, 11...display device, 12...external power supply. Note that the same symbols in each figure indicate corresponding parts.
Claims (1)
流検出回路で検出された過電流を複数の電流段階
に分ち、各電流段階に対応してそれぞれ所定の継
続時間の後に制御信号を出力する複数個の時限回
路と、この複数個の時限回路の出力がそれぞれ入
力される複数個のスイツチング素子と、この複数
個のスイツチング素子がそれぞれ直列に接続され
る複数個の動作表示回路と、上記動作表示回路と
それに対応したスイツチング素子との直列回路の
複数組をすべて並列に接続した回路によつて付勢
される引きはずしコイルとを備えた回路しや断器
用動作時間表示回路。 An overcurrent detection circuit that detects overcurrent, divides the overcurrent detected by this overcurrent detection circuit into multiple current stages, and outputs a control signal after a predetermined duration corresponding to each current stage. A plurality of time limit circuits, a plurality of switching elements to which the outputs of the plurality of time limit circuits are respectively input, a plurality of operation display circuits to which the plurality of switching elements are connected in series, and the above-mentioned operation. An operating time display circuit for a circuit breaker, comprising a tripping coil energized by a circuit in which a plurality of series circuits of a display circuit and corresponding switching elements are all connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17505580U JPS6241538Y2 (en) | 1980-12-05 | 1980-12-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17505580U JPS6241538Y2 (en) | 1980-12-05 | 1980-12-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5798129U JPS5798129U (en) | 1982-06-16 |
| JPS6241538Y2 true JPS6241538Y2 (en) | 1987-10-24 |
Family
ID=29967274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17505580U Expired JPS6241538Y2 (en) | 1980-12-05 | 1980-12-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6241538Y2 (en) |
-
1980
- 1980-12-05 JP JP17505580U patent/JPS6241538Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5798129U (en) | 1982-06-16 |
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