CN206832923U - A kind of measurement loop wiring error judgment means - Google Patents
A kind of measurement loop wiring error judgment means Download PDFInfo
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- CN206832923U CN206832923U CN201720709596.1U CN201720709596U CN206832923U CN 206832923 U CN206832923 U CN 206832923U CN 201720709596 U CN201720709596 U CN 201720709596U CN 206832923 U CN206832923 U CN 206832923U
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Abstract
A kind of measurement loop wiring error judgment means of disclosure, including：Detection means and recoil simulator；The detection means includes：Signal pickup assembly, secondary signal processor, second singlechip, second display and second source device；The recoil simulator includes：First single-chip microcomputer, signal generator, the first signal processor, sender unit, the first supply unit and the first display；The signal generator includes：Signal generating circuit；First signal processor includes：First signal amplification circuit；The secondary signal processor includes：Filter circuit, rectification circuit and secondary signal amplifying circuit；The sender unit includes：Current signal transmitter and voltage signal transmitter；The signal pickup assembly includes：Current signal collector and voltage signal collector.The application can effectively solve the ineffective problem of existing detection means.
Description
Technical field
The application is related to technical field of electrical measurement, more particularly to a kind of measurement loop wiring error judgment means.
Background technology
Electric energy measuring equipment includes metering voltage, current transformer and its secondary circuit, electric energy metering cabinet etc., for
Hair in power generation, between, three departments, amount of electrical power is calculated measuring, during electric energy measuring equipment correct wiring
Ensure the necessary condition of accurate measurement, electric energy measuring equipment must carry out wiring check before operation.
Before not come into operation for new clothes electric energy measuring equipment, due to can not directly carry out charging operation, so can not be according to
Field apparatus is ask to differentiate the wiring correctness of new clothes electric energy measuring equipment.Generally use manually uses the on-off function of universal meter
The wiring correctness of new clothes electric energy measuring equipment is judged, it is necessary to disconnect secondary circuit and electricity during wiring correctness is verified
The coupling part of pressure/current transformer.Disconnecting wire causes physical state at conductor compression jointing to change, because site environment is mixed and disorderly,
Easily there is wire virtual connection, miss or touch adjacent conductor position, produce the problems such as short-circuit, breaking.
Diverse location residing for electric energy measuring equipment, different practical problems be present.Set for the electric energy metrical in plant stand side
It is standby, because secondary circuit distance is longer, several staff are needed when checking wiring correctness, and need to connect to form loop
Ground wire, but can only be linked up between plant stand and controllers by telecommunication, easily go wrong, cause to check and lose
Lose；For the electric energy measuring equipment in customer side, because the design of electric energy metering cabinet is universal very narrow and small, to work on the spot people
The activity of member causes many restrictions, and batch meter is typically mounted on stand eminence, adds the work that staff disconnects wire
Industry difficulty.
Utility model content
The application provides a kind of measurement loop wiring error judgment means, ineffective to solve existing detection means
Problem.
According to embodiments herein, there is provided a kind of measurement loop wiring error judgment means, including：Detection means and letter
Number device；
The detection means includes：Signal pickup assembly, secondary signal processor, second singlechip, second display and
Second source device；
The recoil simulator includes：First single-chip microcomputer, signal generator, the first signal processor, sender unit,
One supply unit and the first display；
First single-chip microcomputer connects with first supply unit, the first display of institute and the signal generator respectively
Connect；
The signal output part of the signal generator is connected with one end of first signal processor；
The other end of first signal processor is connected with the sender unit；
The second singlechip is handled with the second source device, the second display and the secondary signal respectively
Device connects；
The signal input part of the secondary signal processor is connected with the signal pickup assembly；
The signal generator includes：Signal generating circuit；
First signal processor includes：First signal amplification circuit；
The secondary signal processor includes：Filter circuit, rectification circuit and secondary signal amplifying circuit；
The sender unit includes：Current signal transmitter and voltage signal transmitter；
The signal pickup assembly includes：Current signal collector and voltage signal collector.
Alternatively, described device also includes：First keyboard and the second keyboard；
First keyboard is connected with first single-chip microcomputer；
Second keyboard is connected with the second singlechip.
Alternatively, the current signal transmitter and the voltage signal transmitter use wire clamp；
The current signal collector uses pincerlike inductor；
The voltage signal collector uses probe.
Alternatively, the current output signal of the signal generating circuit is less than 0.5A, and voltage output signal is less than 10V.
Alternatively, first supply unit and the second source device use dry cell or rechargeable battery.
Alternatively, first display and the second display use liquid crystal display.
From above technology, the application provides a kind of measurement loop wiring error judgment means, including：Detection means and
Recoil simulator；The detection means includes：Signal pickup assembly, secondary signal processor, second singlechip, second display and
Second source device；The recoil simulator includes：First single-chip microcomputer, signal generator, the first signal processor, signal transmitting dress
Put, the first supply unit and the first display；First single-chip microcomputer respectively with first supply unit, the first display
Connected with the signal generator；One end of the signal output part of the signal generator and first signal processor connects
Connect；The other end of first signal processor is connected with the sender unit；The second singlechip respectively with it is described
Second source device, the second display connect with the secondary signal processor；The signal of the secondary signal processor
Input is connected with the signal pickup assembly；The signal generator includes：Signal generating circuit；First signal transacting
Device includes：First signal amplification circuit；The secondary signal processor includes：Filter circuit, rectification circuit and secondary signal are put
Big circuit；The sender unit includes：Current signal transmitter and voltage signal transmitter；The signal pickup assembly bag
Include：Current signal collector and voltage signal collector.
In use, the current signal transmitter in sender unit is connected to each phase secondary side of threephase current transformer
On outlet terminal, voltage signal transmitter is connected on each phase secondary side outlet terminal of threephase potential transformer.Connect first
Supply unit, the signal generator is controlled to send voltage/current test signal by the first single-chip microcomputer, through the first signal processor
Processing is amplified, and does constant pressure or constant current output, is passed by the current signal transmitter and the voltage signal transmitter
Each phase secondary side of three-phase current/voltage transformer is handed to, and shows the waveform of the test signal on the first display.Will
Current signal collector and voltage signal collector in signal pickup assembly are connected to electric energy table side, for gathering by be measured
The test signal in loop.Second source device is connected, controls secondary signal processor to collect by second singlechip
The test signal is amplified processing, and the test signal is filtered and shown with after rectification by second display
Waveform.It will be contrasted, comparison process simple and fast, can be obtained quickly by the test signal waveform before and after loop to be measured
Go out conclusion.Detection process need not disconnect wire, can effectively solve the problem that the ineffective problem of existing detection means.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the application, letter will be made to the required accompanying drawing used in embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation for measurement loop wiring error judgment means that the embodiment of the present application provides；
Fig. 2 is a kind of internal structure schematic diagram for measurement loop wiring error judgment means that the embodiment of the present application provides；
Fig. 3 is a kind of internal structure schematic diagram for signal generator that the embodiment of the present application provides；
Fig. 4 is a kind of internal structure schematic diagram for first signal processor that the embodiment of the present application provides；
Fig. 5 is a kind of internal structure schematic diagram for secondary signal processor that the embodiment of the present application provides；
Fig. 6 is a kind of work wiring schematic diagram for measurement loop wiring error judgment means that the embodiment of the present application provides；
Fig. 7 is a kind of schematic diagram for judgement wiring correctness that the embodiment of the present application provides.
Illustrate：
Wherein：1- detection means, 2- recoil simulators, the single-chip microcomputers of 3- first, 4- signal generators, 41- signal generating circuits,
The signal processors of 5- first, the signal amplification circuits of 51- first, 6- sender units, 61- current signal transmitters, 62- voltages
Signal projector, 7- loops to be measured, 8- signal pickup assemblies, 81- voltage signal collectors, 82- current signal collectors, 9-
Binary signal processor, 91- filter circuits, 92- rectification circuits, 93- secondary signal amplifying circuits, 10- second singlechips, 11-
One supply unit, the keyboards of 12- first, the displays of 13- first, 14- second displays, 15- second source devices, the keys of 16- second
Disk, 17- electric energy meters.
Embodiment
Referring to Fig. 1, a kind of structural representation of measurement loop wiring error judgment means；Referring to Fig. 2, a kind of measurement loop
The internal structure schematic diagram of wiring error judgment means.
The present embodiment provides one kind, including：Detection means 1 and recoil simulator 2；
The detection means 1 includes：Signal pickup assembly 8, secondary signal processor 9, second singlechip 10, second are shown
Device 14 and second source device 15；
The recoil simulator 2 includes：First single-chip microcomputer 3, signal generator 4, the first signal processor 5, signal transmitting dress
Put the 6, first supply unit 11 and the first display 13；
First single-chip microcomputer 3 occurs with first supply unit 11, the first display 13 of institute and the signal respectively
Device 4 connects；
The signal output part of the signal generator 4 is connected with one end of first signal processor 5；
The other end of first signal processor 5 is connected with the sender unit 6；
The second singlechip 10 is believed with the second source device 15, the second display 14 and described second respectively
Number processor 9 connects；
The signal input part of the secondary signal processor 9 is connected with the signal pickup assembly 8；
The signal generator 4 includes：Signal generating circuit 41；
First signal processor 5 includes：First signal amplification circuit 51；
The secondary signal processor 9 includes：Filter circuit 91, rectification circuit 92 and secondary signal amplifying circuit 93；
The sender unit 6 includes：Current signal transmitter 61 and voltage signal transmitter 62；
The signal pickup assembly 8 includes：Current signal collector 82 and voltage signal collector 81.
From above-described embodiment as can be seen that in use, as shown in figure 5, the current signal in sender unit 6 is launched
Device 61 is connected on each phase secondary side outlet terminal of threephase current transformer, and voltage signal transmitter 62 is connected into three-phase voltage
On each phase secondary side outlet terminal of transformer.The first supply unit 11 is connected, as shown in figure 3, being controlled by the first single-chip microcomputer 3 described
Signal generating circuit 41 in signal generator 4, sends voltage/current test signal, as shown in figure 5, through the first signal transacting
Signal amplification circuit 51 in device 5 is amplified processing, and does constant pressure or constant current output, by the current signal transmitter 61
And the voltage signal transmitter 62 is transferred to each phase secondary side of three-phase current/voltage transformer, and in the first display 13
The waveform of the upper display test signal.By the current signal collector 82 and voltage signal collector in signal pickup assembly 8
81 are connected to electric energy table side, for gathering the test signal by loop 7 to be measured.Second source device 15 is connected, such as Fig. 4
It is shown, control secondary signal processor 9 to amplify the test signal collected by secondary signal by second singlechip 10
Circuit 93, is amplified processing, and by the filtered circuit 91 of the test signal and rectification circuit 92, be filtered with rectification it
Waveform is shown by second display 14 afterwards.It will be contrasted, contrasted by the test signal waveform before and after loop 7 to be measured
Process simple and fast, it can draw a conclusion quickly.Detection process need not disconnect wire, can effectively solve the problem that existing detection means
Ineffective problem.
Such as：As shown in fig. 7, the voltage/current signals that A, B, C three-phase voltage/current transformer respectively mutually input are right respectively
Should be in 1 sine wave, 2 sine waves, 3 sine waves, start-phase is 0.If by each phase after the loop 7 to be measured
The start-phase of the signal of output is also 0, then illustrates that polarity is consistent；If in the consistent signal of polarity, ripple number also corresponds to
It is equal, then illustrate that wiring is correct, otherwise wiring error.
Alternatively, described device also includes：First keyboard 12 and the second keyboard 16；
First keyboard 12 is connected with first single-chip microcomputer 3；
Second keyboard 16 is connected with the second singlechip 10.
By setting specific key combination on keyboard, a kind of measurement loop wiring error judgment means are sent out
The operation of cloth instruction, first keyboard 12 and second keyboard 16 can use physical button, can also use and virtually press
Key.The control to the detection means in real time is realized, it is convenient and swift, detection efficiency can be effectively improved.
Alternatively, the current signal transmitter 61 and the voltage signal transmitter 62 use wire clamp；
The current signal collector 82 uses pincerlike inductor；
The voltage signal collector 81 uses probe.
In engineering, the primary current in electric field is generally tens or even hundreds of Europe, and pincerlike inductor is mutual by electric current
Larger primary current is converted to less secondary current by sensor, then carries out reading.Pincerlike inductor can produce a variety of
Range, to adapt to the needs that different primary currents measures, and it can be used continuously for a long time, it is simple to operate and safe.Institute
To use pincerlike inductor as the current signal collector 82.
The voltage signal collector 81 uses probe, in use, voltage signal enters loop 7 to be measured, is treated described in measurement
Survey time 7 response to voltage signal of road：Then voltage signal is reached by probe from signal generator 4 to tat probe and treats the survey time
Solder joint in road 7, finally reads testing result.Probe can eliminate stray voltage, and order measurement is more accurate and simple to operate, knot
Fruit understands, can effectively improve detection efficiency.
Alternatively, the current output signal of the signal generating circuit 41 is less than 0.5A, and voltage output signal is less than 10V.
Current output signal and voltage output signal are strict controlled in below pre-set limits value, can effectively avoid signal
The crisis person and the induced electricity of equipment are produced in voltage/current transformer primary side, detection work safety is effectively ensured and carries out.
Alternatively, first supply unit 11 and the second source device 15 use dry cell or rechargeable battery.
Using two kinds of power supply modes, it can effectively meet the power demands of the detection means in different environments.Such as：
If there is the position of power supply indoors, rechargeable battery can be used, there is provided continued power pattern；If in outdoor without charging electricity
The position in source, dry cell can be used, ensure power demands.
Alternatively, first display 13 and the second display 14 use liquid crystal display.
The waveform of test signal is clearly shown by liquid crystal display, so as to provide basis for comparative analysis, is as a result shown
Mode is more directly perceived, readily appreciates and operates, and can effectively improve detection efficiency.
From above technical scheme, this application provides one kind, including：Detection means 1 and recoil simulator 2；
The detection means 1 includes：Signal pickup assembly 8, secondary signal processor 9, second singlechip 10, second are shown
Device 14 and second source device 15；
The recoil simulator 2 includes：First single-chip microcomputer 3, signal generator 4, the first signal processor 5, signal transmitting dress
Put the 6, first supply unit 11 and the first display 13；
First single-chip microcomputer 3 occurs with first supply unit 11, the first display 13 of institute and the signal respectively
Device 4 connects；
The signal output part of the signal generator 4 is connected with one end of first signal processor 5；
The other end of first signal processor 5 is connected with the sender unit 6；
The second singlechip 10 is believed with the second source device 15, the second display 14 and described second respectively
Number processor 9 connects；
The signal input part of the secondary signal processor 9 is connected with the signal pickup assembly 8；
The signal generator 4 includes：Signal generating circuit 41；
First signal processor 5 includes：First signal amplification circuit 51；
The secondary signal processor 9 includes：Filter circuit 91, rectification circuit 92 and secondary signal amplifying circuit 93；
The sender unit 6 includes：Current signal transmitter 61 and voltage signal transmitter 62；
The signal pickup assembly 8 includes：Current signal collector 82 and voltage signal collector 81.
In use, the current signal transmitter 61 in sender unit 6 is connected to each phase two of threephase current transformer
On secondary side outlet terminal, voltage signal transmitter 62 is connected on each phase secondary side outlet terminal of threephase potential transformer.Connect
Logical first supply unit 11, controls the signal generator 4 to send voltage/current test signal, through first by the first single-chip microcomputer 3
Signal processor 5 is amplified processing, and does constant pressure or constant current output, by the current signal transmitter 61 and the voltage
Signal projector 62 is transferred to each phase secondary side of three-phase current/voltage transformer, and on first display 13 described in display
The waveform of test signal.Current signal collector 82 in signal pickup assembly 8 and voltage signal collector 81 are connected to electricity
Energy table side, for gathering the test signal by loop to be measured.Second source device 15 is connected, is controlled by second singlechip 10
The test signal collected is amplified processing by secondary signal processor 9 processed, and the test signal is filtered
Waveform is shown by second display 14 with after rectification.It will be carried out pair by the test signal waveform before and after loop to be measured
Than that comparison process simple and fast, can draw a conclusion quickly.Detection process need not disconnect wire, can effectively solve the problem that existing
The ineffective problem of detection means.
It should be appreciated that the precision architecture that the application is not limited to be described above and is shown in the drawings, and
And various modifications and changes can be being carried out without departing from the scope.Scope of the present application is only limited by appended claim.
Claims (6)
- A kind of 1. measurement loop wiring error judgment means, it is characterised in that including：Detection means (1) and recoil simulator (2)；The detection means (1) includes：Signal pickup assembly (8), secondary signal processor (9), second singlechip (10), second Display (14) and second source device (15)；The recoil simulator (2) includes：First single-chip microcomputer (3), signal generator (4), the first signal processor (5), signal hair Injection device (6), the first supply unit (11) and the first display (13)；First single-chip microcomputer (3) is sent out with first supply unit (11), the first display of institute (13) and the signal respectively Raw device (4) connection；The signal output part of the signal generator (4) is connected with one end of first signal processor (5)；The other end of first signal processor (5) is connected with the sender unit (6)；The second singlechip (10) respectively with the second source device (15), the second display (14) and described second Signal processor (9) connects；The signal input part of the secondary signal processor (9) is connected with the signal pickup assembly (8)；The signal generator (4) includes：Signal generating circuit (41)；First signal processor (5) includes：First signal amplification circuit (51)；The secondary signal processor (9) includes：Filter circuit (91), rectification circuit (92) and secondary signal amplifying circuit (93)；The sender unit (6) includes：Current signal transmitter (61) and voltage signal transmitter (62)；The signal pickup assembly (8) includes：Current signal collector (82) and voltage signal collector (81).
- 2. a kind of measurement loop wiring error judgment means according to claim 1, it is characterised in that described device is also wrapped Include：First keyboard (12) and the second keyboard (16)；First keyboard (12) is connected with first single-chip microcomputer (3)；Second keyboard (16) is connected with the second singlechip (10).
- A kind of 3. measurement loop wiring error judgment means according to claim 1, it is characterised in that the current signal Transmitter (61) and the voltage signal transmitter (62) use wire clamp；The current signal collector (82) uses pincerlike inductor；The voltage signal collector (81) uses probe.
- 4. a kind of measurement loop wiring error judgment means according to claim 1, it is characterised in that the signal occurs The current output signal of circuit (41) is less than 0.5A, and voltage output signal is less than 10V.
- A kind of 5. measurement loop wiring error judgment means according to claim 1, it is characterised in that first power supply Device (11) and the second source device (15) use dry cell or rechargeable battery.
- A kind of 6. measurement loop wiring error judgment means according to claim 1, it is characterised in that first display Device (13) and the second display (14) use liquid crystal display.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720709596.1U CN206832923U (en) | 2017-06-19 | 2017-06-19 | A kind of measurement loop wiring error judgment means |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720709596.1U CN206832923U (en) | 2017-06-19 | 2017-06-19 | A kind of measurement loop wiring error judgment means |
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| CN206832923U true CN206832923U (en) | 2018-01-02 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535584A (en) * | 2018-04-12 | 2018-09-14 | 天津港设施管理服务公司 | Distribution box wireline inspection equipment |
| CN108710054A (en) * | 2018-05-25 | 2018-10-26 | 云南电网有限责任公司曲靖供电局 | Wiring state detection device, method and the secondary circuit system of secondary circuit |
| CN109375031A (en) * | 2018-09-07 | 2019-02-22 | 中南大学 | A kind of three-phase transformer link set automatic checkout system |
| CN109782212A (en) * | 2018-12-29 | 2019-05-21 | 国网山东省电力公司聊城供电公司 | Bilateral separate type metering secondary wiring check device and its core line method |
| CN111413645A (en) * | 2019-01-05 | 2020-07-14 | 杭州普安科技有限公司 | Intelligent alignment instrument for metering secondary circuit |
-
2017
- 2017-06-19 CN CN201720709596.1U patent/CN206832923U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535584A (en) * | 2018-04-12 | 2018-09-14 | 天津港设施管理服务公司 | Distribution box wireline inspection equipment |
| CN108710054A (en) * | 2018-05-25 | 2018-10-26 | 云南电网有限责任公司曲靖供电局 | Wiring state detection device, method and the secondary circuit system of secondary circuit |
| CN109375031A (en) * | 2018-09-07 | 2019-02-22 | 中南大学 | A kind of three-phase transformer link set automatic checkout system |
| CN109782212A (en) * | 2018-12-29 | 2019-05-21 | 国网山东省电力公司聊城供电公司 | Bilateral separate type metering secondary wiring check device and its core line method |
| CN111413645A (en) * | 2019-01-05 | 2020-07-14 | 杭州普安科技有限公司 | Intelligent alignment instrument for metering secondary circuit |
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