CN103532092A - Novel electric leakage protector - Google Patents
Novel electric leakage protector Download PDFInfo
- Publication number
- CN103532092A CN103532092A CN201310477525.XA CN201310477525A CN103532092A CN 103532092 A CN103532092 A CN 103532092A CN 201310477525 A CN201310477525 A CN 201310477525A CN 103532092 A CN103532092 A CN 103532092A
- Authority
- CN
- China
- Prior art keywords
- electric leakage
- leakage protector
- protective device
- module
- earth leakage
- 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
Images
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses a novel electric leakage protector. The novel electric leakage protector comprises a signal acquisition module, an A/D (Analog/Digital) conversion module and an electric leakage protector body, wherein a signal input end of the electric leakage protector body is connected with a signal output end of the A/D conversion module; a signal input end of the A/D conversion module is connected with a signal output end of the signal acquisition module; the electric leakage protector is also connected with an inverse time limit judgment module and a fault alarm module respectively; the electric leakage protector body is connected with a testing module. The invention provides the novel electric leakage protector; when electric leakages occurs, the electric leakage protector can give an alarm; the safety of the electric leakage protector can be periodically estimated; the safety of the mounted inverse time limit judgment module is improved.
Description
Technical field
The present invention relates to a kind of novel earth leakage protective device.
Background technology
The leakage current action protecting device extensively adopting in low-voltage network, i.e. electric energy loss, electrical fire and the electric equipment damage accident of RCD for preventing accident of human electric shock and preventing from being caused by electric leakage.Leakage current protection device is concerning personal safety as well as the property safety, and its reliability is an important technical indicator, China 1986 has promulgated (nineteen ninety-five modification) first mandatory national standards about RCD property indices.
In China's low-voltage network, implementation be three-level protective.Be mounted in respectively distribution low-voltage side the total protector of electric leakage, be arranged on the branch protector that enters collection table case and the final stage protector that is arranged on each household mains side.According to GB6829-1995, " in the machinery industry standard JB8756-1998 of the General Requirements 》He People's Republic of China (PRC) " aftercurrent action protecting condenser " of RCD, the security performance of earth leakage protective device has been proposed to strict requirement.Generally, current earth leakage protective device, before leaking electricity, protector can oneself not reported to the police.Can not regularly to the reliability of the security performance of the action of earth leakage protective device, detect.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of novel earth leakage protective device, when there is electric leakage, Electrical leakage can be reported to the police; Fail safe that can periodical evaluation earth leakage protective device, the inverse time lag judge module of installation, security performance is improved.
Technical scheme: for achieving the above object, the invention provides following technical scheme:
A kind of novel earth leakage protective device, comprise signal acquisition module, A/D modular converter and earth leakage protective device body, the signal input part of described earth leakage protective device body is connected with the signal output part of A/D modular converter, and the signal input part of A/D modular converter is connected with the signal output part of signal acquisition module; Described earth leakage protective device is also connected with fault alarm module with inverse time lag judge module respectively.
Wherein, on earth leakage protective device body, be connected with test module.
Beneficial effect: the fault alarm module that earth leakage protective device body of the present invention connects, in the process of using at circuit, one has electric leakage, and fault alarm module will automatic alarm.The inverse time lag judge module connecting on earth leakage protective device body, meets the time of delay of protection action and the degree of line electrical leakage amount overrate and is inversely proportional to.Meanwhile, the test module being connected with at earth leakage protective device body, is used for regularly detecting the safe action reliability of earth leakage protective device.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1, a kind of novel earth leakage protective device, comprises signal acquisition module, A/D modular converter and earth leakage protective device body, and the signal input part of described earth leakage protective device body is connected with the signal output part of A/D modular converter; The signal input part of A/D modular converter is connected with the signal output part of signal acquisition module; By the A/D modular converter connecting, the analog signal of leakage current is converted into digital signal.
Leakage current, through signal acquisition module, amplifies electric current, then by A/D modular converter, the analog signal of leakage current is converted into digital signal, is transferred on earth leakage protective device body.Earth leakage protective device body is connected with test module with inverse time lag judge module, fault alarm module respectively.
Described earth leakage protective device body and inverse time lag judge module.When 2 times of leakage currents are when rated residual operating current and 5 times are between rated residual operating current, operating current is made as 0.2s.When leakage current is greater than 5 times of rated residual operating currents, be made as 0.15s operate time.When meeting above action request, this protector also has automatic reclosing function.
Described earth leakage protective device body is connected with fault alarm module.By fault alarm module, in the process of using at circuit, one has electric leakage, and fault alarm module will automatic alarm.
Wherein, on described earth leakage protective device body, be connected with test module; Described test module is divided into corresponding three 100mA, 300mA, the gear of these 3 tripping operations of 500mA.When enabling test module, by checking reliability and the validity of the earth leakage protective device in respective notch.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (2)
1. a novel earth leakage protective device, it is characterized in that: comprise signal acquisition module, A/D modular converter and earth leakage protective device body, the signal input part of described earth leakage protective device body is connected with the signal output part of A/D modular converter, and the signal input part of A/D modular converter is connected with the signal output part of signal acquisition module; Described earth leakage protective device is also connected with fault alarm module with inverse time lag judge module respectively.
2. a kind of novel earth leakage protective device according to claim 1, is characterized in that: on earth leakage protective device body, be connected with test module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310477525.XA CN103532092A (en) | 2013-10-14 | 2013-10-14 | Novel electric leakage protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310477525.XA CN103532092A (en) | 2013-10-14 | 2013-10-14 | Novel electric leakage protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103532092A true CN103532092A (en) | 2014-01-22 |
Family
ID=49933893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310477525.XA Pending CN103532092A (en) | 2013-10-14 | 2013-10-14 | Novel electric leakage protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103532092A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769156A (en) * | 2016-08-18 | 2018-03-06 | 中国电力科学研究院 | A kind of method of achievable equipment safety adaptive guard action |
| CN108649538A (en) * | 2018-04-23 | 2018-10-12 | 北京和利时智能技术有限公司 | A kind of method of low-voltage leakage inverse time-lag protection |
| CN108736439A (en) * | 2018-07-20 | 2018-11-02 | 余姚市嘉荣电子电器有限公司 | A kind of earth leakage protective device |
-
2013
- 2013-10-14 CN CN201310477525.XA patent/CN103532092A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769156A (en) * | 2016-08-18 | 2018-03-06 | 中国电力科学研究院 | A kind of method of achievable equipment safety adaptive guard action |
| CN107769156B (en) * | 2016-08-18 | 2020-07-07 | 中国电力科学研究院 | Method for realizing safe self-adaptive protection action of equipment |
| CN108649538A (en) * | 2018-04-23 | 2018-10-12 | 北京和利时智能技术有限公司 | A kind of method of low-voltage leakage inverse time-lag protection |
| CN108736439A (en) * | 2018-07-20 | 2018-11-02 | 余姚市嘉荣电子电器有限公司 | A kind of earth leakage protective device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103311884B (en) | A kind of Self-recover overvoltage-undervoltage protector with creepage protection function | |
| CN104410042B (en) | A kind of intelligent substation relay protecting method based on double AD samplings | |
| CN204216675U (en) | Based on power distribution cabinet electric leakage monitoring and the guard system of CAN formula | |
| CN104678342A (en) | Intelligent self-checking method for residual current detection circuit based on signal injection mode | |
| CN103532092A (en) | Novel electric leakage protector | |
| CN201199630Y (en) | Leakage protector with zero-off protection | |
| CN202333747U (en) | Electric leakage protection device of guard ground system | |
| CN201133924Y (en) | Differential voltage transformer turn-to-turn short circuit detection device | |
| CN103762557A (en) | Device and method for open-circuit-resistant protection of current transformer | |
| CN103208772B (en) | A kind of high-voltage mutual inductor test protective device with multiple protection functions | |
| CN202034769U (en) | Plastic shell leakage controller for three-phase power supply | |
| CN203787934U (en) | Multifunctional fireproof short-circuit protector equipped with redundant device | |
| CN202903864U (en) | Electric leakage current detection device of single-phase AC power supply circuit | |
| CN201674281U (en) | Electrical leakage protector with wireless communication function | |
| CN201699392U (en) | Electrical leakage protector for pressing machine | |
| CN205195233U (en) | Power leakage protector | |
| CN204740306U (en) | Electric leakage SMS alarm device | |
| CN103532093A (en) | Leakage protector capable of monitoring | |
| CN202693726U (en) | Detection circuit and detection system for electric transmission and transformation equipment | |
| CN102237714A (en) | Multipath residual current monitoring/protecting device with wireless or carrier transmission module | |
| CN204131092U (en) | The connection circuit of current transformer in the backup protection of a kind of main transformer height | |
| CN202840479U (en) | Underground coal mine high-voltage switch protector | |
| CN204595083U (en) | Relay-set alternating voltage monitoring arrangement | |
| CN202004430U (en) | Earth leakage protection device of grid-connected photovoltaic inverter | |
| CN204144901U (en) | A kind of automatic reclosing power protector with anti-stealing electricity function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140122 |
|
| WD01 | Invention patent application deemed withdrawn after publication |