CN208477055U - A kind of high-low pressure metering cabinet wiring testing device - Google Patents
A kind of high-low pressure metering cabinet wiring testing device Download PDFInfo
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- CN208477055U CN208477055U CN201821213719.3U CN201821213719U CN208477055U CN 208477055 U CN208477055 U CN 208477055U CN 201821213719 U CN201821213719 U CN 201821213719U CN 208477055 U CN208477055 U CN 208477055U
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Abstract
The utility model discloses a kind of high-low pressure metering cabinet wiring testing devices, including main body, the main body include for generate the signal generating module of standard signal, for from high-low pressure metering cabinet obtain detection signal acquisition module, for carry out standard signal and detect signal Lissajous-like pattern picture synthesis show and export the detection module of detection data, be used for transmission detection data transmission module and for plans as a whole control main control module；The output end of the signal generating module and the output end of acquisition module are all connected to the input terminal of detection module, and the output end of the detection module is connected to main control module, and the main control module is attached by transmission module and external electric power terminal.Compared to traditional technology, the utility model designs advantages of simple, is conducive to the accuracy rate for improving high-low pressure metering cabinet wiring detection, and staff is facilitated to recognize wiring detection information in time, is conducive to promote its working efficiency.
Description
Technical field
The utility model relates to power grids to manage field, especially a kind of high-low pressure metering cabinet wiring testing device.
Background technique
Electrical energy measurement is the important link of electric power netting safe running and electric power enterprise operation management, the management of electric energy metering device
Horizontal and technical level is related to the reliable, quasi- of the vivid development and electric energy trade settlement with electric system of electric power enterprise
Really, fairness and justice, and the false wiring of electric energy metering device will have a direct impact on the accuracy of electrical energy measurement, it is therefore necessary to it carries out
The wiring of electric energy metering device detects, and verifies electric energy metering device, in time to ensure electric energy metering device stable operation.
Wherein, high-low pressure metering cabinet is common electric energy metering device, is had many advantages, such as stable, applied widely.At present
Detection for high-low pressure metering cabinet is usually that the signal that will test acquisition and the signal of standard directly compare, with the two it
Between whether there is larger difference to judge wiring issue, but the comparison of difference be it is unconspicuous, may be by signal frequency, amplitude
Deng influence, therefore the result accuracy rate detected in this way is not high.
Utility model content
To solve the above-mentioned problems, the purpose of the utility model is to provide a kind of high-low pressure metering cabinet wiring testing device,
Wiring judgement is carried out by the way that standard signal and detection signal are synthesized lissajouf figure, is conducive to the standard for improving wiring detection
True rate.
In order to make up for the deficiencies of the prior art, the technical solution adopted in the utility model is:
A kind of high-low pressure metering cabinet wiring testing device, including main body, the main body include for generating standard signal
Signal generating module detects the acquisition module of signal, for carrying out standard signal and inspection for obtaining from high-low pressure metering cabinet
The Lissajous-like pattern picture synthesis for surveying signal shows and exports the detection module of detection data, is used for transmission the transmission module of detection data
With the main control module for planning as a whole control；The output end of the signal generating module and the output end of acquisition module are all connected to inspection
Survey the input terminal of module, the output end of the detection module is connected to main control module, the main control module by transmission module with
External electric power terminal is attached.
Further, the main body further includes the alarm module for selectively sounding an alarm prompt according to detection data, institute
State the output end that alarm module is connected to detection module.
Further, the detection module includes dual channel oscilloscope；The first passage pen of the dual channel oscilloscope and
Two channels pen is connected respectively the output end of signal generating module and the output end of acquisition module, the dual channel oscilloscope
Data output end be connected to main control module.
Further, the standard signal is the sinusoidal ac signal of 1kHz.
Further, the main body further includes the signal-adjusting module for adjusting standard signal, is provided in the main body
The regulating key of connection matched with signal-adjusting module, the signal-adjusting module are connected with signal generating module.
Further, the signal generating module is function signal generator.
Further, the transmission module is wireless gsm module or local area network.
Further, the main control module is single-chip microcontroller.
The beneficial effects of the utility model are: carrying out pool control based on main control module, generated by signal generating module
Standard signal out recycles acquisition module to obtain detection signal from metering cabinet and the signal graph of the two is especially passed through inspection
It surveys module and synthesizes lissajouf figure, although it is understood that whether wiring is wrong by judging quadrant position locating for the both ends of the figure just
Accidentally, compared to traditional technology, without the difference of independent contrast standard signal and detection signal, therefore error can be reduced, accordingly
Ground is more conducive to accurate judgement；In addition, detection module can also be sent above-mentioned wiring detection information to outside by transmission module
Electric power terminal (such as power office, electric power terminal etc.), facilitate backstage personnel to recognize wiring condition in time, if it is wrong i.e.
Repairing can be arranged to rectify and improve immediately.Therefore, the utility model designs advantages of simple, is conducive to improve high-low pressure metering cabinet wiring detection
Accuracy rate, and staff is facilitated to recognize wiring detection information in time, is conducive to promote its working efficiency.
Detailed description of the invention
The utility model preferred embodiment is provided, with reference to the accompanying drawing the embodiments of the present invention are described in detail.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the circuit diagram of the current transformer in traditional technology in metering cabinet.
Specific embodiment
Referring to Fig.1, a kind of high-low pressure metering cabinet wiring testing device of the utility model, including main body, the main body packet
Include the signal generating module 6 for generating standard signal, the acquisition module for obtaining detection signal from high-low pressure metering cabinet
4, the detection module 7 for showing and exporting detection data, use are synthesized for carrying out standard signal and detecting the Lissajous-like pattern picture of signal
In transmission detection data transmission module 5 and for plans as a whole control main control module 2；The output end of the signal generating module 6
The input terminal of detection module 7 is all connected to the output end of acquisition module 4, the output end of the detection module 7 is connected to master control
Module 2, the main control module 2 are attached by transmission module 5 and external electric power terminal 8.
Specifically, the standard signal is the sinusoidal ac signal of 1kHz, and the signal generating module 6 is function signal hair
Raw device, the transmission module 5 are wireless gsm module or local area network, and the main control module 2 is single-chip microcontroller.Function signal generator
Can the function signals such as excellent output sine, cosine, certainly, it is also possible to which common signal generator replaces, and passes through setting signal
The parameter of generation equally can reach purpose；Main control module 2 can also be replaced with host computer, correspondingly, input with each module, is defeated
Connection setting out should remain unchanged.
Lissajouf figure is detected based on figure phase, and current or voltage mutual inductor is provided in metering cabinet,
It can be used for judging whether the secondary pole winding of the current or voltage mutual inductor in height metering cabinet is reversely connected with Li Shayu method, this is normal
A kind of possible situation for the wiring error seen, therefore be worth noting.
Referring to Fig. 2, winding reversal connection is illustrated: A, B and C is winding output end, and a, b and c are winding input terminal,
Under normal circumstances, a, b and c in practice, if there is winding reversal connection situation, that is, should be presented with corresponding to above-mentioned A, B and C
For the situation in Fig. 2, a ' after reversal connection according to conventional vector then all the way, in this case, to analyze, it is assumed that initial input
For 100V, then BA both end voltage UBA=2*COS30 ° of * 100V=173V, this is a kind of situation of winding reversal connection.
Pool control is carried out based on main control module 2, standard signal is produced by signal generating module 6, recycles acquisition
Module 4 obtains detection signal from metering cabinet, especially, the signal graph of the two is synthesized Li Shayu by detection module 7
Figure, although it is understood that by judging quadrant position locating for the both ends of the figure just wiring whether mistake, compared to traditional technology,
Without the difference of independent contrast standard signal and detection signal, therefore error can be reduced, correspondingly more conducively accurate judgement；Separately
Outside, detection module 7 can also be sent above-mentioned wiring detection information by transmission module 5 such as electric to external electric power terminal 8
Power office, electric power terminal etc., facilitate backstage personnel to recognize wiring condition in time, if wrong can arrange to rob finishing immediately
Change.Therefore, the utility model designs advantages of simple, is conducive to the accuracy rate for improving high-low pressure metering cabinet wiring detection, and conveniently
Staff recognizes wiring detection information in time, is conducive to promote its working efficiency.
In addition, the measurement done to metering cabinet of power office at present is all based in the case of being powered and to carry out, that is, it is directed to this
Consumer networks in region are powered to it to determine whether faulty appearance, but are again in the follow-up process actually to need again
Secondary power-off, but the time being separated by between the two (be powered and power off) is not grown generally, therefore for a user, will meet with
It is then powered off again by unexpected be powered, this is obviously unfavorable for user's normal electricity consumption, even if this kind of detection method is capable of detecting when to count
Whether amount cabinet breaks down, but can also evoke the complaint of user, and the relationship safeguard for power office and user is clearly unfavorable；
And detection device used by the present embodiment, battery only need to be filled in detection device to use, and there is no need to entire electricity
Netcom's electricity is with regard to practicable detection, it is clear that detection get up it is more convenient, adverse effect will not be caused to user.
Further, referring to Fig.1, the main body further includes the alarm for selectively sounding an alarm prompt according to detection data
Module 1, the alarm module 1 are connected to the output end of detection module 7；For the staff detected on the spot, Ke Yiqi
To live reminding effect, to prevent its carelessness；The alarm module 1 can be buzzer or status indicator lamp etc..
Further, the detection module 7 is not shown including dual channel oscilloscope；The first passage of the dual channel oscilloscope
Pen and second channel pen are connected respectively the output end of signal generating module 6 and the output end of acquisition module 4, described double
The data output end of oscilloscope channel is connected to main control module 2.The wave of two signals can be preferably shown using oscillograph
Shape, in fact, the two can be synthesized to lissajouf figure by " XY " key thereon, but on condition that the two must have phase
Same frequency can not stablize synthesis lissajouf figure if the frequency of the two is not identical, will also realize that mistake occurs in wiring in this way
Accidentally；If the two can synthesize, the lissajouf figure synthesized is ellipticity, using reference axis as referential, if its long axis at this time
Both ends are located in one, three liang of quadrant, then it represents that wiring is correct, conversely, if in two, four-quadrant, then it represents that wiring is wrong
Accidentally, if being indicator light set by alarm module 1, can judge whether wiring is correct by the variation of indicator light colors, this
It is also feasible.
Further, referring to Fig.1, the main body further includes the signal-adjusting module 3 for adjusting standard signal, the main body
On be provided with the regulating key that connection is matched with signal-adjusting module 3, the signal-adjusting module 3 and signal generating module 6
It is connected；As previously mentioned, if the frequency of standard signal and detection signal mismatches possibly Lissajous-like pattern can not be stably generated
Shape, if therefore there is such case, can use the size that regulating key carrys out adjustment criteria signal so that itself and detection signal
It can preferably be matched.
The preferred embodiment of the utility model and basic principle is discussed in detail in the above content, but the utility model is simultaneously
It is not limited to above embodiment, those skilled in the art should be recognized that in the premise without prejudice to the spirit of the present invention
Under also have various equivalent variations and replacement, these equivalent variations and replacement both fall within the scope of the claimed invention
It is interior.
Claims (8)
1. a kind of high-low pressure metering cabinet wiring testing device, including main body, which is characterized in that the main body includes for generating mark
The signal generating module (6) of calibration signal, for from high-low pressure metering cabinet obtain detection signal acquisition module (4), for into
Rower calibration signal and the Lissajous-like pattern picture synthesis for detecting signal show and export the detection module (7) of detection data, are used for transmission
The transmission module (5) of detection data and for plan as a whole control main control module (2)；The output end of the signal generating module (6)
The input terminal of detection module (7), the output end connection of the detection module (7) are all connected to the output end of acquisition module (4)
To main control module (2), the main control module (2) is attached by transmission module (5) and external electric power terminal (8).
2. a kind of high-low pressure metering cabinet wiring testing device according to claim 1, which is characterized in that the main body is also wrapped
The alarm module (1) for selectively sounding an alarm prompt according to detection data is included, the alarm module (1) is connected to detection mould
The output end of block (7).
3. a kind of high-low pressure metering cabinet wiring testing device according to claim 1, which is characterized in that the detection module
It (7) include dual channel oscilloscope；The first passage pen and second channel pen of the dual channel oscilloscope are connected respectively letter
Number the output end of module (6) and the output end of acquisition module (4) occurs, the data output end of the dual channel oscilloscope is connected to
Main control module (2).
4. a kind of high-low pressure metering cabinet wiring testing device according to claim 1, which is characterized in that the standard signal
For the sinusoidal ac signal of 1kHz.
5. a kind of high-low pressure metering cabinet wiring testing device according to claim 1 or 4, which is characterized in that the main body
Further include for adjusting the signal-adjusting module of standard signal (3), be provided in the main body with signal-adjusting module (3) institute
Regulating key with connection, the signal-adjusting module (3) are connected with signal generating module (6).
6. a kind of high-low pressure metering cabinet wiring testing device according to claim 5, which is characterized in that the signal occurs
Module (6) is function signal generator.
7. a kind of high-low pressure metering cabinet wiring testing device according to claim 1, which is characterized in that the transmission module
It (5) is wireless gsm module or local area network.
8. a kind of high-low pressure metering cabinet wiring testing device according to claim 1 to 4, which is characterized in that the master
Controlling module (2) is single-chip microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821213719.3U CN208477055U (en) | 2018-07-27 | 2018-07-27 | A kind of high-low pressure metering cabinet wiring testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821213719.3U CN208477055U (en) | 2018-07-27 | 2018-07-27 | A kind of high-low pressure metering cabinet wiring testing device |
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| CN208477055U true CN208477055U (en) | 2019-02-05 |
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| CN201821213719.3U Active CN208477055U (en) | 2018-07-27 | 2018-07-27 | A kind of high-low pressure metering cabinet wiring testing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110376477A (en) * | 2019-08-05 | 2019-10-25 | 珠海格力电器股份有限公司 | Prevent the method and device of power supply line anti-plug |
-
2018
- 2018-07-27 CN CN201821213719.3U patent/CN208477055U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110376477A (en) * | 2019-08-05 | 2019-10-25 | 珠海格力电器股份有限公司 | Prevent the method and device of power supply line anti-plug |
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