CN106066464A - 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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- CN106066464A CN106066464A CN201610421703.0A CN201610421703A CN106066464A CN 106066464 A CN106066464 A CN 106066464A CN 201610421703 A CN201610421703 A CN 201610421703A CN 106066464 A CN106066464 A CN 106066464A
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- electric energy
- energy meter
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- leakage current
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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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- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
nullThe invention discloses a kind of check standard device for electric energy meter Withstand test device，Wiring board includes microprocessor、Leakage current detection circuit、Circuit for testing voltage、Leakage current arranges switching circuit、Pressure test point switching circuit、Voltage wiring terminal、Current wiring terminal and auxiliary terminal，Voltage wiring terminal、Housing the voltage terminal with test table torr respectively are extended in one end of current wiring terminal and auxiliary terminal、Current terminal is corresponding with auxiliary end to be connected，The other end of voltage wiring terminal respectively with leakage current detection circuit、Circuit for testing voltage is connected，Current wiring terminal is connected with pressure test point switching circuit respectively with the other end of auxiliary terminal，Pressure test point switching circuit respectively with circuit for testing voltage、Leakage current detection circuit is connected，Leakage current detection circuit arranges switching circuit with leakage current and is connected.The present invention ensures the reliability of electric energy meter Withstand test device, simple in construction, easily realizes, has a good application prospect.
Description
Technical field
The present invention relates to a kind of check standard device for electric energy meter Withstand test device, belong to electric energy meter automatic Verification stream
Waterline technical field.
Background technology
With the development that intelligent grid is built, domestic build up multiple single, three-phase electric energy meter automatic calibration streamline, made
The calibrating obtaining electric energy meter is no longer traditional manual operation, it is achieved that the high-volume of electric energy meter, full-automatic calibrating operation, eliminates
The calibrating mass discrepancy that artificial and region factor causes, effectively increases calibrating and dispensing work quality efficiency and management through quantification water
Flat.
Present electric energy meter automatic Verification streamline test prosthetic intervention, goes wrong and cannot find in time, once examine
Determine device to go wrong or fault, then can cause false retrieval or the flase drop of a large amount of electric energy meter.Therefore, to electric energy meter automatic Verification flowing water
Line calibrating installation detects in real time, verifies, in order to discover problems and solve them in time, is very necessary.
At present, in electric energy meter automatic Verification streamline, the calibrating installation of electric energy meter uses standard electric energy meter to carry out period core
Look into, it is ensured that the reliability of calibrating installation.But, electric energy meter Withstand test device is consistent does not effectively verify means.If
Electric energy meter Withstand test device occurs that the test voltage of output does not reaches requirement, too high or too low, too high can damage tested electric energy
Table, too low does not reaches proof strength, there is potential safety hazard.And, the leakage current test in process of the test is also extremely important, electricity
The leakage current test of energy table Withstand test device is inaccurate, can judge tested electric energy meter by accident, detects erroneous judgement bigger than normal defective, detection
Erroneous judgement less than normal is qualified, so wanting periodically to detect electric energy meter Withstand test device, to ensure its reliability, is also very
Necessary.
Content of the invention
The invention aims to overcome prior art cannot carry out periodic detection to electric energy meter Withstand test device to ask
Topic.The check standard device for electric energy meter Withstand test device of the present invention, during test, control electric energy meter Withstand test device is defeated
The magnitude of voltage going out test is applied on check standard device, and the magnitude of voltage to output for the check standard device carries out detection and judges whether to close
Lattice, control leakage current simultaneously and arrange switching circuit, Adjustment Tests impedance loop, change dielectric strength, and leakage current detection circuit is real
When detection leakage current actual value, whether detection electric energy meter Withstand test device in the current value action arranging, it is ensured that electric energy meter is resistance to
The reliability of compression testing device, simple in construction, easily realize, have 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 the circuit being arranged in housing
Plate, described wiring board includes that microprocessor, leakage current detection circuit, circuit for testing voltage, leakage current arrange switching circuit, pressure
Testing site switching circuit, voltage wiring terminal, current wiring terminal and auxiliary terminal, described voltage wiring terminal, electric current wiring
One end of terminal and auxiliary terminal extend housing and respectively with the voltage terminal of test table torr, current terminal and auxiliary end
Corresponding connection, described test table torr is plugged on electric energy meter Withstand test device, and the other end of described voltage wiring terminal is respectively
Be connected with leakage current detection circuit, circuit for testing voltage, the other end of described current wiring terminal and auxiliary terminal respectively with
Pressure test point switching circuit is connected, described pressure test point switching circuit respectively with circuit for testing voltage, leakage current test
Circuit is connected, and described leakage current detection circuit arranges switching circuit with leakage current and is connected, described leakage current detection circuit, leakage
Electric current arranges switching circuit and is connected with microprocessor respectively.
Aforesaid a kind of check standard device for electric energy meter Withstand test device, it is characterised in that: described wiring board is also
Including keyboard, display, described keyboard, display are connected with microprocessor respectively.
Aforesaid a kind of check standard device for electric energy meter Withstand test device, it is characterised in that: also include control eventually
End, described microprocessor is connected with control terminal by communication interface circuit, the described control terminal also pressure examination with electric energy meter
Experiment device is connected.
Aforesaid a kind of check standard device for electric energy meter Withstand test device, it is characterised in that: described leakage current is examined
Slowdown monitoring circuit is for detecting the current value in wiring board test loop, and its testing current scope 0-50mA, precision is 0.1 grade.
Aforesaid a kind of check standard device for electric energy meter Withstand test device, it is characterised in that: described voltage tester
Circuit is for detecting the pressure test magnitude of voltage of electric energy meter Withstand test device, and its voltage tester scope 0-6000V, precision is
0.1 grade.
Aforesaid a kind of check standard device for electric energy meter Withstand test device, it is characterised in that: described leakage current sets
Put switching circuit and adjusted the impedance of wiring board test loop by high pressure dry-reed relay J1, J2, J3, change the electricity of test loop
Stream size, each high pressure dry-reed relay J1, J2, J3 are in series with dry high-voltage precise resistance R1, R2, R3 respectively.
Aforesaid a kind of check standard device for electric energy meter Withstand test device, it is characterised in that: described height press dry spring
The model of relay J the 1st, J2, J3 is RL-101-100PCV, and the model of described dry high-voltage precise resistance R1, R2, R3 is RI-81.
Aforesaid a kind of check standard device for electric energy meter Withstand test device, it is characterised in that: described pressure test
Point switching circuit is carried out the switching of different tests test point, described high pressure porcelain relay J 4 by high pressure porcelain relay J the 4th, J5, J6
Being connected with current wiring terminal, described high pressure porcelain relay J 5 is connected with auxiliary terminal block, described high pressure porcelain relay
J6 is connected with the shell of electric energy meter Withstand test device.
Aforesaid a kind of check standard device for electric energy meter Withstand test device, it is characterised in that: described high pressure porcelain continues
The model of electrical equipment J4, J5, J6 is the JPK-Z-009 of 24V.
The invention has the beneficial effects as follows: the check standard device for electric energy meter Withstand test device of the present invention, during test,
The magnitude of voltage of control electric energy meter Withstand test device output test is applied on check standard device, the electricity to output for the check standard device
Pressure value carries out detection and judges whether qualified, controls leakage current simultaneously and arranges switching circuit, and Adjustment Tests impedance loop changes insulation
Intensity, leakage current detection circuit detects leakage current actual value in real time, and whether detection electric energy meter Withstand test device is at the electricity arranging
Flow valuve action, it is ensured that the reliability of electric energy meter Withstand test device, simple in construction, easily realizes, has a good application prospect.
Brief description
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 representation of each binding post of the single-phase pressure check standard device of one embodiment of the invention.
Fig. 3 is the structural representation of each binding post of one embodiment of the invention three-phase direct pressure check standard device.
Fig. 4 is the structural representation of each binding post of one embodiment of the invention Three-phase mutual inductor type pressure check standard device
Figure.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention will be further described.Following example are only used for clearly
Technical scheme is described, and can not limit the scope of the invention with this.
As it is shown in figure 1, the check standard device for electric energy meter Withstand test device of the present invention, including be arranged on housing 1
Interior wiring board 2, described wiring board 2 includes that microprocessor, leakage current detection circuit, circuit for testing voltage, leakage current are arranged and cuts
Change circuit, pressure test point switching circuit, voltage wiring terminal, current wiring terminal and auxiliary terminal, described voltage terminal
Son, one end of current wiring terminal and auxiliary terminal extend housing 1 voltage terminal, the electric current with test table torr 3 respectively
Terminals are corresponding with auxiliary end to be connected, and described test table torr 3 is plugged on electric energy meter Withstand test device, described voltage terminal
The other end of son is connected with leakage current detection circuit, circuit for testing voltage respectively, described current wiring terminal and auxiliary terminal
The other end be connected with pressure test point switching circuit respectively, described pressure test point switching circuit respectively with voltage tester electricity
Road, leakage current detection circuit are connected, and described leakage current detection circuit arranges switching circuit with leakage current and is connected, described electric leakage
Current detection circuit, leakage current arrange switching circuit and are connected with microprocessor respectively.
Described wiring board 2 also includes keyboard, display, and described keyboard, display are connected with microprocessor respectively.
Present invention additionally comprises control terminal, described microprocessor is connected with control terminal by communication interface circuit, institute
State control terminal to be also connected with electric energy meter Withstand test device.
Described leakage current detection circuit is for detecting the current value in wiring board 2 test loop, its testing current scope
0-50mA, precision is 0.1 grade.
Described circuit for testing voltage is for detecting the pressure test magnitude of voltage of electric energy meter Withstand test device, and its voltage is surveyed
Examination scope 0-6000V, precision is 0.1 grade.
Described leakage current arranges switching circuit and adjusts wiring board 2 test loop 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 of high pressure dry-reed relay J1, J2, J3 is RL-101-100PCV, dry high-voltage precise resistance R1,
The model of R2, R3 is RI-81, by microprocessor select switching high pressure dry-reed relay path, Adjustment Tests impedance loop,
Change dielectric strength.
Described pressure test point switching circuit carries out cutting of different tests test point by high pressure porcelain relay J the 4th, J5, J6
Changing, described high pressure porcelain relay J 4 is connected with current wiring terminal, described high pressure porcelain relay J 5 and auxiliary terminal block phase
Connecting, described high pressure porcelain relay J 6 is connected with the shell of electric energy meter Withstand test device, and its mesohigh porcelain relay J is the 4th,
The model of J5, J6 is the JPK-Z-009 of 24V, is selected the path of switching high pressure porcelain relay by microprocessor, carries out different examination
The switching of test pilot, the model of described microprocessor is STC89C52 single-chip microcomputer, with low cost, low in energy consumption, it is simple to batch is raw
Produce.
During test, the voltage wiring terminal of the check standard device of the present invention is connected with the voltage terminal of test table torr 3, electricity
Stream binding post is connected with the current terminal of test table torr 3, and auxiliary terminal is connected with the auxiliary connection end of test table torr 3.
Size according to single-phase intelligent electric energy meter and three-phase intelligent electric-energy meter needs to make a kind of single-phase pressure check standard device
The pressure check standard device with two kinds of three-phases.Wherein, the binding post of single-phase pressure check standard device is arranged and single-phase electric energy meter
Binding post arrangement is consistent, and the length of appearance and size all meets " Q/GDW 1355-2013 single-phase intelligent electric energy meter pattern
Specification " require, each binding post of single-phase pressure check standard device is arranged as in figure 2 it is shown, existing list can be directly installed on
In the test table torr of phase automatic calibration of electric energy meter system, it is simple to automatically disconnect line in single-phase electric energy meter automatic calibration system
With circulate；Three-phase is pressure, and check standard device is divided into direct access and transformer access type two kinds, the length of appearance and size,
Wide, height all meets " Q/GDW 1356-2013 three-phase intelligent electric-energy meter pattern specification " and requires；The verification of three-phase direct access
Each binding post of standard is arranged as shown in Figure 3；Three-phase is arranged such as Fig. 4 through the check standard device binding post that mutual inductance type accesses
Shown in, can be directly installed in the test table torr of existing three-phase electric energy meter automatic calibration system, it is simple in three-phase electricity
Table automatic calibration system can automatically disconnect line and circulate.
In sum, the check standard device for electric energy meter Withstand test device of the present invention, according to the pressure examination of electric energy meter
Test requirement, be applied to the test voltage on tested electric energy meter during test and the leakage current value detection of generation must accurately, Cai Nengbao
The correctness of confirmatory test, the check standard utensil of the present invention has voltage detecting circuit, leakage current detection circuit and leakage current to arrange
Switching circuit, detects to electric energy meter Withstand test device automatically, verify the magnitude of voltage that goes out of electric energy meter Withstand test device and
Whether detection of electrical leakage reaches requirement, and during test, the magnitude of voltage of control electric energy meter Withstand test device output test is applied to verify
On standard, check standard device to output magnitude of voltage carry out detection judge whether qualified, simultaneously control leakage current arrange switching
Circuit, Adjustment Tests impedance loop, change dielectric strength, leakage current detection circuit detects leakage current actual value, detection electricity in real time
Whether energy table Withstand test device is in the current value action arranging, it is ensured that the reliability of electric energy meter Withstand test device, structure letter
Single, easily realize, have a good application prospect.
General principle, principal character and the advantage of the present invention have more than been shown and described.The technical staff of the industry should
Understanding, the present invention is not restricted to the described embodiments, and the simply explanation present invention's described in above-described embodiment and specification is former
Reason, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes and improvements
Both fall within scope of the claimed invention.Claimed scope is by appending claims and equivalent circle thereof
Fixed.
Claims (9)
1. the check standard device for electric energy meter Withstand test device, it is characterised in that: include being arranged in housing (1)
Wiring board (2), described wiring board (2) includes that microprocessor, leakage current detection circuit, circuit for testing voltage, leakage current are arranged and cuts
Change circuit, pressure test point switching circuit, voltage wiring terminal, current wiring terminal and auxiliary terminal, described voltage terminal
Son, one end of current wiring terminal and auxiliary terminal extend housing (1) and respectively with the voltage terminal of test table torr (3),
Current terminal is corresponding with auxiliary end to be connected, and described test table torr (3) is plugged on electric energy meter Withstand test device, described voltage
The other end of binding post is connected with leakage current detection circuit, circuit for testing voltage respectively, described current wiring terminal and auxiliary
The other end helping terminal is connected with pressure test point switching circuit respectively, described pressure test point switching circuit respectively with voltage
Test circuit, leakage current detection circuit are connected, and described leakage current detection circuit arranges switching circuit with leakage current and is connected, institute
State leakage current detection circuit, leakage current arranges switching circuit and is connected with microprocessor respectively.
2. a kind of check standard device for electric energy meter Withstand test device according to claim 1, it is characterised in that: institute
Stating wiring board (2) and also including keyboard, display, described 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, described microprocessor by communication interface circuit with control terminal be connected, described control terminal also with electricity
Can table Withstand test device be 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
State leakage current detection circuit for detecting the current value in wiring board (2) test loop, its testing current scope 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
State circuit for testing voltage for detecting the pressure test magnitude of voltage of electric energy meter Withstand test device, its voltage tester scope 0-
6000V, precision is 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 leakage current and the impedance that switching circuit adjusts wiring board (2) test loop by high pressure dry-reed relay J1, J2, J3 is set, change
Become test loop size of current, each high pressure dry-reed relay J1, J2, J3 be in series with respectively dry high-voltage precise resistance R1, R2,
R3。
7. a kind of check standard device for electric energy meter Withstand test device according to claim 6, it is characterised in that: institute
The model stating high pressure dry-reed relay J1, J2, J3 is RL-101-100PCV, the type of described dry high-voltage precise resistance R1, R2, R3
Number be RI-81.
8. a kind of check standard device for electric energy meter Withstand test device according to claim 1, it is characterised in that: institute
State pressure test point switching circuit and carried out the switching of different tests test point, described high pressure by high pressure porcelain relay J the 4th, J5, J6
Porcelain relay J 4 is connected with current wiring terminal, and described high pressure porcelain relay J 5 is connected with auxiliary terminal block, described height
Pressure porcelain relay J 6 is connected with the shell of electric energy meter Withstand test device.
9. a kind of check standard device for electric energy meter Withstand test device according to claim 8, it is characterised in that: institute
The model stating high pressure porcelain relay J the 4th, J5, J6 is the JPK-Z-009 of 24V.
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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 true CN106066464A (en) | 2016-11-02 |
| CN106066464B CN106066464B (en) | 2018-11-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110888097A (en) * | 2019-11-13 | 2020-03-17 | 广州供电局有限公司 | 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 |
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2016
- 2016-06-13 CN CN201610421703.0A patent/CN106066464B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110888097A (en) * | 2019-11-13 | 2020-03-17 | 广州供电局有限公司 | Line switching method and device |
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| Publication number | Publication date |
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| CN106066464B (en) | 2018-11-06 |
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