CN105911509A - Rapid batch watt-hour meter starting test device pulse alignment control module - Google Patents
Rapid batch watt-hour meter starting test device pulse alignment control module Download PDFInfo
- Publication number
- CN105911509A CN105911509A CN201610361940.2A CN201610361940A CN105911509A CN 105911509 A CN105911509 A CN 105911509A CN 201610361940 A CN201610361940 A CN 201610361940A CN 105911509 A CN105911509 A CN 105911509A
- Authority
- CN
- China
- Prior art keywords
- electric energy
- energy meter
- pulse
- test
- current
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Individual Semiconductor Devices (AREA)
Abstract
The invention relates to a rapid batch watt-hour meter starting test device pulse alignment control module. After target power consumption (1500J, 2100J, 2400J, 2700J) is achieved by using a large current to pass through the front part of energy, the large current is switched back to the original current (I<Q>=0.005I<b>) in order to reduce the time. By compressing the before-test waiting time and the test time of batch watt-hour meter starting test, the efficiency of batch watt-hour meter calibration is improved effectively. The method can be applied to the calibration systems of various manual or automatic power metering devices, is conductive to further improving the intelligent watt-hour meter calibration scheme and meeting the meter using demand of power supply units, and improves the level of metering calibration device calibration management.
Description
Technical field
The invention belongs to electric energy metrical FIELD OF THE INVENTIONThe, especially a kind of rapid batch electric energy meter starting test device pulse alignment controls
Module.
Background technology
Electric energy meter is under a kind of measurement rated voltage, the measurement instrument of the time-varying power over time integration passed through.
Starting test is the accuracy test of electric energy meter.Relative method is generally used to carry out the accuracy test of electric energy meter, i.e. by power
Source carries equal-wattage to standard scale and tested table, Error Calculator receive standard scale and the output pulse of tested table and calculate quilt
The relative error of inspection table.Standard scale and tested table the most nominally meter constant (umber of pulse often exported by 1kWh electric energy),
The meter constant K of standard scale is thought during measurementsIt is actual value, and the meter constant K of tested tablemIt it is nominal value.KsMuch larger than Km。
Same electric energy meter KmBeing definite value, therefore the biggest pulse frequency of bearing power is the highest, pulse spacing TpThe least.
Electric energy meter starting test method is: under starting power, at the time T of regulationstartInside detect that pulse output is qualified.
Starting power is the least, therefore TstartThe longest, usually more than 10min.This experiment detects that pulse can terminate, and can't detect pulse
Then test period must reach Tstart.The time occurred due to first pulse of tested table has randomness, when the tested table of same batch
When quantity is more than 30, waiting time TwMore than 0.9TstartProbability be up to 0.96.
Along with carrying out of Guo Wang company low-voltage collecting meter reading engineering, change the outfit intelligent meter in high volume, and then causes intelligent meter calibration operation amount acute
Increase.In order to complete verification task, the wilderness demand of reply intelligent meter, the present invention proposes rapid batch electric energy meter starting test dress
Put pulse alignment control module, by reducing the time of electric energy meter accuracy test, improve electric energy meter detection efficiency.
Summary of the invention
In place of it is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of rational in infrastructure, esy to use, safe and reliable,
Put forward high efficiency rapid batch electric energy meter starting test device pulse alignment control module.
The present invention solves it and technical problem is that and take techniques below scheme to realize:
A kind of rapid batch electric energy meter starting test device pulse alignment control module, it is characterised in that:
The outfan of alternating current power supply connects power-supply controller of electric, and the outfan of power-supply controller of electric connects tested electric energy meter to tested electric energy meter
Power supply, tested electric energy meter connects a pulse signal capture module, during the output of this pulse signal capture module/output port connects
Centre controller, flows to central controller by the pulse signal captured, and, central controller sends signal and controls pulse letter
The work of number capture module；
One outfan of central controller connects power-supply controller of electric, the work of regulation and control power-supply controller of electric；
Tested electric energy meter is also simultaneously connected with voltage sample module and current sample module, current sample module and voltage sample module
Outfan be all connected to one and take advantage of the input with circuit to be transferred to take advantage of and circuit by current sample result and voltage sample result, should
Taking advantage of the outfan with circuit to connect the input of reference circuit, the outfan of reference circuit connects central controller；
One output/output port of central controller connects high-speed, high precision timer, carries out data interchange；
One input connection standard source table of central controller；
Electric energy meter starting test calibrating time testing program in batches:
Use larger current by forward part energy, respectively reach target power consumption 1500J, 2100J, 2400J, 2700J it
After, then switch to primary current IQ=0.005Ib。
And, the electric energy consumed between two adjacent pulses of tested table is that a definite value is designated as E, under certain value voltage U, makes
Use larger current ImBy time T1, reach target power consumption E1；Afterwards under fixed value voltage U, switch to test standard
Electric current IQ, by time T2, reach remainder power consumption E2, and remember under fixed value voltage U, reach electric energy E value,
Being required through the standard time in pulse spacing is TQ, then have E=E1+E2=U Im·T1+U·IQ·T2, TP=T1+T2,
Make E=0.9E, E=0.1E, Im=0.1Ib。
Then can pass through E1=U Im·T1, E=E1+E2=U Im·T1+U·IQ·T2And TP=T1+T2,
Calculate to obtain T1≈0.45*T2,Tp≈1.45*T2<<Tq≈10*T2。
And, concretely comprise the following steps:
(1) by installing enumerator on standard scale；
(2) the calibrating of batch electric energy meter starting test, calculates under certain value voltage U, uses larger current Im to pass through time T1,
When reaching target power consumption E1, obtain the umber of pulse about Ks1 that standard scale is exported in electric energy E1 value；
(3) batch electric energy meter false actuation test calibrating, under certain value voltage U, uses larger current Im by tested table and standard scale；
(4) batch Basic Error of Energy Meter test calibrating, when rolling counters forward arrives umber of pulse Ks1, under certain value voltage U,
Switch to test standard electric current IQ, until tested table sends pulse；
(5) calibrating terminates: carry out verification result judgement, it is judged that for "Yes" then off-test；Judged result is that "No" is then tested
Do not terminate, then repeat step (1) to step (4) until calibrating terminate.
Advantages of the present invention and good effect be:
The present invention, by being compressed waiting time and test period before the test of batch electric energy meter starting test, is effectively improved
Batch electric energy meter calibration efficiency.And the method can be applicable to all kinds of artificial and verification system of automatization's electric power meter,
Be conducive to improving intelligent electric energy meter calibrating scheme further and meeting power supply unit table demand, improve metering and calibrating device calibrating
Management level.
Accompanying drawing explanation
Fig. 1 is chopped pulse separation standard time TQTheory diagram；
Fig. 2 is electric energy meter accuracy test control principle drawing.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings and by specific embodiment, and following example are illustrative, no
It is determinate, it is impossible to limit protection scope of the present invention with this.
A kind of rapid batch electric energy meter starting test device pulse alignment control module, during this control module chopped pulse separation standard
Between TQTheory diagram as it is shown in figure 1,
The outfan of alternating current power supply connects power-supply controller of electric, and the outfan that power supply controls connects tested electric energy meter and supplies to tested electric energy meter
Electricity, tested electric energy meter connects a pulse signal capture module, and the output of this pulse signal capture module/output port connects central authorities
Controller, flows to central controller by the pulse signal captured, and, central controller sends signal control wave
The work of capture module；
One outfan of central controller connects power-supply controller of electric, the work of regulation and control power-supply controller of electric；
Tested electric energy meter is also simultaneously connected with voltage sample module and current sample module, current sample module and voltage sample module
Outfan be all connected to one and take advantage of the input with circuit to be transferred to take advantage of and circuit by current sample result and voltage sample result, should
Taking advantage of the outfan with circuit to connect the input of reference circuit, the outfan of reference circuit connects central controller；
One output/output port of central controller connects high-speed, high precision timer, carries out data interchange；
One input connection standard source table of central controller.
Electric energy meter starting test calibrating time testing program in batches:
Being drawn by vertification regulation, the former starting time need to be about 10.9min, is designated as TQ, logical 0.005I under 220V voltageb(about
For 0.025A) second pulse detected at the appointed time, then ammeter is qualified.The meter constant C of ammeter is
1200imp/KW h, the electric energy consumed between i.e. two adjacent pulses is Δ E=1/1200KW h (3000J).Due to electric current
The least, the time of second pulse appearance is longer, causes detection efficiency the highest.
Imagination uses larger current by forward part energy, reaches target power consumption (1500J, 2100J, 2400J, 2700J)
Afterwards, then switch to primary current (IQ=0.005Ib), to reach the purpose of minimizing time.
In theory, the method is feasible, according to previous verifying process flow, it would be desirable to calibrating 3000J energy, after improvement
Only needing to detect (1500J, 900J, 600J, 300J) energy, under equal-wattage, the calibrating time is greatly shortened, and without prejudice to
The theoretical basis of experiment, but simultaneously the most also need amendment calibrating article, i.e. amendment test experiments fiducial time.
Such as can make E=0.9E, E=0.1E, Im=0.1Ib。
Then can pass through E1=U Im·T1, E=E1+E2=U Im·T1+U·IQ·T2And TP=T1+T2,
Calculate to obtain T1≈0.45*T2,Tp≈1.45*T2<<Tq≈10*T2。
The time occurred due to first pulse of tested table has randomness, when same batch tested table quantity is more than 30, waits
The time Tw probability more than 0.9Tstart is up to 0.96.T1 ＜ TW can be realized.
By installing enumerator on standard scale, obtain the umber of pulse about Ks1 that standard scale is exported in electric energy E1 value.By making
By larger current by forward part energy, when pulse approximate number Ks1 remembered by enumerator, it is achieved time timing target, switch tested
Table passes through electric current IQ=0.005Ib, reaches to count purpose.Thus reach to realize reduction batch electric energy meter starting test calibrating time Tq
Target with calibrating waiting time Tw.And then reach the purpose of reduction batch electric energy meter starting test calibrating time..
Concretely comprise the following steps:
(1) by installing enumerator on standard scale；
(2) the calibrating of batch electric energy meter starting test, calculates under certain value voltage U, uses larger current Im to pass through time T1,
When reaching target power consumption E1, obtain the umber of pulse about Ks1 that standard scale is exported in electric energy E1 value；
(3) batch electric energy meter false actuation test calibrating, under certain value voltage U, uses larger current Im by tested table and standard scale；
(4) batch Basic Error of Energy Meter test calibrating, when rolling counters forward arrives umber of pulse Ks1, under certain value voltage U,
Switch to test standard electric current IQ, until tested table sends pulse；
(5) calibrating terminates: carry out verification result judgement, it is judged that for "Yes" then off-test；Judged result is that "No" is then tested
Do not terminate, then repeat step (1) to step (4) until calibrating terminate.
Ultimate principle
The accuracy test of electric energy meter generally uses relative method to carry out the accuracy test of electric energy meter, i.e. by power source to standard scale and
Tested table conveying equal-wattage, is received the output pulse of standard scale and tested table by Error Calculator and calculates the relative mistake of tested table
Difference.Standard scale and tested table the most nominally meter constant (umber of pulse often exported by 1kWh electric energy), think mark during measurement
The meter constant K of quasi-tablesIt is actual value, and the meter constant K of tested tablemIt it is nominal value.KsMuch larger than Km.Same type electricity
Can table KmOf substantially equal, therefore the biggest pulse frequency of bearing power is the highest, and interpulse period is the least.
The time occurred due to first pulse of tested table has randomness, and when same batch tested table quantity is more than 30, note waits
Time is Tw.Then theory analysis shows, TwProbability more than 0.9 is up to 0.96.The most general Tw＞ 0.9.
The electric energy consumed between two adjacent pulses of tested table is a definite value, is designated as E.Imagination, under certain value voltage U, uses
Larger current ImBy time T1, reach target power consumption E1；Afterwards under fixed value voltage U, switch to test standard electricity
Stream IQ, by time T2, reach remainder power consumption E2.And remember under fixed value voltage U, reach electric energy E value, institute
Need to be T by the standard time in pulse spacingQ。
Then there is E=E1+E2=U Im·T1+U·IQ·T2, TP=T1+T2。
Wherein, E1And ImIt is independent variable, T can be obtained by the two value1, E2And IQIt is independent variable, can by the two value
Obtain T2.And then available interpulse period.Work as Im＞ IQTime, then there is TP＜ TQ, thus reach to reduce pulse spacing standard
Time TQTarget.And then by controlling IQValue, can realize T1＜ TW。
Such as make Im=20IQ, E1=0.9E, E2=0.1E.
Then can pass through E1=U Im·T1, E=E1+E2=U Im·T1+U·IQ·T2And TP=T1+T2,
Calculate to obtain T1≈0.45·T2, ≈ 1.45*T2<<TQ≈10*T2,T1＜ TW。
Due to KsMuch larger than Km, then the pulse spacing of standard scale is understood much smaller than TQ.By installing enumerator on standard scale,
Obtain the umber of pulse about K that standard scale is exported in electric energy E1 values1.By using larger current by forward part energy, work as meter
Pulse approximate number K remembered by number devices1Time, switch tested table and pass through electric current, reach to count purpose.
Although disclosing embodiments of the invention and accompanying drawing for the purpose of illustration, but it will be appreciated by those skilled in the art that: not
Departing from the spirit and scope of the present invention, various replacements, to change and modifications be all possible, therefore, and the scope of the present invention not office
It is limited to embodiment and accompanying drawing disclosure of that.
Claims (3)
1. a rapid batch electric energy meter starting test device pulse alignment control module, it is characterised in that:
The outfan of alternating current power supply connects power-supply controller of electric, and the outfan of power-supply controller of electric connects tested electric energy meter to tested electric energy meter
Power supply, tested electric energy meter connects a pulse signal capture module, during the output of this pulse signal capture module/output port connects
Centre controller, flows to central controller by the pulse signal captured, and, central controller sends signal and controls pulse letter
The work of number capture module；
One outfan of central controller connects power-supply controller of electric, the work of regulation and control power-supply controller of electric；
Tested electric energy meter is also simultaneously connected with voltage sample module and current sample module, current sample module and voltage sample module
Outfan be all connected to one and take advantage of the input with circuit to be transferred to take advantage of and circuit by current sample result and voltage sample result, should
Taking advantage of the outfan with circuit to connect the input of reference circuit, the outfan of reference circuit connects central controller；
One output/output port of central controller connects high-speed, high precision timer, carries out data interchange；
One input connection standard source table of central controller；
Electric energy meter starting test calibrating time testing program in batches:
Use larger current by forward part energy, respectively reach target power consumption 1500J, 2100J, 2400J, 2700J it
After, then switch to primary current IQ=0.005Ib。
Rapid batch electric energy meter starting test device pulse the most according to claim 1 alignment control module, it is characterised in that:
The electric energy consumed between two adjacent pulses of tested table is that a definite value is designated as E, under certain value voltage U, uses larger current
ImBy time T1, reach target power consumption E1；Afterwards under fixed value voltage U, switch to test standard electric current IQ, pass through
Time T2, reach remainder power consumption E2, and remember under fixed value voltage U, reach electric energy E value, be required through pulse
The separation standard time is TQ, then have E=E1+E2=U Im·T1+U·IQ·T2, TP=T1+T2,
Make E=0.9E, E=0.1E, Im=0.1Ib。
Then can pass through E1=U Im·T1, E=E1+E2=U Im·T1+U·IQ·T2And TP=T1+T2,
Calculate to obtain T1≈0.45*T2,Tp≈1.45*T2<<Tq≈10*T2。
Rapid batch electric energy meter starting test device pulse the most according to claim 1 alignment control module, it is characterised in that:
Concretely comprise the following steps:
(1) by installing enumerator on standard scale；
(2) the calibrating of batch electric energy meter starting test, calculates under certain value voltage U, uses larger current Im to pass through time T1,
When reaching target power consumption E1, obtain the umber of pulse about Ks1 that standard scale is exported in electric energy E1 value；
(3) batch electric energy meter false actuation test calibrating, under certain value voltage U, uses larger current Im by tested table and standard scale；
(4) batch Basic Error of Energy Meter test calibrating, when rolling counters forward arrives umber of pulse Ks1, under certain value voltage U,
Switch to test standard electric current IQ, until tested table sends pulse；
(5) calibrating terminates: carry out verification result judgement, it is judged that for "Yes" then off-test；Judged result is that "No" is then tested
Do not terminate, then repeat step (1) to step (4) until calibrating terminate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610361940.2A CN105911509A (en) | 2016-05-27 | 2016-05-27 | Rapid batch watt-hour meter starting test device pulse alignment control module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610361940.2A CN105911509A (en) | 2016-05-27 | 2016-05-27 | Rapid batch watt-hour meter starting test device pulse alignment control module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105911509A true CN105911509A (en) | 2016-08-31 |
Family
ID=56742368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610361940.2A Pending CN105911509A (en) | 2016-05-27 | 2016-05-27 | Rapid batch watt-hour meter starting test device pulse alignment control module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105911509A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133569A (en) * | 2019-05-28 | 2019-08-16 | 国网河北省电力有限公司邢台供电分公司 | Electric energy meter calibration method and device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0420545A2 (en) * | 1989-09-25 | 1991-04-03 | General Electric Company | Electronic watthour meter |
| JPH0850938A (en) * | 1994-08-08 | 1996-02-20 | Nippon Denki Keiki Kenteishiyo | Connection installation for electrical equipment |
| CN102087352A (en) * | 2011-01-31 | 2011-06-08 | 浙江省电力公司 | Three-phase intelligent watt-hour meter inspection device and method |
| CN103630871A (en) * | 2013-12-09 | 2014-03-12 | 国家电网公司 | Testing device for dynamic characteristics of electronic energy meter |
| CN203572959U (en) * | 2013-12-09 | 2014-04-30 | 国家电网公司 | Electronic electric energy meter dynamic characteristic testing device |
| CN103926553A (en) * | 2014-04-24 | 2014-07-16 | 国家电网公司 | Self-service single-phase electric energy meter error calibration device and method |
| JP2015010983A (en) * | 2013-07-01 | 2015-01-19 | 日置電機株式会社 | Impedance measurement device |
| CN104808168A (en) * | 2015-03-25 | 2015-07-29 | 广州市格宁电气有限公司 | Rapid electric energy meter verification method based on segmented current technology |
-
2016
- 2016-05-27 CN CN201610361940.2A patent/CN105911509A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0420545A2 (en) * | 1989-09-25 | 1991-04-03 | General Electric Company | Electronic watthour meter |
| JPH0850938A (en) * | 1994-08-08 | 1996-02-20 | Nippon Denki Keiki Kenteishiyo | Connection installation for electrical equipment |
| CN102087352A (en) * | 2011-01-31 | 2011-06-08 | 浙江省电力公司 | Three-phase intelligent watt-hour meter inspection device and method |
| JP2015010983A (en) * | 2013-07-01 | 2015-01-19 | 日置電機株式会社 | Impedance measurement device |
| CN103630871A (en) * | 2013-12-09 | 2014-03-12 | 国家电网公司 | Testing device for dynamic characteristics of electronic energy meter |
| CN203572959U (en) * | 2013-12-09 | 2014-04-30 | 国家电网公司 | Electronic electric energy meter dynamic characteristic testing device |
| CN103926553A (en) * | 2014-04-24 | 2014-07-16 | 国家电网公司 | Self-service single-phase electric energy meter error calibration device and method |
| CN104808168A (en) * | 2015-03-25 | 2015-07-29 | 广州市格宁电气有限公司 | Rapid electric energy meter verification method based on segmented current technology |
Non-Patent Citations (1)
| Title |
|---|
| 周伟伟: "基于CANBUS的多工位智能电能表校表装置设计与实现", 《中国优秀硕士学位论文全文数据库·工程科技Ⅱ辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133569A (en) * | 2019-05-28 | 2019-08-16 | 国网河北省电力有限公司邢台供电分公司 | Electric energy meter calibration method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106093831A (en) | Rapid batch electric energy meter false actuation test method | |
| CN103033738B (en) | A kind of Automatic test system for circuit board | |
| CN106054107A (en) | Fast batch electric energy meter false actuation test device pulse alignment control module | |
| CN102967841B (en) | Automatic digital multimeter verification system and method based on meter and source integration | |
| CN104808168A (en) | Rapid electric energy meter verification method based on segmented current technology | |
| EP2032997A2 (en) | Configurable electronic controller for capacitance measurements | |
| AU2014101602A4 (en) | A circuit and method for self-detecting of controller of diesel locomotive | |
| CN104090258B (en) | Micro-electric energy control device | |
| CN103616560A (en) | Automatic power consumption parameter testing device and method applied to avionics device | |
| CN108333448A (en) | Transformer routine test comprehensive test device | |
| CN106093828A (en) | Rapid batch Basic Error of Energy Meter test calibration method | |
| CN105467355A (en) | Automatic testing method of electric energy meter and automatic testing device of same | |
| CN104820143B (en) | The automatic testing method and system of distribution power automation terminal | |
| CN105911509A (en) | Rapid batch watt-hour meter starting test device pulse alignment control module | |
| CN205374637U (en) | Switching on and shutting down testing arrangement | |
| CN105954703A (en) | Large-scale rapid batch and single phase electric meter automatic detection system and method | |
| CN105911510A (en) | Micro power control device and micro power control method based on high-frequency pulse of standard watt-hour meter | |
| CN203241490U (en) | Intelligent temperature rise testing system used for electrical products | |
| CN207457381U (en) | A kind of signal processing module overall checkout equipment | |
| CN107966657A (en) | Relay checking instrument free of demolition and method of calibration based on arm chips | |
| CN201673224U (en) | Intelligent surface-mounted optical coupling tester | |
| CN204389602U (en) | Battery balanced module automatic checkout system | |
| CN204314679U (en) | A kind of fault routing inspection circuit exported for many power sources in parallel | |
| CN203084104U (en) | OTP burning and upper/lower-limit voltage detecting system of liquid crystal display module | |
| CN106093827A (en) | A kind of extensive rapid batch three-phase electric energy meter automatic calibration system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160831 |
|
| RJ01 | Rejection of invention patent application after publication |