CN102087351B - Watt-hour meter inspection quality real-time monitoring device and method - Google Patents
Watt-hour meter inspection quality real-time monitoring device and method Download PDFInfo
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- CN102087351B CN102087351B CN201110033604.2A CN201110033604A CN102087351B CN 102087351 B CN102087351 B CN 102087351B CN 201110033604 A CN201110033604 A CN 201110033604A CN 102087351 B CN102087351 B CN 102087351B
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Abstract
The invention relates to a watt-hour meter inspection device and method, in particular relating to a watt-hour meter inspection quality real-time monitoring device and method. The existing standard watt-hour meter usually conducts inspection within a certain period of time, and the quality of a batch of watt-hour meters is influenced if the error of the standard watt-hour meter increases within the period of time so as not to ensure the accuracy of the watt-hour meters. The invention is characterized in that the watt-hour meter inspection quality real-time monitoring device comprises a second standard watt-hour meter provided with an input terminal connected with a voltage and current output device, and a second error calculator connected with a first standard watt-hour meter and a second standard watt-hour meter and used for testing the comparison error of the first standard watt-hour meter and the second standard watt-hour meter, wherein the second error calculator is communicated with a computer for outputting the comparison result of output pulse of the first standard watt-hour meter and the second standard watt-hour meter to the computer. The watt-hour meter inspection device can ensure the normal function of the watt-hour meter inspection device, thereby ensuring the quality of the watt-hour meter and improving the stability.
Description
Technical field
The present invention relates to a kind of calibrator for watt-hour meter and method.
Background technology
On existing calibrator for watt-hour meter, generally adopt relative method to carry out the error of electric energy meter to test at present.Because electric energy meter calibration rules are more and more higher to the requirement of electric energy meter error, therefore to the supporting accuracy of standard electric energy meter of calibrator for watt-hour meter itself and also corresponding raising of the requirement of stability.General standard electric energy meter just checked every a period of time, if become large at this time period internal standard electric energy meter error, affected the quality of electric energy meter that this batch examined, and the accuracy of electric energy meter can not be guaranteed.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition is that prior art scheme is improved and improved, and provides a kind of real-time quality monitoring device for electric energy meter verification device and method, to reach the object that guarantees electric energy meter quality.For this reason, the present invention takes following technical scheme.
Real-time quality monitoring device for electric energy meter verification device, calibrator for watt-hour meter comprises voltage and current output unit, the first standard electric energy meter being connected with voltage and current output unit, the first Error Calculator that connects the first standard electric energy meter and tested electric energy meter, the computing machine being connected with the first Error Calculator communication, it is characterized in that: real-time quality monitoring device for electric energy meter verification device comprises the second standard electric energy meter that input end is connected with voltage and current output unit and with first, the second master meter connect for testing first, the second Error Calculator of the second master meter comparison error, the second Error Calculator is connected with computer communication with by first, the second standard electric energy meter output pulse comparison result is given computing machine.First knows poor counter for calculating the comparison error of the first standard electric energy meter and tested electric energy meter output pulse, and when error is greater than setting value, notice computing machine is to judge that this tested electric energy meter is as defective.The second Error Calculator is compared to the output pulse of first, second standard electric energy meter, when both comparison error amounts surpass setting value, and notice computing machine; The real-time monitoring of realization to the first standard electric energy meter, the quality of assurance electric energy meter.
As the further of technique scheme improved and supplemented, the present invention also comprises following additional technical feature.
Described real-time quality monitoring device for electric energy meter verification device is located in the housing of calibrator for watt-hour meter.The second Error Calculator and the second standard electric energy meter are connected in calibrator for watt-hour meter for a long time, as a part for calibrator for watt-hour meter.
The second Error Calculator is compared according to the output pulse of first, second standard electric energy meter, calculate both comparison errors, by judgement, compare error, whether the quality inspection of monitoring in real time calibrator for watt-hour meter is normal to guarantee calibrator for watt-hour meter function in specialized range.
When the comparison error of first, second standard electric energy meter surpasses certain value, the second Error Calculator notice computing machine, computing machine stops the check to tested electric energy meter.
The standard electric energy meter that the first standard electric energy meter and the second standard electric energy meter are same class of accuracy, and the error characteristics of first, second standard electric energy meter are basically identical.Consistance to guarantee to detect, prevents misoperation.
Beneficial effect: the second Error Calculator is compared according to the output pulse of first, second standard electric energy meter, calculate both comparison errors, by judgement, compare error, whether the quality inspection of monitoring calibrator for watt-hour meter is normal to guarantee calibrator for watt-hour meter function in specialized range in real time, guarantee the quality of electric energy meter, improve stability.
Accompanying drawing explanation
Fig. 1 is the single-phase apparatus structure schematic diagram of the present invention.
Fig. 2 is three-phase installation structural representation of the present invention.
Embodiment
Below in conjunction with Figure of description, technical scheme of the present invention is described in further detail.
As shown in Figure 1, 2, real-time quality monitoring device for electric energy meter verification device, calibrator for watt-hour meter comprises voltage and current output unit, the first standard electric energy meter being connected with voltage and current output unit, connection the first standard electric energy meter and the first Error Calculator of tested electric energy meter, the computing machine being connected with the first Error Calculator communication; Real-time quality monitoring device for electric energy meter verification device comprise the second standard electric energy meter that input end is connected with voltage and current output unit and be connected with first, second master meter for testing first, second master meter, compare the second Error Calculator of error, the second Error Calculator is connected to give computing machine by first, second standard electric energy meter output pulse comparison result with computer communication.Real-time quality monitoring device for electric energy meter verification device is located in the housing of calibrator for watt-hour meter.
Test of kilo watthour meter real-time quality monitoring method: the second Error Calculator is compared according to the output pulse of first, second standard electric energy meter, calculate both comparison errors, by judgement, compare error, whether the quality inspection of monitoring in real time calibrator for watt-hour meter is normal to guarantee calibrator for watt-hour meter function in specialized range.When the comparison error of first, second standard electric energy meter surpasses certain value, the second Error Calculator notice computing machine, computing machine stops the check to tested electric energy meter.The standard electric energy meter that the first standard electric energy meter and the second standard electric energy meter are same class of accuracy, and the error characteristics of first, second standard electric energy meter are basically identical.
In Fig. 1, the input end of the first standard electric energy meter, the second standard electric energy meter is electrically connected to the single-phase output terminal of voltage and current output unit by a connecting line, and the second Error Calculator is carried out error contrast to the single-phase voltage pulse of the output of first, second standard electric energy meter and current impulse.In Fig. 2, the input end of first, second standard electric energy meter is electrically connected to the three-phase output end of voltage and current output unit by three connecting lines respectively, and the second Error Calculator is carried out error contrast to the three-phase voltage pulse of the output of first, second standard electric energy meter and three-phase current pulse respectively.
Real-time quality monitoring device for electric energy meter verification device shown in above Fig. 1,2 and method are specific embodiments of the invention; substantive distinguishing features of the present invention and progress have been embodied; can be according to actual use needs; under enlightenment of the present invention; it is carried out to the equivalent modifications of the aspects such as shape, structure, all at the row of the protection domain of this programme.
Claims (4)
1. real-time quality monitoring device for electric energy meter verification device, calibrator for watt-hour meter comprises voltage and current output unit, the first standard electric energy meter being connected with voltage and current output unit, the first Error Calculator that connects the first standard electric energy meter and tested electric energy meter, the computing machine being connected with the first Error Calculator communication, it is characterized in that: real-time quality monitoring device for electric energy meter verification device comprises the second standard electric energy meter that input end is connected with voltage and current output unit and with first, the second standard electric energy meter connect for testing first, the second Error Calculator of the second standard electric energy meter comparison error, the second Error Calculator is connected with computer communication with by first, the second standard electric energy meter output pulse comparison result is given computing machine, described real-time quality monitoring device for electric energy meter verification device is located in the housing of calibrator for watt-hour meter.
2. adopt the test of kilo watthour meter real-time quality monitoring method of real-time quality monitoring device for electric energy meter verification device claimed in claim 1, it is characterized in that: the second Error Calculator is compared according to the output pulse of first, second standard electric energy meter, calculate both comparison errors, by judgement, compare error, whether the quality inspection of monitoring in real time calibrator for watt-hour meter is normal to guarantee calibrator for watt-hour meter function in specialized range.
3. test of kilo watthour meter real-time quality monitoring method according to claim 2, it is characterized in that: when the comparison error of first, second standard electric energy meter surpasses certain value, the second Error Calculator notice computing machine, computing machine stops the check to tested electric energy meter.
4. test of kilo watthour meter real-time quality monitoring method according to claim 3, is characterized in that: the first standard electric energy meter and the second standard electric energy meter are the standard electric energy meter with class of accuracy, and the error characteristics of first, second standard electric energy meter are basically identical.
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| CN201110033604.2A CN102087351B (en) | 2011-01-31 | 2011-01-31 | Watt-hour meter inspection quality real-time monitoring device and method |
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| CN201110033604.2A CN102087351B (en) | 2011-01-31 | 2011-01-31 | Watt-hour meter inspection quality real-time monitoring device and method |
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| CN102087351A CN102087351A (en) | 2011-06-08 |
| CN102087351B true CN102087351B (en) | 2014-03-26 |
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| CN104183110B (en) * | 2014-09-05 | 2017-09-01 | 国家电网公司 | Check system for acquisition terminal automatic calibration flow-line equipment |
| CN104914399B (en) * | 2015-06-19 | 2017-08-25 | 国网天津市电力公司 | A kind of electric power meter calibration method for single-phase intelligent electric energy meter automatic calibration system |
| CN104931916B (en) * | 2015-06-19 | 2017-07-28 | 国网天津市电力公司 | A kind of replica test method for access type three-phase intelligent electric-energy meter automatic calibration system |
| CN104914403B (en) * | 2015-06-19 | 2017-08-29 | 国网天津市电力公司 | A kind of electric power meter calibration method for direct-insert three-phase intelligent electric-energy meter automatic calibration system |
| CN104931917A (en) * | 2015-06-19 | 2015-09-23 | 国网天津市电力公司 | Repeatability test method applied to drive-in three-phase intelligent energy meter automated verification system |
| CN104914400B (en) * | 2015-06-19 | 2017-07-28 | 国网天津市电力公司 | A kind of electric power meter calibration method for access type three-phase intelligent electric-energy meter automatic calibration system |
| CN104914395B (en) * | 2015-06-19 | 2017-07-28 | 国网天津市电力公司 | A kind of detection quality verification method for single-phase intelligent electric energy meter automatic calibration system |
| CN110471021A (en) * | 2018-05-10 | 2019-11-19 | 宁夏隆基宁光仪表股份有限公司 | A kind of electric energy meter calibrating apparatus and method with built-in monitoring base table |
| CN109738850A (en) * | 2019-03-11 | 2019-05-10 | 广东电网有限责任公司 | A kind of electric energy measuring equipment calibrating installation based on the switching of multi-standard table |
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Inventor after: Jiang Xueming Inventor after: Huang Jinjuan Inventor after: Wang Wei Inventor after: Zhu Jiong Inventor after: Zhang Yan Inventor after: Xu Linsong Inventor after: Xu Yanming Inventor before: Jiang Xueming Inventor before: Wang Wei Inventor before: Zhu Jiong Inventor before: Zhang Yan Inventor before: Xu Linsong Inventor before: Xu Yanming |
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Address after: 310007 Huanglong Road, Hangzhou, Zhejiang, No. 8, No. Co-patentee after: State Grid Corporation of China Patentee after: State Grid Zhejiang Electric Power Company Address before: 310007 Huanglong Road, Hangzhou, Zhejiang, No. 8, No. Co-patentee before: State Grid Corporation of China Patentee before: Zhejiang Electric Power Company |