JPS63109530U - - Google Patents
Info
- Publication number
- JPS63109530U JPS63109530U JP34087U JP34087U JPS63109530U JP S63109530 U JPS63109530 U JP S63109530U JP 34087 U JP34087 U JP 34087U JP 34087 U JP34087 U JP 34087U JP S63109530 U JPS63109530 U JP S63109530U
- Authority
- JP
- Japan
- Prior art keywords
- time
- limited
- predictive alarm
- alarm device
- 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 description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Emergency Protection Circuit Devices (AREA)
Description
図は本考案の一実施例を示す配線図。
６……最大値検出回路、７……限時電流整定回
路、２０……予知警報装置、２１……予知レベル
検出回路、２２……時限回路、Ｙ……警報リレー
、Ｘ……しや断リレー。
The figure is a wiring diagram showing one embodiment of the present invention. 6...Maximum value detection circuit, 7...Time-limited current setting circuit, 20...Prediction alarm device, 21...Prediction level detection circuit, 22...Time limit circuit, Y...Alarm relay, X...Shrinking relay .
Claims (1)
整定する限時電流整定回路に入力し、その出力を
超反限時特性回路に入力して負荷電流が設定レベ
ル値以上に達したとき一定の時限後にしや断器用
リレーを動作させるようにしたものにおいて、前
記限時電流整定回路の出力を入力とした予知警報
装置を設け、該予知警報装置を前記限時電流整定
回路の整定値の６０〜９０％に達したとき予知警
報を発するようにしたことを特徴とした予知警報
装置を有する過電流継電器。 A current proportional to the load current is detected and input to a time-limited current setting circuit that sets a time-limited current.The output is input to a super-reverse time-limited characteristic circuit.When the load current reaches a set level value or more, after a certain time period. In a device configured to operate a breaker relay, a predictive alarm device is provided which inputs the output of the time-limited current setting circuit, and the predictive alarm device is set to 60 to 90% of the setting value of the time-limited current setting circuit. 1. An overcurrent relay having a predictive alarm device that issues a predictive alarm when an overcurrent is reached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34087U JPS63109530U (en) | 1987-01-06 | 1987-01-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34087U JPS63109530U (en) | 1987-01-06 | 1987-01-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63109530U true JPS63109530U (en) | 1988-07-14 |
Family
ID=30777223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34087U Pending JPS63109530U (en) | 1987-01-06 | 1987-01-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63109530U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5393346A (en) * | 1977-01-26 | 1978-08-16 | Terasaki Denki Sangyo Kk | Overcurrent protector |
-
1987
- 1987-01-06 JP JP34087U patent/JPS63109530U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5393346A (en) * | 1977-01-26 | 1978-08-16 | Terasaki Denki Sangyo Kk | Overcurrent protector |
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