CN103926553A - Self-service single-phase electric energy meter error calibration device and method - Google Patents

Self-service single-phase electric energy meter error calibration device and method Download PDF

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Publication number
CN103926553A
CN103926553A CN201410166668.3A CN201410166668A CN103926553A CN 103926553 A CN103926553 A CN 103926553A CN 201410166668 A CN201410166668 A CN 201410166668A CN 103926553 A CN103926553 A CN 103926553A
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China
Prior art keywords
electric energy
energy meter
error
phase
phase electric
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CN201410166668.3A
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Chinese (zh)
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CN103926553B (en
Inventor
陈俊
王作维
陈莉
郭雨
邓桂平
郭玥
余文宙
张毅斌
沈怡
郭楠
Original Assignee
国家电网公司
国网湖北省电力公司电力科学研究院
郑州三晖电气股份有限公司
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Priority to CN201410166668.3A priority Critical patent/CN103926553B/en
Publication of CN103926553A publication Critical patent/CN103926553A/en
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Publication of CN103926553B publication Critical patent/CN103926553B/en

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Abstract

The invention discloses a self-service single-phase electric energy meter error calibration device and method and relates to the technology of error calibration of single-phase electric energy meters. According to the device, a PC is connected with a signal source, the signal source is connected with the input end of a voltage power amplifier and the input end of a current power amplifier, the output end of the voltage power amplifier and the output end of the current power amplifier are connected with a standard single-phase electric energy meter and a calibrated single-phase electric energy meter respectively, the standard single-phase electric energy meter (30) and the calibrated single-phase electric energy meter are both connected with an error calculator, and the PC is connected with the error calculator, a human-computer interaction touch screen and a data output module. According to the self-service single-phase electric energy meter error calibration device and method, operation is easy, using is convenient, the error of the electric energy meter can be monitored and calibrated according to personal willingness and requirements, accuracy and fairness of electric energy measurement are ensured, and the credibility of measurement conducted through the electric energy meter can be improved in the whole society.

Description

The self-service single-phase electric energy meter devices and methods therefor that calibrates for error

Technical field

The present invention relates to the single-phase electric energy meter technology that calibrates for error, relate in particular to a kind of self-service single-phase electric energy meter devices and methods therefor that calibrates for error.

Background technology

Along with the widespread use of intelligent electric energy meter and installation in batches, electric energy meter calibrating apparatus also correspondingly emerges in an endless stream.At present, on market, emerge in large numbers a large amount of pipeline electric energy meters calibrating installations, comprised that complete streamline detects station and program, can carry out large-scale electric energy meter calibration detection, can improve significantly productive labor efficiency, saved testing cost.But this scale pick-up unit is not suitable for the detection of single electric energy meter, if at random single electric energy meter is detected, or according to personal inclination and demand, the indices of electric energy meter is tested, adopt streamline pick-up unit just to seem burdensome, too fat to move, waste resource, this just needs a kind of " self-service " formula electric energy meter error calibrating installation to realize error testing at any time, everywhere.

Summary of the invention

Object of the present invention is just to overcome the problem and shortage that prior art exists, and a kind of single-phase electric energy meter simple in structure, easy to operate, self-service devices and methods therefor that calibrates for error is provided, and realizes the self-service of electric energy meter and calibrates for error.

The object of the present invention is achieved like this:

The self-service single-phase electric energy meter device (abbreviation device) that calibrates for error

This device comprises target---by school single-phase electric energy meter;

Be provided with PC, program control single-phase power source, standard single-phase electric energy meter, the unit that automatically connects, takes out stitches, Error Calculator, man-machine interaction touch-screen and data outputting module;

Program control single-phase phase power source is comprised of signal source, voltage power amplifier and current power amplifier;

The annexation of this device is:

PC is connected with signal source by RS-232 interface; Signal source output terminal connects respectively the input end of voltage power amplifier and current power amplifier; The output terminal of voltage power amplifier is by the voltage circuit of pressure-wire V parallel join to standard single-phase electric energy meter and the unit that automatically connects, takes out stitches; The output terminal of current power amplifier is by the electric current line I current return to a standard single-phase electric energy meter and the unit that automatically connects, takes out stitches connected in series;

Automatically the unit that connects, takes out stitches is connected to one by the voltage of school single-phase electric energy meter, current return;

Standard single-phase electric energy meter and be connected respectively to Error Calculator by the pulse delivery outlet of school single-phase electric energy meter;

PC is connected with Error Calculator, for the work of departure counter;

PC is connected with man-machine interaction touch-screen, for absorbing and processing the input message of man-machine interactive touch screen and show calibration result;

PC is connected with data outputting module, for data output and calibration result, prints.

The principle of work of this device is:

Client, by after in a slotting gauge stand that is positioned over this device prompting by school single-phase electric energy meter, reads by the bar code of school electric energy meter, if read failure, points out client undesirable by the electric energy meter in school; Read successfully transparent mechanical protective cover self-closed table meter, unit automatic connection table meter voltage, current return and pulse terminals automatically connect, take out stitches; Client can be by starting and calibrate for error after man-machine interaction touch-screen selection load current point, the voltage that device all can regulate by the program control single-phase power of the detection software control source output amplitude in PC and phase place, current signal are to single-phase standard electric energy meter with by school single-phase electric energy meter, single-phase standard electric energy meter and the pulse under various different loads is input to Error Calculator by school single-phase electric energy meter, Error Calculator is by relatively calculating by school single-phase electric energy meter error amount; Also can select look-up table meter whether to have other tests of shunt running, after the off-test of various selections, touch-screen shows result, and whether prompting prints the test sheet that calibrates for error; This device is last reminds client to take away by school single-phase electric energy meter.

The present invention has the following advantages and good effect:

1. package unit has mechanical protection, human-computer interaction interface, unit automatically connects, takes out stitches;

2. electricity consumption client is under staff or the simple guiding of direction board, and the self-service work that calibrates for error of showing meter, has calibrated rear automatic printing result and related data is uploaded to company database in order to examination and statistical study, simple to operate, easy to use;

3. according to personal inclination and demand to the calibration that exercises supervision of the error of electric energy meter, guaranteed electric energy metrical accurately and fair and just, be conducive to improve electric energy meter metering public credibility in the whole society;

4. when calibrating installation need to be calibrated, a consistent single-phase standard electric energy meter of outward appearance, the mode of connection and single-phase intelligent electric energy meter is positioned over by the position of school electric energy meter, can completes the circular error calibration operation of the device that calibrates for error.

Accompanying drawing explanation

Fig. 1 is the block diagram of this device;

Fig. 2 is the workflow diagram of this method.

Wherein:

10-PC machine;

The program control single-phase power of 20-source,

21-signal source,

22-voltage power amplifier,

23-current power amplifier;

30-standard single-phase electric energy meter;

The 40-unit that automatically connects, takes out stitches;

50-is by school single-phase electric energy meter;

60-Error Calculator;

70-man-machine interaction touch-screen;

80-data outputting module;

V-pressure-wire;

I-electric current line.

Embodiment

Below in conjunction with drawings and Examples, describe in detail:

One, device

1, overall

As Fig. 1, this device comprises target---by school single-phase electric energy meter 50;

Be provided with PC 10, program control single-phase power source 20, standard single-phase electric energy meter 30, the unit 40 that automatically connects, takes out stitches, Error Calculator 60, man-machine interaction touch-screen 70 and data outputting module 80;

Program control single-phase phase power source 20 is comprised of signal source 21, voltage power amplifier 22 and current power amplifier 23;

The annexation of this device is:

PC 10 is connected with signal source 21 by RS-232 interface; Signal source 21 output terminals connect respectively the input end of voltage power amplifier 22 and current power amplifier 23; The output terminal of voltage power amplifier 22 is by the voltage circuit of pressure-wire V parallel join to standard single-phase electric energy meter 30 and the unit 40 that automatically connects, takes out stitches; The output terminal of current power amplifier 23 is by the electric current line I current return to a standard single-phase electric energy meter 30 and the unit 40 that automatically connects, takes out stitches connected in series;

Automatically the unit 40 that connects, takes out stitches is connected to one by the voltage of school single-phase electric energy meter 50, current return;

Standard single-phase electric energy meter 30 and be connected respectively to Error Calculator 60 by the pulse delivery outlet of school single-phase electric energy meter 50;

PC 10 is connected with Error Calculator 60, for the work of departure counter 60;

PC 10 is connected with man-machine interaction touch-screen 70, for absorbing and processing the input message of man-machine interactive touch screen 70 and show calibration result;

PC 10 is connected with data outputting module 80, for data output and calibration result, prints.

The basic technical indicator of this device is as follows:

1. accuracy: ± 0.2%;

2. degree of stability: be better than ± 0.05%/150s;

3. degree of distortion: the load of be better than ± 0.3%(full linear);

4. voltage range: 220V;

5. current range: 0.1A~100A;

3. electric current, voltage-regulation scope: 0~120% ratings;

4. output frequency: 45Hz~65Hz;

5. phase shift range: 0~360 °.

2, functional block

1) PC 10

PC 10 is a kind of conventional personal computers, and its hardware configuration is mainstream configuration, and the special-purpose PC software that calibrates for error is installed.Apparatus system software workflow figure is shown in Fig. 2.

2) program control single-phase power source 20

Program control single-phase power source 20 consists of signal source 21, voltage power amplifier 22 and current power amplifier 23, and signal source 21 is connected with current power amplifier 23 with voltage power amplifier 22 respectively; There is standard listing product.

Program control single-phase power source 20 possesses RS-232 communication interface, can export the sine wave signal of low distortion, can realize the independent adjustment of free voltage, electric current, phase place.

Program control single-phase power source 20 can be split type, can be also integral structure.

1) signal source 21

Signal source 21 is a kind of conventional derived digital signals, and directly output single-phase voltage and single-phase current, realize the independent adjustment of free voltage, electric current, phase place by RS-232 communication interface.

2) voltage power amplifier 22

Voltage power amplifier 22 is that the ac voltage signal of signal source 21 outputs is carried out to power amplification, to meet the requirement of single-phase power source output power.Its principle of work is to utilize the Current Control effect of triode or the Control of Voltage effect of field effect transistor that the power of input signal is amplified.

3) current power amplifier 23

Current power amplifier 23 is that the ac current signal of signal source 21 outputs is carried out to power amplification, to meet the requirement of single-phase power source output power.Its principle of work is with voltage power amplifier 22.

3) standard single-phase electric energy meter 30

Standard single-phase electric energy meter has standard listing product.

Standard single-phase electric energy meter 30 be take built-in microprocessor as core, by measuring unit and data processing unit etc., formed, the relative calibrated meter of its class of accuracy to exceed two grades and more than.

4) unit 40 automatically connects, takes out stitches

Automatically the unit 40 that connects, takes out stitches is to be automatically connected to the product generally being adopted by the domestic electric energy meter calibrating apparatus manufacturer of school single-phase electric energy meter 50 terminals.Automatically the unit connection device base that connects, takes out stitches is provided with test probe group, and the position of test probe group is corresponding with the calibrating position of connection box of electric energy meter terminal hole group to be checked on meter containing installation.In the connection terminal hole group of the test probe group access electric energy meter of calibrating installation, the voltage of connection box of electric energy meter terminal, electric current, pulse wiring, versatile interface, 485 interfaces respectively with the crimping of external tapping phase, all connection box of electric energy meter terminals are pressed, do not inside contract, and connection terminal Compression Stability, even, reliable.

5) by school single-phase electric energy meter 50

By school single-phase electric energy meter 50, are targets of the present invention, take built-in microprocessor as core, by measuring unit and data processing unit etc., formed, except the forward and reverse active energy of metering, also there are the two or more functions such as timesharing, step price, and can show, storage of electrical energy value.

6) Error Calculator 60

Error Calculator has standard listing product.

Error Calculator 60 be used for inputting standard single-phase electric energy meter 30 and by school single-phase electric energy meter 50 pulse value under various different loads, by relatively calculating by the error amount of school single-phase electric energy meter 50.

7) man-machine interaction touch-screen 70

Man-machine interaction touch-screen 70 is for receiving the induction type liquid crystal indicator of the input signal of human finger, and when the graphic button on screen is touched, the haptic feedback system on screen is according to the unit of the formula drive unit of programming in advance.Touch-screen has standard listing product.

8) data outputting module 80

Data outputting module 80 adopts General miniature printer for computer to complete the printing of calibration result.General miniature printer for computer has standard listing product.

Two, method

This method is to utilize the calibrate for error error calibrating method of device of self-service single-phase electric energy meter, as Fig. 2, comprises the following steps:

Start 0;

1. self-service material loading 1, client will be positioned over by school single-phase electric energy meter 50 in the slotting gauge stand of this device prompting;

2. judging by the bar code of school single-phase electric energy meter 50 whether read 2, is to enter step 3., otherwise jumps to 7. voice message 7 of step;

3. mechanical protection and automatic connection 3, be that transparent mechanical protective cover self-closed is by school single-phase electric energy meter 50, automatically connecing, take out stitches unit 40 from being dynamically connected by electric energy meter 50 voltages, current return and the pulse terminals in school, is electric shock-prevention safety and the needs that make to calibrate for error and carry out smoothly;

4. automatically determine calibration program 4, client selects load current point or startup, shunt running to test by man-machine interaction touch-screen 70;

5. calibrate for error 5, after client's startup calibrates for error, the voltage that device all can regulate by the program control single-phase power of detection software control source 20 output amplitudes in PC 10 and phase place, current signal are to single-phase standard electric energy meter 30 with by school single-phase electric energy meter 50, the single-phase standard electric energy meter 30 and pulse under various different loads is input to Error Calculator 60 by school single-phase electric energy meter 50, Error Calculator 60 is by relatively calculating by school single-phase electric energy meter error amount; Comprise whether table meter has other processs of the test of shunt running;

6. error result shows and automatic clearing 6, after the off-test of various selections, and touch-screen 70 display error results, the unit 40 that connects, takes out stitches disconnects and automatically by whole connections of the electric energy meter 50 in school;

7. voice message 7, and whether the prompting client end that calibrates for error, need to print the test sheet that calibrates for error, and takes away by school single-phase electric energy meter 50; Or prompting client is undesirable by the electric energy meter 50 in school, avoid wrong or mischief-making generation;

8. self-service blanking 8, client takes away by school single-phase electric energy meter 50 in the slotting gauge stand of this device;

9. printout result also uploads 9, and data outputting module 80 prints by customer requirement the test sheet that calibrates for error, and PC 10 is saved in the detailed process calibrating for error and result database and uploads, and is convenient to searching and managing;

Finish 10.

Claims (2)

1. the self-service single-phase electric energy meter device that calibrates for error, comprises by school single-phase electric energy meter (50);
It is characterized in that:
Be provided with PC (10), program control single-phase power source (20), standard single-phase electric energy meter (30), the unit (40) that automatically connects, takes out stitches, Error Calculator (60), man-machine interaction touch-screen (70) and data outputting module (80);
Program control single-phase phase power source (20) is comprised of signal source (21), voltage power amplifier (22) and current power amplifier (23);
Its annexation is:
PC (10) is connected with signal source (21) by RS-232 interface; Signal source (21) output terminal connects respectively the input end of voltage power amplifier (22) and current power amplifier (23); The output terminal of voltage power amplifier (22) is by the voltage circuit of pressure-wire (V) parallel join to standard single-phase electric energy meter (30) and unit (40) that automatically connect, take out stitches; The output terminal of current power amplifier (23) is by electric current line (I) current return to a standard single-phase electric energy meter (30) and unit (40) that automatically connect, take out stitches connected in series;
Automatically the unit (40) that connects, takes out stitches is connected to one by the voltage of school single-phase electric energy meter (50), current return;
Standard single-phase electric energy meter (30) and be connected respectively to Error Calculator (60) by the pulse delivery outlet of school single-phase electric energy meter (50);
PC (10) is connected with Error Calculator (60), for the work of departure counter (60);
PC (10) is connected with man-machine interaction touch-screen (70), for absorbing and processing the input message of man-machine interactive touch screen (70) and show calibration result;
PC (10) is connected with data outputting module (80), for data output and calibration result, prints.
2. utilize the calibrate for error error calibrating method of device of self-service single-phase electric energy meter described in claim 1, it is characterized in that:
Start (0);
1. self-service material loading (1), client will be positioned in the slotting gauge stand of this device prompting by school single-phase electric energy meter (50);
2. judging by the bar code of school single-phase electric energy meter (50) whether read (2), is to enter step 3., otherwise jumps to 7. voice message of step (7);
3. mechanical protection and automatic connection (3), be that transparent mechanical protective cover self-closed is by school single-phase electric energy meter (50), automatically the unit (40) that connects, takes out stitches is dynamically connected certainly by the electric energy meter in school (50) voltage, current return and pulse terminals, is electric shock-prevention safety and the needs that make to calibrate for error and carry out smoothly;
4. automatically determine calibration program (4), client selects load current point or startup, shunt running to test by man-machine interaction touch-screen (70);
5. (5) calibrate for error, after client's startup calibrates for error, the voltage that device all can regulate by the program control single-phase power of detection software control source (20) output amplitude in PC (10) and phase place, current signal are to single-phase standard electric energy meter (30) with by school single-phase electric energy meter (50), single-phase standard electric energy meter (30) and the pulse under various different loads is input to Error Calculator (60) by school single-phase electric energy meter (50), Error Calculator 60 is by relatively calculating by school single-phase electric energy meter error amount; Comprise whether table meter has other processs of the test of shunt running;
6. error result shows and automatic clearing (6), after the off-test of various selections, and touch-screen (70) display error result, the unit (40) that connects, takes out stitches disconnects and automatically by whole connections of the electric energy meter in school (50);
7. voice message (7), whether the prompting client end that calibrates for error, need to print the test sheet that calibrates for error, and takes away by school single-phase electric energy meter (50); Or prompting client is undesirable by the electric energy meter in school (50), avoid wrong or mischief-making generation;
8. self-service blanking (8), client takes away by school single-phase electric energy meter (50) in the slotting gauge stand of this device;
9. printout result is also uploaded (9), and data outputting module (80) prints by customer requirement the test sheet that calibrates for error, and PC (10) is saved in the detailed process calibrating for error and result database and uploads, and is convenient to searching and managing;
Finish (10).
CN201410166668.3A 2014-04-24 2014-04-24 Self-service single-phase electric energy meter calibrates for error devices and methods therefor CN103926553B (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104076322A (en) * 2014-07-24 2014-10-01 黑龙江省电工仪器仪表工程技术研究中心有限公司 Single-phase or three-phase electric energy meter constant magnetic field affection test device
CN105445693A (en) * 2016-01-25 2016-03-30 云南电网有限责任公司电力科学研究院 Digital electricity meter calibration method and device
CN105652231A (en) * 2015-12-28 2016-06-08 云南电网有限责任公司电力科学研究院 Electric energy meter calibration system and calibration method thereof
CN105842648A (en) * 2016-01-21 2016-08-10 贵州电网有限责任公司遵义供电局 Self-service comparison service terminal for single-phase energy meter and comparison and re-check method
CN105911509A (en) * 2016-05-27 2016-08-31 国网天津市电力公司 Rapid batch watt-hour meter starting test device pulse alignment control module
CN106054107A (en) * 2016-05-27 2016-10-26 国网天津市电力公司 Fast batch electric energy meter false actuation test device pulse alignment control module
CN106054109A (en) * 2016-05-27 2016-10-26 国网天津市电力公司 Fast and batched electric energy meter start-up test method
CN106093828A (en) * 2016-05-27 2016-11-09 国网天津市电力公司 Rapid batch Basic Error of Energy Meter test calibration method

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US20050071106A1 (en) * 2001-02-23 2005-03-31 Power Measurement, Ltd. Expandable intelligent electronic device
CN102062849A (en) * 2010-11-25 2011-05-18 深圳市科陆电子科技股份有限公司 Calibrating device and method for DC electric energy meter
CN102081152A (en) * 2010-11-25 2011-06-01 深圳市科陆电子科技股份有限公司 Calibration device and method for out-of-band accessory direct-current electric energy meter
CN202770986U (en) * 2012-05-25 2013-03-06 海盐新跃电器有限公司 Portable field test device of high voltage electric energy meter

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US20050071106A1 (en) * 2001-02-23 2005-03-31 Power Measurement, Ltd. Expandable intelligent electronic device
US20040113096A1 (en) * 2002-12-12 2004-06-17 Yokogawa Electric Corporation Detector calibration method and power measurement instruments using the method
CN102062849A (en) * 2010-11-25 2011-05-18 深圳市科陆电子科技股份有限公司 Calibrating device and method for DC electric energy meter
CN102081152A (en) * 2010-11-25 2011-06-01 深圳市科陆电子科技股份有限公司 Calibration device and method for out-of-band accessory direct-current electric energy meter
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104076322A (en) * 2014-07-24 2014-10-01 黑龙江省电工仪器仪表工程技术研究中心有限公司 Single-phase or three-phase electric energy meter constant magnetic field affection test device
CN105652231A (en) * 2015-12-28 2016-06-08 云南电网有限责任公司电力科学研究院 Electric energy meter calibration system and calibration method thereof
CN105842648A (en) * 2016-01-21 2016-08-10 贵州电网有限责任公司遵义供电局 Self-service comparison service terminal for single-phase energy meter and comparison and re-check method
CN105445693A (en) * 2016-01-25 2016-03-30 云南电网有限责任公司电力科学研究院 Digital electricity meter calibration method and device
CN105911509A (en) * 2016-05-27 2016-08-31 国网天津市电力公司 Rapid batch watt-hour meter starting test device pulse alignment control module
CN106054107A (en) * 2016-05-27 2016-10-26 国网天津市电力公司 Fast batch electric energy meter false actuation test device pulse alignment control module
CN106054109A (en) * 2016-05-27 2016-10-26 国网天津市电力公司 Fast and batched electric energy meter start-up test method
CN106093828A (en) * 2016-05-27 2016-11-09 国网天津市电力公司 Rapid batch Basic Error of Energy Meter test calibration method

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