CN202916436U - Movable electric energy meter verification laboratory system - Google Patents
Movable electric energy meter verification laboratory system Download PDFInfo
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- CN202916436U CN202916436U CN 201220606014 CN201220606014U CN202916436U CN 202916436 U CN202916436 U CN 202916436U CN 201220606014 CN201220606014 CN 201220606014 CN 201220606014 U CN201220606014 U CN 201220606014U CN 202916436 U CN202916436 U CN 202916436U
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- electric energy
- energy meter
- power source
- calibration
- constant temperature
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Abstract
The utility model discloses a movable electric energy meter verification laboratory system, comprising a commercial power input, a standard power source, a thermotank and a mobile terminal. The standard power source has a power signal output terminal, an electric energy meter signal feedback terminal and a wireless communication port. The power signal output terminal and an electric energy meter signal are corresponding to and connected with an input terminal and a communication interface of a detected electric energy meter. The wireless communication port is in wireless communication connection with the mobile terminal. The commercial power input sends the power supply to the standard power source and the thermotank respectively. The mobile terminal controls the standard power source to output a power signal conforming with verification regulations to the detected electric energy meter in the thermotank. The electric energy meter sends a feedback signal to the standard power source. The standard power source sends the feedback signal of the detected electric energy meter to the mobile terminal to obtain verified data. The movable electric energy meter verification laboratory system can quickly perform on-site verification of a laboratory condition on the electric energy meter and ensures an accurate and reliable verified result.
Description
Technical field
The utility model relates to the electric energy meter field Calibration Technology, is specifically related to a kind of portable electric energy meter calibration laboratory system.
Background technology
Existing IEC standard, national standard, national metrological verification regulations about electric energy meter all require to carry out under stable condition for the performance test of electric energy meter, so the calibrating of electric energy meter is normally carried out in Measurement Laboratory.Be about to need the electric energy meter of calibrating to remove from supply line and takes back the laboratory, under the test condition of rules regulation, electric energy meter is examined and determine or carried out other performance tests with electric energy meter calibrating apparatus.But because the common distance users of Measurement Laboratory is far, and because the reasons such as job placement, so that the calibration interval are long.
In order to judge fast the electric energy meter of possibility misalignment, on-the-spot in-line calibration method also has application.On-the-spot in-line calibration typically refers to and carries standard such as standard electric energy meter or electric energy meter on-site calibrator to the tested table of the on-the-spot in-line calibration of power supply, and namely tested table need not remove.Voltage circuit with the tested table of the voltage circuit of standard access in parallel, (the general standard electric energy meter access of need to cutting off the power supply of the current return of the tested table of current return series connection access, the electric energy meter on-site calibrator access of can not cutting off the power supply), more tested table and the standard electric energy metrical reading in same time, thereby obtain the error of tested table, judge whether tested table is qualified.Tested table can be Source of Gateway Meter or large user's table, also may be the home-use electric energy table of general resident, but all relevant with trade settlement, so " calibrating " of indication has the legal system concept herein.
But on-the-spot in-line calibration condition does not all meet the relevant vertification regulation of country usually, for example supply line's actual load does not meet stable condition and unadjustable, site environment temperature does not meet test condition, so that the confidence level of verification result is not high, whether qualified conclusion is not easy to be accepted behind the electric energy meter calibration, causes causing civil disputation.In addition, in-line calibration also relates to a lot of safety problems.
The utility model content
The utility model proposes a kind of portable electric energy meter calibration laboratory system, can be at the scene fast electric energy meter be carried out calibrating under the laboratory condition, and can guarantee verification result accurately and reliably.
The utility model realizes that the technical scheme of above-mentioned purpose is: a kind of portable electric energy meter calibration laboratory system, comprise the civil power input, give the calibration power source that tested electric energy meter provides the regulation power supply signal, be used for accommodating tested electric energy meter and the constant temperature oven of setting constant temperature be provided and be used for the output of control criterion power source by the portable terminal of vertification regulation out-put supply signal, described calibration power source has the power supply signal output terminal, electric meter signal feedback end and wireless communication port, this power supply signal output terminal links to each other with communication interface with the input end of tested electric energy meter with electric meter signal is corresponding successively, and this wireless communication port is connected with the portable terminal radio communication; Calibration power source and constant temperature oven are delivered to power supply respectively in described civil power input, press power supply signal that vertification regulation the stipulates tested electric energy meter to the constant temperature oven by portable terminal control criterion power source output, tested electric energy meter is delivered to the calibration power source with feedback signal, and by the calibration power source feedback signal of tested electric energy meter is delivered to portable terminal acquisition calibrating data.
On the basis of the above, the utility model can be done following improvement:
Portable electric energy meter calibration laboratory system described in the utility model also comprises switch and is used as the supply module of standby power supply, this supply module comprises electric battery and inverter, described electric battery is exported electric energy and is delivered to respectively calibration power source and constant temperature oven through AC power and the input of described civil power of inverter conversion after switch is selected, in order to examine and determine by the supply module power supply without civil power the time.
Portable terminal described in the utility model has for the 3G network communication module that will examine and determine data and send to measurement centre, with the convenient calibrating data of uploading to measurement centre.Described portable terminal is panel computer.
Be provided with in the constant temperature oven described in the utility model be used to the meter connecting shelf that installs and fixes tested electric energy meter, the outer wall of described constant temperature oven is provided with terminal board, described meter connecting shelf is provided with a plurality of table rods that connect be used to the input end that connects tested electric energy meter, respectively connect the table rod and be electrically connected with the connection terminal of terminal board respectively, the installation of convenient tested electric energy meter and fixing.
Portable electric energy meter calibration laboratory system described in the utility model also comprises trolley, and described calibration power source, constant temperature oven, portable terminal, switch and supply module all place on the trolley, with convenient movement.
Compared with prior art, the utlity model has following beneficial effect:
(1) the utility model forms the mobile laboratory that is used for the calibrating electric energy meter by calibration power source, constant temperature oven and portable terminal, be equivalent to move Measurement Laboratory to scene, compare with fixed Measurement Laboratory, its calibrating speed is fast, the cycle short, safe ready;
(2) the utility model can provide with civil power input or supply module the power supply of calibrating electric energy meter, practical reliable, and guarantee the residing environment temperature of electric energy meter by constant temperature oven, satisfy the test condition requirement of national rule, compare with the mode of in-line calibration electric energy meter, more meet the rules requirement, verification result is with a high credibility, be accepted easily, reduced civil disputation;
(3) calibrating data of the present utility model can in time upload to by portable terminal the calibrating data management platform of department of measurement centre, by the upper management department suggestion of in time handling it, can avoid the on-site proving personnel judgment bias or other awkward situations to occur, reduce contradiction.
Description of drawings
Fig. 1 is that the utility model system connects schematic block diagram.
Embodiment
As shown in Figure 1, a kind of portable electric energy meter calibration laboratory system, comprise the civil power input, give the calibration power source that tested electric energy meter provides the regulation power supply signal, be used for accommodating tested electric energy meter and the constant temperature oven of setting constant temperature is provided, be used for the output of control criterion power source and press the portable terminal of vertification regulation out-put supply signal, switch and as the supply module of standby power supply, the calibration power source has the power supply signal output terminal, electric meter signal feedback end and wireless communication port, this power supply signal output terminal links to each other with communication interface with the input end of tested electric energy meter with electric meter signal is corresponding successively, and this wireless communication port is connected with the portable terminal radio communication.
Supply module comprises electric battery and inverter, electric battery output electric energy is delivered to respectively calibration power source and constant temperature oven through AC power and the civil power input of inverter conversion after switch is selected, press power supply signal that vertification regulation the stipulates tested electric energy meter to the constant temperature oven by portable terminal control criterion power source output, tested electric energy meter is delivered to the calibration power source with feedback signal, and by the calibration power source feedback signal of tested electric energy meter is delivered to portable terminal acquisition calibrating data.
Calibration power source, constant temperature oven, portable terminal, switch and supply module are portable construction, also the said equipment can be installed on the trolley, can move easily as required at the calibrating scene; Portable terminal is panel computer, is easy to carry the in-built verification software that is useful on electric energy meter calibration of panel computer.
Wherein, the Multi-functional standard power source of included error meter is adopted in the calibration power source, and this calibration power source is the Novel measuring instrument of the resource integrated technical design of table.Its effect is that the load point such as voltage, electric current, phase place of vertification regulation regulation are provided to tested electric energy meter, and receives the forward, reverse power pulse signal, clock pulse signal, period switching pulse signal etc. of electronic electric energy meter.The input power in calibration power source is AC220V, 1.5A, 50Hz.Output voltage range 0 ~ 264V, output current scope 0 ~ 60A, phase adjustment range 0 ~ 360 degree, frequency-tuning range 45 ~ 65Hz, electric energy metrical class of accuracy are 0.05 grade.Included error meter, 8 pin multifunctional signal input ports are arranged, all from this multifunctional signal input port input, this multifunctional signal input port is the electric meter signal feedback end in calibration power source to the RS-485 communication interface of the electrical energy impulse signals of tested electric energy meter, the pps pulse per second signal of clock, other function pulse signal and tested electric energy meter.Calibration power source external structure adopts overall plastic cabinet, the portable hand held design.
But constant temperature oven adopts the vehicle mounted portable dedicated constant temperature cabinet of design temperature, input power AC220V or DC12V.Temperature Setting scope-5 ~ 60 degree centigrade, 65 watts of refrigeration work consumptions, 30 minutes temperature control time.There are light-emitting diode display and Temperature Setting panel in the casing outside, and the measurement terminal board is arranged.Its effect is to provide to tested electric energy meter to satisfy 23 ℃ ± 2 ℃ the calibrating environmental baseline that vertification regulation requires.The general meter connecting shelf of electric energy meter calibrating apparatus is equipped with in constant temperature oven inside, to install and fix electric energy meter, have voltage on the meter connecting shelf and connect the pps pulse per second signal wire clamp equisignal line folder that table rod, electric current connect table rod, electrical energy impulse signals wire clamp and clock and be connected to constant temperature oven outer wall terminal board.Realize being electrically connected as long as the plug of the voltage output line in calibration power source, electric current output line, multifunctional signal input is inserted into respectively on the connection terminal of terminal board of constant temperature oven during work, in panel computer, under the control of verification software, namely consist of the complete electric energy meter calibration laboratory equipment of a cover.
Panel computer adopts universal panel computer, have for the 3G network communication module that will examine and determine data and send to measurement centre, in-built verification software is by the WiFi(wireless fidelity based on the short range wireless transmission technology of IEEE 802.11 standards) communication and calibration power sources traffic, transmission speed can reach 54Mbps, the work in controlled in wireless calibration power source, to finish the calibrating of electric energy meter by code method or the calibrating scheme that sets in advance, the calibrating procedure that its calibrating procedure and Measurement Laboratory electric energy meter calibrating apparatus use is identical, whole calibrating load point requirement of vertification regulation regulation can be satisfied, just single-phase electronic energy meter can be examined and determine, the reverse power error in dipping, experimental standard deviation, the error of time of day of internal clocking, period switching error and period register error and combined error etc.
Supply module mainly is made of electric battery and inverter, and battery capacity DC12V, 100AH adopt environment-friendly type lithium battery group.1000 watts of inverter output powers are to power devices behind the alternating current 220V voltage with the 12V DC voltage inversion of electric battery.About 250 watts of total maximum consumption power of the calibration power source in the present embodiment and constant temperature oven, under above-mentioned configuration, but system's continuous working 8 hours.Supply module as spare module, mainly is applicable to the on-the-spot special circumstances of being inconvenient to provide power supply in system, if tested electric energy meter working site can provide the civil power input of alternating current 220V power supply, just do not use supply module.
The course of work of native system is as follows:
(1) with the sub-socket of respective terminal on voltage output line plug, electric current output line plug and the multifunctional signal line plug insertion constant temperature oven terminal board in calibration power source, the power supply of connection standard power source and constant temperature oven;
(2) pulling down tested electric energy meter puts on the meter connecting shelf of constant temperature oven, the line pressing bolt of urgent electric current and voltage terminals is connected to the signal wire clamp electrical energy pulse output wiring terminal, time clock output wiring terminal, other fuction output connection terminal, the 485 communication connection terminals of tested table one by one.Close the case lid of constant temperature oven after carefully connecting the wire, set thermostat temperature and begin constant temperature;
When the temperature of (3) treating constant temperature oven reaches design temperature, open the verification software of panel computer, begin calibrating by the checkschema of setting.After calibrating is finished, the calibrating data communication device is crossed the calibrating data management platform that public 3G network is beamed back measurement centre.Judge conclusion according to verification result, qualifiedly then tested electric energy meter is reinstalled supply line, the defective measurement centre of then tested watchband being returned processes.
Claims (6)
1. portable electric energy meter calibration laboratory system, it is characterized in that: comprise the civil power input, give the calibration power source that tested electric energy meter provides the regulation power supply signal, be used for accommodating tested electric energy meter and the constant temperature oven of setting constant temperature be provided and be used for the output of control criterion power source by the portable terminal of vertification regulation out-put supply signal, described calibration power source has the power supply signal output terminal, electric meter signal feedback end and wireless communication port, this power supply signal output terminal links to each other with communication interface with the input end of tested electric energy meter with electric meter signal is corresponding successively, and this wireless communication port is connected with the portable terminal radio communication; Calibration power source and constant temperature oven are delivered to power supply respectively in described civil power input, press power supply signal that vertification regulation the stipulates tested electric energy meter to the constant temperature oven by portable terminal control criterion power source output, tested electric energy meter is delivered to the calibration power source with feedback signal, and by the calibration power source feedback signal of tested electric energy meter is delivered to portable terminal acquisition calibrating data.
2. portable electric energy meter calibration laboratory system according to claim 1, it is characterized in that: described portable electric energy meter calibration laboratory system also comprises switch and is used as the supply module of standby power supply, this supply module comprises electric battery and inverter, and described electric battery output electric energy is delivered to respectively calibration power source and constant temperature oven through AC power and the input of described civil power of inverter conversion after switch is selected.
3. portable electric energy meter calibration laboratory system according to claim 1 is characterized in that: described portable terminal has for the 3G network communication module that will examine and determine data and send to measurement centre.
4. portable electric energy meter calibration laboratory system according to claim 3, it is characterized in that: described portable terminal is panel computer.
5. each described portable electric energy meter calibration laboratory system according to claim 1-4, it is characterized in that: be provided with in the described constant temperature oven be used to the meter connecting shelf that installs and fixes tested electric energy meter, the outer wall of described constant temperature oven is provided with terminal board, described meter connecting shelf is provided with a plurality of table rods that connect be used to the input end that connects tested electric energy meter, respectively connects the table rod and is electrically connected with the connection terminal of terminal board respectively.
6. each described portable electric energy meter calibration laboratory system according to claim 1-4, it is characterized in that: described portable electric energy meter calibration laboratory system also comprises trolley, and described calibration power source, constant temperature oven, portable terminal, switch and supply module all place on the trolley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220606014 CN202916436U (en) | 2012-11-15 | 2012-11-15 | Movable electric energy meter verification laboratory system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220606014 CN202916436U (en) | 2012-11-15 | 2012-11-15 | Movable electric energy meter verification laboratory system |
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| CN202916436U true CN202916436U (en) | 2013-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220606014 Expired - Lifetime CN202916436U (en) | 2012-11-15 | 2012-11-15 | Movable electric energy meter verification laboratory system |
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| Country | Link |
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| CN (1) | CN202916436U (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 |
| CN103914090A (en) * | 2014-03-31 | 2014-07-09 | 湖北江山重工有限责任公司 | Gradient constant temperature control method |
-
2012
- 2012-11-15 CN CN 201220606014 patent/CN202916436U/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 |
| CN103914090A (en) * | 2014-03-31 | 2014-07-09 | 湖北江山重工有限责任公司 | Gradient constant temperature control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Yongbo Inventor after: Lin Fuliang Inventor after: Yang Jing Inventor after: Chen Zhongyong Inventor after: Zheng Bao Inventor after: Yu Kun Inventor after: Jiang Zhenchao Inventor after: Gan Degang Inventor after: Jiang Yingxia Inventor after: Ye Xiaoxue Inventor before: Ye Xiaoxue Inventor before: Lin Fuliang |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180510 Address after: 610072 1-7 25 Qinghua Road, Qingyang District, Chengdu, Sichuan, China 25 Co-patentee after: DANGXIONG COUNTY YANGYI THERMAL POWER STATION Co.,Ltd. Patentee after: STATE GRID SICHUAN ELECTRIC POWER Research Institute Co-patentee after: China Huadian Corporation Tibet branch Co-patentee after: Tibet Autonomous Region Branch of the National Development Bank Co-patentee after: GUANGZHOU GENY ELECTRIC Co.,Ltd. Address before: 510520 717, room 2, 60 gaotu Road, Gaotang New District, Guangzhou, Guangdong, Tianhe District Patentee before: GUANGZHOU GENY ELECTRIC Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130501 |