CN202260423U - Power distribution protector - Google Patents
Power distribution protector Download PDFInfo
- Publication number
- CN202260423U CN202260423U CN2011204013093U CN201120401309U CN202260423U CN 202260423 U CN202260423 U CN 202260423U CN 2011204013093 U CN2011204013093 U CN 2011204013093U CN 201120401309 U CN201120401309 U CN 201120401309U CN 202260423 U CN202260423 U CN 202260423U
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- collecting unit
- unit
- power distribution
- cpu
- current
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Abstract
The utility model discloses a power distribution protector, which is formed by a residual current collecting unit, an arc collecting unit, a voltage collecting unit, a current collecting unit, a key input circuit, a central processing unit (CPU), a parameter status display unit, a releasing processing unit and a 485 communication module. The CPU is electrically and respectively connected with the residual current collecting unit, the arc collecting unit, the voltage collecting unit, the current collecting unit, the key input circuit, the parameter status display unit, the releasing processing unit and the 485 communication module. The power distribution protector collects and analyzes current, voltage, residual current and arc of a power distribution system, thereby comprehensively judging security status of a power system. When the power distribution protector finds that a certain index or a plurality of indexes surpasses or surpass a normal allowed scope, a breaker releasing instruction is sent out, and a fault return circuit is separated, thereby avoiding electrical safety accidents.
Description
Technical field
The utility model relates to house power distribution integrated protection field, is specifically related to a kind of power distribution protection device with fault electric arc detecting function.
Background technology
In China domestic house power distribution system, very not enough to the protection of Electrical Safety, most house power distributions only are to have adopted overcurrent protection (adding fuse).And most of residential electricity security incident-for example generation of fire is not that overcurrent causes, but is caused by electric leakage, electric arc, and the generation of this type fire, the domestic GPF (General Protection False measure of generally adopting does not have any effect at all.To such an extent as to Chinese domestic electrical safety accident takes place frequently, electrical fire can be in any more in Chinese fire ratio, accounts for about 30%, makes domestic so and suffers huge casualties and economic loss.
The utility model content
The applicant improves through research to the problems referred to above; A kind of power distribution protection device is provided,, finds electrical safety hidden danger in advance through initiatively keeping watch on electricity consumption loop relevant parameter; Fill up security breaches; Thereby strengthen Electrical Safety protection dynamics, reduce electrical safety accident generation ratio, the protection security of the lives and property.
The technical scheme of the utility model is following:
A kind of power distribution protection device is made up of residual current collecting unit, electric arc collecting unit, voltage acquisition unit, current acquisition unit, button inputting circuits, CPU CPU, parameter state display unit, dropout processing unit and 485 communication modules; The CPU CPU is with residual current collecting unit, electric arc collecting unit, voltage acquisition unit, current acquisition unit, button inputting circuits, parameter state display unit, dropout processing unit and 485 communication modules respectively and is electrically connected.
The useful technique effect of the utility model is:
The utility model is gathered, is analyzed electric current, voltage, residual current and the electric arc of distribution system simultaneously, thereby comprehensively the safe condition of using electricity system is differentiated.When finding that a certain index or a plurality of index surpass normal allowed band, promptly send the circuit breaker tripping instruction, fault loop is broken away from, thereby avoid the generation of Electrical Safety accident.
Description of drawings
For the technical scheme among clearer explanation the utility model embodiment, below employed accompanying drawing among the embodiment is made brief account.These accompanying drawings constitute the application's a part, do not constitute the qualification to the utility model.
Fig. 1 is the functional-block diagram of the utility model.
Embodiment
Further specify below in conjunction with the embodiment of accompanying drawing the utility model.
As shown in Figure 1, the utility model is made up of residual current collecting unit 1, electric arc collecting unit 2, voltage acquisition unit 3, current acquisition unit 4, button inputting circuits 5, CPU CPU 6, parameter state display unit 7, dropout processing unit 8 and 485 communication modules 9.CPU CPU 6 is with residual current collecting unit 1, electric arc collecting unit 2, voltage acquisition unit 3, current acquisition unit 4, button inputting circuits 5, parameter state display unit 7, dropout processing unit 8 and 485 communication modules 9 respectively and is electrically connected.
The human-computer interaction interface that the utility model is formed through button inputting circuits 5 and parameter state display unit 7 carries out the setting of system parameters and displaying contents; This practicality was accomplished a series of functions such as parameter demonstration, warning, communication newly promptly according to the setting content operation after completion was set.The utility model is gathered, thereby electric current, voltage is monitored through current acquisition unit 4,3 pairs of conventional electric power parameters of voltage acquisition unit; Ground leakage current through the integrated 1 pair of distribution loop of residual current collecting unit in inside is surveyed; Survey through 2 pairs of electric arcs of electric arc collecting unit.Carry out analysis and distinguishing according to current Information Monitoring, when finding a certain danger signal, promptly control the controlled loop of dropout processing unit 8 disjunctions, thereby guarantee Electrical Safety.485 communication modules 13 are connected with upper location supervisory, realize Long-distance Control.
In alternating current circuit, fault electric arc at first can be in every half period raises voltage, and reaching the voltage of breakdown electrode, disruptive discharge in the half period of back is so when electric arc took place, the size of current of the positive-negative half-cycle of monitored circuit was inconsistent.Principle in view of the above; The utility model adopts the electric arc collecting unit; Monitored phase line is passed the opposite current transformer of both direction (two CT); Through these two size of current that instrument transformer is gathered positive half cycle and negative half period respectively, when the size of current difference of positive-negative half-cycle surpasses normal allowed band, can think that the arc discharge behavior takes place in tested loop.
Above-described only is the preferred implementation of the utility model, and the utility model is not limited to above embodiment.Be appreciated that other improvement and variation that those skilled in the art directly derive or associate under the prerequisite of the basic design that does not break away from the utility model, all should think to be included within the protection range of the utility model.
Claims (1)
1. a power distribution protection device is characterized in that: be made up of residual current collecting unit, electric arc collecting unit, voltage acquisition unit, current acquisition unit, button inputting circuits, CPU CPU, parameter state display unit, dropout processing unit and 485 communication modules; The CPU CPU is with residual current collecting unit, electric arc collecting unit, voltage acquisition unit, current acquisition unit, button inputting circuits, parameter state display unit, dropout processing unit and 485 communication modules respectively and is electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204013093U CN202260423U (en) | 2011-10-20 | 2011-10-20 | Power distribution protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204013093U CN202260423U (en) | 2011-10-20 | 2011-10-20 | Power distribution protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202260423U true CN202260423U (en) | 2012-05-30 |
Family
ID=46121608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204013093U Expired - Fee Related CN202260423U (en) | 2011-10-20 | 2011-10-20 | Power distribution protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202260423U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102708649A (en) * | 2012-06-12 | 2012-10-03 | 严俊辉 | Multifunctional electrical safety detector |
-
2011
- 2011-10-20 CN CN2011204013093U patent/CN202260423U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102708649A (en) * | 2012-06-12 | 2012-10-03 | 严俊辉 | Multifunctional electrical safety detector |
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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 |
Granted publication date: 20120530 Termination date: 20161020 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |