CN203396943U - Electric energy meter verification system - Google Patents
Electric energy meter verification system Download PDFInfo
- Publication number
- CN203396943U CN203396943U CN201320426129.XU CN201320426129U CN203396943U CN 203396943 U CN203396943 U CN 203396943U CN 201320426129 U CN201320426129 U CN 201320426129U CN 203396943 U CN203396943 U CN 203396943U
- Authority
- CN
- China
- Prior art keywords
- electric energy
- energy meter
- constant temperature
- standard
- temperature oven
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
Disclosed is an electric energy meter verification system for on-site verification of electric energy metes. The electric energy meter verification system comprises a thermotank, a harmonic power source, a standard electric energy meter, an error measuring device, and a data processing device. A space capable of accommodating the electric energy meters is disposed in the thermotank, and the thermotank has a temperature adjusting function; the harmonic power source is disposed in the thermotank, connected with the electric energy meters and used to output a preset load to electric energy meters; the standard electric energy meter is disposed in the thermotank, and is used to receive the preset load and generate a standard electric energy signal; the error measuring device is disposed in the thermotank, and is used to calculate an error value according to a pulse signal output from an electric energy meter to be detected and the standard electric energy signal; and the data processing device is connected with the error measuring device, and data processing device is used to calculate to obtain verification data according to the error value, send out the verification data and receive a judgment result on the electric energy meter to be detected. As can be seen from the scheme, the verification system provided by the application can verify the electric energy meters under the conditions of specialized temperature meeting verification regulations, and verification results are accurate and authoritative.
Description
Technical field
The application relates to electronic instrument Calibration Technology field, more particularly, relates to a kind of electric energy meter detecting system.
Background technology
The calibrating of electric energy meter is carried out in laboratory conventionally, and electric energy meter need to remove from electricity consumption scene, delivers to laboratory, under the test condition of vertification regulation regulation, examines and determine.Because the installation site of most of electric energy meters is far apart from laboratory, and also there is certain working routine in laboratory, so often can not examine and determine electric energy meter immediately, calibration interval are longer, and then user's electricity consumption is impacted, therefore usually adopt the method for on-site proving to examine and determine electric energy meter.
Existing on-site proving method is the electricity consumption scene of tested electric energy meter that standard electric energy meter is installed to, the voltage circuit of standard electric energy meter and tested electrical energy meter electricity hydraulic circuit are in parallel, the current return of the current return of standard electric energy meter and tested electric energy meter is in series, then by comparing both electric energy metrical readings within certain period, obtain the error of tested electric energy meter, and further judge that whether tested electric energy meter is qualified.Yet the calibrating of reometer is valid, verification result relates to the trade settlement of power supply department and power consumer, when the existing on-site proving method of application is examined and determine electric energy meter, calibrating environment does not often meet the environmental standard of vertification regulation regulation, cause the result of calibrating inaccurate, and then cause the economic dispute of power supply department and power consumer.
Utility model content
In view of this, the application provides a kind of electric energy meter detecting system, can to tested electric energy meter, examine and determine at the temperature conditions of electricity consumption in-site modeling vertification regulation regulation, thereby accurate, reliable verification result is provided.
To achieve these goals, the existing scheme proposing is as follows:
, for tested electric energy meter is carried out to on-site proving, comprising:
Inside is provided with the space that can hold described tested electric energy meter, and has the constant temperature oven of temp regulating function;
Be arranged on described constant temperature oven inner, be connected with described tested electric energy meter, for the harmonic power source to the default load of described tested electric energy meter output;
Be arranged on described constant temperature oven inner, be connected with described harmonic power source, for receiving described default load and producing the standard electric energy meter of standard electric power signal;
Be arranged on described constant temperature oven inner, be connected with described tested electric energy meter, standard electric energy meter respectively, for the error measuring means that goes out error amount according to the pulse signal of described tested electric energy meter output and described standard electric energy calculated signals;
Be connected with described error measuring means, for calculating calibrating data according to described error amount, described calibrating data sent, and receive the data processing equipment to the result of determination of described electric energy meter to be checked.
Preferably, described constant temperature oven comprises refrigerating plant and/or heating arrangement.
Preferably, described data processing equipment is sent described calibrating data and is received described result of determination by 3G network.
Preferably, described data processing equipment comprises notebook computer, panel computer or smart mobile phone.
Preferably, also comprise electric supply installation, described electric supply installation comprises:
Battery pack;
Be connected with described battery pack, for the low-voltage DC of described battery pack output being transformed to the inverter of 220 volts of 50 hertz of single-phase alternating currents.
From above-mentioned technical scheme, can find out, the disclosed electric energy meter detecting system of the application utilizes constant temperature oven to provide an environment that meets vertification regulation for tested electric energy meter, harmonic power source, standard electric energy meter and error measuring means, can avoid because calibrating environment does not meet the error that the regulation of vertification regulation causes, the verification result providing is accurate, authoritative.
In addition, the calibrating environment simulator in the disclosed electric energy meter detecting system of the application comprises constant temperature oven, conveniently moving, and testing person can be carried to easily any electricity consumption scene electric energy meter is examined and determine timely, has improved work efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiment of the application, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural drawing of the disclosed a kind of electric energy meter detecting system of the embodiment of the present application.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only the application's part embodiment, rather than whole embodiment.Embodiment based in the application, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the application's protection.
Fig. 1 is the structural drawing of the disclosed a kind of electric energy meter detecting system of the embodiment of the present application.
Electric energy meter detecting system as shown in Figure 1 comprises; Battery pack 41, inverter 40, change-over switch K, constant temperature oven 10, standard harmonic power source 12, portable computer 20.Standard harmonic power source 12 is arranged in constant temperature oven 10, and battery pack 41 and inverter 40 provide electric power by change-over switch K for constant temperature oven 10 and standard harmonic power source 12, and portable computer 20 is connected with the standard harmonic power source 12 in constant temperature oven 10.
The power consumption of constant temperature oven 10 is lower, when adopting the standard harmonic power source 12 of small volume, can select the constant temperature oven 10 of 19 liters, and power consumption is only 65 watts; When adopting the larger standard harmonic power source 12 of volume, can select the constant temperature oven of 50 liters, power consumption is only 130 watts.Constant temperature oven can be powered by the single-phase civil power 30 of 220 volts, can also be powered by the direct current of 12/24 volt.
Native system adopts two kinds of powering modes.Nearer apart from civil power 30, and connect when more convenient, select 220 volts of single-phase civil powers 30 to power, now, by change-over switch K, civil power 30 is connected with standard harmonic power source 12 with constant temperature oven 10.If far away apart from civil power 30, or in the situation of wiring inconvenience, native system adopts self-contained power supply to power, now by change-over switch K, the output terminal of inverter 40 is connected with standard harmonic power source 12 with constant temperature oven 10, the battery pack of carrying 41 or automobile storage battery are connected with the input end of inverter 40, and by inverter 40, the low-voltage DC of battery pack 41 or automobile storage battery being converted to the single-phase alternating current of 220 volts 50 hertz is that constant temperature oven 10 and standard harmonic power source 12 are powered.
The effect of standard harmonic power source 12 is that the load point such as voltage, electric current, phase place and/or frequency of vertification regulation regulation are provided to tested electric energy meter 11; The electric power signal of generation standard; Receive the pulse signal of tested electric energy meter 11, comprise the Color mark signal of mechanical power energy meter, the forward of electronic electric energy meter, reverse power pulse signal, clock pulse signal, period switching pulse signal etc.; By the pulse signal of standard of comparison electric power signal and tested table, calculate tested electric energy meter 11 at the error amount of this load point.
According to the difference of tested electric energy meter 11 types, configure dissimilar standard harmonic power source 12.When tested electric energy meter 11 is single-phase electric energy meter, configure single-phase standard harmonic power source; When tested electric energy meter 11 is three-phase electric energy meter, configuration three-phase standard harmonic power source.
The input power of single-phase standard harmonic power source is 50 hertz of 220 volts/1.5 peaces; Maximum output voltage is the highest 480 volts, 100 volt-amperes of voltage peak power outputs; Maximum output current is 120 amperes, electric current peak power output 100VA; Phase adjustment range 0～360 degree, 45～65 hertz of frequency-tuning ranges, electric energy metrical class of accuracy is 0.05 grade.The input power of three-phase standard harmonic power source is/50 hertz of 220 volts/2 peaces, and maximum output voltage is the highest 480 volts, 50 volt-amperes of voltage peak power outputs; Maximum output current is 120 amperes, electric current peak power output 50VA; Phase adjustment range 0～360 degree, 45～65 hertz of frequency-tuning ranges, electric energy metrical class of accuracy is 0.05 grade.
Before can completing, standard harmonic power source 12 by harmonic power source, standard electric energy meter and error, calculates the work that stout man's completes jointly respectively, can be to voltage, electric current, position and/or the frequency of tested electric energy meter 11 output vertification regulation regulations, and receive the electrical energy pulse that tested electric energy meter 11 sends, automatically calculate tested electric energy meter 11 at the error amount of each load point, so-called load point be vertification regulation regulation voltage, electric current, a position and/frequency.
The built-in two-way error of standard harmonic power source 12 computing system, can detect simultaneously tested electric energy meter 11 meritorious/reactive energy error.The electrical energy impulse signals of tested electric energy meter 11, the pps pulse per second signal of clock, other function pulse signal are all input in standard harmonic power source 12 by a multi-functional port.
When carrying out on-site proving, first, standard harmonic power source 12 is placed in constant temperature oven 10, constant temperature oven 10 and standard harmonic power source 12 are electrically connected to city respectively, more tested electric energy meter 11 is connected by the mode of connection of vertification regulation regulation with standard harmonic power source 12; If there do not have civil power ，Huo Yu city to be electrically connected to be inconvenient, battery pack is connected to inverter, by inverter, constant temperature oven 10 and standard harmonic power source 12 are powered.
Secondly, start constant temperature oven 10 and heat or freeze, when the temperature in constant temperature oven 10 reaches 23 ℃ ± 2 ℃ of vertification regulation regulation, startup portable computer 20.
Start working in portable computer 20 control criterion harmonic power sources 12, read the margin of error that standard harmonic power source 12 obtains, and further data are examined and determine in generation, then calibrating data are uploaded to the measuring control platform of metrological service by 3G network or internet, measuring control platform calculates and judges that whether tested electric energy meter is qualified and return to portable computer 20 afterwards.If tested electric energy meter 11 is qualified, reinstall electricity consumption scene, if defective, take back power supply department and repair or replace.
From above-mentioned technical scheme, can find out, the disclosed electric energy meter detecting system of the application utilizes constant temperature oven 10 to provide an environment that meets vertification regulation for tested electric energy meter 11 and standard harmonic power source 12, eliminated because calibrating environment does not meet the error that the regulation of vertification regulation causes, the verification result providing accurately, reliable.
In addition, the constant temperature oven in the disclosed electric energy meter detecting system of the application, volume is small and exquisite, weight is also lighter, can be moved easily, testing person can be carried to very easily any electricity consumption scene electric energy meter is examined and determine timely, has improved work efficiency.
Finally, also it should be noted that, in this article, relational terms such as the first and second grades is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply and between these entities or operation, have the relation of any this reality or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, article or the equipment that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, article or equipment.The in the situation that of more restrictions not, the key element being limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the application.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can be in the situation that do not depart from the application's spirit or scope, realization in other embodiments.Therefore, the application will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. an electric energy meter detecting system, for tested electric energy meter is carried out to on-site proving, is characterized in that, comprising:
Inside is provided with the space that can hold described tested electric energy meter, and has the constant temperature oven of temp regulating function;
Be arranged on described constant temperature oven inner, be connected with described tested electric energy meter, for the harmonic power source to the default load of described tested electric energy meter output;
Be arranged on described constant temperature oven inner, be connected with described harmonic power source, for receiving described default load and producing the standard electric energy meter of standard electric power signal;
Be arranged on described constant temperature oven inner, be connected with described tested electric energy meter, standard electric energy meter respectively, for the error measuring means that goes out error amount according to the pulse signal of described tested electric energy meter output and described standard electric energy calculated signals;
Be connected with described error measuring means, for calculating calibrating data according to described error amount, described calibrating data sent, and receive the data processing equipment to the result of determination of described electric energy meter to be checked.
2. electric energy meter detecting system as claimed in claim 1, is characterized in that, described constant temperature oven comprises refrigerating plant and/or heating arrangement.
3. electric energy meter detecting system as claimed in claim 2, is characterized in that, described data processing equipment is sent described calibrating data and received described result of determination by 3G network.
4. electric energy meter detecting system as claimed in claim 3, is characterized in that, described data processing equipment comprises notebook computer, panel computer or smart mobile phone.
5. the electric energy meter detecting system as described in claim 1,2,3 or 4, is characterized in that, also comprise electric supply installation, described electric supply installation comprises:
Battery pack;
Be connected with described battery pack, for the low-voltage DC of described battery pack output being transformed to the inverter of 220 volts of 50 hertz of single-phase alternating currents.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320426129.XU CN203396943U (en) | 2013-07-17 | 2013-07-17 | Electric energy meter verification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320426129.XU CN203396943U (en) | 2013-07-17 | 2013-07-17 | Electric energy meter verification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203396943U true CN203396943U (en) | 2014-01-15 |
Family
ID=49908465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320426129.XU Expired - Lifetime CN203396943U (en) | 2013-07-17 | 2013-07-17 | Electric energy meter verification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203396943U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389484A (en) * | 2013-07-17 | 2013-11-13 | 国家电网公司 | Electric energy meter verification system |
| CN110865218A (en) * | 2019-10-14 | 2020-03-06 | 中物合(杭州)检测科技有限公司 | Electric energy metering method |
-
2013
- 2013-07-17 CN CN201320426129.XU patent/CN203396943U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389484A (en) * | 2013-07-17 | 2013-11-13 | 国家电网公司 | Electric energy meter verification system |
| CN110865218A (en) * | 2019-10-14 | 2020-03-06 | 中物合(杭州)检测科技有限公司 | Electric energy metering method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103389484A (en) | Electric energy meter verification system | |
| JP5644774B2 (en) | Power measurement system, power measurement method, and information processing apparatus | |
| CN203673061U (en) | Onsite detecting system for electric energy meter | |
| CN103149546B (en) | The field integrated tester of a kind of portable electric energy measuring terminal | |
| CN205038334U (en) | Electric energy meter high and low temperature environment influence quantity test device | |
| CN102072999B (en) | Connection testing device of electric energy metering device and using method thereof | |
| CN106526505B (en) | Alternating current steady voltage plug non-linear belt loading capability characteristic test method and system | |
| CN102494808A (en) | Microcalorimeter, power reference system utilizing microcalorimeter and measuring method | |
| CN203396943U (en) | Electric energy meter verification system | |
| CN105607027A (en) | High-low temperature weather effect testing device for electric energy meter | |
| CN103499380A (en) | Cell weight detection system | |
| CN106443567B (en) | Real load test system of electric energy meter | |
| CN202126497U (en) | Field check gauge of error of alternating current and direct current transformer | |
| CN213181837U (en) | Portable combined charging pile field detection device | |
| CN102998568B (en) | Performance testing method and testing device of inverter circuit | |
| CN202929142U (en) | Performance testing apparatus of inverter circuit | |
| CN103175783B (en) | Surface emissivity tester | |
| CN102155999A (en) | Real-time wireless communication industrial thermal resistor temperature transmitter | |
| CN102621519A (en) | Tester for electric energy metering device | |
| CN202916436U (en) | Movable electric energy meter verification laboratory system | |
| CN201837694U (en) | Wiring tester for electric energy metering device | |
| CN206515459U (en) | A kind of actual loading test system of electric energy meter | |
| CN102982721A (en) | Experiment teaching device capable of controlling temperature feedback of oven automatically | |
| Mubarok et al. | Prototype Design of IoT (Internet of Things)-based Load Monitoring System | |
| CN204063174U (en) | A kind of photovoltaic micro-wave oven |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |