CN201438214U - Multi-meter parallel testing system for testing kilowatt-hour meters - Google Patents
Multi-meter parallel testing system for testing kilowatt-hour meters Download PDFInfo
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- CN201438214U CN201438214U CN2009200609955U CN200920060995U CN201438214U CN 201438214 U CN201438214 U CN 201438214U CN 2009200609955 U CN2009200609955 U CN 2009200609955U CN 200920060995 U CN200920060995 U CN 200920060995U CN 201438214 U CN201438214 U CN 201438214U
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Abstract
The utility model discloses a multi-meter parallel testing system for testing kilowatt-hour meters, which comprises a computer and at least two sets of kilowatt-hour meter testing station units, and the kilowatt-hour meter testing station units form a testing flow line, and are respectively independently connected with the computer. Each kilowatt-hour meter testing station unit is an automatic electromechanical module. Each kilowatt-hour meter testing station unit in the system is provided with an independent standard power source, i.e., the system adopts a one-meter-one-source mode to test kilowatt-hour meters, the testing operations of the stations are independent from each other, not affecting each other, and consequently, all the tested kilowatt-hour meters can simultaneously or non-simultaneously operate under different load conditions.
Description
Technical field
The utility model relates to a kind of calibrator for watt-hour meter, relates in particular to a kind of parallel verifying attachment of multilist that is used for test of kilo watthour meter.
Background technology
Along with improving constantly of Chinese society economic development and living standards of the people, power consumption long-term growth, the use of electric energy meter are also more and more.No matter be new the installation or the maintenance electric energy meter, all need the electric energy metrical performance of electric energy meter is tested that calibrator for watt-hour meter is generally all used in these checks.Because the workload of test of kilo watthour meter is increasing, in order to satisfy the demands, also in continuous development, automaticity is more and more higher for calibrator for watt-hour meter, and epi-position is also more and more, and the electric energy meter number that a common table apparatus is once checked is a hundreds of electric energy meter nearly.
The present multi-epitope electric energy meter verifying attachment that uses, no matter how many epi-positions are arranged, what all adopt is stabilizing power source+standard electric energy meter technology, promptly constitute the single-phase electric energy meter verifying attachment by a single-phase stabilizing power source and a single-phase standard electric energy meter, or form the three-phase electric energy meter verifying attachment by three-phase stabilizing power source and three-phase standard electric energy meter, be also referred to as in table calibration mode.When adopting existing ammeter verifying attachment, connect between the electric energy meter that is verified and between the ammeter that is verified and the standard electric energy meter, promptly electric energy is provided for all tested electric energy meter and standard electric energy meters with a stabilizing power source, all tested electric energy meters are operated under the same load condition simultaneously, this moment, the current return of all tested electric energy meters was connected, the voltage circuit parallel connection, to guarantee that all tested electric energy meters all are in identical electric energy measurement environment with standard electric energy meter, the electric energy that all tested electric energy meters are measured is all compared with the electric energy that same standard electric energy meter is measured.But the subject matter that existing this electric energy meter serial verifying attachment exists in actual use is: the isolation of a. epi-position causes verify error: because the reason of the outlet of electric energy meter design, the voltage of each epi-position or electric current and other epi-position are kept apart, and isolation can bring additional verify error.B. reliability is low: because electric energy meter serial verifying attachment is to adopt the serial method of inspection to test, the dependability problem of bringing easily, for example the output of the electric current and voltage of stabilizing power source is broken down in verifying attachment, perhaps some tested electric energy meter current return generation open faults, perhaps standard electric energy meter breaks down, and then all tested electric energy meters all can not be worked or can't be tested.C. efficient is low: because electric energy meter serial verifying attachment is in when work, because asynchronous the causing of clock of each tested electric energy meter, the switchable load working point can produce the more stand-by period together.And under the operating mode of little electric current, the checkability of electric energy meter is lower.As adjusting or revise to indivedual electric energy meters of disqualified upon inspection are online, there is big problem especially, waste several times proving time.
The utility model content
The purpose of this utility model provides a kind of parallel verifying attachment of multilist that is used for test of kilo watthour meter.
The purpose of this utility model realizes by following technical measures: a kind of parallel verifying attachment of multilist that is used for test of kilo watthour meter, comprise computing machine, it is characterized in that, also comprise at least two cover test of kilo watthour meter station unit, the check streamline is formed in described test of kilo watthour meter station unit, described each test of kilo watthour meter station unit respectively with the computing machine separate connection.
Described test of kilo watthour meter station unit pack including rack and the separate standards power source that is connected with computing machine, be that the utility model adopts table one a source side formula and performing check electric energy meter, the work for inspection of each station is separate, be independent of each other, all tested electric energy meters whiles or non-while work under different load conditions.
Test of kilo watthour meter station of the present utility model unit adopts the network communications technology to be connected with computing machine.Wherein preferred Ethernet mode connects, the check software multithreading work of computing machine, and by the verification scheme of selecting, by the station signal that receives successively, order is sent check command, and the collaborative work of commander's streamline.
The utlity model has following feature: described frame is provided with horizontal table, on the horizontal table both sides longitudinal delivery mechanism is set, the longitudinal delivery mechanism of each test of kilo watthour meter station unit is docking together, be used for carrying electric energy meter to be measured, constitute streamline from electric energy meter to be measured to test of kilo watthour meter station unit that carry to test of kilo watthour meter station unit.
The utility model also has following feature: cross drive mechanism is set on horizontal table, and the connecting gear on both sides docks on this cross drive mechanism and the test of kilo watthour meter station unit horizontal workplace; Be provided with on each test of kilo watthour meter station unit and connect the table device automatically, this calibration power source that connects table device and this station unit automatically is electrically connected.Each connecting gear with connect the table device automatically and all be connected with computing machine by standard source, and by the computer program-control Control work.Constitute electric energy meter and automatically check streamline.The connecting gear on one side is delivered to each test of kilo watthour meter station unit with electric energy meter to be measured on the test of kilo watthour meter station unit horizontal workplace, by the cross drive mechanism on the station of each test of kilo watthour meter station unit electric energy meter to be measured is pushed to connecing automatically in the table device of each station automatically.Automatically connect the action of table device, after be dynamically connected electric current and voltage input terminal, signal sampling terminal and communication terminal, notice computer starting station calibration power source, automatically carry out the flow process verification by set scheme, after finishing, verification write down, store, transmit check data automatically to computing machine, computing machine connects the table device automatically and discharges connection automatically by going out list procedure control then, is delivered on the connecting gear of station unit another side by the cross drive mechanism on the station unit, and electric energy meter is sent.Meanwhile the calibration power source is sent " free time " signal and is given computing machine and the next electric energy meter to be measured of preparation reception.
Calibration power described in the utility model source is the incorporate interchange standard harmonic power source of program-controlled source table meter, make existing independently power source power supply in each test of kilo watthour meter station unit, also be equivalent to the independent standard electric energy meter and compared, thereby become in source calibration mode in table calibration mode original.
The utility model compared with prior art has the following advantages:
(1) adopt parallel way work between test of kilo watthour meter station of the present utility model unit, and each test of kilo watthour meter station unit adopts table one source, each station unit is independent fully mutually, and work is independent of each other; Eliminate super high power output to the influence of power source degree of stability, reduce verify error, improve testing accuracy.
(2) break down in the calibration power source only influences an epi-position, and tested table generation open fault also only influences an epi-position, the check as usual of other tables, and device reliability significantly improves.
(3) the utility model can time-sharing work, and the device epi-position is many more, and the attaching table stand-by period is few relatively more; Effectively shorten proving time, have only 30% of serial method required time.
(4) owing to be parallel running between each test of kilo watthour meter station unit, each test of kilo watthour meter station unit is separate, and work is independent of each other, and therefore can check the electric energy meter of different amount limits, different constant, different communication protocol simultaneously.
(5) the utility model can also realize that single-phase electric energy meter or three-phase electric energy meter do not take off the check of voltage butt hook.
(6) station unit extensions of the present utility model is very convenient, even can finish at the scene.
Description of drawings
Fig. 1 is the structural representation of the parallel verifying attachment of the multilist that is used for test of kilo watthour meter of the utility model embodiment one;
Fig. 2 is the principle of work synoptic diagram of parallel one of them the station unit of verifying attachment of the multilist that is used for test of kilo watthour meter of the utility model embodiment one;
Fig. 3 is the front elevation of parallel one of them the station unit of verifying attachment of the multilist that is used for test of kilo watthour meter of the utility model embodiment one;
Fig. 4 is the right view of parallel one of them the station unit of verifying attachment of the multilist that is used for test of kilo watthour meter of the utility model embodiment one;
Fig. 5 is the structural representation of the parallel verifying attachment of the multilist that is used for test of kilo watthour meter of the utility model embodiment two.
Embodiment
Embodiment one
The parallel verifying attachment of the multilist that is used for test of kilo watthour meter shown in Fig. 1～2 is an embodiment of the present utility model, and it is connected and composed by a plurality of test of kilo watthour meter station unit and computing machines that are connected in parallel.Only drawn among Fig. 1 three test of kilo watthour meter station unit 11,12,13 of device, do not draw peripherals such as computing machine and electric energy meter Automated Sorting System.Each test of kilo watthour meter station unit is by frame, the program-controlled source table incorporate interchange standard harmonic power source 6 of meter and connect table device 3 (the self-produced product sold of employing our company, application number: CN200820206295.8) constitute automatically.Exchange the inside that standard harmonic power source 6 is installed in frame 9, and be electrically connected, be responsible for the detection of electric energy meter and control the turnover table action of this station unit with the rack-mounted table device 3 that connects automatically.Frame 9 is provided with horizontal table, on the both sides of horizontal table longitudinal delivery mechanism 1,5 is set respectively, be provided for the cross drive mechanism 2 of transmission of electric energy table turnover station unit on horizontal table, the travelling belt of the longitudinal delivery mechanism 1,5 on the travelling belt of this cross drive mechanism 2 and both sides, test of kilo watthour meter station unit is docking together naturally.
Automatically meet table device 3, connecting gear 1,5 and cross drive mechanism 2 and have motor respectively, motor is installed in the frame 9 of this station unit, and by the interchange standard harmonic power source 6 of this station unit by driving circuit and limit circuit control, implement to connect automatically the start and stop concerted action of table device 3, connecting gear 1,5 and cross drive mechanism 2.The only real motor 8 that connects table device 3 automatically and the motor 7 of connecting gear 1 of illustrating among Fig. 3,4.
All be an independently multiple functional electromechanical integration module on the physical construction of the test of kilo watthour meter station unit in the present embodiment and the electrical structure, the connecting gear of each test of kilo watthour meter station unit is docking together naturally, but still works alone separately.100M transfer rate Ethernet mode is adopted in communication between each test of kilo watthour meter station unit and the computing machine.
Fig. 2,3, the 4th, the principle of work three of a test of kilo watthour meter station unit of present embodiment is looked synoptic diagram, three drawn in the drawings electric energy meters, represent electric energy meter respectively in the entering table position, detection position and go out table position of this station, and three electric energy meters are arranged when not representing work simultaneously.
During the station cell operation, computing machine is by advancing 1 work of list procedure control connecting gear, the tested electric energy meter 4 that Automated Sorting System (not drawing among the figure) is sent here is sent to the table position of advancing that illustrates the first station unit 10, limit circuit detect electric energy meter this station advance table position after, driving circuit drives horizontal gear train 2 actions, pushes tested electric energy meter 4 connecing automatically in the table device 3 to this station unit from left to right automatically by the direction of arrow shown in Figure 2.Automatically connect 3 actions of table device then, after be dynamically connected electric current and voltage input terminal, signal sampling terminal and communication terminal, automatically send signal and start this station unit interchange standard harmonic power source 6 to the computing machine notice, automatically carry out the flow process verification by set scheme, automatically write down, store, transmit check data after verification finishes to computing machine, and send " free time " signal and also prepare to accept next detected electric energy meter for computing machine.
Meanwhile, the tested electric energy meter of the second station unit 11, the 3rd station unit 12 and each station unit, back transmits on the travelling belt of connecting gear 1 successively, and order is sent to the second station unit 11, the 3rd station unit 12 and each station unit, back.At this moment, the first station unit 10 is because of existing electric energy meter, its limit circuit can not move, its connecting gear 1 is with a direct acting, other tested table is delivered to the station unit of back, the dress table action of the station unit of back is identical with the 10 dress table actions of the first station unit, and the whole process of all station unit dress tables is finished in proper order by advancing list procedure automatically.
Each module exchanges standard harmonic power source 6 and all adopts the network communications technology and compunication, for example first station interchange standard harmonic power source IP address is 192.168.10.101, it is 192.168.10.102 that second station exchanges standard harmonic power source IP address, by that analogy.Computing machine promptly sends instruction by the verification scheme that chooses after receiving the information that first station address sends, and controls the first station unit and exchanges the standard harmonic power source and begin the inspection table handling of this station.
After the information of sending when each station unit of receiving the second station unit, the 3rd station unit 12 and back, the work of check software multithreading, send instruction in proper order by the verification scheme that chooses, each station unit of controlling the second station unit, the 3rd station unit 12 and back exchanges standard harmonic power source 6 and begins to examine table handling, and this process to the last electric energy meter of a station unit begins till the check.The tested electric energy meter work in all station unit is independent separately, while or non-being operated in simultaneously under the different load state.
After the electric energy meter 4 of the first station unit 10 had inspected, computer check software sent for this station unit and finishes instruction.Under interchange standard harmonic power source 6 controls of the first station unit 10, automatically the table device 3 that connects of the first station unit 10 is controlled by going out list procedure, automatically discharge and connect, laterally gear train 2 actions then, the electric energy meter 4 examined is pushed to from left to right by the diagram direction of arrow on the travelling belt of connecting gear 5 on the right, connecting gear 5 goes out table by the anti-direction of epiphase of advancing with connecting gear 1, sends electric energy meter 4 back to Automated Sorting System, sorts processing according to assay.After the first station unit 10 goes out table, the connecting gear 1 of the first station unit 10 advances a new table list procedure and sends into the first station unit 10 by aforementioned once more, its limit circuit action will newly be shown accurately to be sent to this station and advance table position because of not had electric energy meter in the first station unit 10 this moment.After the second station unit 11, the 3rd station unit 12 and each station test of kilo watthour meter of back are finished, its go out to show operation program and advance to show operation program once more and the situation of the first station unit, 10 turnover tables identical.
Consider when streamline is oversize that the time that electric energy meter transmits is also long on travelling belt, can have influence on the efficient of whole piece streamline.Therefore, maximum 8 the station unit of line of the utility model are set, control 12 lines at most simultaneously, form full-automatic and performing check streamline.If number of computers is not limit, then the flowing water number of lines can be expanded arbitrarily.
Embodiment two:
The parallel verifying attachment of the multilist that is used for test of kilo watthour meter as shown in Figure 5 is another embodiment of the present utility model, and it is connected and composed by six test of kilo watthour meter station unit and computing machines that are connected in parallel.Each test of kilo watthour meter station unit is made of with the incorporate standard harmonic power source 6 that exchanges of program-controlled source table meter frame 9.Exchange the inside that standard harmonic power source 6 is installed in frame 9, adopt the network communications technology and compunication, for example first station interchange standard harmonic power source IP address is 192.168.10.101, and it is 192.168.10.102 that second station exchanges standard harmonic power source IP address, by that analogy.
Each station unit is the same with the conventional serial verifying attachment in the present embodiment, adopt the vertical dress table of manual mode, behind the intact tested table of first station of attaching, can send this station signal by hand and give computing machine, after computing machine is received the information that first station address sends, promptly send instruction, control first station interchange standard harmonic power source, 6 rise electric current and voltages and begin the inspection table handling of this station by the verification scheme that chooses.
Meanwhile, the electric energy meter to be measured of the attaching second station unit and each station unit, back successively, after receiving the preparation checking information of the second station unit and each station unit, back sending when computing machine, the work of check software multithreading, send instruction in proper order by the verification scheme that chooses, control the inspection table handling that each station unit of the second station unit and back exchanges the standard harmonic power source 6 beginning second station unit and each station unit, back, this process to the last electric energy meter of a station begins check.All tested electric energy meter work are independent separately, while or non-being operated in simultaneously under the different load state.
After the first station electric energy meter all items had inspected, counter control software sent instruction, fell the electric current and voltage output that this station unit exchanges standard harmonic power source 6 automatically, and this station unit pilot lamp is bright, and prompting operation person can change table.At this moment, can pull down the electric energy meter that first station has been examined, load onto new table by hand and begin check once more, this disassembly process can not influence the just electric energy meter in checkout procedure of back station.
Claims (7)
1. parallel verifying attachment of the multilist that is used for test of kilo watthour meter, comprise computing machine, it is characterized in that, also comprise at least two cover test of kilo watthour meter station unit, the check streamline is formed in described test of kilo watthour meter station unit, described each test of kilo watthour meter station unit respectively with the computing machine separate connection.
2. the parallel verifying attachment of multilist that is used for test of kilo watthour meter according to claim 1 is characterized in that described test of kilo watthour meter station unit adopts the network communications technology to be connected with computing machine.
3. the parallel verifying attachment of multilist that is used for test of kilo watthour meter according to claim 2 is characterized in that described test of kilo watthour meter station unit adopts the Ethernet mode to be connected with computing machine.
4. according to claim 1 or the 2 or 3 described parallel verifying attachments of multilist that are used for test of kilo watthour meter, it is characterized in that described each test of kilo watthour meter station unit pack including rack and the separate standards power source that is connected with computing machine.
5. the parallel verifying attachment of multilist that is used for test of kilo watthour meter according to claim 4, it is characterized in that, described frame is provided with horizontal table, on the horizontal table both sides longitudinal delivery mechanism is set, and the calibration power source of described longitudinal delivery mechanism and this station unit is electrically connected; The longitudinal delivery mechanism of each test of kilo watthour meter station unit is docking together, and constitutes streamline from electric energy meter to be measured to each test of kilo watthour meter station unit that carry.
6. the parallel verifying attachment of multilist that is used for test of kilo watthour meter according to claim 5, it is characterized in that, cross drive mechanism is set on horizontal table, and the connecting gear on both sides docks on this cross drive mechanism and the test of kilo watthour meter station unit horizontal workplace; Be provided with on each test of kilo watthour meter station unit and connect the table device automatically, the described calibration power source that connects table device and this station unit automatically is electrically connected.
7. the parallel verifying attachment of multilist that is used for test of kilo watthour meter according to claim 6 is characterized in that, described calibration power source is the incorporate interchange standard harmonic power source of program-controlled source table meter.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200609955U CN201438214U (en) | 2009-07-22 | 2009-07-22 | Multi-meter parallel testing system for testing kilowatt-hour meters |
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| CN2009200609955U CN201438214U (en) | 2009-07-22 | 2009-07-22 | Multi-meter parallel testing system for testing kilowatt-hour meters |
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| CN201438214U true CN201438214U (en) | 2010-04-14 |
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Cited By (17)
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| CN102156273A (en) * | 2011-04-20 | 2011-08-17 | 郑州万特电气有限公司 | Electric energy meter verification circuit for error test and direct current and even harmonic test |
| CN102353923A (en) * | 2011-06-17 | 2012-02-15 | 杭州炬华科技股份有限公司 | Multi-station parallel test bench for electric energy meter |
| CN102353924A (en) * | 2011-06-17 | 2012-02-15 | 杭州炬华科技股份有限公司 | Parallel meter detection method of electric energy meter |
| CN102506709A (en) * | 2011-10-21 | 2012-06-20 | 深圳市科陆电子科技股份有限公司 | Device and method for detecting overall dimension of intelligent electric energy meter |
| CN103389484A (en) * | 2013-07-17 | 2013-11-13 | 国家电网公司 | Electric energy meter verification system |
| CN103499805A (en) * | 2013-09-25 | 2014-01-08 | 国家电网公司 | Detection device compatible with three-phase intelligent electric energy meter and type-III special transform acquisition terminal |
| CN103558576A (en) * | 2013-10-29 | 2014-02-05 | 国家电网公司 | Method for automatic verification system compatible with three-phase electric energy meters and special transformers III |
| CN103760516A (en) * | 2014-02-19 | 2014-04-30 | 青岛乾程电子科技有限公司 | Multiple-electricity-meter-position communication parallel detection method |
| CN103922083A (en) * | 2014-04-29 | 2014-07-16 | 国家电网公司 | Disqualified electric energy meter caching mechanism and method |
| CN106353711A (en) * | 2016-08-25 | 2017-01-25 | 海盐星创电子有限公司 | Multi-layer energy meter automation detection line |
| CN107607903A (en) * | 2017-09-19 | 2018-01-19 | 珠海格力电器股份有限公司 | The calibration method and device of a kind of electric energy measuring equipment |
| CN109738847A (en) * | 2019-01-25 | 2019-05-10 | 杭州海兴电力科技股份有限公司 | Correction method based on meter active self-correcting |
| CN109738846A (en) * | 2019-01-25 | 2019-05-10 | 杭州海兴电力科技股份有限公司 | A kind of correction method based on meter active self-correcting |
| CN110488217A (en) * | 2019-08-23 | 2019-11-22 | 宁波迦南智能电气股份有限公司 | A kind of mutual detecting method of multilist of electric energy meter measuring accuracy |
| CN113252095A (en) * | 2021-04-30 | 2021-08-13 | 联合汽车电子有限公司 | Method and device for verifying parallel stations by using standard workpiece |
| CN113495246A (en) * | 2020-04-03 | 2021-10-12 | 南京电力自动化设备三厂有限公司 | Electric energy meter checking system and method |
| CN113671437A (en) * | 2021-09-28 | 2021-11-19 | 国网宁夏电力有限公司营销服务中心(国网宁夏电力有限公司计量中心) | Electric energy meter circulation detection device and circulation detection method |
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2009
- 2009-07-22 CN CN2009200609955U patent/CN201438214U/en not_active Expired - Lifetime
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| CN102156273B (en) * | 2011-04-20 | 2012-12-26 | 郑州万特电气有限公司 | Electric energy meter verification circuit for error test and direct current and even harmonic test |
| CN102156273A (en) * | 2011-04-20 | 2011-08-17 | 郑州万特电气有限公司 | Electric energy meter verification circuit for error test and direct current and even harmonic test |
| CN102353923A (en) * | 2011-06-17 | 2012-02-15 | 杭州炬华科技股份有限公司 | Multi-station parallel test bench for electric energy meter |
| CN102353924A (en) * | 2011-06-17 | 2012-02-15 | 杭州炬华科技股份有限公司 | Parallel meter detection method of electric energy meter |
| CN102506709A (en) * | 2011-10-21 | 2012-06-20 | 深圳市科陆电子科技股份有限公司 | Device and method for detecting overall dimension of intelligent electric energy meter |
| CN102506709B (en) * | 2011-10-21 | 2017-04-19 | 深圳市科陆电子科技股份有限公司 | Device and method for detecting overall dimension of intelligent electric energy meter |
| CN103389484A (en) * | 2013-07-17 | 2013-11-13 | 国家电网公司 | Electric energy meter verification system |
| CN103499805B (en) * | 2013-09-25 | 2015-02-25 | 国家电网公司 | Detection device compatible with three-phase intelligent electric energy meter and type-III special transform acquisition terminal |
| CN103499805A (en) * | 2013-09-25 | 2014-01-08 | 国家电网公司 | Detection device compatible with three-phase intelligent electric energy meter and type-III special transform acquisition terminal |
| CN103558576B (en) * | 2013-10-29 | 2016-03-30 | 国家电网公司 | A kind of compatible three-phase electric energy meter and the calibration method specially becoming III automatic calibration system |
| CN103558576A (en) * | 2013-10-29 | 2014-02-05 | 国家电网公司 | Method for automatic verification system compatible with three-phase electric energy meters and special transformers III |
| CN103760516A (en) * | 2014-02-19 | 2014-04-30 | 青岛乾程电子科技有限公司 | Multiple-electricity-meter-position communication parallel detection method |
| CN103760516B (en) * | 2014-02-19 | 2016-05-04 | 青岛乾程科技股份有限公司 | A kind of multi-epitope communication parallel detecting method |
| CN103922083A (en) * | 2014-04-29 | 2014-07-16 | 国家电网公司 | Disqualified electric energy meter caching mechanism and method |
| CN103922083B (en) * | 2014-04-29 | 2015-12-02 | 国家电网公司 | A kind of cache mechanism of electric energy meter off gauge and method |
| CN106353711A (en) * | 2016-08-25 | 2017-01-25 | 海盐星创电子有限公司 | Multi-layer energy meter automation detection line |
| CN107607903A (en) * | 2017-09-19 | 2018-01-19 | 珠海格力电器股份有限公司 | The calibration method and device of a kind of electric energy measuring equipment |
| CN109738846A (en) * | 2019-01-25 | 2019-05-10 | 杭州海兴电力科技股份有限公司 | A kind of correction method based on meter active self-correcting |
| CN109738847A (en) * | 2019-01-25 | 2019-05-10 | 杭州海兴电力科技股份有限公司 | Correction method based on meter active self-correcting |
| CN109738847B (en) * | 2019-01-25 | 2021-02-19 | 杭州海兴电力科技股份有限公司 | Meter calibration method based on meter active self-calibration |
| CN110488217A (en) * | 2019-08-23 | 2019-11-22 | 宁波迦南智能电气股份有限公司 | A kind of mutual detecting method of multilist of electric energy meter measuring accuracy |
| CN110488217B (en) * | 2019-08-23 | 2021-06-22 | 宁波迦南智能电气股份有限公司 | Multi-meter mutual detection method for metering accuracy of electric energy meter |
| CN113495246A (en) * | 2020-04-03 | 2021-10-12 | 南京电力自动化设备三厂有限公司 | Electric energy meter checking system and method |
| CN113252095A (en) * | 2021-04-30 | 2021-08-13 | 联合汽车电子有限公司 | Method and device for verifying parallel stations by using standard workpiece |
| CN113252095B (en) * | 2021-04-30 | 2022-08-12 | 联合汽车电子有限公司 | Method and device for verifying parallel stations by using standard workpiece |
| CN113671437A (en) * | 2021-09-28 | 2021-11-19 | 国网宁夏电力有限公司营销服务中心(国网宁夏电力有限公司计量中心) | Electric energy meter circulation detection device and circulation detection method |
| CN113671437B (en) * | 2021-09-28 | 2024-02-23 | 国网宁夏电力有限公司营销服务中心(国网宁夏电力有限公司计量中心) | Electric energy meter circulation detection device and circulation detection method |
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