CN105137256A - Leakage current monitor control device - Google Patents
Leakage current monitor control device Download PDFInfo
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- CN105137256A CN105137256A CN201510418167.4A CN201510418167A CN105137256A CN 105137256 A CN105137256 A CN 105137256A CN 201510418167 A CN201510418167 A CN 201510418167A CN 105137256 A CN105137256 A CN 105137256A
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- control device
- microprocessor
- leakage current
- current monitor
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Abstract
The invention discloses a leakage current monitor control device and belongs to the technical field of electric power protection equipment. The leakage current monitor control device comprises a housing, and a control module and a power supply module which are arranged in the housing; the housing is provided with a display screen, a plurality of buttons, indicating lamps and communication ports; the control module is controlled by a microprocessor; a pincerlike zero-sequence current transformer is connected with an input end of the microprocessor through a conversion chip; the buttons and the indicating lamps are respectively connected with the input end of the microprocessor; and the display screen is connected with an output end of the microprocessor. The leakage current monitor control device provided with the above structure has the advantages of high intelligent degree, reasonable structure, rapid communication, convenient installation and the like.
Description
Technical field
The present invention relates to a kind of leakage current monitor control device, belong to electrical protection apparatus technical field.
Background technology
Leakage current monitor is a kind of electrical fire caused because of insulation damages formation earth fault electrical equipment or circuit, and person electric shock provides warning, the control device of protection.It can detect residual current, residual current and reference value is compared, and when residual current is greater than reference value, can sends switching signal control executive component and cuts off the electricity supply or send the alerting signals such as sound, light, note, thus play a protective role.Traditional residual current action relay has electric leakage, overload protection function and automatic reclosing function; as electrical equipment generation earth fault or human electric shock; residual current action relay can control rapidly executive component and cut off the electricity supply, and prevents the generation of electrical equipment damage and life injury accident.But traditional residual current action relay is automatically closed after cutting off the electricity supply, and intelligence degree is low, supervisory personnel definitely cannot understand electric leakage information, accurately fault point and dismounting is extremely inconvenient.
In view of this, the present inventor studies this, and develop a kind of leakage current monitor control device specially, this case produces thus.
Summary of the invention
The object of the invention is to overcome prior art defect, the leakage current monitor control device that a kind of intelligence degree is high, rational in infrastructure, communication is quick, easy for installation is provided.
To achieve these goals, solution of the present invention is:
A kind of leakage current monitor control device, comprise shell, and control module in the enclosure and power module are set, described shell is provided with display screen and several buttons, pilot lamp, communication port, described control module adopts Microprocessor S3C44B0X, pincerlike zero sequence current mutual inductor is connected with the input end of microprocessor by conversion chip, and button, pilot lamp are connected with the input end of microprocessor respectively, and display screen is connected with the output terminal of microprocessor.
As preferably, described power module comprises Transformer Rectifier circuit, accumulator charging/discharging circuit and mu balanced circuit, input power is through the step-down of Transformer Rectifier circuit, rectification, it is the power supply such as control module, display screen after mu balanced circuit voltage stabilizing, when the battery tension of accumulator charging/discharging circuit is lower than setting value, Transformer Rectifier circuit starts as charge in batteries, and when input power disconnects, accumulator is the power supply such as control module, display screen by mu balanced circuit.
As preferably, described shell comprises drain pan and upper cover, wherein, display screen and each button, pilot lamp are arranged on and cover, and upper cover is provided with several connection terminal further, and connection terminal is provided with to be renovated, for blocking connection terminal, the side of upper cover is provided with multiple with connection terminal communication port one to one, by communication port, realizes the communication of monitor body and host computer.
As preferably, the described drain pan back side is provided with one for the horizontal mounting groove of mounting guide rail; The both sides up and down of described horizontal mounting groove are provided with longitudinal pumping board groove further, and described pumping board trench bottom is provided with mounting hole; The sidewall of described drain pan is provided with the buckle slot for installing concealed installation panel.
As preferably, described microprocessor adopts model to be the microprocessor of STC12C5A32S2.
As preferably, described conversion chip adopts model to be the single-phase multifunctional computation chip of ATT7053BU.
When leakage current monitor control device of the present invention uses, first the pincerlike zero sequence current mutual inductor be connected in control device is arranged on test line, and the leakage current value detected is input to microprocessor by conversion chip, microprocessor is shown by display screen after data processing, leakage current monitor control device can intelligent-tracking line electrical leakage working value and accurate detection line electric leakage working value (can survey scope 0 ~ 2000mA) can provide alarm in time and transmit electric leakage information, can also by button settings strong early warning range as 30mA ~ 50mA.Compared with traditional leakage current detect instrument, there is following several advantage:
1, when leaking electricity, test line primary power protection switch trips, and the accumulator in power module can ensure that monitor body works under dereliction power supply status, so that reviewer finds out faulty line in time, consult electric leakage information, analyze electric leakage reason, quick position trouble spot;
2, drain pan is provided with the horizontal mounting groove for mounting guide rail, for installing longitudinal pumping board groove of pumping board, the sidewall of both sides is provided with the buckle slot for installing concealed installation panel, multiple mounting modes, can monitor body be hung in panel box, be stuck on guide rail, be embedded in casing door-plate first-class, have easy for installation, and mounting means is various;
3, Microprocessor S3C44B0X is used, accurately can control, show and store, improve intelligence degree, display screen can show much information, comprise data display, leakage current, electric current be set, address, date-time display, alarm indication etc., conveniently consult various information.
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the leakage current monitor control device structural representation of the present embodiment;
Fig. 2 is the monitor control device back structures schematic diagram of the present embodiment;
Fig. 3 is the monitor control device control block diagram of the present embodiment;
Fig. 4 is the monitor body power module schematic diagram of the present embodiment;
Fig. 5 is the monitor body microcontroller circuit figure of the present embodiment.
Embodiment
As shown in Figure 1-2, a kind of leakage current monitor control device, comprise shell 22, and the control module 25 be arranged in shell 22 and power module, described shell 22 is provided with display screen 23 and several button 24, pilot lamp, shell 22 comprises drain pan 22a and upper cover 22b, wherein, display screen 23 and each button 24, pilot lamp are arranged on upper cover 22b, and upper cover 22b is provided with several connection terminal further, connection terminal is provided with renovates 27, for blocking connection terminal.The side of upper cover 22b is provided with multiple with connection terminal communication port 32 one to one, by communication port 32, realizes the communication of monitor body 101 and host computer (the automatically controlled main frame of electrical fire).
The described drain pan 22a back side is provided with one for the horizontal mounting groove 28 of mounting guide rail; The both sides up and down of described horizontal mounting groove 28 are provided with longitudinal pumping board groove 29 further, are provided with mounting hole 30 bottom described pumping board groove 29; The sidewall of described drain pan 22a is provided with the buckle slot 31 for installing concealed installation panel.By multiple mounting grooves that drain pan 22a is arranged, can monitor body 101 be hung in panel box, be stuck on guide rail, be embedded in casing door-plate first-class, have easy for installation, and mounting means be various.
As shown in Figure 3, described control module 25 adopts Microprocessor S3C44B0X, pincerlike zero sequence current mutual inductor 201 external equipment electric wire 13 is connected with monitor body 101, the electric leakage signal of pincerlike zero sequence current mutual inductor 201 is undertaken sending to microprocessor after metering is converted to digital signal by conversion chip 26, button 24, pilot lamp are connected with the input end of microprocessor, and display screen 23 is connected with the output terminal of microprocessor.
As shown in Figure 4, described power module comprises Transformer Rectifier circuit, accumulator charging/discharging circuit and mu balanced circuit, the transformer T1 step-down in Transformer Rectifier circuit of 220V alternating current is 13V alternating current, 13V direct current is exported again through rectifier bridge stack, voltage stabilizing triode 7805 input end is input to again, finally for control module 25 and display screen 23 provide required 5V power supply through diode D1, D3.Because the 9V accumulator in accumulator charging/discharging circuit connects through diode D4, D3, so when lower turn of 220V alternating current powering-off state is by storage battery power supply.When there being 220V voltage because the voltage of diode D4 negative pole be 13V higher than battery tension 9V, so accumulator can not be powered to mu balanced circuit, when control module 25 detects battery tension lower than 8V, relay K 1 adhesive, now charges a battery.
As shown in Figure 5, described microprocessor adopts model to be the microprocessor of STC12C5A32S2.Described conversion chip employing model is the single-phase multifunctional computation chip of ATT7053BU.
When leakage current monitor control device described in the present embodiment uses, first the pincerlike zero sequence current mutual inductor be connected with described control device is arranged on test line, and the leakage current value detected is input to microprocessor by conversion chip 26, microprocessor is shown by display screen 23 after data processing, leakage current monitor can intelligent-tracking equipment leakage value and accurate detection line electrical leakage (can survey scope 0 ~ 2000mA) can provide alarm in time and transmit electric leakage information, can also by button settings strong early warning range as 30mA ~ 50mA.
Above-described embodiment and graphic and non-limiting product form of the present invention and style, any person of an ordinary skill in the technical field, to its suitable change done or modification, all should be considered as not departing from patent category of the present invention.
Claims (6)
1. a leakage current monitor control device, it is characterized in that: comprise shell, and control module in the enclosure and power module are set, described shell is provided with display screen and several buttons, pilot lamp, communication port, described control module adopts Microprocessor S3C44B0X, pincerlike zero sequence current mutual inductor is connected with the input end of microprocessor by conversion chip, and button, pilot lamp are connected with the input end of microprocessor respectively, and display screen is connected with the output terminal of microprocessor.
2. a kind of leakage current monitor control device as claimed in claim 1, it is characterized in that: described power module comprises Transformer Rectifier circuit, accumulator charging/discharging circuit and mu balanced circuit, input power is through the step-down of Transformer Rectifier circuit, rectification, for control module, display screen are powered after mu balanced circuit voltage stabilizing, when the battery tension of accumulator charging/discharging circuit is lower than setting value, Transformer Rectifier circuit starts as charge in batteries, when input power disconnects, accumulator by mu balanced circuit be control module, display screen powers.
3. a kind of leakage current monitor control device as claimed in claim 1, it is characterized in that: described monitor body housing comprises drain pan and upper cover, wherein, display screen and each button, pilot lamp are arranged on and cover, and upper cover is provided with several connection terminal further, and connection terminal is provided with to be renovated, for blocking connection terminal, the side of upper cover is provided with multiple with connection terminal communication port one to one, by communication port, realizes the communication of monitor body and host computer.
4. a kind of leakage current monitor control device as claimed in claim 3, is characterized in that: the described drain pan back side is provided with one for the horizontal mounting groove of mounting guide rail; The both sides up and down of described horizontal mounting groove are provided with longitudinal pumping board groove further, and described pumping board trench bottom is provided with mounting hole; The sidewall of described drain pan is provided with the buckle slot for installing concealed installation panel.
5. a kind of leakage current monitor control device as claimed in claim 1, is characterized in that: described microprocessor adopts model to be the microprocessor of STC12C5A32S2.
6. a kind of leakage current monitor control device as claimed in claim 1, is characterized in that: described conversion chip employing model is the single-phase multifunctional computation chip of ATT7053BU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510418167.4A CN105137256A (en) | 2015-07-16 | 2015-07-16 | Leakage current monitor control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510418167.4A CN105137256A (en) | 2015-07-16 | 2015-07-16 | Leakage current monitor control device |
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| Publication Number | Publication Date |
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| CN105137256A true CN105137256A (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510418167.4A Pending CN105137256A (en) | 2015-07-16 | 2015-07-16 | Leakage current monitor control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109742744A (en) * | 2019-01-21 | 2019-05-10 | 安徽升隆电气有限公司 | A kind of electric wiring current-limiting protection device |
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| CN2624215Y (en) * | 2003-06-04 | 2004-07-07 | 秦永刚 | Intelligent digital display pocket leakage current protector detecting instrument |
| CN1835317A (en) * | 2006-04-07 | 2006-09-20 | 王继存 | Intelligent electricity leakage protector |
| CN103248134A (en) * | 2013-05-09 | 2013-08-14 | 广西电网公司电力科学研究院 | Electric energy extracting device for cable partial discharge on-line detection |
| CN203178348U (en) * | 2013-04-08 | 2013-09-04 | 临安亿安电力电子科技有限公司 | Large-aperture leakage current clamp meter |
| CN103630736A (en) * | 2013-12-04 | 2014-03-12 | 国家电网公司 | MSP430 single chip microcomputer based on-line insulator leakage current monitoring device |
| CN204333889U (en) * | 2014-11-28 | 2015-05-13 | 国家电网公司 | A kind of earth leakage protective device |
| CN204789853U (en) * | 2015-07-16 | 2015-11-18 | 国网浙江义乌市供电公司 | Leakage current monitor controlling means |
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2015
- 2015-07-16 CN CN201510418167.4A patent/CN105137256A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2624215Y (en) * | 2003-06-04 | 2004-07-07 | 秦永刚 | Intelligent digital display pocket leakage current protector detecting instrument |
| CN1835317A (en) * | 2006-04-07 | 2006-09-20 | 王继存 | Intelligent electricity leakage protector |
| CN203178348U (en) * | 2013-04-08 | 2013-09-04 | 临安亿安电力电子科技有限公司 | Large-aperture leakage current clamp meter |
| CN103248134A (en) * | 2013-05-09 | 2013-08-14 | 广西电网公司电力科学研究院 | Electric energy extracting device for cable partial discharge on-line detection |
| CN103630736A (en) * | 2013-12-04 | 2014-03-12 | 国家电网公司 | MSP430 single chip microcomputer based on-line insulator leakage current monitoring device |
| CN204333889U (en) * | 2014-11-28 | 2015-05-13 | 国家电网公司 | A kind of earth leakage protective device |
| CN204789853U (en) * | 2015-07-16 | 2015-11-18 | 国网浙江义乌市供电公司 | Leakage current monitor controlling means |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109742744A (en) * | 2019-01-21 | 2019-05-10 | 安徽升隆电气有限公司 | A kind of electric wiring current-limiting protection device |
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Application publication date: 20151209 |