CN104931916A - Repeatability test method applied to access three-phase intelligent energy meter automated verification system - Google Patents
Repeatability test method applied to access three-phase intelligent energy meter automated verification system Download PDFInfo
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- CN104931916A CN104931916A CN201510342737.6A CN201510342737A CN104931916A CN 104931916 A CN104931916 A CN 104931916A CN 201510342737 A CN201510342737 A CN 201510342737A CN 104931916 A CN104931916 A CN 104931916A
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Abstract
The invention relates to a repeatability test method applied to an access three-phase intelligent energy meter automated verification system. A verification process on an automated assembly line verification system comprises the steps that (1) according to preparation, standard energy meter information is input into the verification system; (2) according to loading, a standard energy meter tray is placed into an energy meter with binding position and normal tasks, and random mixing and flowing into an automated verification line body are carried out; (3) according to binding, an assembly line server binds the code number of the standard energy meter and the information of the tray according to a preset program; (4) according to test, an automatic line carries out a predetermined test scheme; (6) according to unloading, PLC automatically identifies the standard energy meter on the tray according to the bound information, and the standard energy meter tray circularly carries out the steps of (3), (4) and (5); and (6), according to data processing, verification data are exported. According to the invention, the system has the advantages of scientific design and easy operation, is accurate and reliable, carries out period verification on an energy metering device or instrument equipment, and can effectively, accurately and reliably transfer energy values.
Description
Technical field
The invention belongs to electrical measurement, instrument field, especially a kind of replica test method for access type three-phase intelligent electric-energy meter automatic calibration system.
Background technology
Electric energy has become that human society depends on for existence and development must indispensable a kind of important energy source, all activities of the mankind nearly all have close relationship with electricity, and electric energy meter detects the direct measuring instrument that electric energy uses standard, how to ensure that accurate, efficient, the effort of electrical energy meter calibration improve the verification efficiency of electric energy meter, just become pendulum needs solution badly problem in gauge check department at different levels.
In order to keep the reliability of electric power meter, testing apparatus, ensure electric energy value traceability and transitivity accurately and reliably, periodically examining and determine instrument and equipment according to relevant regulations stipulate, calibrate is one of effective way.Generally, in the check-verifying period of electric energy meter calibrating apparatus, electric energy metrical instrument equipment can normally work, the continual and steady of metering performance can be kept, but in actual use, due to the impact of the many factors such as method of operating, environmental baseline, frequency of utilization, transport, vibration, the performance of instrument and equipment may be made to change, ND fault and accident even occur.In order to ensure metrological standard unit, measuring equipment in twice calibrating, calibration intervals accurately and reliably, and keep good degree of confidence, correlometer gauge model is proposed verification request during measurement standard and measuring equipment.
Period verifies the confidence level referred to as keeping equipment Alignment state, between adjacent twice calibrating, calibration, and verification standard or measuring equipment carried out by suitable check standard and suitable method.It is the every metering performance index whether keeping when calibrating last time in order to judgment device that period verifies, and ensures that measuring process is controlled, guarantee transmission of quantity value accurately and reliably and degree of confidence.At present, the method that period verifies adopts detection of being reached the standard grade by electric energy meter to be measured, detection line is provided with and tens ofly reaches the standard grade detection demand to meet a large amount of electric energy meter to hundreds checkout equipment, the calibration of the accuracy of detection of this multiple stage checkout equipment itself becomes the another difficult problem ensureing electric energy meter accuracy of detection, because the volume of existing equipment own is large, weight large, it is mobile to be difficult to, need to carry out dismounting, wiring, calibration detection to checkout equipment respectively by manually carrying correcting device, often each calibration cycle time is long, and labor workload is large, inefficiency.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, provide a kind of design science, simple operation, accurately and reliably for the replica test method of access type three-phase intelligent electric-energy meter automatic calibration system.
The present invention solves its technical matters and takes following technical scheme to realize:
For a replica test method for access type three-phase intelligent electric-energy meter automatic calibration system, it is characterized in that: the verifying process flow step in automatic assembly line verification system is as follows:
(1) prepare: arrange the standard electric energy meter through mutual inductor access type three-phase intelligent electric-energy meter, standard electric energy meter precision is higher than task electric energy meter; Special bar code is formulated to standard electric energy meter, to distinguish with normal table; By standard electric energy meter Data Enter verification system, automatically can identify according to blind table bar code when upper table;
(2) fill table: table position place on the streamline run, on the empty pallet manually standard electric energy meter being put into arbitrarily or specifying, then standard electric energy meter pallet is put into bindings bit and normal task electric energy meter and mix at random and flow into automatic calibration line body;
(3) bind: standard electric energy meter is after bindings bit, and streamline server can be bound the information of the bar code number of standard electric energy meter and this pallet according to the scheme pre-set;
(4) test: standard electric energy meter flows through on streamline after each test special machine, and transfer matic can perform according to predetermined testing program, selects to do experiment to standard electric energy meter or do not do experiment;
(5) following table: standard electric energy meter is after test finished by each special plane, streamline enters following table flow process according to the flow process of setting, standard electric energy meter is after flowing through following table flow process, PLC can automatically according to the standard electric energy meter on this pallet of binding information identification, do not perform following table flow process, but standard electric energy meter pallet is let pass automatically, standard electric energy meter pallet can flow through bindings bit automatically, and circulation performs step flow process (3), (4), (5);
(6) data processing: the calibrating data of standard electric energy meter are inquired about in systems in which according to task number and standard electric energy meter bar code, obtains same electric power meter test of many times data, thus obtains verification system replica test result, and derives this calibrating data.
And the precision of this standard electric energy meter is 0.02 grade, and normal tasks electric energy meter to be detected is 2 grades.
And, the principle of work of standard electric energy meter is: voltage, electric current export respectively after the sampling of electric resistance partial pressure sampling summation current transformer becomes small-signal, do A/D conversion and send DSP process, DSP does real-time U, I computing, obtain real power value P, produce ratio by P controlled frequency generator and export in the high-frequency impulse of P, this pulse is electric energy high impulse, obtain the low pulse of electric energy by frequency divider frequency division, high and low frequency electrical energy pulse outputs to interface; While measuring P, DSP completes the measurement of voltage, current true virtual value phase place, frequency etc., and this measured value amount sends robotization calibration streamline to by 485 interfaces.
Advantage of the present invention and good effect are:
1, this method can verify electric energy meter calibrating apparatus and automatic calibration of electric energy meter systematic error, the fundamental error of calibrating verification electric energy meter calibrating apparatus and automatic calibration of electric energy meter system.
2, this method possesses dynamic kernel to function, when system calibration electric energy meter, standard electric energy meter is dynamically mixed in tested table as blind table, circulate in systems in which, enter calibrating unit at random, different epi-position error is monitored in real time, ensure calibrating data accurately and reliably.
3, this method adopts multiple-channel output consistency check, by the circulation of standard electric energy meter in the different epi-position of calibrating unit, tests out the error of corresponding epi-position, thus calculates the multiple-channel output consistance of automatic calibration of electric energy meter system.
4, design science of the present invention, simple operation, accurately and reliably, can realize carrying out period to electric power meter or instrument and equipment to verify, effectively can ensure that electric flux value transmit accurately, reliably, remarkable lifting to the detection efficiency of detection system accuracy and detection accuracy, thus effectively promotes whole detection work efficiency.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present invention;
Fig. 2 is verifying process flow figure of the present invention.
Embodiment
Below in conjunction with accompanying drawing, also by specific embodiment, the invention will be further described, and following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
For a replica test method for access type three-phase intelligent electric-energy meter automatic calibration system, the verifying process flow step in automatic assembly line verification system is as follows:
(1) prepare: the standard electric energy meter through mutual inductor access type three-phase intelligent electric-energy meter is set, the precision of this standard electric energy meter is 0.02 grade, and the electric energy meter that general resident uses, normal tasks electric energy meter namely to be detected is 2 grades, and standard electric energy meter precision is far above task electric energy meter;
Special bar code is formulated to standard electric energy meter, to distinguish with normal table; By standard electric energy meter Data Enter verification system, automatically can identify according to blind table bar code when upper table;
(2) fill table: table position place on the streamline run, on the empty pallet manually standard electric energy meter being put into arbitrarily or specifying, then standard electric energy meter pallet is put into bindings bit and normal task electric energy meter and mix at random and flow into automatic calibration line body;
(3) bind: standard electric energy meter is after bindings bit, and streamline server can be bound the information of the bar code number of standard electric energy meter and this pallet according to the scheme pre-set;
(4) test: standard electric energy meter flows through on streamline after each test special machine, and transfer matic can perform according to predetermined testing program, selects to do experiment to standard electric energy meter or do not do experiment;
(5) following table: standard electric energy meter is after test finished by each special plane, streamline enters following table flow process according to the flow process of setting, standard electric energy meter is after flowing through following table flow process, PLC can automatically according to the standard electric energy meter on this pallet of binding information identification, do not perform following table flow process, but standard electric energy meter pallet is let pass automatically, standard electric energy meter pallet can flow through bindings bit automatically, and circulation performs step flow process (3), (4), (5);
(6) data processing: the calibrating data of standard electric energy meter are inquired about in systems in which according to task number and standard electric energy meter bar code, obtains same electric power meter test of many times data, thus obtains verification system replica test result, and derives this calibrating data.
The replica test condition of electric power meter is carried out under the power factor of table 12 regulation and the condition of range of current in reference voltage, reference frequency and GB JJG597-2005, and its test findings should reach the standard of GB JJG597-2005 and GB/T-17215.701-2011.
The principle of work of the present embodiment Plays electric energy meter is shown in Figure 1:
Voltage, electric current export respectively after the sampling of electric resistance partial pressure sampling summation current transformer becomes small-signal, do A/D conversion and send DSP process, DSP does real-time U, I computing, obtain real power value P, produce ratio by P controlled frequency generator to export in the high-frequency impulse of P, this pulse is electric energy high impulse, and obtain the low pulse of electric energy by frequency divider frequency division, high and low frequency electrical energy pulse outputs to interface.
While measuring P, DSP also completes the measurement of voltage, current true virtual value phase place, frequency etc., and this measured value amount sends robotization calibration streamline to by 485 interfaces.
Although disclose embodiments of the invention and accompanying drawing for the purpose of illustration, but it will be appreciated by those skilled in the art that: in the spirit and scope not departing from the present invention and claims, various replacement, change and amendment are all possible, therefore, scope of the present invention is not limited to the content disclosed in embodiment and accompanying drawing.
Claims (3)
1. for a replica test method for access type three-phase intelligent electric-energy meter automatic calibration system, it is characterized in that: the verifying process flow step in automatic assembly line verification system is as follows:
(1) prepare: arrange the standard electric energy meter through mutual inductor access type three-phase intelligent electric-energy meter, standard electric energy meter precision is higher than task electric energy meter; Special bar code is formulated to standard electric energy meter, to distinguish with normal table; By standard electric energy meter Data Enter verification system, automatically can identify according to blind table bar code when upper table;
(2) fill table: table position place on the streamline run, on the empty pallet manually standard electric energy meter being put into arbitrarily or specifying, then standard electric energy meter pallet is put into bindings bit and normal task electric energy meter and mix at random and flow into automatic calibration line body;
(3) bind: standard electric energy meter is after bindings bit, and streamline server can be bound the information of the bar code number of standard electric energy meter and this pallet according to the scheme pre-set;
(4) test: standard electric energy meter flows through on streamline after each test special machine, and transfer matic can perform according to predetermined testing program, selects to do experiment to standard electric energy meter or do not do experiment;
(5) following table: standard electric energy meter is after test finished by each special plane, streamline enters following table flow process according to the flow process of setting, standard electric energy meter is after flowing through following table flow process, PLC can automatically according to the standard electric energy meter on this pallet of binding information identification, do not perform following table flow process, but standard electric energy meter pallet is let pass automatically, standard electric energy meter pallet can flow through bindings bit automatically, and circulation performs step flow process (3), (4), (5);
(6) data processing: the calibrating data of standard electric energy meter are inquired about in systems in which according to task number and standard electric energy meter bar code, obtains same electric power meter test of many times data, thus obtains verification system replica test result, and derives this calibrating data.
2. the replica test method for access type three-phase intelligent electric-energy meter automatic calibration system according to claim 1, is characterized in that: the precision of this standard electric energy meter is 0.02 grade, and normal tasks electric energy meter to be detected is 2 grades.
3. the replica test method for access type three-phase intelligent electric-energy meter automatic calibration system according to claim 1, is characterized in that: the principle of work of standard electric energy meter is:
Voltage, electric current export respectively after the sampling of electric resistance partial pressure sampling summation current transformer becomes small-signal, do A/D conversion and send DSP process, DSP does real-time U, I computing, obtain real power value P, produce ratio by P controlled frequency generator to export in the high-frequency impulse of P, this pulse is electric energy high impulse, and obtain the low pulse of electric energy by frequency divider frequency division, high and low frequency electrical energy pulse outputs to interface;
While measuring P, DSP completes the measurement of voltage, current true virtual value phase place, frequency etc., and this measured value amount sends robotization calibration streamline to by 485 interfaces.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3588899A (en) * | 1967-09-11 | 1971-06-28 | Philips Corp | Measuring device for example,frequency-modulation radio altimeter |
| CN102087351A (en) * | 2011-01-31 | 2011-06-08 | 浙江省电力公司 | Watt-hour meter inspection quality real-time monitoring device and method |
| CN102721940A (en) * | 2012-05-18 | 2012-10-10 | 深圳市科陆电子科技股份有限公司 | Fully compatible three-phase intelligent electricity meter full-automatic verification system |
| CN203825183U (en) * | 2014-05-23 | 2014-09-10 | 国家电网公司 | Automatic binding, reading and identification apparatus of electric energy meter information |
-
2015
- 2015-06-19 CN CN201510342737.6A patent/CN104931916B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3588899A (en) * | 1967-09-11 | 1971-06-28 | Philips Corp | Measuring device for example,frequency-modulation radio altimeter |
| CN102087351A (en) * | 2011-01-31 | 2011-06-08 | 浙江省电力公司 | Watt-hour meter inspection quality real-time monitoring device and method |
| CN102721940A (en) * | 2012-05-18 | 2012-10-10 | 深圳市科陆电子科技股份有限公司 | Fully compatible three-phase intelligent electricity meter full-automatic verification system |
| CN203825183U (en) * | 2014-05-23 | 2014-09-10 | 国家电网公司 | Automatic binding, reading and identification apparatus of electric energy meter information |
Non-Patent Citations (4)
| Title |
|---|
| 周莉: "单相电能表自动检定流水线***的应用研究", 《电气技术》 * |
| 徐新光等: "PRS200.3在检定电能表检定装置中的应用", 《电测与仪表》 * |
| 肖涛等: "计量自动化流水线检定***质量监控方法应用研究", 《电测与仪表》 * |
| 邢菁: "高等级电能表标准装置综合误差测试自动化改进", 《电力科学与工程》 * |
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