AU2011371437B2 - Electric energy meter on-line detection method - Google Patents
Electric energy meter on-line detection method Download PDFInfo
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- AU2011371437B2 AU2011371437B2 AU2011371437A AU2011371437A AU2011371437B2 AU 2011371437 B2 AU2011371437 B2 AU 2011371437B2 AU 2011371437 A AU2011371437 A AU 2011371437A AU 2011371437 A AU2011371437 A AU 2011371437A AU 2011371437 B2 AU2011371437 B2 AU 2011371437B2
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- electric energy
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
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- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
Provided is an electric energy meter on-line detection method, applicable to on-site calibration, periodical inspection and faulty meter calibration. An electric energy meter to be detected is connected to a standard electric energy meter by series connection for current and parallel connection for voltage; a power pulse signal is read from the electric energy meter to be detected and is then input into the standard meter; an error is displayed on the standard meter, so that the electric energy metering error of the electric energy meter to be detected can be read out directly. The present invention makes full use of existing devices and incorporates multiple functions on one meter. The electric energy meter need not be dismantled, and the detection can be performed on line, thereby reducing the workload of periodical inspection on the electric energy meter and calibration on the faulty meter, improving working efficiency, and reducing cost.
Description
ELECTRIC ENERGY METER ONLINE DETECTION METHOD FIELD OF THE INVENTION [0001] The invention relates to an electric energy meter online detection method, and particularly to an electric energy meter online detection method applicable to on site calibration, periodical inspection and faulty meter calibration. BACKGROUND [0002] Frictions often occur between an enterprise and an electric power department due to electric energy metering. The enterprise cannot take down electric energy meters and send them to a detection center to test. At present, the two working groups of the outside test team have only two on-site calibrators, so the workload of periodical inspection and faulty meter calibration is very heavy. In case of encountering temporary emergency and being unable to deploy the on-site calibrators, metering dispute will be caused, which is related to quality service and social image of power enterprises. Judging from the current situation, the subject of metrological workers is that how to detect this kind of electric energy meter by using existing advanced measuring devices on the premise of not purchasing new instruments. Large electricity consumption enterprises generally use electronic three-phase three-wire power meters to carry out electric energy metering, and the on-site electric energy meter is generally DSSD331-3 meter. For example, the existing meter is SIDA ST 1300. [0003] Any discussion of the prior art throughout the specification should in no way be considered as an admission that such prior art is widely known or forms part of common general knowledge in the field. SUMMARY OF THE INVENTION [0004] Embodiments of the invention aim to solve the problems of the prior art, specifically providing an electric meter detection method, which solves the problems - 1 of the prior art that workload of electric meters periodical inspection and faulty meter calibration is very heavy. The invention has a low cost and improves work efficiency. [0005] One embodiment of the present invention provides an online method of detecting an electric energy meter to be detected, the method comprising the following steps. [0006] shorting the voltage ground terminals of the standard meter by wire, and connecting them to the B-phase voltage terminal of the electric energy meter to be detected; [0007] respectively connecting the A-phase and C-phase voltage terminals of the standard meter with the A-phase and C-phase voltage terminals of the electric energy meter to be detected; [0008] connecting the A-phase and C-phase current input and output terminals of the standard meter in series to the A-phase and C-phase of the electric energy meter to be detected; [0009] respectively connecting two terminals of a current junction box with the A-phase and C-phase current input and output terminals of the standard meter; [0010] connecting a pulse signal input terminal of the standard meter with a signal output terminal of the electric energy meter to be detected by a pulse signal cable; [0011] powering on the standard meter; [0012] disconnecting a current short jumper connection in the current junction box of the electric energy meter to be detected; [0013] adjusting parameters of the standard meter to measure electric energy, and determining an electric energy metering error of the electric energy meter to be detected directly from the standard meter. - 2- [0014] The current short jumper in the junction box is disconnected after the current connection of the standard meter is connected; when the detection result is good, the current short jumper in the junction box is shorted and the connection of the standard meter is disconnected. [0015] The standard meter is preferably a SIDA ST-1300 type electric energy meter. [0016] The electric energy meter to be detected is preferably a DSSD331-3 type electronic three-phase three-wire electric energy meter. [0017] The beneficial effects of the preferred embodiments of the invention are as follows: [0018] The preferred embodiments of the present invention make full use of existing devices and incorporates multiple functions on one meter. The electric energy meter need not be dismantled, and the detection can be performed on line, thereby reducing the workload of periodical inspection on the electric energy meter and calibration on the faulty meter, improving working efficiency and reducing cost. BRIEF DESCRIPTION OF THE DRAWINGS [0019] Fig. 1 is a schematic diagram of the circuit principle of the invention. [0020] Fig. 2 is a structure schematic diagram of pulse output socket of a detected electric energy meter of the invention. [0021] Fig. 3 is a structure schematic diagram of pulse input socket of the detected electric energy meter of the invention. [0022] Fig. 4 is a schematic diagram of a pulse signal cable for signal acquisition of the invention. [0023] wherein: WN, standard electric energy meter; WX, detected electric energy meter; Fout, detected electric energy meter power pulse signal output; Fin, standard electric energy meter power pulse signal input; 1, none power pulse hole; 2, -3 power pulse hole; 3, external power supply hole; 4, external ground hole; 5, pulse input hole; 6, external 5V power supply; 7, GND signal ground. DESCRIPTION OF THE EMBODIMENTS [0024] The invention will be further explained hereinafter when taken in connection with the accompanying drawings and the embodiments. [0025] Referring to the drawings, a DSSD3313-3 type electronic three-phase three-wire electric energy meter to be detected is connected to a SIDA ST-1300 type standard electric energy meter by series connection for current and parallel connection for voltage method. A power pulse signal is read from the electric energy meter to be detected and then is input into the standard meter. An error is displayed on the standard meter, so that the electric energy metering error of the electric energy meter to be detected is read out directly. In general, online detection users are mostly large electricity users, so that electric meters are generally installed in a secondary loop, voltage of which is about 100V and current of which is about 5A. [0026] The steps of the online detection method are as follows: [0027] shorting the voltage ground terminals of the standard meter by wire, and connecting them to the B-phase voltage terminal of the electric energy meter to be detected; [0028] connecting the A-phase and C-phase voltage terminals of the standard meter with the A-phase and C-phase voltage terminals of the electric energy meter to be detected, respectively; [0029] seriesly connecting the A-phase and C-phase current input and output terminals of the standard meter to the A-phase and C-phase of the electric energy meter to be detected; [0030] connecting two terminals of a current junction box with the A-phase and C-phase current input and output terminals of the standard meter, respectively; -4- [0031] connecting a pulse signal input terminal of the standard meter with a signal output terminal of the electric energy meter to be detected by a pulse signal cable; [0032] turning on power of the standard meter; [0033] checking the wiring, ensuring that the connection is firm; [0034] disconnecting a current short jumper in the current junction box of the electric energy meter to be detected; [0035] adjusting parameters of the standard meter to meter electric energy, and reading out an electric energy metering error of the electric energy meter to be detected is directly from the standard meter. [0036] The current short jumper in the junction box is disconnected after the current connection of the standard meter is connected; when the detection result is good, the current short jumper in the junction box is shorted and the connection of the standard meter is disconnected. [0037] Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is to say, in the sense of "including, but not limited to". -5 -
Claims (4)
1. An online method of detecting an electric energy meter to be detected, the method comprising the following steps: shorting the voltage ground terminals of a standard meter by wire, and connecting them to the B-phase voltage terminal of the electric energy meter to be detected; respectively connecting the A-phase and C-phase voltage terminals of the standard meter with the A-phase and C-phase voltage terminals of the electric energy meter to be detected; connecting the A-phase and C-phase current input and output terminals of the standard meter in series to the A-phase and C-phase of the electric energy meter to be detected; respectively connecting two terminals of a current junction box of the electric energy meter with the A-phase and C-phase current input and output terminals of the standard meter; connecting a pulse signal input terminal of the standard meter with a signal output terminal of the electric energy meter to be detected by a pulse signal cable; powering on the standard meter; disconnecting a current short jumper connection in the current junction box of the electric energy meter to be detected; and adjusting parameters of the standard meter to measure electric energy, and determining an electric energy metering error of the electric energy meter to be detected directly from the standard meter. - 6-
2. The method according to claim 1, wherein: the current short jumper connection in the junction box is disconnected after the current connection of the standard meter is connected; and when the detection result is good, the current short jumper in the junction box is shorted and the connection of the standard meter is disconnected.
3. The method according to claim 1 or claim 2, wherein: the standard meter is a SIDA ST-1300 type electric energy meter.
4. The method according to any one of the preceding claims, wherein: the electric energy meter to be detected is a DSSD331-3 type electronic three-phase three wire electric energy meter. - 7-
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110165040A CN102331570A (en) | 2011-06-20 | 2011-06-20 | Electric energy meter on-line detection method |
| CN201110165040.8 | 2011-06-20 | ||
| PCT/CN2011/001901 WO2012174693A1 (en) | 2011-06-20 | 2011-11-14 | Electric energy meter on-line detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2011371437A1 AU2011371437A1 (en) | 2014-01-16 |
| AU2011371437B2 true AU2011371437B2 (en) | 2016-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2011371437A Active AU2011371437B2 (en) | 2011-06-20 | 2011-11-14 | Electric energy meter on-line detection method |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN102331570A (en) |
| AU (1) | AU2011371437B2 (en) |
| WO (1) | WO2012174693A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866728A (en) * | 2016-06-13 | 2016-08-17 | 国网江苏省电力公司电力科学研究院 | Real-time checking system of automated ammeter calibrating device |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454613B (en) * | 2013-09-24 | 2016-02-03 | 国家电网公司 | Electric energy meter locating device |
| CN105093011B (en) * | 2015-07-21 | 2018-08-14 | 国网浙江省电力公司绍兴供电公司 | A kind of electric vehicle alternating current-direct current charging pile calibrating conversion equipment |
| CN108872908B (en) * | 2016-03-02 | 2021-04-27 | 中国人民解放军91663部队 | On-line checking method for power meter with metering interface |
| CN110082701A (en) * | 2019-05-13 | 2019-08-02 | 国网天津市电力公司电力科学研究院 | A kind of electric energy meter measurement error on-line monitoring circuit and method based on copper-manganese sampling |
| CN110082700A (en) * | 2019-05-13 | 2019-08-02 | 国网天津市电力公司电力科学研究院 | A kind of electric energy meter measurement error on-line monitoring circuit and method based on CT sampling |
| CN111999692B (en) * | 2019-05-27 | 2023-03-14 | 深圳电蚂蚁数据技术有限公司 | Multi-table error calibration method and device |
| CN111856103A (en) * | 2020-07-02 | 2020-10-30 | 国网山东省电力公司淄博供电公司 | Electric power electricity larceny prevention detection instrument and method |
| CN111965587B (en) * | 2020-08-26 | 2024-01-26 | 安徽南瑞中天电力电子有限公司 | Automatic test method and automatic test platform for stability of electric energy meter |
| CN113126019B (en) * | 2021-04-19 | 2023-05-12 | 广东电网有限责任公司计量中心 | Remote estimation method, system, terminal and storage medium for error of intelligent ammeter |
| CN113466778B (en) * | 2021-07-01 | 2022-03-08 | 深圳市先行电气技术有限公司 | Ammeter calibration method |
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| CN101957439A (en) * | 2010-02-10 | 2011-01-26 | 江西省电力科学研究院 | Sampling and calculating separated type electric energy meter calibrating method and electric energy meter site parameter recorder |
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| JPS6154474A (en) * | 1984-08-25 | 1986-03-18 | Fuji Electric Co Ltd | Testing device for watthour meter |
| CN101140320B (en) * | 2006-09-07 | 2010-05-26 | 深圳市科陆电子科技股份有限公司 | Electrical energy meter calibration stand and checking method thereof |
| CN201122172Y (en) * | 2008-04-30 | 2008-09-24 | 彭黎迎 | Electric energy meter capable of measuring electric energy measurement error |
| CN101592717B (en) * | 2009-06-30 | 2011-09-07 | 深圳市科陆电子科技股份有限公司 | Method and system for automatically calibrating electrical instrument |
| CN101900799A (en) * | 2009-09-30 | 2010-12-01 | 广东电网公司电力科学研究院 | Digital electric energy meter checking device based on analog source tracing method |
| CN201828659U (en) * | 2010-06-11 | 2011-05-11 | 威胜集团有限公司 | Inspection device of digitalized electric energy meter |
| CN201698018U (en) * | 2010-07-20 | 2011-01-05 | 威胜集团有限公司 | Digitized field electricity meter inspection system |
| CN101957440B (en) * | 2010-08-23 | 2013-01-30 | 太原市优特奥科电子科技有限公司 | Error amount value verification device and error amount value transfer method of digital electric energy meter |
| CN102087352B (en) * | 2011-01-31 | 2013-02-13 | 浙江省电力公司 | Three-phase intelligent watt-hour meter inspection device and method |
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2011
- 2011-06-20 CN CN201110165040A patent/CN102331570A/en active Pending
- 2011-11-14 AU AU2011371437A patent/AU2011371437B2/en active Active
- 2011-11-14 WO PCT/CN2011/001901 patent/WO2012174693A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101957439A (en) * | 2010-02-10 | 2011-01-26 | 江西省电力科学研究院 | Sampling and calculating separated type electric energy meter calibrating method and electric energy meter site parameter recorder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866728A (en) * | 2016-06-13 | 2016-08-17 | 国网江苏省电力公司电力科学研究院 | Real-time checking system of automated ammeter calibrating device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012174693A1 (en) | 2012-12-27 |
| CN102331570A (en) | 2012-01-25 |
| AU2011371437A1 (en) | 2014-01-16 |
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