CN106066464B - A kind of check standard device for electric energy meter Withstand test device - Google Patents
A kind of check standard device for electric energy meter Withstand test device Download PDFInfo
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- CN106066464B CN106066464B CN201610421703.0A CN201610421703A CN106066464B CN 106066464 B CN106066464 B CN 106066464B CN 201610421703 A CN201610421703 A CN 201610421703A CN 106066464 B CN106066464 B CN 106066464B
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- 238000012360 testing method Methods 0.000 title claims abstract description 135
- 238000001514 detection method Methods 0.000 claims abstract description 32
- 229910052573 porcelain Inorganic materials 0.000 claims description 16
- 230000005611 electricity Effects 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 3
- 238000012795 verification Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
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Abstract
The invention discloses a kind of check standard devices for electric energy meter Withstand test device,Wiring board includes microprocessor,Leakage current detection circuit,Circuit for testing voltage,Switching circuit is arranged in leakage current,Pressure test point switching circuit,Voltage wiring terminal,Current wiring terminal and auxiliary terminal,Voltage wiring terminal,Extend shell and the respectively voltage terminal with test table support in one end of current wiring terminal and auxiliary terminal,Current terminal and auxiliary end are correspondingly connected with,The other end of voltage wiring terminal respectively with leakage current detection circuit,Circuit for testing voltage is connected,The other end of current wiring terminal and auxiliary terminal is connected with pressure test point switching circuit respectively,Pressure test point switching circuit respectively with circuit for testing voltage,Leakage current detection circuit is connected,Leakage current detection circuit is connected with leakage current setting switching circuit.The present invention ensures the reliability of electric energy meter Withstand test device, simple in structure, easy to implement, has a good application prospect.
Description
Technical field
The present invention relates to a kind of check standard devices for electric energy meter Withstand test device, belong to electric energy meter automatic Verification stream
Waterline technical field.
Background technology
With the development of intelligent grid construction, the country has built up multiple lists, three-phase electric energy meter automatic calibration assembly line, makes
The calibrating of electric energy meter is no longer traditional manual operation, realize the high-volume of electric energy meter, full-automatic calibrating operation, elimination
Quality difference is examined and determine caused by artificial and region factor, effectively increases calibrating and dispatching work quality efficiency and management through quantification water
It is flat.
Present electric energy meter automatic Verification assembly line tests no manual intervention, and go wrong to find in time, once inspection
Determine device to go wrong or failure, it will cause the false retrieval of a large amount of electric energy meters or flase drops.Therefore, to electric energy meter automatic Verification flowing water
Line calibrating installation is measured in real time, verifies, and is very necessary to discover problems and solve them in time.
Currently, core during the calibrating installation of electric energy meter is carried out using standard electric energy meter in electric energy meter automatic Verification assembly line
It looks into, it is ensured that the reliability of calibrating installation.But electric energy meter Withstand test device does not verify means effectively unanimously.If
The test voltage that exporting occurs in electric energy meter Withstand test device does not reach requirement, too high or too low, excessively high to damage tested electric energy
Table, too low that proof strength is not achieved, there are security risks.Moreover, leakage current test during the test is also extremely important, electricity
The leakage current test of energy table Withstand test device is inaccurate, can be to tested electric energy meter erroneous judgement, and detection is bigger than normal to judge unqualified, detection by accident
Erroneous judgement less than normal is qualified, so to be periodically detected to electric energy meter Withstand test device, to ensure its reliability, and very
It is necessary.
Invention content
The invention aims to overcome the prior art that can not carry out periodic detection to electric energy meter Withstand test device to ask
Topic.When test, it is defeated to control electric energy meter Withstand test device for the check standard device for electric energy meter Withstand test device of the present invention
The voltage value for going out test is applied on check standard device, and check standard device, which is detected the voltage value of output, to be judged whether to close
Lattice, while leakage current setting switching circuit is controlled, Adjustment Tests impedance loop changes dielectric strength, and leakage current detection circuit is real
When detect leakage current actual value, whether detection electric energy meter Withstand test device acts in the current value of setting, ensures that electric energy meter is resistance to
The reliability of compression testing device, it is simple in structure, it is easy to implement, it has a good application prospect.
In order to achieve the above object, the technical solution adopted in the present invention is：
A kind of check standard device for electric energy meter Withstand test device, it is characterised in that：Include in shell
Wiring board, the wiring board include microprocessor, leakage current detection circuit, circuit for testing voltage, leakage current setting switching circuit,
Pressure test point switching circuit, voltage wiring terminal, current wiring terminal and auxiliary terminal, the voltage wiring terminal, electric current
One end of connecting terminal and auxiliary terminal extend shell and respectively with the voltage terminal of test table support, current terminal and auxiliary
End is helped to be correspondingly connected with, the test table support is plugged on electric energy meter Withstand test device, the other end of the voltage wiring terminal
It is connected respectively with leakage current detection circuit, circuit for testing voltage, the other end point of the current wiring terminal and auxiliary terminal
Be not connected with pressure test point switching circuit, the pressure test point switching circuit respectively with circuit for testing voltage, leakage current
Detection circuit is connected, and the leakage current detection circuit is connected with leakage current setting switching circuit, the leakage current test electricity
Road, leakage current setting switching circuit are connected with microprocessor respectively.
A kind of check standard device for electric energy meter Withstand test device above-mentioned, it is characterised in that：The wiring board is also
Including keyboard, display, the keyboard, display are connected with microprocessor respectively.
A kind of check standard device for electric energy meter Withstand test device above-mentioned, it is characterised in that：Further include that control is whole
End, the microprocessor are connected by communication interface circuit with control terminal, and the control terminal is also tried with electric energy meter pressure resistance
Experiment device is connected.
A kind of check standard device for electric energy meter Withstand test device above-mentioned, it is characterised in that：The leakage current inspection
Slowdown monitoring circuit is used to detect current value in circuit board test circuit, testing current range 0-50mA, precision is 0.1 grade.
A kind of check standard device for electric energy meter Withstand test device above-mentioned, it is characterised in that：The voltage tester
Circuit is used to detect the pressure test voltage value of electric energy meter Withstand test device, voltage tester scope 0-6000V, precision is
0.1 grade.
A kind of check standard device for electric energy meter Withstand test device above-mentioned, it is characterised in that：The leakage current is set
The impedance that switching circuit adjusts wiring board test loop by high pressure dry-reed relay J1, J2, J3 is set, the electricity of test loop is changed
Size is flowed, each high pressure dry-reed relay J1, J2, J3 are in series with dry high-voltage precise resistance R1, R2, R3 respectively.
A kind of check standard device for electric energy meter Withstand test device above-mentioned, it is characterised in that：The height press dry spring
The model RL-101-100PCV, the model RI-81 of described dry high-voltage precise resistance R1, R2, R3 of relay J1, J2, J3.
A kind of check standard device for electric energy meter Withstand test device above-mentioned, it is characterised in that：The pressure test
Point switching circuit carries out the switching of different tests test point, the high pressure porcelain relay J4 by high pressure porcelain relay J4, J5, J6
It is connected with current wiring terminal, the high pressure porcelain relay J5 is connected with auxiliary terminal block, the high pressure porcelain relay
J6 is connected with the shell of electric energy meter Withstand test device.
A kind of check standard device for electric energy meter Withstand test device above-mentioned, it is characterised in that：The high pressure porcelain after
The JPK-Z-009 of the model 24V of electric appliance J4, J5, J6.
The beneficial effects of the invention are as follows：The check standard device for electric energy meter Withstand test device of the present invention, when test,
The voltage value of control electric energy meter Withstand test device output test is applied on check standard device, electricity of the check standard device to output
Pressure value, which is detected, judges whether qualification, while controlling leakage current setting switching circuit, and Adjustment Tests impedance loop changes insulation
Intensity, leakage current detection circuit detect leakage current actual value in real time, detection electric energy meter Withstand test device whether setting electricity
Flow valuve acts, and ensures the reliability of electric energy meter Withstand test device, simple in structure, easy to implement, has a good application prospect.
Description of the drawings
Fig. 1 is the system block diagram of the check standard device for electric energy meter Withstand test device of the present invention.
Fig. 2 is the structural schematic diagram of each connecting terminal of the single-phase pressure-resistant check standard device of one embodiment of the invention.
Fig. 3 is the structural schematic diagram of each connecting terminal of one embodiment of the invention three-phase direct pressure resistance check standard device.
Fig. 4 is the structural representation of each connecting terminal of one embodiment of the invention Three-phase mutual inductor type pressure resistance check standard device
Figure.
Specific implementation mode
Below in conjunction with Figure of description, the present invention will be further described.Following embodiment is only used for clearly
Illustrate technical scheme of the present invention, and not intended to limit the protection scope of the present invention.
As shown in Figure 1, the check standard device for electric energy meter Withstand test device of the present invention, including it is mounted on shell 1
Interior wiring board 2, the wiring board 2 are cut including microprocessor, leakage current detection circuit, circuit for testing voltage, leakage current setting
Change circuit, pressure test point switching circuit, voltage wiring terminal, current wiring terminal and auxiliary terminal, the voltage terminal
Son, current wiring terminal and auxiliary terminal one end extend shell 1 and respectively with the voltage terminal of test table support 3, electric current
Terminals and auxiliary end are correspondingly connected with, and the test table support 3 is plugged on electric energy meter Withstand test device, the voltage terminal
The other end of son is connected with leakage current detection circuit, circuit for testing voltage respectively, the current wiring terminal and auxiliary terminal
The other end be connected respectively with pressure test point switching circuit, the pressure test point switching circuit respectively with voltage tester electricity
Road, leakage current detection circuit are connected, and the leakage current detection circuit is connected with leakage current setting switching circuit, the electric leakage
Current detection circuit, leakage current setting switching circuit are connected with microprocessor respectively.
The wiring board 2 further includes keyboard, display, and the keyboard, display are connected with microprocessor respectively.
The invention also includes control terminal, the microprocessor is connected by communication interface circuit with control terminal, institute
Control terminal is stated also to be connected with electric energy meter Withstand test device.
The leakage current detection circuit is used to detect current value in 2 test loop of wiring board, testing current range
0-50mA, precision are 0.1 grade.
The circuit for testing voltage is used to detect the pressure test voltage value of electric energy meter Withstand test device, voltage survey
Range 0-6000V is tried, precision is 0.1 grade.
The leakage current setting switching circuit adjusts 2 test loop of wiring board by high pressure dry-reed relay J1, J2, J3
Impedance, changes the size of current of test loop, and each high pressure dry-reed relay J1, J2, J3 are in series with dry high-voltage precise resistance respectively
R1, R2, R3, wherein the model RL-101-100PCV, dry high-voltage precise resistance R1 of high pressure dry-reed relay J1, J2, J3,
The model RI-81 of R2, R3, by microprocessor select switching high pressure dry-reed relay access, Adjustment Tests impedance loop,
Change dielectric strength.
The pressure test point switching circuit carries out cutting for different tests test point by high pressure porcelain relay J4, J5, J6
It changes, the high pressure porcelain relay J4 is connected with current wiring terminal, the high pressure porcelain relay J5 and auxiliary terminal block phase
Connection, the high pressure porcelain relay J6 are connected with the shell of electric energy meter Withstand test device, mesohigh porcelain relay J4,
The JPK-Z-009 of the model 24V of J5, J6 are selected the access of switching high pressure porcelain relay by microprocessor, carry out different examinations
The switching of test pilot, the model STC89C52 single chip of the microprocessor is of low cost, low in energy consumption, raw convenient for batch
Production.
When test, the voltage wiring terminal of check standard device of the invention is connected with the voltage terminal of test table support 3, electricity
Stream connecting terminal is connected with the current terminal for testing table support 3, and auxiliary terminal is connected with the auxiliary connection end of test table support 3.
A kind of single-phase pressure-resistant check standard device is made according to the size of single-phase intelligent electric energy meter and three-phase intelligent electric-energy meter needs
With two kinds of three-phase pressure resistance check standard devices.Wherein, the connecting terminal arrangement of single-phase pressure-resistant check standard device and single-phase electric energy meter
Connecting terminal arrangement is consistent, and the length of appearance and size meets《Q/GDW 1355-2013 single-phase intelligent electric energy meter patterns
Specification》It is required that each connecting terminal of single-phase pressure resistance check standard device is arranged as shown in Fig. 2, existing list can be directly installed on
In the test table support of phase automatic calibration of electric energy meter system, convenient for disconnecting line automatically in single-phase electric energy meter automatic calibration system
With circulate；Three-phase pressure resistance check standard device is divided into two kinds of direct access and mutual inductor access type, the length of appearance and size,
It is wide, high to meet《Q/GDW 1356-2013 three-phase intelligent electric-energy meter pattern specifications》It is required that；The verification of three-phase direct access
Each connecting terminal arrangement of standard is as shown in Figure 3；Check standard device the connecting terminal arrangement such as Fig. 4 that three-phase is accessed through mutual inductance type
It is shown, it can be directly installed in the test table support of existing three-phase electric energy meter automatic calibration system, convenient in three-phase electricity
Line can be disconnected automatically and is circulated in table automatic calibration system.
In conclusion the check standard device for electric energy meter Withstand test device of the present invention, is tried according to electric energy meter pressure resistance
Test requirement, the leakage current value detection that when experiment is applied to test voltage and generation on tested electric energy meter must be accurate, Cai Nengbao
The correctness of confirmatory test, check standard utensil of the invention have voltage detecting circuit, leakage current detection circuit and leakage current setting
Switching circuit is automatically detected electric energy meter Withstand test device, verify the voltage value that goes out of electric energy meter Withstand test device and
Whether detection of electrical leakage reaches requirement, and when test, the voltage value of control electric energy meter Withstand test device output test is applied to verification
On standard, check standard device, which is detected the voltage value of output, judges whether qualification, while controlling leakage current setting switching
Circuit, Adjustment Tests impedance loop change dielectric strength, and leakage current detection circuit detects leakage current actual value, detection electricity in real time
Can table Withstand test device whether acted in the current value of setting, ensure the reliability of electric energy meter Withstand test device, structure letter
It is single, it is easy to implement, it has a good application prospect.
The basic principles and main features and advantage of the present invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe the originals of the present invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (7)
1. a kind of check standard device for electric energy meter Withstand test device, it is characterised in that：Including being mounted on shell（1）Interior
Wiring board（2）, the wiring board（2）It is cut including microprocessor, leakage current detection circuit, circuit for testing voltage, leakage current setting
Change circuit, pressure test point switching circuit, voltage wiring terminal, current wiring terminal and auxiliary terminal, the voltage terminal
Extend shell in one end of son, current wiring terminal and auxiliary terminal（1）And respectively with test table support（3）Voltage terminal,
Current terminal and auxiliary end are correspondingly connected with, the test table support（3）It is plugged on electric energy meter Withstand test device, the voltage
The other end of connecting terminal is connected with leakage current detection circuit, circuit for testing voltage respectively, the current wiring terminal and auxiliary
Help the other end of terminal to be connected respectively with pressure test point switching circuit, the pressure test point switching circuit respectively with voltage
Test circuit, leakage current detection circuit are connected, and the leakage current detection circuit is connected with leakage current setting switching circuit, institute
State leakage current detection circuit, leakage current setting switching circuit is connected with microprocessor respectively, the leakage current setting switching electricity
Road adjusts wiring board by high pressure dry-reed relay J1, J2, J3（2）The impedance of test loop, the electric current for changing test loop are big
Small, each high pressure dry-reed relay J1, J2, J3 are in series with dry high-voltage precise resistance R1, R2, R3 respectively, and the pressure test point is cut
Change the switching that circuit carries out different tests test point by high pressure porcelain relay J4, J5, J6, the high pressure porcelain relay J4 and electricity
Stream connecting terminal be connected, the high pressure porcelain relay J5 is connected with auxiliary terminal block, the high pressure porcelain relay J6 and
The shell of electric energy meter Withstand test device is connected.
2. a kind of check standard device for electric energy meter Withstand test device according to claim 1, it is characterised in that：Institute
State wiring board（2）Further include keyboard, display, the keyboard, display are connected with microprocessor respectively.
3. a kind of check standard device for electric energy meter Withstand test device according to claim 1, it is characterised in that：Also
Including control terminal, the microprocessor is connected by communication interface circuit with control terminal, the control terminal also with electricity
Energy table Withstand test device is connected.
4. a kind of check standard device for electric energy meter Withstand test device according to claim 1, it is characterised in that：Institute
Leakage current detection circuit is stated for detecting wiring board（2）Current value in test loop, testing current range 0-50mA, essence
Degree is 0.1 grade.
5. a kind of check standard device for electric energy meter Withstand test device according to claim 1, it is characterised in that：Institute
Circuit for testing voltage is stated for detecting the pressure test voltage value of electric energy meter Withstand test device, voltage tester scope 0-
6000V, precision are 0.1 grade.
6. a kind of check standard device for electric energy meter Withstand test device according to claim 1, it is characterised in that：Institute
State the model RL-101-100PCV of high pressure dry-reed relay J1, J2, J3, the type of described dry high-voltage precise resistance R1, R2, R3
Number be RI-81.
7. a kind of check standard device for electric energy meter Withstand test device according to claim 1, it is characterised in that：Institute
State the JPK-Z-009 of the model 24V of high pressure porcelain relay J4, J5, J6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610421703.0A CN106066464B (en) | 2016-06-13 | 2016-06-13 | A kind of check standard device for electric energy meter Withstand test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610421703.0A CN106066464B (en) | 2016-06-13 | 2016-06-13 | A kind of check standard device for electric energy meter Withstand test device |
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| CN106066464A CN106066464A (en) | 2016-11-02 |
| CN106066464B true CN106066464B (en) | 2018-11-06 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107390161A (en) * | 2017-08-12 | 2017-11-24 | 国网江西省电力公司电力科学研究院 | One kind is applied to electric energy meter automatic assembly line pressure-resistant apparatus |
| CN110888097B (en) * | 2019-11-13 | 2022-03-18 | 广东电网有限责任公司广州供电局 | Line switching method and device |
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| CN101556324A (en) * | 2009-05-12 | 2009-10-14 | 深圳市科陆电子科技股份有限公司 | Pressure test device and method thereof for multi-epitope electric energy meter |
| CN202948129U (en) * | 2012-12-12 | 2013-05-22 | 湖南省电力公司科学研究院 | Tester for voltage withstanding test apparatus of electric energy meter |
| CN104237842A (en) * | 2014-10-10 | 2014-12-24 | 国家电网公司 | Alternating voltage test verification device for verifying automatic single-phase kilowatt-hour meter production line |
| CN105223538A (en) * | 2015-11-13 | 2016-01-06 | 国家电网公司 | For pick-up unit and the quality control method of electric energy meter automatic Verification streamline |
| CN205720637U (en) * | 2016-06-13 | 2016-11-23 | 国网江苏省电力公司电力科学研究院 | A kind of check standard device for electric energy meter Withstand test device |
-
2016
- 2016-06-13 CN CN201610421703.0A patent/CN106066464B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101556324A (en) * | 2009-05-12 | 2009-10-14 | 深圳市科陆电子科技股份有限公司 | Pressure test device and method thereof for multi-epitope electric energy meter |
| CN202948129U (en) * | 2012-12-12 | 2013-05-22 | 湖南省电力公司科学研究院 | Tester for voltage withstanding test apparatus of electric energy meter |
| CN104237842A (en) * | 2014-10-10 | 2014-12-24 | 国家电网公司 | Alternating voltage test verification device for verifying automatic single-phase kilowatt-hour meter production line |
| CN105223538A (en) * | 2015-11-13 | 2016-01-06 | 国家电网公司 | For pick-up unit and the quality control method of electric energy meter automatic Verification streamline |
| CN205720637U (en) * | 2016-06-13 | 2016-11-23 | 国网江苏省电力公司电力科学研究院 | A kind of check standard device for electric energy meter Withstand test device |
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