CN107064852A - A kind of adjusting process of single-phase intelligent electric energy meter measuring accuracy - Google Patents
A kind of adjusting process of single-phase intelligent electric energy meter measuring accuracy Download PDFInfo
- Publication number
- CN107064852A CN107064852A CN201710108752.3A CN201710108752A CN107064852A CN 107064852 A CN107064852 A CN 107064852A CN 201710108752 A CN201710108752 A CN 201710108752A CN 107064852 A CN107064852 A CN 107064852A
- Authority
- CN
- China
- Prior art keywords
- adjustment
- mileometer adjustment
- treat
- mileometer
- active power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
Abstract
The invention discloses a kind of adjusting process of single-phase intelligent electric energy meter measuring accuracy, control command is issued by host computer, corresponding actions and information gathering are ordered and complete by testing stage body, standard scale and treating that mileometer adjustment is received, it is last by treating that mileometer adjustment collects and the offset of basic point, angular difference point and power bias point is calculated according to the requirement of the model of self-metering chip, automatically write in the corresponding registers for treating mileometer adjustment computation chip, complete to treat the automatic correction of mileometer adjustment.Whole process is in addition to mileometer adjustment button is manually started, all instructions and action are all automatic progress, with reference to the adjustment mode of active power, substantially increase the correction efficiency for treating mileometer adjustment, shorten the adjustment time, calibration procedures are simplified, the adjustment degree of accuracy is high, meets the fast tuning needs before enterprise dispatches from the factory to each single-phase intelligent electric energy meter.
Description
Technical field
It is more particularly to a kind of that single-phase intelligent electric energy meter is carried out using 3 power methods the present invention relates to a kind of adjusting process
Measuring accuracy is automatic, efficient adjustment method.
Background technology
The accuracy of measuring is one of the most key index of single-phase intelligent electric energy meter, and the quality of the accuracy of measuring is directly affected
To the height of electric energy metrical process loss, also it is related to the operation benefits and quantity of operation of power grid operation unit.
In existing single-phase intelligent electric energy meter, the degree of accuracy can be posted by changing the calibration parameter of computation chip in electric energy meter
Storage value is corrected, to compensate the error in dipping caused by the reasons such as processing technology, power supply stability.Calibration parameter register
Device includes：Power gain correcting register GPQ, phasing register Phs and active power offset register Poffset.With
It is that three adjustment test points of single-phase intelligent electric energy meter are that three registers are corresponding：Basic point, angular difference point and power bias point.
Traditional measuring accuracy of electric energy meter carries out the adjustment of above three test point using the electric flux theory of error, i.e. by being treated
Mileometer adjustment three test points active power to the electric flux standard error after time integral, the correction for calculating each test point is mended
Value is repaid, offset correspondence write-in is treated in three corresponding registers of mileometer adjustment, the adjustment of single-phase intelligent electric energy meter is completed.
The adjustment order of three adjustment test points is followed successively by：
Test point 1：Basic point（Input condition：Rated current Ib, rated voltage Un, powerfactorcosφ=1.0）；
Test point 2：Angular difference point（Input condition：Rated current Ib, rated voltage Un, powerfactorcosφ=0.5L）；
Test point 3：Power bias point（Input condition：5% rated current Ib, rated voltage Un, powerfactorcosφ=1.0）.
When being tested with the method each test point, not only need to manually adjust test environment, change electric current, voltage
Size, and the time to be calculated need to be waited longer, total process about expends 20 to obtaining the standard error of electric flux after time integral
Minute, calibration speed has been had a strong impact on, the production capacity of enterprise is reduced.
How to improve this case, calibration speed is improved, with regard to as problem to be solved by this invention.
The content of the invention
In view of above-mentioned the deficiencies in the prior art, the present invention is intended to provide a kind of utilize 3 power methods to single-phase intelligent electric energy
Table progress measuring accuracy is automatic, efficient adjustment method, i.e., using the active power of standard scale as standard, passes through relatively more each test point
The difference power between mileometer adjustment and standard scale is treated, the active power gain of mileometer adjustment, the phase difference of voltage and current signal, wattful power is treated
Rate direct current is biased into capable correction, to improve adjustment speed and adjusting accuracy, meets enterprise and efficiently produces needs.
The active power of single-phase intelligent electric energy meter is expressed as：
For voltage and the phase difference of current signal, according to this method can not direct adjustment treat the voltage and electric current of mileometer adjustment, and
It is adjustment active power, completes the efficient calibration of single-phase intelligent electric energy meter.
The present invention is achieved through the following technical solutions：
A kind of adjusting process of single-phase intelligent electric energy meter measuring accuracy, specific steps include：
Step 1, by host computer respectively with standard scale, treat mileometer adjustment and with pressure regulation adjust stream function test stage body by communicate connect
Mouthful connection, test stage body is respectively with standard scale and treating that mileometer adjustment is electrically connected.
Step 2, host computer treat mileometer adjustment and issue initialization command, treat mileometer adjustment by the power gain school in self-metering chip
Positive register, phasing register and active power bias correction register are reset respectively.
Step 3, the basic point progress adjustment for treating mileometer adjustment.
Step 3-1, host computer issue control command to test stage body, and test stage body carries out boosting up-flow action, reached automatically
To the basic point test environment for treating mileometer adjustment.
Step 3-2, host computer issue sample command, host computer to standard scale, treat mileometer adjustment to itself while carrying out basic point
Active power sampling, the sampling time be 10 seconds, sampling interval duration be 300 milliseconds.
After step 3-3, sampling stop, host computer calculates the sample mean P of standard scale basic point active powerMark, and
It is issued to and treats in mileometer adjustment, treats that mileometer adjustment combines collection, calculates the average value P of itself obtained basic point active powerTable, obtain basic
Point active power difference PDifferenceFor：, and then obtain treating the relative error of mileometer adjustment basic point active power：
Step 3-4, treat that mileometer adjustment is calculated according to the relative error of basic point active power and the specifications and models of self-metering chip
Go out the power gain value to be compensated, in the power gain correcting register for writing self-metering chip, mileometer adjustment basic point is treated in completion
Correction.
Step 4, the angular difference point progress adjustment for treating mileometer adjustment.
Step 4-1, host computer issue control command to test stage body, and test stage body carries out boosting up-flow action, reached automatically
To the test environment for treating mileometer adjustment angular difference point.
Step 4-2, host computer issue sample command, host computer to standard scale, treat mileometer adjustment to itself while carrying out angular difference point
Active power sampling, the sampling time be 10 seconds, sampling interval duration be 300 milliseconds.
After step 4-3, sampling stop, host computer calculates the sample mean P of standard scale angular difference point active powerMark angle, and
It is issued to and treats in mileometer adjustment, treats that mileometer adjustment combines collection, calculates the average value P of obtained itself angular difference point active powerTable angle, obtain angle
Not good enough active power difference PDeclinateFor：。
Step 4-4, treat difference P of the mileometer adjustment according to angular difference point active powerDeclinateAnd the specifications and models meter of self-metering chip
The phasing offset to be compensated is calculated, in the phasing register for writing self-metering chip, mileometer adjustment angular difference is treated in completion
Point calibration.
Step 5, the power bias point progress adjustment for treating mileometer adjustment.
Step 5-1, host computer issue control command to test stage body, and test stage body carries out boosting up-flow action, reached automatically
To the test environment for treating mileometer adjustment power bias point.
Step 5-2, host computer issue sample command, host computer to standard scale, treat mileometer adjustment to itself while to carry out power inclined
Active power sampling a little is put, the sampling time is 10 seconds, and sampling interval duration is 300 milliseconds.
After step 5-3, sampling stop, host computer calculates the active power sample mean of standard scale power bias point
PMark is inclined, and be issued to and treat in mileometer adjustment, treat that mileometer adjustment combines collection, calculates obtained own power bias point active power mean value
PTable is inclined, obtain the active power difference P of the power bias pointIt is poor inclinedFor：。
Step 5-4, treat active power difference P of the mileometer adjustment according to power bias pointIt is poor inclinedAnd the specification type of self-metering chip
Number calculate the active power bias correction offset to be compensated, the active power bias correction deposit of write-in self-metering chip
In device, complete to treat the power bias point calibration of mileometer adjustment.
Step 6, remove and treat mileometer adjustment, treat mileometer adjustment correction completion.
A kind of adjusting process of single-phase intelligent electric energy meter measuring accuracy, can also carry out tune repeatedly more than twice to step 4
School.
A kind of adjusting process of single-phase intelligent electric energy meter measuring accuracy, according to the low current disturbed condition of circuit design, also
Adjustment repeatedly more than twice can be carried out to step 5.
A kind of adjusting process of single-phase intelligent electric energy meter measuring accuracy of the present invention, it issues control command by host computer,
By test stage body, standard scale and treat mileometer adjustment receive order and complete corresponding actions and information gathering, finally by treating that mileometer adjustment collects
And the offset of three test points is calculated according to the requirement of the model of self-metering chip, the corresponding of mileometer adjustment computation chip is treated in write-in
In register, complete to treat the automatic correction of mileometer adjustment.Whole process is in addition to mileometer adjustment button is manually started, and all instructions and action are all
For automatic progress, with reference to the adjustment mode of active power, the correction efficiency for treating mileometer adjustment is substantially increased, the adjustment time is shortened,
Calibration procedures are simplified, the adjustment degree of accuracy is high, meeting the fast tuning before enterprise dispatches from the factory to each single-phase intelligent electric energy meter needs
Will.
Embodiment
Below exemplified by treating mileometer adjustment computation chip for 8209, to a kind of single-phase intelligent electric energy meter measuring accuracy of the present invention
Adjusting process be described in further detail, specific steps include：
Step 1, by host computer respectively with standard scale, treat mileometer adjustment and with pressure regulation adjust stream function test stage body by communicate connect
Mouthful connection, test stage body is respectively with standard scale and treating that mileometer adjustment is electrically connected.
The host computer of interconnection, standard scale, treat that mileometer adjustment and test stage body together constitute automatic information collecting, a number
According to the test environment automatically processed, eliminating later stage test process needs artificial adjusting parameter and the process of line, is the later stage
Treat that the automatic correction of mileometer adjustment is provided to ensure.
Step 2, host computer treat mileometer adjustment and issue initialization command, treat that mileometer adjustment increases the power in self-metering chip 8209
Beneficial correcting register GPQ, phasing register Phs and active power bias correction register Poffset are reset respectively.
Wherein, power gain correcting register GPQ, phasing register Phs and active power bias correction register
Poffset corresponds respectively to treat three adjustment test points of mileometer adjustment：Basic point, angular difference point and power bias point.By to this three
The adjustment of individual test point, so that it may complete to treat the correction of dispatching from the factory of mileometer adjustment.
Step 3, the basic point progress adjustment for treating mileometer adjustment：
Step 3-1, host computer issue control command to test stage body, and test stage body carries out boosting up-flow action, reaches and treat automatically
The basic point test environment of mileometer adjustment.
Step 3-2, host computer issue sample command, host computer to standard scale, treat mileometer adjustment to itself while carrying out basic point
Active power sampling, the sampling time be 10 seconds, sampling interval duration be 300 milliseconds.
After step 3-3, sampling stop, host computer calculates the sample mean P of standard scale basic point active powerMark, and
It is issued to and treats in mileometer adjustment, treats that mileometer adjustment combines collection, calculates the average value P of itself obtained basic point active powerTable, calculate
Itself basic point active power difference PDifferenceFor：, and then obtain treating that the relative of mileometer adjustment basic point active power is missed
Difference：
Step 3-4, mileometer adjustment is treated according to the relative error of basic point active power and the specifications and models of self-metering chip 8209,
Pass through formula：
The power gain value to be compensated is calculated, and is write in the power gain correcting register for treating mileometer adjustment self-metering chip,
The basic point calibration of mileometer adjustment is treated in completion.
Step 4, the angular difference point progress adjustment for treating mileometer adjustment：
Step 4-1, host computer issue control command to test stage body, and test stage body carries out boosting up-flow action, reaches and treat automatically
The test environment of mileometer adjustment angular difference point.
Step 4-2, host computer issue sample command, host computer to standard scale, treat mileometer adjustment to itself while carrying out angular difference point
Active power sampling, the sampling time be 10 seconds, sampling interval duration be 300 milliseconds.
After step 4-3, sampling stop, host computer calculates the sample mean P of standard scale angular difference point active powerMark angle, and
It is issued to and treats in mileometer adjustment, treats that mileometer adjustment combines collection, calculates the average value P of obtained itself angular difference point active powerTable angle, calculate
Go out to treat mileometer adjustment angular difference point active power difference PDeclinateFor：。
Step 4-4, treat difference P of the mileometer adjustment according to angular difference point active powerDeclinateAnd the specification type of self-metering chip 8209
Number, according to formula：
The phasing offset to be compensated is calculated, the phasing register of mileometer adjustment self-metering chip 8209 is treated in write-in
In, mileometer adjustment angular difference point calibration is treated in completion.
Step 5, the power bias point progress adjustment for treating mileometer adjustment：
Step 5-1, host computer issue control command to test stage body, and test stage body carries out boosting up-flow action, reaches and treat automatically
The test environment of mileometer adjustment power bias point.
Step 5-2, host computer issue sample command, host computer to standard scale, treat mileometer adjustment to itself while to carry out power inclined
Active power sampling a little is put, the sampling time is 10 seconds, and sampling interval duration is 300 milliseconds.
After step 5-3, sampling stop, host computer calculates the active power sample mean of standard scale power bias point
PMark is inclined, and be issued to and treat in mileometer adjustment, treat that mileometer adjustment combines collection, calculates the average value for the active power for obtaining own power bias point
PTable is inclined, calculate the active power difference P for treating mileometer adjustment power bias pointIt is poor inclinedFor：。
Step 5-4, treat active power difference P of the mileometer adjustment according to power bias pointIt is poor inclinedAnd the rule of self-metering chip 8209
Lattice number, according to formula：
The active power bias correction offset to be compensated is calculated, the active power of mileometer adjustment self-metering chip 8209 is treated in write-in
In bias correction register, complete to treat the power bias point calibration of mileometer adjustment.
Step 6, remove and treat mileometer adjustment, one is treated mileometer adjustment correction completion.
The whole adjustment time was shortened to by original 20 minutes and only needed 5 minutes, is greatlyd save the adjustment time, is met list
The measuring requirement that phase intelligent electric energy meter dispatches from the factory, it is ensured that production efficiency.
Certainly, to ensure adjustment quality, above-mentioned steps 4 and step 5 can also be improved by adjustment repeatedly more than twice
The adjustment degree of accuracy, to ensure the adjusting accuracy that dispatches from the factory of electric energy meter, meets use needs of the every profession and trade to electric energy meter.
Claims (3)
1. a kind of adjusting process of single-phase intelligent electric energy meter measuring accuracy, it is characterised in that specific steps include：
Step 1, by host computer respectively with standard scale, treat mileometer adjustment and with pressure regulation adjust stream function test stage body by communicate connect
Mouthful connection, test stage body is respectively with standard scale and treating that mileometer adjustment is electrically connected；
Step 2, host computer treat mileometer adjustment and issue initialization command, treat that the power gain correction in self-metering chip is posted in mileometer adjustment
Storage, phasing register and active power bias correction register are reset respectively；
Step 3, the basic point progress adjustment for treating mileometer adjustment：
Step 3-1, host computer issue control command to test stage body, and test stage body carries out boosting up-flow action, reaches and treat automatically
The basic point test environment of mileometer adjustment；
Step 3-2, host computer issue sample command, host computer to standard scale, treat mileometer adjustment to itself while carrying out basic point has
Work(power samples, the sampling time is 10 seconds, and sampling interval duration is 300 milliseconds；
After step 3-3, sampling stop, host computer calculates the sample mean P of standard scale basic point active powerMark, and issue
To treating in mileometer adjustment, treat that mileometer adjustment combines collection, calculates the average value P of itself obtained basic point active powerTable, obtaining basic point has
Work(power difference PDifferenceFor：, and then obtain treating the relative error of mileometer adjustment basic point active power：
Step 3-4, treat that mileometer adjustment is calculated according to the relative error of basic point active power and the specifications and models of self-metering chip
Go out the power gain value to be compensated, in the power gain correcting register for writing self-metering chip, mileometer adjustment basic point is treated in completion
Correction；
Step 4, the angular difference point progress adjustment for treating mileometer adjustment：
Step 4-1, host computer issue control command to test stage body, and test stage body carries out boosting up-flow action, reaches and treat automatically
The test environment of mileometer adjustment angular difference point；
Step 4-2, host computer issue sample command, host computer to standard scale, treat mileometer adjustment to itself while carrying out angular difference point has
Work(power samples, the sampling time is 10 seconds, and sampling interval duration is 300 milliseconds；
After step 4-3, sampling stop, host computer calculates the sample mean P of standard scale angular difference point active powerMark angle, and issue
To treating in mileometer adjustment, treat that mileometer adjustment combines collection, calculates the average value P of obtained itself angular difference point active powerTable angle, obtain angular difference point
Active power difference PDeclinateFor：
Step 4-4, treat difference P of the mileometer adjustment according to angular difference point active powerDeclinateAnd the specifications and models of self-metering chip are calculated
In the phasing offset to be compensated, the phasing register for writing self-metering chip, mileometer adjustment angular difference point school is treated in completion
Just；
Step 5, the power bias point progress adjustment for treating mileometer adjustment：
Step 5-1, host computer issue control command to test stage body, and test stage body carries out boosting up-flow action, reaches and treat automatically
The test environment of mileometer adjustment power bias point；
Step 5-2, host computer issue sample command, host computer to standard scale, treat mileometer adjustment to itself while carrying out power bias point
Active power sampling, the sampling time be 10 seconds, sampling interval duration be 300 milliseconds；
After step 5-3, sampling stop, host computer calculates the active power sample mean P of standard scale power bias pointMark is inclined, and
It is issued to and treats in mileometer adjustment, treats that mileometer adjustment combines collection, calculates obtained own power bias point active power mean value PTable is inclined, obtain
The active power difference P of the power bias pointIt is poor inclinedFor：；
Step 5-4, treat active power difference P of the mileometer adjustment according to power bias pointIt is poor inclinedAnd the specifications and models meter of self-metering chip
The active power bias correction offset to be compensated is calculated, the active power bias correction register of self-metering chip is write
In, complete to treat the power bias point calibration of mileometer adjustment；
Step 6, remove and treat mileometer adjustment, treat mileometer adjustment correction completion.
2. the adjusting process of a kind of single-phase intelligent electric energy meter measuring accuracy according to claim 1, it is characterised in that may be used also
Adjustment repeatedly more than twice is carried out to step 4.
3. a kind of adjusting process of single-phase intelligent electric energy meter measuring accuracy according to claim 1 or 2, it is characterised in that
According to the low current disturbed condition of circuit design, adjustment repeatedly more than twice can be also carried out to step 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710108752.3A CN107064852A (en) | 2017-02-27 | 2017-02-27 | A kind of adjusting process of single-phase intelligent electric energy meter measuring accuracy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710108752.3A CN107064852A (en) | 2017-02-27 | 2017-02-27 | A kind of adjusting process of single-phase intelligent electric energy meter measuring accuracy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107064852A true CN107064852A (en) | 2017-08-18 |
Family
ID=59621341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710108752.3A Pending CN107064852A (en) | 2017-02-27 | 2017-02-27 | A kind of adjusting process of single-phase intelligent electric energy meter measuring accuracy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107064852A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562864A (en) * | 2018-02-27 | 2018-09-21 | 杭州海兴电力科技股份有限公司 | The method that single-point power method calibrates electric energy meter error |
| CN109061546A (en) * | 2018-09-28 | 2018-12-21 | 广东雅达电子股份有限公司 | A kind of auto-adjustment device and method for electronic electric energy meter |
| CN109738849A (en) * | 2019-03-08 | 2019-05-10 | 威胜集团有限公司 | Universal quick calibration method for single-phase electric energy meter |
| 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 |
| CN113820652A (en) * | 2021-11-18 | 2021-12-21 | 青岛鼎信通讯股份有限公司 | Sampling phase alignment and calibration method applied to standard electric energy meter |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520386A (en) * | 2011-12-12 | 2012-06-27 | 宁夏隆基宁光仪表有限公司 | Calibration method of three-phase electric energy meter |
| CN104360303A (en) * | 2014-11-04 | 2015-02-18 | 江阴长仪集团有限公司 | Method for verifying self-calibration error along with voltage fluctuation on basis of intelligent ammeters |
| US20150120230A1 (en) * | 2007-03-27 | 2015-04-30 | Electro Industries/Gauge Tech | Intelligent electronic device with broad-range high accuracy |
| CN105242233A (en) * | 2015-10-21 | 2016-01-13 | 宁波三星医疗电气股份有限公司 | Fast calibration method of single-phase electric energy meter |
| US9250308B2 (en) * | 2011-06-03 | 2016-02-02 | Veris Industries, Llc | Simplified energy meter configuration |
| CN106154206A (en) * | 2016-06-20 | 2016-11-23 | 华立科技股份有限公司 | Electric energy meter error bearing calibration |
| CN106324554A (en) * | 2016-10-18 | 2017-01-11 | 宁波三星医疗电气股份有限公司 | Method for testing electric energy meter with error self-checking function |
-
2017
- 2017-02-27 CN CN201710108752.3A patent/CN107064852A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150120230A1 (en) * | 2007-03-27 | 2015-04-30 | Electro Industries/Gauge Tech | Intelligent electronic device with broad-range high accuracy |
| US9250308B2 (en) * | 2011-06-03 | 2016-02-02 | Veris Industries, Llc | Simplified energy meter configuration |
| CN102520386A (en) * | 2011-12-12 | 2012-06-27 | 宁夏隆基宁光仪表有限公司 | Calibration method of three-phase electric energy meter |
| CN104360303A (en) * | 2014-11-04 | 2015-02-18 | 江阴长仪集团有限公司 | Method for verifying self-calibration error along with voltage fluctuation on basis of intelligent ammeters |
| CN105242233A (en) * | 2015-10-21 | 2016-01-13 | 宁波三星医疗电气股份有限公司 | Fast calibration method of single-phase electric energy meter |
| CN106154206A (en) * | 2016-06-20 | 2016-11-23 | 华立科技股份有限公司 | Electric energy meter error bearing calibration |
| CN106324554A (en) * | 2016-10-18 | 2017-01-11 | 宁波三星医疗电气股份有限公司 | Method for testing electric energy meter with error self-checking function |
Non-Patent Citations (4)
| Title |
|---|
| 冯占岭 等: "《数字电压表的电气性能测试》", 28 February 1986 * |
| 孟双侠 等: "影响单相智能电能表校验效率的因素及改进措施", 《淮北职业技术学院学报》 * |
| 张健 等: "一种小模拟量输入电能表检定装置的研制", 《江苏电机工程》 * |
| 陈颖新: "三相多功能电能表软件自动校表***设计", 《机电技术》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562864A (en) * | 2018-02-27 | 2018-09-21 | 杭州海兴电力科技股份有限公司 | The method that single-point power method calibrates electric energy meter error |
| CN109061546A (en) * | 2018-09-28 | 2018-12-21 | 广东雅达电子股份有限公司 | A kind of auto-adjustment device and method for electronic electric energy meter |
| CN109738849A (en) * | 2019-03-08 | 2019-05-10 | 威胜集团有限公司 | Universal quick calibration method for single-phase electric energy meter |
| 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 |
| CN113820652A (en) * | 2021-11-18 | 2021-12-21 | 青岛鼎信通讯股份有限公司 | Sampling phase alignment and calibration method applied to standard electric energy meter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107064852A (en) | A kind of adjusting process of single-phase intelligent electric energy meter measuring accuracy | |
| CN105242233B (en) | A kind of quick correction method of single-phase electric energy meter | |
| CN202196119U (en) | Single-phase multifunctional electric energy metering circuit | |
| CN102590784B (en) | Single-phase intelligent energy meter distributed correction method | |
| CN104143961B (en) | A kind of constant-temperature crystal oscillator transmitting frequency calibration method, apparatus and system | |
| CN104914304B (en) | Electric energy accurate measurement method and metering device under a kind of fluctuating load | |
| CN103885026B (en) | Electric energy meter calibrating method | |
| CN102520386B (en) | Calibration method of three-phase electric energy meter | |
| CN102680936A (en) | Simple and convenient autonomic and automatic meter adjustment method | |
| CN101629994B (en) | Method for automatically calibrating terminal in batch | |
| CN109738849A (en) | Universal quick calibration method for single-phase electric energy meter | |
| CN108012401A (en) | RF impedance matching process, adaptation and semiconductor processing device | |
| CN106130495A (en) | A kind of collection of simulant signal system and acquisition method | |
| CN207396562U (en) | A kind of correction compensation circuit for improving AFE(analog front end) precision | |
| CN104808736B (en) | A kind of compensation method of pwm voltage | |
| CN109557496A (en) | A kind of correction method of electric energy meter | |
| CN113064114A (en) | High-precision quick meter calibration method for multi-core electric energy meter | |
| WO2024083271A1 (en) | Stm32-based hall phase calibration method and apparatus | |
| CN111896909B (en) | Electric energy meter error correction method and device | |
| CN204679550U (en) | Electric energy accurate measuring device under a kind of fluctuating load | |
| CN104714203A (en) | Calibration method for power quality monitoring device | |
| CN109100672A (en) | Adjusting system and adjusting method of voltage and current sampling module suitable for non-invasive load monitoring | |
| CN207424736U (en) | A kind of system of automatic calibrating clock frequency | |
| CN116231810A (en) | Big data-based battery equalization cooperative control method and device | |
| CN106842109A (en) | Electric energy reading socket means for correcting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170818 |
|
| RJ01 | Rejection of invention patent application after publication |