CN202535032U - Novel intelligent electricity leakage comprehensive protector - Google Patents
Novel intelligent electricity leakage comprehensive protector Download PDFInfo
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- CN202535032U CN202535032U CN2012201802171U CN201220180217U CN202535032U CN 202535032 U CN202535032 U CN 202535032U CN 2012201802171 U CN2012201802171 U CN 2012201802171U CN 201220180217 U CN201220180217 U CN 201220180217U CN 202535032 U CN202535032 U CN 202535032U
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- electric shock
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Abstract
The utility model relates to a novel intelligent electricity leakage comprehensive protector and belongs to the technical field of electricity leakage breakers. A power processing circuit (1) of the novel intelligent electricity leakage comprehensive protector is respectively connected with a human body electric shock detection module circuit (4) and a display circuit (6). A three-phase four-wire switch-on and switch-off detection circuit (2) is respectively connected with a lightning surge absorption circuit (3) and a human body electric shock detection module circuit (4) which is connected with an electricity leakage signal processing circuit (5) which is connected with the display circuit (6). The novel intelligent electricity leakage comprehensive protector is a multifunctional electricity leakage comprehensive protector integrating functions of an electricity leakage relay, an electricity leakage breaker, a lightning surge absorber and the like, is suitable for a low-voltage network with directly grounded three-phase four-wire neutral points, and overcomes defects of products in the prior art.
Description
Technical field:
The utility model relates to the RCCB technical field, is specifically related to a kind of novel intelligent leakage comprehensive protector.
Background technology:
The purpose that leakage breaker arises at the historic moment in power industry is personal electric shock safeguard protection.It is one and is installed on the outdoor abominable power industry level product of environment for use.Along with development of times, " electropollution " on the power distribution circuit has been a very important key factor that influences the normal operation of product.Colleague's product different manufacturers each not to the utmost with, but all have a shortcoming: with principal series altogether, tend to " electropollution " on the circuit; Bring in the main system; Cause the irregular working of main system, even damage the single-chip microcomputer of main system, cause the paralysis of product.
As single-phase product, personal electric shock leakage current and circuit and equipment leakage current are the synthetic of same vector, can generally all be easier among the colleague handle according to the get an electric shock characteristics of leakage current of the person.And the three-phase four-wire system leakage breaker, the resultant vector of the three phase current leakage through residue electric leakage instrument transformer, personal electric shock leakage current has taken place in mutually in the three-phase, and the mould of the resultant vector of three phase current leakage possibly increase, and possibly reduce, also maybe be constant.Therefore the theory that has occurred a phase demodulation amplitude discrimination among the colleague, but the difficulty that implements is very high.
In colleague's product, the structure that generally adopts a single-chip microcomputer to handle, same single-chip microcomputer; To detect the residue leakage current, detect, detect three-phase voltage to three-phase current; To detect the operation input; To detect set point, also will carry out each data and handle and show, also will come a phase discrimination processing at last.The affairs that single-chip microcomputer is handled are too many, and each link processing accuracy has just been reduced, and processing speed has also just reduced.
At present, in the three-phase and four-line distribution line, general only lightning protection device is installed at the high-pressure side of the transformer of electric substation; Decimal also is equipped with lightning protection device at low-pressure end; These lightning protection devices are on parameter and type selecting, only as distribution line upper level lightning protection measures, in the time of these lightning protection component actions; Still there is residual voltage to act on the low-voltage distributing line, acts on the product as total guarantor's RCCB up to thousands of volts.To as the secondary earth leakage circuit breaker, because the low-voltage distributing line of front end input, institute is complicated through road, and far away, very easily responds to the lightning surge overvoltage at thunderstorm weather.In the like product of one's own profession, general only at the input of power transformer and connect a MOV pressure-sensitive device, to do the usefulness of lightning protection.The characteristic of MOV pressure-sensitive device, leakage current is big, and the time one is long, and the MOV pressure-sensitive device of poor-performing can be because heating has the self-destruction phenomenon; Failure state after the MOV pressure-sensitive device action simultaneously is short circuit, and because product characteristic can not remove to adorn FU, so the short circuit of MOV pressure-sensitive device inefficacy, very easily initiation fire.
The utility model content:
The purpose of the utility model provides a kind of novel intelligent leakage comprehensive protector; It is the multifunctional electric leakage comprehensive protection device that integrates functions such as leakage relay, RCCB, lightning surge absorber; Be applicable to the low voltage electric network of three-phase and four-line neutral-point solid ground, solved the weak point of existing product.
In order to solve the existing problem of background technology; The utility model is to adopt following technical scheme: it comprises power supply processing circuit 1, three-phase and four-line divide-shut brake testing circuit 2, lightning surge absorption circuit 3, personal electric shock detection module circuit 4, electric leakage signal treatment circuit 5 and display circuit 6; Power supply processing circuit 1 is connected with display circuit 6 with person electric shock detection module circuit 4 respectively; Three-phase and four-line divide-shut brake testing circuit 2 absorbs circuit 3 with lightning surge respectively and is connected with personal electric shock detection module circuit 4; Person electric shock detection module circuit 4 is connected with electric leakage signal treatment circuit 5, and electric leakage signal treatment circuit 5 is connected with display circuit 6.
Described personal electric shock detection module circuit 4 is connected with former single chip control module 7.
Described personal electric shock detection module circuit 4 adopts the person electric shock detection module DJJC-500 (also being a scm managing system) of a special use, and other function realizes adopting the single-chip microcomputer of product itself to handle.When DJJC-500 detects useful signal, send a signal DATA and give the single-chip microcomputer of system own, do handled.Wherein three-phase and four-line divide-shut brake testing circuit 2 is as the required signal input sources of DJJC-500.
Described personal electric shock detection module circuit 4 is used for to personal Danger Electric shock risk the indirect contact protection being provided.
The separating brake protection is carried out in the earth fault electric leakage (big leakage current) of 2 pairs of circuits of described three-phase and four-line divide-shut brake testing circuit or power consumption equipment.
5 pairs of overcurrent of described electric leakage signal treatment circuit, short circuit, overvoltage, under-voltage, phase shortage etc. detect and protect.
Lightning surge overvoltage, switching overvoltage that described lightning surge absorbs on 3 pairs of outlet lines of circuit absorb processing, with " electropollution " on the purge line.
The utility model is the multifunctional electric leakage comprehensive protection device that integrates functions such as leakage relay, RCCB, lightning surge absorber, is applicable to the low voltage electric network of three-phase and four-line neutral-point solid ground, has solved the weak point of existing product.
Description of drawings:
Fig. 1 is the structural representation of the utility model.
Embodiment:
With reference to Fig. 1; This embodiment adopts following technical scheme: it comprises power supply processing circuit 1, three-phase and four-line divide-shut brake testing circuit 2, lightning surge absorption circuit 3, personal electric shock detection module circuit 4, electric leakage signal treatment circuit 5 and display circuit 6; Power supply processing circuit 1 is connected with display circuit 6 with person electric shock detection module circuit 4 respectively; Three-phase and four-line divide-shut brake testing circuit 2 absorbs circuit 3 with lightning surge respectively and is connected with personal electric shock detection module circuit 4; Person electric shock detection module circuit 4 is connected with electric leakage signal treatment circuit 5, and electric leakage signal treatment circuit 5 is connected with display circuit 6.
Described personal electric shock detection module circuit 4 is connected with former single chip control module 7.
Described personal electric shock detection module circuit 4 adopts the person electric shock detection module DJJC-500 (also being a scm managing system) of a special use, and other function realizes adopting the single-chip microcomputer of product itself to handle.When DJJC-500 detects useful signal, send a signal DATA and give the single-chip microcomputer of system own, do handled.Wherein three-phase and four-line divide-shut brake testing circuit 2 is as the required signal input sources of DJJC-500.
Described personal electric shock detection module circuit 4 is used for to personal Danger Electric shock risk the indirect contact protection being provided.
The separating brake protection is carried out in the earth fault electric leakage (big leakage current) of 2 pairs of circuits of described three-phase and four-line divide-shut brake testing circuit or power consumption equipment.
5 pairs of overcurrent of described electric leakage signal treatment circuit, short circuit, overvoltage, under-voltage, phase shortage etc. detect and protect.
Lightning surge overvoltage, switching overvoltage that described lightning surge absorbs on 3 pairs of outlet lines of circuit absorb processing, with " electropollution " on the purge line.
This embodiment is the multifunctional electric leakage comprehensive protection device that integrates functions such as leakage relay, RCCB, lightning surge absorber, is applicable to the low voltage electric network of three-phase and four-line neutral-point solid ground, has solved the weak point of existing product.
Claims (2)
1. novel intelligent leakage comprehensive protector; It is characterized in that it comprises power supply processing circuit (1), three-phase and four-line divide-shut brake testing circuit (2), lightning surge absorption circuit (3), personal electric shock detection module circuit (4), electric leakage signal treatment circuit (5) and display circuit (6); Power supply processing circuit (1) is connected with display circuit (6) with person electric shock detection module circuit (4) respectively; Three-phase and four-line divide-shut brake testing circuit (2) absorbs circuit (3) with lightning surge respectively and is connected with personal electric shock detection module circuit (4); Person electric shock detection module circuit (4) is connected with electric leakage signal treatment circuit (5), and electric leakage signal treatment circuit (5) is connected with display circuit (6).
2. novel intelligent leakage comprehensive protector according to claim 1 is characterized in that described personal electric shock detection module circuit (4) is connected with former single chip control module (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201802171U CN202535032U (en) | 2012-04-20 | 2012-04-20 | Novel intelligent electricity leakage comprehensive protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201802171U CN202535032U (en) | 2012-04-20 | 2012-04-20 | Novel intelligent electricity leakage comprehensive protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202535032U true CN202535032U (en) | 2012-11-14 |
Family
ID=47136189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201802171U Expired - Fee Related CN202535032U (en) | 2012-04-20 | 2012-04-20 | Novel intelligent electricity leakage comprehensive protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202535032U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151756A (en) * | 2013-03-29 | 2013-06-12 | 苏州长量电器有限公司 | Controller for residual leakage protection circuit breaker |
-
2012
- 2012-04-20 CN CN2012201802171U patent/CN202535032U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151756A (en) * | 2013-03-29 | 2013-06-12 | 苏州长量电器有限公司 | Controller for residual leakage protection 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 |
Granted publication date: 20121114 Termination date: 20150420 |
|
| EXPY | Termination of patent right or utility model |