JPH0414437U - - Google Patents
Info
- Publication number
- JPH0414437U JPH0414437U JP5406990U JP5406990U JPH0414437U JP H0414437 U JPH0414437 U JP H0414437U JP 5406990 U JP5406990 U JP 5406990U JP 5406990 U JP5406990 U JP 5406990U JP H0414437 U JPH0414437 U JP H0414437U
- Authority
- JP
- Japan
- Prior art keywords
- coil
- circuit
- reset
- output voltage
- current
- 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 4
- 230000010354 integration Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Protection Of Generators And Motors (AREA)
- Emergency Protection Circuit Devices (AREA)
Description
第１図は本考案の一実施例を示す回路図である
。
図中、１は負荷通電路、２は電磁接触器（開閉
接点）、４は操作回路、５はマグネツトコイル、
６はラツチリレー、６ｂはセツトコイル、６ｃは
リセツトコイル、１０は電流検出回路、１２は積
分回路、２２は制御回路、２３は比較回路、２６
はリセツト操作スイツチである。
FIG. 1 is a circuit diagram showing an embodiment of the present invention. In the figure, 1 is a load conduction path, 2 is an electromagnetic contactor (switching contact), 4 is an operating circuit, 5 is a magnetic coil,
6 is a latch relay, 6b is a set coil, 6c is a reset coil, 10 is a current detection circuit, 12 is an integration circuit, 22 is a control circuit, 23 is a comparison circuit, 26
is a reset operation switch.
Claims (1)
の検出電圧を得る電流検出回路と、前記検出電圧
により充電される積分回路と、この積分回路から
の出力電圧を設定値と比較し開放信号を出力する
比較回路と、セツトコイル、リセツトコイルおよ
び出力接点を有しセツトコイルが前記開放信号に
よつて励磁されるラツチリレーと、このラツチリ
レーのリセツトコイルを通電するように設けられ
たリセツト操作スイツチと、前記積分回路の出力
電圧の一定値以上の大きさに応答して所定時間前
記リセツトコイルの通電路を実質的に開放状態に
保つスイツチング素子とからなる過負荷継電装置
。 A current detection circuit that detects a load current and obtains a detection voltage of a magnitude corresponding to the detected current, an integration circuit that is charged by the detection voltage, and an output voltage from this integration circuit that is compared with a set value to generate an open signal. a latch relay having a set coil, a reset coil, and an output contact, the set coil of which is excited by the opening signal; a reset operation switch provided to energize the reset coil of the latch relay; An overload relay device comprising a switching element that maintains the energizing path of the reset coil substantially open for a predetermined period of time in response to an output voltage of a circuit equal to or higher than a certain value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5406990U JPH0414437U (en) | 1990-05-25 | 1990-05-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5406990U JPH0414437U (en) | 1990-05-25 | 1990-05-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0414437U true JPH0414437U (en) | 1992-02-05 |
Family
ID=31575803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5406990U Pending JPH0414437U (en) | 1990-05-25 | 1990-05-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0414437U (en) |
-
1990
- 1990-05-25 JP JP5406990U patent/JPH0414437U/ja active Pending
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