CN205720637U - 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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- CN205720637U CN205720637U CN201620577687.XU CN201620577687U CN205720637U CN 205720637 U CN205720637 U CN 205720637U CN 201620577687 U CN201620577687 U CN 201620577687U CN 205720637 U CN205720637 U CN 205720637U
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- 238000012360 testing method Methods 0.000 title claims abstract description 139
- 238000001514 detection method Methods 0.000 claims abstract description 32
- 229910052573 porcelain Inorganic materials 0.000 claims description 16
- 230000008859 change Effects 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 4
- 238000012795 verification Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000003556 assay Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
Abstract
nullThe utility model 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、One end of current wiring terminal and auxiliary terminal extend housing and respectively with the voltage terminal of test table torr、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.This utility model ensures the reliability of electric energy meter Withstand test device, simple in construction, easily realizes, has a good application prospect.
Description
Technical field
This utility model relates to a kind of check standard device for electric energy meter Withstand test device, belongs to electric energy meter and automatically examines
Constant current waterline technical field.
Background technology
The development built along with intelligent grid, domestic has built up multiple single, three-phase electric energy meter automatic calibration streamline, makes
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, is effectively increased 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 assay device detects in real time, verifies, in order to discover problems and solve them in time, is the most necessary.
At present, in electric energy meter automatic Verification streamline, the assay device of electric energy meter uses standard electric energy meter to carry out period core
Look into, it is ensured that the reliability of assay device.But, electric energy meter Withstand test device unanimously the most effectively verifies 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 the most extremely important, electricity
The leakage current test of energy table Withstand test device is inaccurate, can judge tested electric energy meter by accident, detect 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.
Utility model content
This utility model purpose is to overcome prior art electric energy meter Withstand test device cannot be carried out periodic detection
Problem.Check standard device for electric energy meter Withstand test device of the present utility model, during test, controls the pressure examination of electric energy meter
The magnitude of voltage of experiment device output test is applied on check standard device, and check standard device carries out detection to the magnitude of voltage of output and judges
The most qualified, control leakage current simultaneously and switching circuit, Adjustment Tests impedance loop are set, change dielectric strength, leakage current test
Circuit detects leakage current actual value in real time, and whether detection electric energy meter Withstand test device is in the current value action arranged, it is ensured that electricity
The reliability of energy table Withstand test device, simple in construction, easily realize, have a good application prospect.
In order to achieve the above object, this utility model be the technical scheme is that
A kind of check standard device for electric energy meter Withstand test device, it is characterised in that: include being arranged in housing
Wiring board, described wiring board include microprocessor, leakage current detection circuit, circuit for testing voltage, leakage current arrange switching circuit,
Pressure test point switching circuit, voltage wiring terminal, current wiring terminal and auxiliary terminal, described voltage wiring terminal, electric current
One end of binding post and auxiliary terminal extend housing and respectively with the voltage terminal of test table torr, current terminal and auxiliary
Helping end correspondence to connect, described test table torr is plugged on electric energy meter Withstand test device, the other end of described voltage wiring terminal
Being connected with leakage current detection circuit, circuit for testing voltage respectively, the other end of described current wiring terminal and auxiliary terminal divides
Be not connected with pressure test point switching circuit, described pressure test point switching circuit respectively with circuit for testing voltage, leakage current
Testing circuit is connected, and described leakage current detection circuit arranges switching circuit with leakage current and is connected, described leakage current test electricity
Road, leakage current arrange switching circuit and are 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 controlling eventually
End, described microprocessor is connected with controlling terminal by communication interface circuit, examination that described control terminal is also pressure 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
Relay J 1, the model of J2, J3 are 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 carries out the switching of different tests test point, described high pressure porcelain relay J 4 by high pressure porcelain relay J 4, 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 beneficial effects of the utility model are: the check standard for electric energy meter Withstand test device of the present utility model
Device, during test, the magnitude of voltage controlling the output test of electric energy meter Withstand test device is applied on check standard device, check standard device
The magnitude of voltage of output carrying out detection and judges whether qualified, control leakage current simultaneously and arrange switching circuit, Adjustment Tests loop hinders
Anti-, change dielectric strength, leakage current detection circuit detects leakage current actual value in real time, and whether detection electric energy meter Withstand test device
In the current value action arranged, it is ensured that the reliability of electric energy meter Withstand test device, simple in construction, easily realize, have good
Application prospect.
Accompanying drawing explanation
Fig. 1 is the system block diagram of the check standard device for electric energy meter Withstand test device of the present utility model.
Fig. 2 is the structural representation of a single-phase pressure each binding post of check standard device of embodiment of the present utility model.
Fig. 3 is the structural representation of an embodiment three-phase direct of the present utility model pressure check standard each binding post of device
Figure.
Fig. 4 is that the structure of an embodiment Three-phase mutual inductor type of the present utility model pressure check standard each binding post of device is shown
It is intended to.
Detailed description of the invention
Below in conjunction with Figure of description, this utility model is described further.Following example are only used for more clear
Chu's ground explanation the technical solution of the utility model, and protection domain of the present utility model can not be limited with this.
As it is shown in figure 1, the check standard device for electric energy meter Withstand test device of the present utility model, including being arranged on shell
Wiring board 2 in body 1, described wiring board 2 includes that microprocessor, leakage current detection circuit, circuit for testing voltage, leakage current are arranged
Switching circuit, pressure test point switching circuit, voltage wiring terminal, current wiring terminal and auxiliary terminal, described voltage link
One end of terminal, current wiring terminal and auxiliary terminal extend housing 1 and respectively with voltage terminal, the electricity of test table torr 3
Stream 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 link
The other end of terminal is connected with leakage current detection circuit, circuit for testing voltage respectively, described current wiring terminal and auxiliary end
Son the other end be connected with pressure test point switching circuit respectively, described pressure test point switching circuit respectively with voltage tester
Circuit, leakage current detection circuit are connected, and described leakage current detection circuit arranges switching circuit with leakage current and is connected, described leakage
Current detection circuit, leakage current arrange switching circuit and are connected with microprocessor respectively.
Described wiring board 2 also includes that keyboard, display, described keyboard, display are connected with microprocessor respectively.
This utility model also includes controlling terminal, and described microprocessor is connected with controlling terminal by communication interface circuit
Connecing, described control terminal is also connected with electric energy meter Withstand test device.
Described leakage current detection circuit is used 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 4, 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, its mesohigh porcelain relay J 4,
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 check standard device of the present utility model and the voltage terminal phase testing table torr 3
Even, current wiring terminal is connected with the current terminal of test table torr 3, auxiliary terminal and the auxiliary connection end phase testing table torr 3
Even.
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
With two kinds of three-phase pressure check standard devices.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 overall dimensions all meets " Q/GDW 1355-2013 single-phase intelligent electric energy meter pattern
Specification " requirement, 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 overall dimensions,
Wide, height all meets " Q/GDW 1356-2013 three-phase intelligent electric-energy meter pattern specification " requirement；The verification of three-phase direct access
Each binding post of standard is arranged as shown in Figure 3；The check standard device binding post that three-phase accesses through mutual inductance type is arranged such as Fig. 4
Shown in, it is possible on being 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 utility model, resistance to according to electric energy meter
Pressure test requirements document, the leakage current value detection being applied to the test voltage on tested electric energy meter and generation during test must be accurately,
Can guarantee that the correctness of test, check standard utensil of the present utility model have voltage detecting circuit, leakage current detection circuit and leakage
Electric current arranges switching circuit, automatically detects electric energy meter Withstand test device, verifies what electric energy meter Withstand test device went out
Whether magnitude of voltage and detection of electrical leakage reach requirement, and during test, the magnitude of voltage controlling the output test of electric energy meter Withstand test device is executed
Being added on check standard device, check standard device carries out detection to the magnitude of voltage of output and judges whether qualified, controls leakage current simultaneously
Arranging switching circuit, Adjustment Tests impedance loop, change dielectric strength, it is actual that leakage current detection circuit detects leakage current in real time
Value, whether detection electric energy meter Withstand test device is in the current value action arranged, it is ensured that electric energy meter Withstand test device reliable
Property, simple in construction, easily realize, have a good application prospect.
Of the present utility model ultimate principle, principal character and advantage have more than been shown and described.The technical staff of the industry
It should be appreciated that this utility model is not restricted to the described embodiments, simply illustrating originally described in above-described embodiment and description
The principle of utility model, on the premise of without departing from this utility model spirit and scope, this utility model also has various change
And improvement, in the range of these changes and improvements both fall within claimed this utility model.This utility model claims scope
Defined by appending claims and equivalent thereof.
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.
A kind of check standard device for electric energy meter Withstand test device the most according to claim 1, it is characterised in that: institute
State wiring board (2) and also include that keyboard, display, described keyboard, display are connected with microprocessor respectively.
A kind of check standard device for electric energy meter Withstand test device the most 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 be connected by table Withstand test device.
A kind of check standard device for electric energy meter Withstand test device the most 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.
A kind of check standard device for electric energy meter Withstand test device the most 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.
A kind of check standard device for electric energy meter Withstand test device the most 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。
A kind of check standard device for electric energy meter Withstand test device the most 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 it is RI-81.
A kind of check standard device for electric energy meter Withstand test device the most 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 4, 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.
A kind of check standard device for electric energy meter Withstand test device the most according to claim 8, it is characterised in that: institute
State the JPK-Z-009 that model is 24V of high pressure porcelain relay J 4, J5, J6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620577687.XU CN205720637U (en) | 2016-06-13 | 2016-06-13 | A kind of check standard device for electric energy meter Withstand test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620577687.XU CN205720637U (en) | 2016-06-13 | 2016-06-13 | A kind of check standard device for electric energy meter Withstand test device |
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| Publication Number | Publication Date |
|---|---|
| CN205720637U true CN205720637U (en) | 2016-11-23 |
Family
ID=57305750
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620577687.XU Active CN205720637U (en) | 2016-06-13 | 2016-06-13 | A kind of check standard device for electric energy meter Withstand test device |
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| CN (1) | CN205720637U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106066464A (en) * | 2016-06-13 | 2016-11-02 | 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 |
| CN111638426A (en) * | 2020-05-20 | 2020-09-08 | 国网河北省电力有限公司电力科学研究院 | Test system and method for withstand voltage test of power distribution terminal |
-
2016
- 2016-06-13 CN CN201620577687.XU patent/CN205720637U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106066464A (en) * | 2016-06-13 | 2016-11-02 | 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 |
| CN106066464B (en) * | 2016-06-13 | 2018-11-06 | 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 |
| CN111638426A (en) * | 2020-05-20 | 2020-09-08 | 国网河北省电力有限公司电力科学研究院 | Test system and method for withstand voltage test of power distribution terminal |
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