CN204376376U - Based on the time lagged type residual current action breaker of Quick-type electric leakage integrated package - Google Patents
Based on the time lagged type residual current action breaker of Quick-type electric leakage integrated package Download PDFInfo
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- CN204376376U CN204376376U CN201420345783.2U CN201420345783U CN204376376U CN 204376376 U CN204376376 U CN 204376376U CN 201420345783 U CN201420345783 U CN 201420345783U CN 204376376 U CN204376376 U CN 204376376U
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- electric leakage
- integrated package
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- electric capacity
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Abstract
The utility model relates to a kind of time lagged type residual current action breaker based on Quick-type electric leakage integrated package, electric leakage integrated package LM54123 the 4th pin in described electric leakage signal amplifier 4 connects diode, resistance and an electric capacity, constitute integrating circuit, reach electric leakage delay tripping power-off object.The utility model has the advantage of that delay time is accurate, debugging is convenient, low cost of manufacture.
Description
Technical field
The utility model relates to a kind of residual current action breaker, particularly a kind of time delay residual current action breaker based on Quick-type electric leakage integrated package.
Background technology
Along with further developing of China's economic construction, industry, traffic, municipal government utility and domestic load increase rapidly, and therefore, the fire that causes of the loss of life or personal injury that cause of getting an electric shock and electric leakage also increases to some extent.
For ensureing Electrical Safety, preventing electric shock injures and deaths, low-voltage network three grades of earth leakage protectives are carried out in national requirements.
" first order " and " second level " earth leakage protective device of current domestic production; serve some protective effects; but, also there is certain defect; part time-delay leakage current operated protective device does not meet the requirement of GB14048.2-2008 standard; therefore, low voltage electric network often occurs that three grades of earth leakage protective devices trip simultaneously, gives to produce and life brings very large inconvenience.
Summary of the invention
The utility model is to overcome above defect, the technical scheme adopted is a kind of time lagged type residual current action breaker based on Quick-type electric leakage integrated package, comprise main power line 1, tripping mechanism 2, zero gives current transformer 3, electric leakage signal amplifier 4, power circuit 5, trip circuit 6, electric leakage integrated package LM54123 the 4th pin of described electric leakage signal amplifier 4 and the positive terminal of diode D1 are connected, the negative pole end of diode D1 and one end of the first resistance R1 are connected, the other end and electric leakage integrated package LM54123 the 5th pin of the first resistance R1, one end of second resistance R2 and the public pin parallel connection of toggle switch, the other end and power circuit 5 negative pole of the second resistance R2 are connected, one end that 1 of toggle switch throws pin and the first electric capacity C1 is connected, the other end and power circuit 5 negative pole of the first electric capacity C1 are connected, one end that 2 of toggle switch throws pin and the second electric capacity C2 is connected, the other end and power circuit 5 negative pole of the second electric capacity C2 are connected, one end that 3 of toggle switch throws pin and the 3rd electric capacity C3 is connected, the other end and power circuit 5 negative pole of the 3rd electric capacity C3 are connected.
The utility model has the advantage of that delay time is accurate, debugging is convenient, low cost of manufacture.
Below in conjunction with drawings and Examples, detailed content of the present utility model is described.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of known Quick-type residual current circuit breaker.
Fig. 2 is the time lagged type residual current action breaker schematic circuit diagram based on Quick-type electric leakage integrated package of the present utility model.
Fig. 3 is the pulse signal (during input rated residual operating current) that the utility model electric leakage integrated package LM54123 the 4th pin exports.
Fig. 4 is the utility model electric leakage integrated package LM54123 the 5th pin signal (after the time delay of input rated residual operating current).
Embodiment
As shown in Figure 2, the utility model based on Quick-type electric leakage integrated package time lagged type residual current action breaker comprises main power line 1, tripping mechanism 2, zero gives current transformer 3, electric leakage signal amplifier 4, power circuit 5, trip circuit 6, Quick-type electric leakage integrated package LM54123 the 4th pin in described electric leakage signal amplifier 4 meets a diode D1 and resistance R1 and electric capacity C1 ~ C3 and forms integrating circuit, and resistance R2 is bypass resistance.
When leakage current reaches rated value, integrated package LM54123 the 4th pin in electric leakage signal amplifier 4 exports as Fig. 3 pulse signal, electricity is rushed to electric capacity C1 ~ C3 by two tap D1, resistance R1, when integrated package the 5th pin that leaks electricity after specified delay time reaches certain amplitude (as shown in Figure 4), 7th pin of electric leakage integrated package exports high level, make tripping mechanism work, circuit breaker trip power-off, reach the object of electric leakage delay cut-off.
Claims (1)
1. the time lagged type residual current action breaker based on Quick-type electric leakage integrated package, comprise main power line (1), tripping mechanism (2), zero gives current transformer (3), electric leakage signal amplifier (4), power circuit (5), trip circuit (6), it is characterized in that electric leakage integrated package LM54123 the 4th pin of described electric leakage signal amplifier (4) and the positive terminal of diode (D1) are connected, the negative pole end of diode (D1) and one end of the first resistance (R1) are connected, the other end and electric leakage integrated package LM54123 the 5th pin of the first resistance (R1), one end of second resistance (R2) and the public pin parallel connection of toggle switch, the other end and power circuit (5) negative pole of the second resistance (R2) are connected, one end that 1 of toggle switch throws pin and the first electric capacity (C1) is connected, the other end and power circuit (5) negative pole of the first electric capacity (C1) are connected, one end that 2 of toggle switch throws pin and the second electric capacity (C2) is connected, the other end and power circuit (5) negative pole of the second electric capacity (C2) are connected, one end that 3 of toggle switch throws pin and the 3rd electric capacity (C3) is connected, the other end and power circuit (5) negative pole of the 3rd electric capacity (C3) are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420345783.2U CN204376376U (en) | 2014-06-20 | 2014-06-20 | Based on the time lagged type residual current action breaker of Quick-type electric leakage integrated package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420345783.2U CN204376376U (en) | 2014-06-20 | 2014-06-20 | Based on the time lagged type residual current action breaker of Quick-type electric leakage integrated package |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204376376U true CN204376376U (en) | 2015-06-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420345783.2U Expired - Fee Related CN204376376U (en) | 2014-06-20 | 2014-06-20 | Based on the time lagged type residual current action breaker of Quick-type electric leakage integrated package |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204376376U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680415A (en) * | 2016-03-12 | 2016-06-15 | 王继杰 | B type residual current operated circuit breaker |
-
2014
- 2014-06-20 CN CN201420345783.2U patent/CN204376376U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680415A (en) * | 2016-03-12 | 2016-06-15 | 王继杰 | B type residual current operated circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20170620 |