CN105223538A - For pick-up unit and the quality control method of electric energy meter automatic Verification streamline - Google Patents
For pick-up unit and the quality control method of electric energy meter automatic Verification streamline Download PDFInfo
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- CN105223538A CN105223538A CN201510774536.3A CN201510774536A CN105223538A CN 105223538 A CN105223538 A CN 105223538A CN 201510774536 A CN201510774536 A CN 201510774536A CN 105223538 A CN105223538 A CN 105223538A
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Abstract
The present invention relates to a kind of pick-up unit for electric energy meter automatic Verification streamline, comprise pallet, it sets firmly support, it is rack-mount that standard verifies device, the left plate of support, right plate offer at least one groove respectively, connection jaws is placed in groove, and the I/O connection terminal that standard verifies device is connected with described connection jaws.The invention also discloses a kind of quality control method of the pick-up unit for electric energy meter automatic Verification streamline.The present invention effectively can solve the calibrating unit problem that whether instrument is working properly under large load operating conditions, without the need to artificial verification, time saving and energy saving; This device can enter streamline when not suspending streamline, the calibrating unit aligned at work detects, determine that whether this calibrating unit function of measuring is working properly, can notify that maintainer processes in time if there is abnormal, guarantee that every data of examining and determine link are accurate, reliable.
Description
Technical field
The present invention relates to automatic calibration system technical field, especially a kind of pick-up unit for electric energy meter automatic Verification streamline and quality control method.
Background technology
Along with the development that intelligent grid is built, domesticly build up multiple single, three-phase electric energy meter automatic calibration streamline, the calibrating of electric energy meter is made to be no longer traditional manual operation, achieve in enormous quantities, the full-automatic calibrating operation of electric energy meter, eliminate the calibrating mass discrepancy that artificial and region factor causes, effectively improve calibrating and provide and deliver work quality efficiency and measurement Management Level.But under the calibrating pattern that this full-automatic prosthetic is intervened, the problem of various electric energy meter automatic Verification streamline also is slowly appeared in one's mind out.
Although electric energy meter automatic Verification streamline can realize large-scale concentrating calibrating, how guaranteeing the accuracy of its verification result under the duty of long-time large load, is the problem being badly in need of paying close attention to.Electric energy meter calibrating apparatus cannot examine self deviation, need surveying instrument to its periodic inspection, guarantee its accuracy, according to measurement Law, electric energy meter belongs to the working measuring instrument of requirement compulsory verification, and the automatic assembly line calibrating installation examining and determine electric energy meter just can be carried out the work after also must pass the qualification exams, the verification technology of the electric energy meter automatic assembly line of current employing is that the manual operation of operative installations tester equipment detects, time and effort consuming, adopts the Automated inspection equipment adapting to pipelining pattern to be problem demanding prompt solution.
Summary of the invention
Primary and foremost purpose of the present invention is to provide one automatically to verify electric energy meter automatic Verification streamline, guarantees the pick-up unit for electric energy meter automatic Verification streamline that its verification result accuracy under long-time large load operating conditions is higher.
For achieving the above object, present invention employs following technical scheme: a kind of pick-up unit for electric energy meter automatic Verification streamline, comprise pallet, it sets firmly support, it is rack-mount that standard verifies device, and the left plate of support, right plate offer at least one groove respectively, and connection jaws is placed in groove, the I/O connection terminal that standard verifies device is connected with described connection jaws, and connection jaws verifies the input/output end port of device as standard.
Also comprise outer cover, external cover is located at standard and verifies on device and to be connected by screw and support, and described support is connected by screw and pallet.
Described pallet is single-phase pallet, left plate, right plate is all offered two grooves, places a connection jaws in each groove.
Described pallet is three-phase pallet, left plate, right plate is all offered a groove, places a connection jaws in each groove.
A described connection jaws comprises two row's interfaces, and wherein, upper row is respectively 2 RS485 communication interfaces, 2 versatile interfaces and 2 pulse output interfaces, and lower row is 2 voltage interface and 2 current interfaces.
Another object of the present invention is to the quality control method providing a kind of pick-up unit for electric energy meter automatic Verification streamline, the method comprises the step of following order:
(1) pick-up unit is proceeded to calibrating unit with streamline supply unit, be connected with calibrating unit by automatic crimping system, by the actual measurement electric energy of calibrating unit compared with the feedback power of pick-up unit, obtain the first relative error
y lab
;
(2) pick-up unit is connected with 0.01 grade of electric energy standard set-up, by the actual measurement electric energy of 0.01 grade of electric energy standard set-up compared with the feedback power of pick-up unit, obtains the second relative error
y ref;
(3) when meeting
time, judge that the calibrating unit of this streamline is qualified, wherein,
u labfor often overlapping the expanded uncertainty that calibrating installation Pre-Evaluation draws; Otherwise, when
time, calibrating installation sends abnormity early warning automatically.
After pick-up unit is proceeded to calibrating unit with streamline supply unit, be connected with calibrating unit by automatic crimping system, the voltage interface of pick-up unit, current interface is made to insert voltage wiring terminal and the current wiring terminal of calibrating unit respectively, pick-up unit feedback voltage, electric current, parameter, power and electric power signal, and by pulse output interface, 485 communication interface input calibrating unit.
Described first relative error
y lab
computing formula as follows:
y lab
×100（1）
In formula,
for examining and determine the actual measurement energy value of unit, namely examine and determine the energy value that in unit, measurement standard electric energy meter is accumulative, its unit is kWh;
for the feedback power value that pick-up unit internal standard verification device calculates, its unit is kWh; First relative error
y lab
unit be %;
Described second relative error
y refcomputing formula as follows:
y ref ×100（2）
In formula,
be the actual measurement energy value of 0.01 grade of electric energy standard set-up, the energy value that namely in 0.01 grade of electric energy standard set-up, measurement standard electric energy meter is accumulative, its unit is kWh;
for the feedback power value that pick-up unit internal standard verification device calculates, its unit is kWh; Second relative error
y refunit be %.
As shown from the above technical solution, advantage of the present invention is as follows: first, the present invention examines and determine accuracy and the stability of the measurement electric energy meter electric energy error of unit by automatic inspection, effectively can solve the calibrating unit problem that whether instrument is working properly under large load operating conditions, without the need to artificial verification, time saving and energy saving; Second, this device can when not suspending streamline, this pick-up unit is utilized to enter streamline together with the common pallet being loaded with electric energy meter, the calibrating unit aligned at work detects, then comparative transmission is adopted, determine that whether this calibrating unit function of measuring is working properly, can notify that maintainer processes in time if there is abnormal, guarantee that every data of examining and determine link are accurate, reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation of this device;
Fig. 2 is the vertical view of this device;
Fig. 3 is the A-A cut-open view of Fig. 2.
Embodiment
A kind of pick-up unit for electric energy meter automatic Verification streamline, comprise pallet 1, it sets firmly support 2, standard is verified device 3 and is arranged on support 2, the left plate of support 2, right plate is offered respectively at least one groove 6, connection jaws 4 is placed in groove 6, the I/O connection terminal that standard verifies device 3 is connected with described connection jaws 4, connection jaws 4 verifies the input/output end port of device 3 as standard, also comprise outer cover 5, outer cover 5 is set in standard and verifies on device and to be connected by screw and support, described support is connected by screw and pallet, as Fig. 1, 2, shown in 3.
As shown in Figure 1, 2, 3, described pallet 1 is single-phase pallet 1, left plate, right plate is all offered two grooves 6, places a connection jaws 4 in each groove 6.Described pallet 1 is three-phase pallet 1, left plate, right plate is all offered a groove 6, places a connection jaws 4 in each groove 6.A described connection jaws 4 comprises two row's interfaces, and wherein, upper row is respectively 2 RS485 communication interfaces, 2 versatile interfaces and 2 pulse output interfaces, and lower row is 2 voltage interface and 2 current interfaces, and connection jaws 4 is here as converting interface.
This method comprises: pick-up unit is proceeded to calibrating unit with streamline supply unit by (1), is connected with calibrating unit by automatic crimping system, by the actual measurement electric energy of calibrating unit compared with the feedback power of pick-up unit, obtains the first relative error
y lab
; (2) pick-up unit is connected with 0.01 grade of electric energy standard set-up, by the actual measurement electric energy of 0.01 grade of electric energy standard set-up compared with the feedback power of pick-up unit, obtains the second relative error
y ref; (3) when meeting
time, judge that the calibrating unit of this streamline is qualified, wherein,
u labfor often overlapping the expanded uncertainty that calibrating installation Pre-Evaluation draws; Otherwise, when
time, calibrating installation sends abnormity early warning information automatically to automatic assembly line Master Control Center, and automatic assembly line Master Control Center is shown by human-computer interaction interface and reports to the police.
After pick-up unit is proceeded to calibrating unit with streamline supply unit, be connected with calibrating unit by automatic crimping system, the voltage interface of pick-up unit, current interface is made to insert voltage wiring terminal and the current wiring terminal of calibrating unit respectively, pick-up unit feedback voltage, electric current, parameter, power and electric power signal, and by pulse output interface, 485 communication interface input calibrating unit.That is, its voltage and current signal is sent to pick-up unit by calibrating unit, and pick-up unit calculates after receiving voltage and current signal, and by result of calculation---power and back electrical energy are to examining and determine unit.
Described first relative error
y lab
computing formula as follows:
y lab
×100（1）
In formula,
for examining and determine the actual measurement energy value of unit, namely examine and determine the energy value that in unit, measurement standard electric energy meter is accumulative, its unit is kWh;
for the feedback power value that pick-up unit internal standard verification device 3 calculates, its unit is kWh; First relative error
y lab
unit be %;
Described second relative error
y refcomputing formula as follows:
y ref ×100（2）
In formula,
be the actual measurement energy value of 0.01 grade of electric energy standard set-up, the energy value that namely in 0.01 grade of electric energy standard set-up, measurement standard electric energy meter is accumulative, its unit is kWh;
for the feedback power value that pick-up unit internal standard verification device 3 calculates, its unit is kWh; Second relative error
y refunit be %.
In sum, the present invention examines and determine accuracy and the stability of the measurement electric energy meter electric energy error of unit by automatic inspection, effectively can solve the calibrating unit problem that whether instrument is working properly under large load operating conditions, without the need to artificial verification, time saving and energy saving; This device can when not suspending streamline, this pick-up unit is utilized to enter streamline together with the common pallet being loaded with electric energy meter, the calibrating unit aligned at work detects, then comparative transmission is adopted, determine that whether this calibrating unit function of measuring is working properly, can notify that maintainer processes in time if there is abnormal, guarantee that every data of examining and determine link are accurate, reliable.
Claims (8)
1. the pick-up unit for electric energy meter automatic Verification streamline, it is characterized in that: comprise pallet, it sets firmly support, it is rack-mount that standard verifies device, the left plate of support, right plate offer at least one groove respectively, connection jaws is placed in groove, and the I/O connection terminal that standard verifies device is connected with described connection jaws, and connection jaws verifies the input/output end port of device as standard.
2. the pick-up unit for electric energy meter automatic Verification streamline according to claim 1, is characterized in that: also comprise outer cover, and external cover is located at standard and verifies on device and to be connected by screw and support, and described support is connected by screw and pallet.
3. the pick-up unit for electric energy meter automatic Verification streamline according to claim 1, is characterized in that: described pallet is single-phase pallet, left plate, right plate is all offered two grooves, places a connection jaws in each groove.
4. the pick-up unit for electric energy meter automatic Verification streamline according to claim 1, is characterized in that: described pallet is three-phase pallet, left plate, right plate is all offered a groove, places a connection jaws in each groove.
5. the pick-up unit for electric energy meter automatic Verification streamline according to claim 1, it is characterized in that: a described connection jaws comprises two row's interfaces, wherein, upper row is respectively 2 RS485 communication interfaces, 2 versatile interfaces and 2 pulse output interfaces, and lower row is 2 voltage interface and 2 current interfaces.
6., for a quality control method for the pick-up unit of electric energy meter automatic Verification streamline, the method comprises the step of following order:
(1) pick-up unit is proceeded to calibrating unit with streamline supply unit, be connected with calibrating unit by automatic crimping system, by the actual measurement electric energy of calibrating unit compared with the feedback power of pick-up unit, obtain the first relative error
y lab
;
(2) pick-up unit is connected with 0.01 grade of electric energy standard set-up, by the actual measurement electric energy of 0.01 grade of electric energy standard set-up compared with the feedback power of pick-up unit, obtains the second relative error
y ref;
(3) when meeting
time, judge that the calibrating unit of this streamline is qualified, wherein,
u labfor often overlapping the expanded uncertainty that calibrating installation Pre-Evaluation draws; Otherwise, when
time, calibrating installation sends abnormity early warning automatically.
7. quality control method according to claim 6, it is characterized in that: after pick-up unit is proceeded to calibrating unit with streamline supply unit, be connected with calibrating unit by automatic crimping system, the voltage interface of pick-up unit, current interface is made to insert voltage wiring terminal and the current wiring terminal of calibrating unit respectively, pick-up unit feedback voltage, electric current, parameter, power and electric power signal, and by pulse output interface, 485 communication interface input calibrating unit.
8. quality control method according to claim 6, is characterized in that: described first relative error
y lab
computing formula as follows:
y lab
×100（1）
In formula,
for examining and determine the actual measurement energy value of unit, namely examine and determine the energy value that in unit, measurement standard electric energy meter is accumulative, its unit is kWh;
for the feedback power value that pick-up unit internal standard verification device calculates, its unit is kWh; First relative error
y lab
unit be %;
Described second relative error
y refcomputing formula as follows:
y ref ×100（2）
In formula,
be the actual measurement energy value of 0.01 grade of electric energy standard set-up, the energy value that namely in 0.01 grade of electric energy standard set-up, measurement standard electric energy meter is accumulative, its unit is kWh;
for the feedback power value that pick-up unit internal standard verification device calculates, its unit is kWh; Second relative error
y refunit be %.
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| CN105866728A (en) * | 2016-06-13 | 2016-08-17 | 国网江苏省电力公司电力科学研究院 | Real-time checking system of automated ammeter calibrating device |
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| CN109541521A (en) * | 2019-01-21 | 2019-03-29 | 广东电网有限责任公司 | A kind of electric energy measuring equipment automatic Verification assembly line O&M monitoring system |
| CN109613465A (en) * | 2018-12-27 | 2019-04-12 | 中国电力科学研究院有限公司 | A kind of metrological supervision method of low-voltage current mutual inductor automatic calibration assembly line |
| CN112213686A (en) * | 2020-08-27 | 2021-01-12 | 国网山东省电力公司日照供电公司 | Checking system of automatic calibrating device of electric energy meter |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105866728A (en) * | 2016-06-13 | 2016-08-17 | 国网江苏省电力公司电力科学研究院 | Real-time checking system of automated ammeter calibrating device |
| CN106066464A (en) * | 2016-06-13 | 2016-11-02 | 国网江苏省电力公司电力科学研究院 | A kind of check standard device for electric energy meter Withstand test device |
| CN106066464B (en) * | 2016-06-13 | 2018-11-06 | 国网江苏省电力公司电力科学研究院 | A kind of check standard device for electric energy meter Withstand test device |
| CN109613465A (en) * | 2018-12-27 | 2019-04-12 | 中国电力科学研究院有限公司 | A kind of metrological supervision method of low-voltage current mutual inductor automatic calibration assembly line |
| CN109613465B (en) * | 2018-12-27 | 2022-02-01 | 中国电力科学研究院有限公司 | Metering supervision method for automatic verification assembly line of low-voltage current transformer |
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| CN112213686A (en) * | 2020-08-27 | 2021-01-12 | 国网山东省电力公司日照供电公司 | Checking system of automatic calibrating device of electric energy meter |
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