CN204243726U - 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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- CN204243726U CN204243726U CN201420594036.2U CN201420594036U CN204243726U CN 204243726 U CN204243726 U CN 204243726U CN 201420594036 U CN201420594036 U CN 201420594036U CN 204243726 U CN204243726 U CN 204243726U
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- electric leakage
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Abstract
The utility model is 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, toggle switch and resistance R1, R2, R3 form delay adjustment circuit, reach electric leakage delay tripping power-off object.
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.
Application number in: 201420345783.2 utility model patents overcome above defect, but, the quality requirement of electric capacity is high, thus improves the defects such as the cost of product.
Summary of the invention.
The technical solution adopted in the utility model 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 is in parallel with the positive terminal of diode D1 and the public pin of toggle switch, 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, one end of 3rd resistance R3, one end of 4th resistance R4 and one end parallel connection of the first electric capacity C1, the other end of the second resistance R2 and toggle switch 1 are thrown pin and are connected, the other end of the 3rd resistance R3 and toggle switch 2 are thrown pin and are connected, the other end of the 4th resistance R4 and toggle switch 3 are thrown pin and are connected, the other end and power circuit 5 negative pole of the first electric capacity C1 are connected.
The utility model has the advantage of that delay time is accurate, debugging is convenient, manufacturing cost is lower.
Below in conjunction with drawings and Examples, detailed content of the present utility model is described.
Accompanying drawing explanation
Fig. 1 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. 2 is the pulse signal (during input rated residual operating current) that the utility model electric leakage integrated package LM54123 the 4th pin exports.
Fig. 3 is the utility model electric leakage integrated package younger brother LM54123 5 pin signal (after the time delay of input rated residual operating current).
Embodiment
As shown in Figure 1, 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 and forms integrating circuit, and resistance R2, R3, R4 and toggle switch form discharge circuit.
When leakage current reaches rated value, integrated package LM54123 the 4th pin in electric leakage signal amplifier 4 exports as Fig. 2 pulse signal, rushes electricity by diode D1, resistance R1 to electric capacity C1.
When the 4th pin output pulse signal is in low level, electricity on electric capacity C1 is through resistance R2, (R3, R4) and toggle switch composition discharge loop, 4th pin pulse signal is when high level, start again to rush electricity to electric capacity C1, impulse electricity so repeatedly, when integrated package the 5th pin that leaks electricity after specified delay time reaches certain amplitude (as shown in Figure 3), 7th pin of electric leakage integrated package exports high level, make tripping mechanism work, circuit breaker trip power-off, reaches 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) is in parallel with the positive terminal of diode (D1) and the public pin of toggle switch, 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), one end of 3rd resistance (R3), one end of 4th resistance (R4) and one end parallel connection of the first electric capacity (C1), the other end of the second resistance (R2) and toggle switch 1 are thrown pin and are connected, the other end of the 3rd resistance (R3) and toggle switch 2 are thrown pin and are connected, the other end of the 4th resistance (R4) and toggle switch 3 are thrown pin and are connected, the other end and power circuit (5) negative pole of the first electric capacity (C1) are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420594036.2U CN204243726U (en) | 2014-10-04 | 2014-10-04 | 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 |
|---|---|---|---|
| CN201420594036.2U CN204243726U (en) | 2014-10-04 | 2014-10-04 | Based on the time lagged type residual current action breaker of Quick-type electric leakage integrated package |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204243726U true CN204243726U (en) | 2015-04-01 |
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ID=52773173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420594036.2U Expired - Fee Related CN204243726U (en) | 2014-10-04 | 2014-10-04 | Based on the time lagged type residual current action breaker of Quick-type electric leakage integrated package |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204243726U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190580A (en) * | 2019-06-14 | 2019-08-30 | 中电科安科技股份有限公司 | A kind of long-range control intelligent breaker with storage function |
-
2014
- 2014-10-04 CN CN201420594036.2U patent/CN204243726U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190580A (en) * | 2019-06-14 | 2019-08-30 | 中电科安科技股份有限公司 | A kind of long-range control intelligent breaker with storage function |
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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: 20150401 Termination date: 20161004 |