CN208239557U - A kind of low-voltage network grounding monitoring device - Google Patents
A kind of low-voltage network grounding monitoring device Download PDFInfo
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- CN208239557U CN208239557U CN201820563423.8U CN201820563423U CN208239557U CN 208239557 U CN208239557 U CN 208239557U CN 201820563423 U CN201820563423 U CN 201820563423U CN 208239557 U CN208239557 U CN 208239557U
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Abstract
The utility model discloses a kind of low-voltage network grounding monitoring devices, including two low voltage network grounding monitoring devices, distribution transformer terminals, concentrator, metering system main website and computer；Wherein the input terminal of low voltage network grounding monitoring device 1 accesses ac bus, and output end is electrically connected with the input terminal of distribution transformer terminals；The output end wireless access metering system main website of distribution transformer terminals；The input terminal of low voltage network grounding monitoring device 2 accesses ac bus, and output end is electrically connected with the input terminal of concentrator；The output end wireless access metering system main website of concentrator；The output end and computer of metering system main website carry out telecommunications connection.
Description
Technical field
The utility model relates to power distribution networks to monitor field, more particularly, to a kind of low-voltage network grounding monitoring device.
Background technique
Low-voltage network status: (1) low-voltage circuit insulating layer is damaged；(2) " three lines " is affiliated to, these are all very common；
The one ground stealing of (3) one phase is on a rampage in the nineties, still remains now, is difficult to arrest this electricity filching person with inspection personnel.More than
Three kinds of situations can all lead to low-voltage network ground fault, it would be desirable to find in time and eliminate failure.Tradition searches failure side
Method is whether the ground line that operation maintenance personnel holds electric current split-core type meter to in-site measurement transformer has an electric current, this method by the time,
The factors such as personage, environment, weather, pendulous frequency influence, it is difficult to find ground fault in time.
Summary of the invention
The purpose of this utility model is to solve said one or multiple defects, designs a kind of low-voltage network grounding monitor dress
It sets.
To realize the above goal of the invention, the technical solution adopted is that:
A kind of low-voltage network grounding monitor system, including two low voltage network grounding monitoring devices, distribution transformer terminals, concentrations
Device, metering system main website and computer；Wherein low voltage network grounding monitoring device 1 input terminal access ac bus, output end with
The input terminal of distribution transformer terminals is electrically connected；The output end wireless access metering system main website of distribution transformer terminals；Low voltage network grounding monitor dress
2 input terminal access ac bus is set, output end is electrically connected with the input terminal of concentrator；The output end wireless access meter of concentrator
Amount system main website；The output end and computer of metering system main website carry out telecommunications connection.
Preferably, the low voltage network grounding monitoring device 1 includes measurement table, terminal box, current transformer S1 and electric current
Mutual inductor S2；The input terminal for wherein measuring table accesses ac bus by terminal box, passes through terminal box and current transformer S1, electricity
Current transformer S2 electrical connection；The output end for measuring table accesses distribution transformer terminals by 485 lines.
Preferably, the low voltage network grounding monitoring device 2 includes measurement table, terminal box, current transformer S1 and electric current
Mutual inductor S2；The input terminal for wherein measuring table accesses ac bus by terminal box, passes through terminal box and current transformer S1, electricity
Current transformer S2 electrical connection；The output end for measuring table passes through power line carrier access concentrator.
Preferably, the measurement table is single-phase intelligent ammeter, includes power line carrier module and 485 communications in measurement table
Module.
Preferably, described be wirelessly connected is one of wifi connection or GPRS connection.
Preferably, the metering system main website further includes a database, and the database is for storing data.
Preferably, the computer is in desktop computer, laptop, hand-portable palm PC or mobile terminal
One kind.
Compared with prior art, the beneficial effects of the present invention are:
1) 24 hours on-line monitoring low-voltage network earth current data of the utility model energy, not by time, personnel, ring
Border, weather, pendulous frequency factor influence, and can find the ground fault of low-voltage network in time, improve the safety management water of power grid
It is flat, reduce electric quantity loss；
2) data are transferred to metering system database by measuring terminal by the utility model, can query history data；
3) the utility model can be grounded data in the low-voltage network that office inquires a distant place, be not required to scene, improve
Operation maintenance personnel working efficiency.
Detailed description of the invention
Fig. 1 is the system construction drawing of the utility model.
Specific embodiment
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；
Below in conjunction with drawings and examples, the present invention is further elaborated.
Embodiment 1
A kind of low-voltage network grounding monitor system, including two low voltage network grounding monitoring devices, distribution transformer terminals, concentrations
Device, metering system main website and computer；Wherein low voltage network grounding monitoring device 1 input terminal access ac bus, output end with
The input terminal of distribution transformer terminals is electrically connected；The output end wireless access metering system main website of distribution transformer terminals；Low voltage network grounding monitor dress
2 input terminal access ac bus is set, output end is electrically connected with the input terminal of concentrator；The output end wireless access meter of concentrator
Amount system main website；The output end and computer of metering system main website carry out telecommunications connection.
In the present embodiment, the low voltage network grounding monitoring device 1 includes measurement table, terminal box, current transformer S1 and electricity
Current transformer S2；The input terminal for wherein measuring table accesses ac bus by terminal box, by terminal box and current transformer S1,
Current transformer S2 electrical connection；The output end for measuring table accesses distribution transformer terminals by 485 lines.
In the present embodiment, the low voltage network grounding monitoring device 2 includes measurement table, terminal box, current transformer S1 and electricity
Current transformer S2；The input terminal for wherein measuring table accesses ac bus by terminal box, by terminal box and current transformer S1,
Current transformer S2 electrical connection；The output end for measuring table passes through power line carrier access concentrator.
In the present embodiment, the measurement table is single-phase intelligent ammeter, includes that power line carrier module and 485 are logical in measurement table
Believe module.
In the present embodiment, described be wirelessly connected is one of wifi connection or GPRS connection.
In the present embodiment, the metering system main website further includes a database, and the database is for storing data.
In the present embodiment, the computer is desktop computer, laptop, hand-portable palm PC or mobile terminal
One of.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (7)
1. a kind of low-voltage network grounding monitoring device, which is characterized in that whole including two low voltage network grounding monitoring devices, distribution transforming
End, concentrator, metering system main website and computer；Wherein the input terminal of low voltage network grounding monitoring device 1 accesses ac bus, defeated
Outlet is electrically connected with the input terminal of distribution transformer terminals；The output end wireless access metering system main website of distribution transformer terminals；Low voltage network ground connection
The input terminal of monitoring device 2 accesses ac bus, and output end is electrically connected with the input terminal of concentrator；The output end of concentrator is wireless
Access metering system main website；The output end and computer of metering system main website carry out telecommunications connection.
2. a kind of low-voltage network grounding monitoring device according to claim 1, which is characterized in that the low voltage network ground connection
Monitoring device 1 includes measurement table, terminal box, current transformer S1 and current transformer S2；Wherein the input terminal of measurement table passes through
Terminal box accesses ac bus, is electrically connected by terminal box with current transformer S1, current transformer S2；Measure the output end of table
Distribution transformer terminals are accessed by 485 lines.
3. a kind of low-voltage network grounding monitoring device according to claim 1, which is characterized in that the low voltage network ground connection
Monitoring device 2 includes measurement table, terminal box, current transformer S1 and current transformer S2；Wherein the input terminal of measurement table passes through
Terminal box accesses ac bus, is electrically connected by terminal box with current transformer S1, current transformer S2；Measure the output end of table
Pass through power line carrier access concentrator.
4. according to a kind of described in any item low-voltage network grounding monitoring devices of claim 2-3, which is characterized in that the survey
Scale is single-phase intelligent ammeter, includes power line carrier module and 485 communication modules in measurement table.
5. a kind of low-voltage network grounding monitoring device according to claim 1, which is characterized in that the wireless connection is
One of wifi connection or GPRS connection.
6. a kind of low-voltage network grounding monitoring device according to claim 1, which is characterized in that the metering system master
Station further includes a database, and the database is for storing data.
7. a kind of low-voltage network grounding monitoring device according to claim 1, which is characterized in that the computer is platform
One of formula computer, laptop, hand-portable palm PC or mobile terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820563423.8U CN208239557U (en) | 2018-04-19 | 2018-04-19 | A kind of low-voltage network grounding monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820563423.8U CN208239557U (en) | 2018-04-19 | 2018-04-19 | A kind of low-voltage network grounding monitoring device |
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| Publication Number | Publication Date |
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| CN208239557U true CN208239557U (en) | 2018-12-14 |
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| CN201820563423.8U Active CN208239557U (en) | 2018-04-19 | 2018-04-19 | A kind of low-voltage network grounding monitoring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426603A (en) * | 2019-08-30 | 2019-11-08 | 广东电网有限责任公司 | A method of detection low-voltage network ground fault and one ground stealing of a line |
-
2018
- 2018-04-19 CN CN201820563423.8U patent/CN208239557U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426603A (en) * | 2019-08-30 | 2019-11-08 | 广东电网有限责任公司 | A method of detection low-voltage network ground fault and one ground stealing of a line |
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