CN102338865B - Method for quickly calibrating error of three-phase intelligent electric energy meter - Google Patents
Method for quickly calibrating error of three-phase intelligent electric energy meter Download PDFInfo
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- CN102338865B CN102338865B CN 201110164877 CN201110164877A CN102338865B CN 102338865 B CN102338865 B CN 102338865B CN 201110164877 CN201110164877 CN 201110164877 CN 201110164877 A CN201110164877 A CN 201110164877A CN 102338865 B CN102338865 B CN 102338865B
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Abstract
The invention discloses a method for quickly calibrating the error of a three-phase intelligent electric energy meter. The method comprises the following steps of: applying rated voltage and rated current to a tested electric energy meter so as to make the electric energy meter enter a meter calibrating state; transmitting an instruction by using an upper computer, and reading an actual voltage value and an actual current value of the electric energy meter; setting a calibrating power factor as 1.0, and computing an error value according to standard power of a meter calibrating table and actual power of the electric energy meter; inputting the error value into the tested electric energy meter; setting a phase segmenting factor; computing an interval error value between actual power of each interval and the standard power of the meter calibrating table; and finishing the meter calibrating process. The method for quickly calibrating the error of the three-phase intelligent electric energy meter has the advantages of high efficiency, capability of ensuring product yield and capability of calibrating the meter reliably, safely and quickly.
Description
Technical field
The present invention relates to a kind of error quick calibration method for three-phase intelligent electric-energy meter.
Technical background
In electric system, various electric energy meters need to be calibrated its electric energy metering error before networking.
All the time, product system test, calibration rest on the inefficient stage, test one by one with the measuring equipment unit, project of every test is changed different software and equipment, and efficient is extremely low, the artificial judgment test result, easily cause erroneous judgement, fail to judge, cause unstable product quality.
Summary of the invention
For the efficient that overcomes prior art is low, shortcoming that can't products quality guarantee the invention provides a kind of efficient high, can ensure product percent of pass, can realize reliable, safety, the error quick calibration method that is used for three-phase intelligent electric-energy meter of calibration fast.
Be used for the error quick calibration method of three-phase intelligent electric-energy meter, comprise the following steps:
1), load rated voltage and rated current for tested electric energy meter, make electric energy meter enter the calibration state;
2), send instructions by under host computer, the actual voltage value of reading power meters and actual current value;
3), high-ranking officers' power factor (PF) is set to 1.0, calculate error amount according to the calibration power of correction platform and the real power of electric energy meter, with the tested electric energy meter of this error amount input, described tested electric energy meter is adjusted to rated voltage and rated current according to this error amount with its actual voltage value and actual current value;
4), obtain the phase error of tested electric energy meter, phase error is divided into the multistage interval, the phase place segment factor is set for each section interval;
5), calculate the real power of tested electric energy meter in each section interval, interval error amount between the calibration power of computation interval real power and correction platform, in the tested electric energy meter of interval error amount input, described tested electric energy meter is adjusted to the standard phase place according to this error amount with its actual phase;
6), the final stage phase error is interval to judge current interval, if, think that calibration completes, withdraw from the calibration state; If not, enter next section phase error interval, repeated execution of steps 5).
The all parameter settings of the present invention all arrange by PC control correction platform and tested electric energy meter.
It is high that the present invention has efficient, can ensure product percent of pass, can realize advantage reliable, safe, quick calibration.
Description of drawings
Fig. 1 is theory diagram of the present invention.
Embodiment
With reference to accompanying drawing, further illustrate the present invention:
Be used for the error quick calibration method of three-phase intelligent electric-energy meter, comprise the following steps:
1), load rated voltage and rated current for tested electric energy meter, make electric energy meter enter the calibration state;
2), send instructions by under host computer, the actual voltage value of reading power meters and actual current value;
3), high-ranking officers' power factor (PF) is set to 1.0, calculate error amount according to the calibration power of correction platform and the real power of electric energy meter, with the tested electric energy meter of this error amount input, described tested electric energy meter is adjusted to rated voltage and rated current according to this error amount with its actual voltage value and actual current value;
4), obtain the phase error of tested electric energy meter, phase error is divided into the multistage interval, the phase place segment factor is set for each section interval;
5), calculate the real power of tested electric energy meter in each section interval, interval error amount between the calibration power of computation interval real power and correction platform, in the tested electric energy meter of interval error amount input, described tested electric energy meter is adjusted to the standard phase place according to this error amount with its actual phase;
6), the final stage phase error is interval to judge current interval, if, think that calibration completes, withdraw from the calibration state; If not, enter next section phase error interval, repeated execution of steps 5).
The all parameter settings of the present invention all arrange by PC control correction platform and tested electric energy meter.
It is high that the present invention has efficient, can ensure product percent of pass, can realize advantage reliable, safe, quick calibration.
The described content of this instructions embodiment is only enumerating the way of realization of inventive concept; protection scope of the present invention should not be regarded as only limiting to the concrete form that embodiment states, protection scope of the present invention also reaches conceives the equivalent technologies means that can expect according to the present invention in those skilled in the art.
Claims (1)
1. be used for the error quick calibration method of three-phase intelligent electric-energy meter, comprise the following steps:
1), load rated voltage and rated current for tested electric energy meter, make electric energy meter enter the calibration state;
2), send instructions by under host computer, the actual voltage value of reading power meters and actual current value;
3), high-ranking officers' power factor (PF) is set to 1.0, calculate error amount according to the calibration power of correction platform and the real power of electric energy meter, with the tested electric energy meter of this error amount input, described tested electric energy meter is adjusted to rated voltage and rated current according to this error amount with its actual voltage value and actual current value;
4), obtain the phase error of tested electric energy meter, phase error is divided into the multistage interval, the phase place segment factor is set for each section interval;
5), calculate the real power of tested electric energy meter in each section interval, interval error amount between the calibration power of computation interval real power and correction platform, in the tested electric energy meter of interval error amount input, described tested electric energy meter is adjusted to the standard phase place according to this error amount with its actual phase;
6), the final stage phase error is interval to judge current interval, if, think that calibration completes, withdraw from the calibration state; If not, enter next section phase error interval, repeated execution of steps 5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110164877 CN102338865B (en) | 2011-06-17 | 2011-06-17 | Method for quickly calibrating error of three-phase intelligent electric energy meter |
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| CN 201110164877 CN102338865B (en) | 2011-06-17 | 2011-06-17 | Method for quickly calibrating error of three-phase intelligent electric energy meter |
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| CN102338865A CN102338865A (en) | 2012-02-01 |
| CN102338865B true CN102338865B (en) | 2013-11-06 |
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Families Citing this family (14)
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| CN102736055B (en) * | 2012-06-15 | 2016-07-13 | 宁波三星医疗电气股份有限公司 | The online test method of the three-phase intelligent ammeter accuracy of measuring |
| CN103809148B (en) * | 2012-11-12 | 2016-12-21 | 深圳供电局有限公司 | A kind of method and system measuring electric energy meter dynamic characteristic |
| CN103424728A (en) * | 2013-01-10 | 2013-12-04 | 万高(杭州)科技有限公司 | Method for performing single point correction on electric energy meter gain errors and phase errors |
| CN103885026B (en) * | 2014-03-13 | 2016-07-13 | 威胜集团有限公司 | Electric energy meter calibrating method |
| CN103969614B (en) * | 2014-04-24 | 2016-06-22 | 电子科技大学 | A kind of calibration steps of digital multimeter |
| CN104330764B (en) * | 2014-10-16 | 2017-04-26 | 深圳供电局有限公司 | Electric meter electricity consumption detection device and operation method thereof |
| CN104297717A (en) * | 2014-11-03 | 2015-01-21 | 青岛世泽电子仪表有限公司 | Electric energy meter correction method and system and electric energy meter |
| CN105093160B (en) * | 2015-07-28 | 2018-03-20 | 宁波三星医疗电气股份有限公司 | A kind of electric energy meter error segmented compensation method |
| CN105911505A (en) * | 2016-04-12 | 2016-08-31 | 广东工业大学 | Smart meter testing method |
| CN106154206A (en) * | 2016-06-20 | 2016-11-23 | 华立科技股份有限公司 | Electric energy meter error bearing calibration |
| CN107422292A (en) * | 2017-04-10 | 2017-12-01 | 华立科技股份有限公司 | Correction method for intelligent electric meter |
| CN110568397B (en) * | 2019-08-12 | 2022-06-14 | 浙江恒业电子有限公司 | Electric energy meter correction method and system based on MCU software |
| CN112230177A (en) * | 2019-12-20 | 2021-01-15 | 青岛鼎信通讯股份有限公司 | Three-phase self-recognition calibration method applied to electric meter |
| CN112213682A (en) * | 2019-12-20 | 2021-01-12 | 青岛鼎信通讯股份有限公司 | Precision self-calibration method applied to electric energy meter |
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Address after: 310030 No. 9 Longtan Road, front street, Yuhang District, Zhejiang, Hangzhou Patentee after: Hangzhou Sunrise Technology Co., Ltd. Address before: Hangzhou City, Zhejiang province 310030 West Lake science and Technology Park West eight road No. 2 Yinjiang Software Park building C Patentee before: Hangzhou Sunrise Technology Co., Ltd. |