CN104360202A - Intelligent test system for leakage protectors - Google Patents
Intelligent test system for leakage protectors Download PDFInfo
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- CN104360202A CN104360202A CN201410686911.4A CN201410686911A CN104360202A CN 104360202 A CN104360202 A CN 104360202A CN 201410686911 A CN201410686911 A CN 201410686911A CN 104360202 A CN104360202 A CN 104360202A
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- leakage current
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Abstract
The invention discloses an intelligent test system for leakage protectors. The intelligent test system for the leakage protectors is characterized by comprising a programmable leakage current source, a leakage current detecting module, a microcontroller module, a power voltage regulating unit, a display module and a keyboard input module; the programmable leakage current source is connected with the leakage current detecting unit, the microcontroller module is connected with the programmable leakage current source, the leakage current detecting module, the microcontroller module and the keyboard input module, and the microcontroller module comprises a comparison module and a control unit. The intelligent test system for the leakage protectors can guarantee that leakage currents are increased evenly, can detect the leakage protectors operating online and offline, improves the level for detecting the performance of the leakage protectors, and provides a technical means for working performance research, quality inspection and production adjustment of the leakage protectors.
Description
Technical field
The present invention relates to a kind of test macro, particularly relate to a kind of intelligent test system of earth leakage protective device, belong to field tests.
Background technology
At present, earth leakage protective device is as a kind of novel low-voltage variation electrical equipment no matter in city or install and use very general in rural area, and the reliability of its work directly affects personal safety.At the Electrical Safety protective device that the U.S. is government's mandatory provision implementation, and every two years must change.Although the time limit that the use of China to earth leakage protective device does not have mandatory provision to change, consider from the angle of Electrical Safety, regularly earth leakage protective device serviceability is detected and must be done.
Along with the fast development of China's power industry, power consumption increases rapidly, and the electrical hazard caused because of electrical equipment or line electrical leakage happens occasionally, and therefore, this problem of safety utilization of electric power seems more and more important.Existing safeguard measure is generally and arranges a residual current operated protective device; be called for short earth leakage protective device; being also called earth leakage circuit-breaker, is a kind of electric safety device, is mainly used to protect when equipment generation leak current fault and to there being the person of fatal risk to get an electric shock.Generally earth leakage protective device is arranged in low-voltage circuit; when there is electric leakage and getting an electric shock; and when reaching the action current value that protector limits; with regard to immediately within the time limited action auto power off protect, its main performance parameter has: rated residual operating current, specified electric leakage actuation time, specified electric leakage non-operating current etc.
Concrete; in order to the normal work in electrical equipment path can be ensured; its operating voltage of this earth leakage protection will adapt to electrical network normal fluctuation range rated voltage; if voltage fluctuation is too large; protector can be affected normally work; especially electronic product, supply voltage is lower than meeting refused action during protector rated operational voltage.And the rated operational current of earth leakage protective device, also consistent with the actual current in loop, if when opportunity, working current was greater than the rated current of shop, road protector, overload can be caused and make False Leakage Protector Operation.
Such as a kind of earth leakage protective device of application number " 201410325914.5 ", comprise base, lid, tripping mechanism, described tripping mechanism comprises support, coil former, locating shaft, handle, tripping, trip assembley therefor, be arranged on two movable contact springs on base, the tip side place of corresponding each movable contact spring is arranged on the static contact on base, the contact rack device of two movable contact spring actions can be driven in the mounting groove being arranged on base, trip assembley therefor comprises to be detained again, with detain the snap close that is linked again, and be provided with spring between button and snap close again, described button is again arranged on the lower end of handle, and be linked with handle, described tripping is provided with corresponding stopper slot in the abutting end place of snap close, described coil former is provided with iron core, iron core is provided with coil, one end of described iron core is fixed on the side of tripping, and described iron core can drive tripping to rotate around locating shaft.It is simple, compact and get an electric shock in reaction and have the advantage of high sensitivity and action rapidity in earth leakage protection that this invention has structure.This invention relates to a kind of earth leakage protective device, regularly detects extremely important to earth leakage protective device serviceability, be necessary to propose a kind of structure simple, and the electric leakage that the acting characteristic of earth leakage protective device is tested is protected
Protect device test macro.
And for example application number is a kind of earth leakage protection supervisory systems and the method for " 201310460357.3 ", and this earth leakage protection supervisory systems is made up of on-site data gathering device, earth leakage protective device testing instrument, information transmission adapter, Management software platform four parts.Earth leakage protective device testing instrument is connected with Management software platform in GPRS mode by information transmission adapter and on-site data gathering device.This earth leakage protection monitoring and managing method comprises: earth leakage protective device testing instrument is tested earth leakage protective device performance, use the typing Information Monitoring of on-site data gathering device and be uploaded to Management software platform, the data of Management software platform to typing process.The data that earth leakage protective device testing instrument detects by the present invention are by information transmission adapter and on-site data gathering device; adopt GPRS mode that information is delivered to Management software platform automatically; efficiently solve earth leakage protective device and run supervision problem; achieve the tracking to earth leakage protective device life cycle, accomplished to manage the precision of earth leakage protective device.Although this invention carries out precise management to earth leakage protective device, still need a kind of structure simple, and to the earth leakage protective device test macro that the acting characteristic of earth leakage protective device is tested.
Summary of the invention
Technical matters to be solved by this invention is that to provide a kind of structure for the deficiency of background technology simple, easy to operate, and can ensure that leakage current evenly increases, and the intelligent test system to the earth leakage protective device that earth leakage protective device leakage current is measured.
The present invention is for solving the problems of the technologies described above by the following technical solutions
An intelligent test system for earth leakage protective device, comprises leakage current source able to programme, leakage current detecting module, micro controller module, electric power pressure regulation unit, input through keyboard module; Described leakage current source able to programme connects leakage current detecting unit and electric power pressure regulation unit, described micro controller module respectively with leakage current detecting module, electric power pressure regulation unit and input through keyboard model calling, described micro controller module comprises a contrast unit and a control module;
Wherein, leakage current source able to programme, for generation of the leakage current of even variation;
Leakage current detecting module, for detecting and gather the leakage current parameter that leakage current source able to programme produces in real time;
Input through keyboard module, for the setting value of default measuring current;
Contrast unit, for contrasting the leakage current parameter of leakage current detecting module detection and collection and setting value; If be not equal to setting value, then send information to control module;
Control module, carries out analyzing and processing for the information sent according to contrast unit, and then is adjusted to setting value by the leakage current that electric power pressure regulation unit controls leakage current source able to programme produces.
As the further preferred version of the intelligent test system of a kind of earth leakage protective device of the present invention, described programmable current is touched change-over circuit by sine-wave generator and of ac number and is formed
As the further preferred version of the intelligent test system of a kind of earth leakage protective device of the present invention, this system also comprises display unit, for showing the leakage current parameter of the leakage current source able to programme generation detecting and gather in real time.
As the further preferred version of the intelligent test system of a kind of earth leakage protective device of the present invention, described microcontroller mould is ATmega32 series monolithic.
As the further preferred version of the intelligent test system of a kind of earth leakage protective device of the present invention, described display unit is three LED charactrons.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
1, simple to operate, solve the inaccurate problem of measurement that manual testing process exists, reach the object automatically measured;
2, enough ensure that leakage current evenly increases;
3, earth leakage protective device that is online and non-on-line operation can being detected, improve the level detecting earth leakage protective device performance, providing technological means for carrying out the research of earth leakage protective device serviceability, quality restriction and scheduling and planning.
Accompanying drawing explanation
Fig. 1 is structure principle chart of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
As shown in Figure 1, a kind of intelligent test system of earth leakage protective device, comprises leakage current source able to programme, leakage current detecting module, micro controller module, electric power pressure regulation unit, input through keyboard module; Described leakage current source able to programme connects leakage current detecting unit and electric power pressure regulation unit, described micro controller module respectively with leakage current detecting module, electric power pressure regulation unit and input through keyboard model calling, described micro controller module comprises a contrast unit and a control module;
Wherein, leakage current source able to programme, for generation of the leakage current of even variation;
Leakage current detecting module, for detecting and gather the leakage current parameter that leakage current source able to programme produces in real time;
Input through keyboard module, for the setting value of default measuring current;
Contrast unit, for contrasting the leakage current parameter of leakage current detecting module detection and collection and setting value; If be not equal to setting value, then send information to control module;
Control module, carries out analyzing and processing for the information sent according to contrast unit, and then is adjusted to setting value by the leakage current that electric power pressure regulation unit controls leakage current source able to programme produces.
Wherein, described programmable current is touched change-over circuit by sine-wave generator and of ac number and is formed, this system also comprises display unit, for showing the leakage current parameter of the leakage current source able to programme generation detecting and gather in real time, described microcontroller mould is ATmega32 series monolithic, and described display unit is three LED charactrons.
The present invention for core, expands programmable leakage current source, the testing circuit of leakage current, the observation circuit of contact state, the peripherals such as keyboard and display with single chip computer AT mega32.ATmega32 is 8 8-digit microcontrollers based on enhancement mode AVR risc architecture, and instruction set is advanced, and instruction time adopts single clock cycle, and speed is 8 ~ 12 times of common 8051 single-chip microcomputers.Frequency of operation reaches 16MHz, and 32K bytes Flash program storage in sheet, 1 hardware 16 bit timing device and 28 bit timing devices, 4 road PWM export, 8 road A/D change, 1 asynchronous pull-duplex extending serial port, 32 universaling I/O ports.Have low-power consumption, at a high speed, the superpower advantage such as anti-interference, there is higher cost performance in like product.
Leakage current source able to programme: ensure that the key of measurement accuracy is the leakage current that leakage current source able to programme can produce even variation, this leakage current source is touched change-over circuit formed by the sine-wave generator of 50Hz, of ac number.
The RC sine wave oscillation circuit of 50Hz sine-wave generator: 50Hz is made up of operational amplifier.The amplitude of stable oscillation stationary vibration signal adopts non-linear negative feedback, meanwhile, adopt the resistance of low-temperature coefficient and capacity cell to form the frequency selection circuit of RC sine wave oscillation circuit, ensure the stable of oscillation frequency, in order to improve load-carrying ability, sine wave signal output exports through voltage follower.
The course of work: detected in real time by leakage current detecting module and gather the measuring current that leakage current source able to programme produces, and this measuring current being sent to single-chip microcomputer; The measuring current value of this single-chip microcomputer to Real-time Collection compares with setting value, and the leakage current that this Single-chip Controlling electric power pressure regulation unit controls leakage current source able to programme produces is adjusted to setting value.
The present invention is simple to operate; solve the inaccurate problem of measurement that manual testing process exists; reach the object automatically measured; earth leakage protective device that is online and non-on-line operation can be detected; improve the level detecting earth leakage protective device performance, providing technological means for carrying out the research of earth leakage protective device serviceability, quality restriction and scheduling and planning.Instrument Design takes full advantage of the built-in various functions of ATmega 32, makes hardware circuit simple, effectively improves the cost performance of instrument, uses in many enterprises and R&D institution, uses result to show that instrument reliable operation reaches the technical indicator of expection.
Each circuit of earth leakage protective device test macro provided by the invention is not limited to the circuit types that the present embodiment provides; single-chip microcomputer or digital tube display device etc. can also be replaced by arranging other micro controller module or display device and sampling hold circuit; thus can realize enabling leakage current evenly increase leakage current under control of the microprocessor in the present invention, effectively measure the object of earth leakage protective device measuring current.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And these belong to connotation of the present invention the apparent change of extending out or variation still belong to protection scope of the present invention.
Claims (5)
1. an intelligent test system for earth leakage protective device, is characterized in that: comprise leakage current source able to programme, leakage current detecting module, micro controller module, electric power pressure regulation unit, input through keyboard module; Described leakage current source able to programme connects leakage current detecting unit and electric power pressure regulation unit, described micro controller module respectively with leakage current detecting module, electric power pressure regulation unit and input through keyboard model calling, described micro controller module comprises a contrast unit and a control module;
Wherein, leakage current source able to programme, for generation of the leakage current of even variation;
Leakage current detecting module, for detecting and gather the leakage current parameter that leakage current source able to programme produces in real time;
Input through keyboard module, for the setting value of default measuring current;
Contrast unit, for contrasting the leakage current parameter of leakage current detecting module detection and collection and setting value; If be not equal to setting value, then send information to control module;
Control module, carries out analyzing and processing for the information sent according to contrast unit, and then is adjusted to setting value by the leakage current that electric power pressure regulation unit controls leakage current source able to programme produces.
2. the intelligent test system of a kind of earth leakage protective device according to claim 1, is characterized in that: described programmable current is touched change-over circuit by sine-wave generator and of ac number and formed.
3. the intelligent test system of a kind of earth leakage protective device according to claim 1, is characterized in that: this system also comprises display unit, for showing the leakage current parameter of the leakage current source able to programme generation detecting and gather in real time.
4. the intelligent test system of a kind of earth leakage protective device according to claim 1, is characterized in that: described microcontroller mould is ATmega32 series monolithic.
5. the intelligent test system of a kind of earth leakage protective device according to claim 3, is characterized in that: described display unit is three LED charactrons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410686911.4A CN104360202A (en) | 2014-11-25 | 2014-11-25 | Intelligent test system for leakage protectors |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410686911.4A CN104360202A (en) | 2014-11-25 | 2014-11-25 | Intelligent test system for leakage protectors |
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| CN104360202A true CN104360202A (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410686911.4A Withdrawn CN104360202A (en) | 2014-11-25 | 2014-11-25 | Intelligent test system for leakage protectors |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137225A (en) * | 2015-07-31 | 2015-12-09 | 苏州宏展信息科技有限公司 | Electric leakage protector monitoring system based on voltage-stabilizing circuit |
| CN105158595A (en) * | 2015-07-31 | 2015-12-16 | 苏州宏展信息科技有限公司 | Leakage protector monitoring system based on sine wave generator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4450349B2 (en) * | 2000-11-16 | 2010-04-14 | 河村電器産業株式会社 | Earth leakage detector test circuit |
| CN103499756A (en) * | 2013-09-29 | 2014-01-08 | 周力行 | Leakage protector supervisory system and method |
| CN103926488A (en) * | 2014-04-04 | 2014-07-16 | 苏州工业职业技术学院 | System for testing electric leakage protector |
| CN203811710U (en) * | 2014-04-04 | 2014-09-03 | 苏州工业职业技术学院 | Electric leakage protector testing system |
| CN104091733A (en) * | 2014-07-02 | 2014-10-08 | 温州能美电器有限公司 | Leakage protector |
-
2014
- 2014-11-25 CN CN201410686911.4A patent/CN104360202A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4450349B2 (en) * | 2000-11-16 | 2010-04-14 | 河村電器産業株式会社 | Earth leakage detector test circuit |
| CN103499756A (en) * | 2013-09-29 | 2014-01-08 | 周力行 | Leakage protector supervisory system and method |
| CN103926488A (en) * | 2014-04-04 | 2014-07-16 | 苏州工业职业技术学院 | System for testing electric leakage protector |
| CN203811710U (en) * | 2014-04-04 | 2014-09-03 | 苏州工业职业技术学院 | Electric leakage protector testing system |
| CN104091733A (en) * | 2014-07-02 | 2014-10-08 | 温州能美电器有限公司 | Leakage protector |
Non-Patent Citations (1)
| Title |
|---|
| 滕松林,王立彬: "漏电保护器智能测试仪的研究", 《北京农业工程大学学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137225A (en) * | 2015-07-31 | 2015-12-09 | 苏州宏展信息科技有限公司 | Electric leakage protector monitoring system based on voltage-stabilizing circuit |
| CN105158595A (en) * | 2015-07-31 | 2015-12-16 | 苏州宏展信息科技有限公司 | Leakage protector monitoring system based on sine wave generator |
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Application publication date: 20150218 |