CN113030838A - Electric energy meter calibrating installation of online area load examination - Google Patents
Electric energy meter calibrating installation of online area load examination Download PDFInfo
- Publication number
- CN113030838A CN113030838A CN202110321474.6A CN202110321474A CN113030838A CN 113030838 A CN113030838 A CN 113030838A CN 202110321474 A CN202110321474 A CN 202110321474A CN 113030838 A CN113030838 A CN 113030838A
- Authority
- CN
- China
- Prior art keywords
- electric energy
- energy meter
- installation type
- bottom end
- temperature
- 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.)
- Granted
Links
- 238000009434 installation Methods 0.000 title claims abstract description 61
- 238000007405 data analysis Methods 0.000 claims abstract description 16
- 238000004891 communication Methods 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 3
- 238000012545 processing Methods 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 description 10
- 238000012795 verification Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
Abstract
The invention discloses an electric energy meter calibrating device for online on-load calibration, which comprises an installation type standard electric energy meter, a to-be-tested installation type electric energy meter, a temperature and humidity transmitter, a current clamp and a data analysis main control platform, wherein the installation type standard electric energy meter is connected with the temperature and humidity transmitter; the tested installation type electric energy meter and the installation type standard electric energy meter are connected in parallel to a mains supply interface, the tested installation type electric energy meter is connected to a load through a measuring port, the detecting end of a current clamp is connected between the load and the tested installation type electric energy meter, and the signal output end of the current clamp transmits acquired information to the current signal receiving end of the installation type standard electric energy meter; the installation type standard electric energy meter is connected with the temperature and humidity transmitter through a communication interface, the installation type standard electric energy meter is connected with a power supply end of the temperature and humidity transmitter through a self-arranged power supply interface, and a wireless transmission port of the installation type standard electric energy meter is wirelessly connected with the data analysis main control platform; the temperature and humidity transmitter is arranged beside the installation type electric energy meter to be measured; the device can accurately detect the working site environment of the electric energy meter, analyze the influence of the environment on the error of the electric energy meter and determine whether the error variation caused by the temperature meets the requirements of relevant standards.
Description
Technical Field
The invention relates to the technical field of online load verification of an electric energy meter in use, in particular to an electric energy meter online verification device influenced by temperature and having error change.
Background
At present, the metering accuracy of the electric energy meter is verified by periodically (6 months or 1 year) disassembling a laboratory for verification or performing field verification by using an expensive portable electric energy meter calibrator. Firstly, the test is carried out by disassembling the electric energy meter from the laboratory in the most conventional test mode under the reference condition of the laboratory, the electric energy meter on the spot needs to be disassembled into the laboratory to be qualified and then assembled back to the spot, the assembly and disassembly are carried out under the condition of power failure, the benefits of users are sacrificed, the cost of service units is consumed, meanwhile, the workload is huge, and the electric energy meter which is separated from a post line cannot truly reflect the real working state of the electric energy meter; moreover, a large amount of electric energy meters are needed to be purchased as standby meters, which is very expensive. Secondly, an expensive portable electric energy meter calibrator is used for field detection, the calibration result of the calibrator is influenced due to the complexity of the use place of the calibrator and the instability of the use environment, and meanwhile, the expensive portable calibrator is easily damaged by the outside, so that certain economic loss is caused. The two methods bring inconvenience to users and cannot realize uninterrupted real-time online detection. Therefore, the on-site online verification without meter disassembly is required to be realized, so that the verification efficiency is improved, repeated disassembly and assembly are reduced, and the cost is saved.
Moreover, the electric energy meter in use is removed to a laboratory for verification according to the traditional verification method, and whether the electric energy meter is qualified in the actual use process cannot be completely guaranteed. Due to the problem of error accuracy of the electric energy meter, the electric energy meter is influenced by external factors such as working environment, temperature, vibration, electromagnetic interference and the like. The method can accurately detect the working site environment of the electric energy meter, analyze the influence of the environment on the error of the electric energy meter, determine whether the error variation caused by temperature meets the requirements of relevant standards, and serve as one of the conditions for judging whether the electric energy meter works normally.
Disclosure of Invention
The invention aims to provide an electric energy meter calibrating device for online on-load calibration (the device comprises an installation type standard electric energy meter, a temperature and humidity transmitter, a current clamp and a data analysis main control platform), which can accurately calibrate the working site environment of the electric energy meter, analyze the influence of the environment on the error of the electric energy meter and determine whether the error variation caused by temperature meets the requirements of relevant standards.
The technical scheme adopted by the invention is as follows:
the installation type standard electric energy meter is upgraded and modified, various multifunctional modules are added, the temperature and humidity transmitter is connected to the installation type standard electric energy meter, the temperature and humidity transmitter is placed near the installation type electric energy meter to be measured, the temperature and humidity conditions around the installation type electric energy meter to be measured are collected in real time, the installation type standard electric energy meter firstly carries out primary processing on the temperature and humidity conditions, and then information is sent to the data analysis main control platform through the Bluetooth module or the wireless communication module; meanwhile, the current clamp is utilized to collect the circuit current condition of the installation type electric energy meter to be tested in the working state, then the current data information is sent to the installation type standard electric energy meter, the installation type standard electric energy meter analyzes the pulse error, the analysis result is sent to the data analysis main control platform through the Bluetooth module or the wireless communication module, the data analysis main control platform calculates and processes the received temperature and humidity information and the pulse error according to the relevant standards, and therefore error detection and temperature influence error analysis are carried out on the electric energy meter in use under different working condition environments.
Drawings
FIG. 1 is a schematic block diagram of the circuit of the present invention;
FIG. 2 is a schematic diagram of a current clamp according to the present invention;
FIG. 3 is a schematic diagram of a left side cross-sectional structure of the current clamp of the present invention;
FIG. 4 is an enlarged partial view of the current clamp of the present invention at A in FIG. 2;
FIG. 5 is an enlarged partial schematic view of the current clamp of the present invention at B of FIG. 2;
fig. 6 is a schematic diagram of a partial enlarged structure at C in fig. 2 of the current clamp of the present invention.
In the figure: 1. a fixed block; 2. a first semicircular vessel body; 3. a first pressing block; 4. a first fixing lug; 5. a second semicircular vessel body; 6. an extension spring; 7. a connecting rod; 8. a second fixing lug; 9. a connecting plate; 10. a third fixing lug; 11. a push-pull rod; 12. a second pressing block; 13. a first slide plate; 14. a first screw; 15. a second slide plate; 16. a compression spring; 17. a first rotating shaft; 18. a square block; 19. a second rotating shaft; 20. a circular tube; 21. a solenoid; 22. rotating the ring; 23. a circular ring; 24. a fixing plate; 25. a telescopic rod; 26. a second screw; 27. connecting blocks; 28. an anti-slip sleeve; 29. turning a handle; 30. protective pads, 31, wires.
Detailed Description
As shown in fig. 1, the invention comprises an installation type standard electric energy meter, a tested installation type electric energy meter, a temperature and humidity transmitter, a current clamp and a data analysis main control platform; the tested installation type electric energy meter and the installation type standard electric energy meter are connected in parallel with a mains supply interface, the tested installation type electric energy meter is connected to a load through a measuring port, the detecting end of the current clamp is connected to a circuit line between the load and the tested installation type electric energy meter and used for measuring current information of a detecting circuit of the tested installation type electric energy meter in real time, and the signal output end of the current clamp transmits acquired information to a current signal receiving end of the installation type standard electric energy meter; the installation type standard electric energy meter is connected with the temperature and humidity transmitter through a communication interface, the installation type standard electric energy meter is connected with the power supply end of the temperature and humidity transmitter through a self-arranged power supply interface, and the wireless transmission port of the installation type standard electric energy meter is wirelessly connected with the data analysis main control platform; the temperature and humidity transmitter is arranged beside the installation type electric energy meter to be measured.
The installation type standard electric energy meter is internally provided with a Bluetooth module, a wireless communication module, a measurement module, a power module, a communication module and a micro-processing module. The Bluetooth module and the wireless communication module are used for uploading detection data of the installation type standard electric energy meter to the data analysis main control platform; the measuring module is used for measuring the pulse error on the load circuit of the installation type electric energy meter to be measured through the current clamp; the power supply module is used for providing stable 5V voltage for the temperature and humidity transmitter; the communication module adopts an RS485 communication interface and is used for the temperature and humidity transmitter to transmit collected temperature and humidity information data for the installation type standard electric energy meter; the micro-processing module is mainly used for calculating and processing the pulse error according to the relevant standard.
The data analysis main control platform comprises a PC (personal computer), a notebook computer and matched analysis software. And according to the detection result, whether the error of the tested installation type electric energy meter influenced by the temperature is qualified or not is judged through data analysis. The errors of the electric energy meter influenced by the temperature in use are qualified and need to be within the national standard allowable range of the accuracy grade.
As shown in fig. 2-6, the current clamp includes a fixing block 1, a first semicircular device body 2 is embedded in the top end of the fixing block 1, a first pressing block 3 is fixedly connected to the upper side of the inside of the first semicircular device body 2, an adjusting cavity is arranged on the left side of the top end of the fixing block 1, a second semicircular device body 5 is rotatably connected to the inside of the adjusting cavity through a first fixing lug 4, the first semicircular device body 2 and the second semicircular device body 5 are sleeved on the outer side of a bus bar to measure the bus bar, a tension spring 6 is connected to the front side of the bottom end of the second semicircular device body 5, the bottom end of the tension spring 6 is fixedly connected to the front side of the bottom end of the adjusting cavity, a connecting rod 7 is connected to the bottom end of the second fixing lug 8, a second fixing lug 8 is fixedly connected to the bottom end of the connecting rod 7, a connecting plate 9 is rotatably connected to the second fixing lug 8, a third fixing lug 10 is rotatably connected, a push-pull rod 11 is connected to the left side inside the fixed block 1 in a sliding mode, the top end of the push-pull rod 11 extends to the inside of the adjusting cavity, the top end of the push-pull rod 11 is fixedly connected with the bottom end of the third fixing lug 10, a second pressing block 12 is arranged on the bottom side of the inside of the first semicircular body 2 and the bottom side of the inside of the second semicircular body 5, semicircular grooves are formed in the top end of the second pressing block 12 and the bottom end of the first pressing block 3, the second pressing block 12 is connected with a lead 31, and the other end of the lead 31 is connected with a current signal receiving end of the; the first pressing block and the second pressing block form an induction clamp; a first sliding groove is arranged on the right side of the top end of the fixed block 1, a first sliding plate 13 is arranged inside the first sliding groove in a sliding manner, the top end of the first sliding plate 13 is fixedly connected with the bottom end of the second pressing block 12, a first threaded hole is arranged at the bottom end of the first sliding plate 13, a first screw 14 is connected with the inner thread of the first threaded hole, a cavity is arranged inside the fixed block 1 and is positioned at the lower side of the first sliding groove, the bottom end of the first screw 14 extends into the cavity, the first screw 14 is rotatably connected with the fixed block 1, a second sliding groove is arranged at the bottom end of the first screw 14, a second sliding plate 15 is arranged inside the second sliding groove in a sliding manner, a compression spring 16 is fixedly connected with the bottom end of the second sliding plate 15, a first rotating shaft 17 is fixedly connected with the bottom end of the second sliding plate 15, the bottom end of the first rotating shaft 17 extends to the, square 18 and square groove looks adaptation, the bottom fixedly connected with second pivot 19 of square 18, the bottom of cavity is provided with the second screw hole, the bottom of second screw hole is provided with the circular slot that runs through to 1 bottom side of fixed block, the inside slip of circular slot is provided with pipe 20, 19 lateral walls of second pivot are connected with the inside wall cooperation of pipe 20, the outside upside cover of pipe 20 is equipped with screwed pipe 21, screwed pipe 21 and second screw hole looks adaptation, the outside bottom side of pipe 20 is provided with the turn trough, the inside rotation of turn trough is connected with swivel 22, the outside cover of swivel 22 is equipped with ring 23, the left end fixedly connected with fixed plate 24 of ring 23, the top left side of fixed plate 24 and the bottom fixed connection of push-pull rod 11, the bottom of second pivot 19 is connected with tensile mechanism.
It should be further noted that the stretching mechanism includes a telescopic rod 25, a second screw rod 26 is fixedly connected to the top end of the telescopic rod 25, a connecting block 27 is fixedly connected to the bottom end of the second rotating shaft 19, a third threaded hole is formed in the bottom end of the connecting block 27, the second screw rod 26 is screwed in the third threaded hole, and is fixedly connected to the telescopic rod 25 and the second rotating shaft 19 through the second screw rod 26, so as to adjust the height of the current clamp, an anti-slip sleeve 28 is sleeved outside the bottom end of the telescopic rod 25 to play an anti-slip role, so as to increase the friction between the telescopic rod 25 and the hand of a person, a rotating handle 29 is fixedly connected to the outer side of the connecting block 27, the second rotating shaft 19, the first rotating shaft 17 and the first screw rod 14 are conveniently rotated through the rotating handle 29, so as to fix the current clamp on the measuring bus at the lower position, a protective pad 30 is fixedly connected to the inside, the bus bar is protected.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Preparing before verification, clamping a current clamp on a circuit line between a load and a tested installation type electric energy meter, wherein the installation method comprises the following steps:
the telescopic rod 25 is rotatably connected with the second rotating shaft 19 through the matching of the second screw 26 and the third threaded hole, the height of the fixing block 1 is adjusted through the telescopic rod 25, the first semicircular device body 2 and the second semicircular device body 5 are separated through the action of the extension spring 6, then the telescopic rod 25 is pulled down, a bus is embedded between the first semicircular device body 2 and the second semicircular device body 5 through a gap, the bus is clamped in the semicircular groove on the first pressing block 3, then the telescopic rod 25 is pulled downwards, meanwhile, the telescopic rod 25 is forced by external force to pull the square block 18, the circular tube 20, the fixing plate 24 and the push-pull rod 11 to synchronously move downwards, the second semicircular device body 5 rotates anticlockwise through the action of the connecting plate 9 and the connecting rod 7, when the screw tube 21 moves downwards to the position of the second threaded hole, the telescopic rod 25 is rotated, the screw tube 21 is screwed in the second threaded hole, and the first semicircular device body 2 is contacted with the second semicircular device body 5, so that the second semicircular vessel body 5 is closed with the gap of the first semicircular vessel body 2. Then, the telescopic rod 25 is pushed upwards to enable the square block 18 to move to the upper side of the square groove, then the telescopic rod 25 is rotated to enable the second rotating shaft 19, the first rotating shaft 17 and the first screw rod 14 to rotate, the first sliding plate 13 is enabled to move upwards, the first pressing plate and the second pressing plate are enabled to compress and fix the bus, therefore, the bus is convenient to measure, the current clamp is convenient to reliably clamp and press the bus, and the stability of the current clamp is improved. And an iron core and a coil are arranged in the first pressing plate and the second pressing plate, and form an induction clamp after being closed, so that current induction measurement is carried out on the bus.
After the equipment is installed, the device is electrified, the environment numerical value detected by the temperature and humidity transmitter is directly read after the installation type standard electric energy meter is electrified, when the installation type standard electric energy meter is detected on site by the installation type electric energy meter in use, temperature and humidity parameters and other detection data of an experimental environment are transmitted to the data analysis main control platform in a Bluetooth or WI-FI communication mode, the data analysis main control platform compares the temperature under a reference condition according to the temperature detected on site, and whether the error of the electric energy meter influenced by the temperature during the site operation meets the relevant standard requirements or not is analyzed. Therefore, error detection and temperature influence error analysis of the electric energy meter in use under different working condition environments are realized.
Because the error of the electric energy meter in use changes along with the rise and fall of the temperature in the actual detection, a plurality of relatively stable temperature values of high, medium and low can be selected for multiple detections according to the working environment of the installation type electric energy meter to be detected in the actual detection, and whether the error variation of the electric energy meter affected by the temperature is qualified or not is judged through the calculation of the data analysis main control platform.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. The utility model provides an electric energy meter calibrating installation of online area load examination which characterized in that: the device comprises an installation type standard electric energy meter, a tested installation type electric energy meter, a temperature and humidity transmitter, a current clamp and a data analysis main control platform; the tested installation type electric energy meter and the installation type standard electric energy meter are connected in parallel with a mains supply interface, the tested installation type electric energy meter is connected to a load through a measuring port, the detecting end of the current clamp is connected between the load and the tested installation type electric energy meter and used for measuring current information of a detecting circuit of the tested installation type electric energy meter in real time, and the signal output end of the current clamp transmits acquired information to a current signal receiving end of the installation type standard electric energy meter; the installation type standard electric energy meter is connected with the temperature and humidity transmitter through a communication interface, the installation type standard electric energy meter is connected with the power supply end of the temperature and humidity transmitter through a self-arranged power supply interface, and the wireless transmission port of the installation type standard electric energy meter is wirelessly connected with the data analysis main control platform; the temperature and humidity transmitter is arranged beside the installation type electric energy meter to be measured.
2. The electric energy meter calibrating device for online on-load calibration according to claim 1, wherein: the installation type standard electric energy meter is internally provided with a Bluetooth module, a wireless communication module, a measurement module, a power module, a communication module and a micro-processing module.
3. The electric energy meter calibrating device for online on-load calibration according to claim 1, wherein: the current clamp comprises a fixed block, a first semicircular device body is embedded and mounted at the top end of the fixed block, a first pressing block is fixedly connected to the upper side of the interior of the first semicircular device body, an adjusting cavity is arranged at the left side of the top end of the fixed block, a second semicircular device body is rotatably connected to the interior of the adjusting cavity through a first fixing lug, a tension spring is connected to the front side of the bottom end of the second semicircular device body, the bottom end of the tension spring is fixedly connected with the front side of the bottom end of the adjusting cavity, a connecting rod is connected to the bottom side of the rear end of the first fixing lug, a second fixing lug is fixedly connected to the bottom end of the connecting rod, a connecting plate is rotatably connected to the second fixing lug, a third fixing lug is rotatably connected to the bottom end of the connecting plate, a push-pull rod is slidably connected to the left side of the interior of the fixed block, the top end of the, the bottom sides of the first semicircular device body and the second semicircular device body are provided with second pressing blocks, the top ends of the second pressing blocks and the bottom end of the first pressing block are provided with semicircular grooves, the second pressing blocks are connected with wires, and the other ends of the wires are connected with current signal receiving ends of the installation type standard electric energy meters; the first pressing block and the second pressing block form an induction clamp; the right side of the top end of the fixed block is provided with a first sliding chute, the inside of the first sliding chute is provided with a first sliding plate in a sliding manner, the top end of the first sliding plate is fixedly connected with the bottom end of the second pressing block, the bottom end of the first sliding plate is provided with a first threaded hole, the inside of the first threaded hole is in threaded connection with a first screw rod, the inside of the fixed block is positioned at the lower side of the first sliding chute and is provided with a cavity, the bottom end of the first screw rod extends to the inside of the cavity, the first screw rod is rotatably connected with the fixed block, the bottom end of the first screw rod is provided with a second sliding chute, the inside of the second sliding chute is provided with a second sliding plate in a sliding manner, the bottom end of the second sliding plate is fixedly connected with a first rotating shaft, the bottom end of the first rotating shaft extends to the lower part of the first screw rod, the bottom end of the first, the bottom of cavity is provided with the second screw hole, and the bottom of second screw hole is provided with the circular slot that runs through to fixed block (1) bottom side, and the inside of circular slot slides and is provided with the pipe, the inside wall cooperation of second pivot lateral wall and pipe is connected, and the outside upside cover of pipe is equipped with the screwed pipe, screwed pipe and second screw hole looks adaptation, the bottom side of the outside of pipe is provided with the turn trough, and the inside rotation of turn trough is connected with the change, and the outside cover of change is equipped with the ring, and the left end fixedly connected with fixed plate of ring, the top left side of fixed plate and the bottom fixed connection of push-and-pull rod, the bottom of second pivot is connected with tension mechanism.
4. The electric energy meter calibrating device for online on-load calibration according to claim 3, wherein: the stretching mechanism include the telescopic link, the top fixedly connected with second screw rod of telescopic link, the bottom fixedly connected with connecting block of second pivot, the bottom of connecting block is provided with the third screw hole, second screw rod spiral shell dress is in the inside of third screw hole.
5. The electric energy meter calibrating device for online on-load calibration according to claim 3, wherein: the outer side of the connecting block is fixedly connected with a rotating handle.
6. The electric energy meter calibrating device for online on-load calibration according to claim 3, wherein: the second sliding plate is arranged to be of a square structure.
7. The electric energy meter calibrating device for online on-load calibration according to claim 3, wherein: and the inner parts of the two semicircular grooves are fixedly connected with a protective pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110321474.6A CN113030838B (en) | 2021-03-25 | 2021-03-25 | Electric energy meter calibrating device for on-line on-load calibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110321474.6A CN113030838B (en) | 2021-03-25 | 2021-03-25 | Electric energy meter calibrating device for on-line on-load calibration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113030838A true CN113030838A (en) | 2021-06-25 |
| CN113030838B CN113030838B (en) | 2024-02-02 |
Family
ID=76473776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110321474.6A Active CN113030838B (en) | 2021-03-25 | 2021-03-25 | Electric energy meter calibrating device for on-line on-load calibration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113030838B (en) |
Citations (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1347502A (en) * | 1999-01-12 | 2002-05-01 | 宇宙技术公司 | Clip-on ammeter for measuring current circulating in conductors |
| JP2010249525A (en) * | 2009-04-10 | 2010-11-04 | Hioki Ee Corp | Clamp sensor |
| CN102135608A (en) * | 2011-01-29 | 2011-07-27 | 四川电力科学研究院 | Electric energy metering and monitoring system of intelligent gateway |
| US20120039061A1 (en) * | 2010-08-10 | 2012-02-16 | Cooper Technologies Company | Apparatus and Method for Mounting an Overhead Device |
| CN102832568A (en) * | 2012-09-05 | 2012-12-19 | 国家电网公司 | Current guiding device for live operation of distribution network with long-distance real-time monitor |
| CN103105512A (en) * | 2013-01-23 | 2013-05-15 | 安徽省电力公司芜湖供电公司 | High-altitude test clamp |
| CN203232064U (en) * | 2013-05-09 | 2013-10-09 | 国家电网公司 | Automatic closed type housing and load monitoring device with same |
| WO2014014495A1 (en) * | 2012-07-19 | 2014-01-23 | Optisense Network, Llc | Optical sensor assembly for installation on a current carrying cable |
| CN103616546A (en) * | 2013-11-19 | 2014-03-05 | 国家电网公司 | Electronic current transformer |
| US20140173842A1 (en) * | 2012-12-21 | 2014-06-26 | Murray W. Davis | Conductor cleaning brush assembly for overhead electric power lines |
| CN104407196A (en) * | 2014-11-19 | 2015-03-11 | 西安交通大学 | Open type Rogowski coil current sensor convenient for overhead suspending |
| CN204882678U (en) * | 2015-06-04 | 2015-12-16 | 北京智罗盘智能电气有限公司 | High -pressure current clamp that can install and remove with electricity and install and remove frock thereof |
| CN206132818U (en) * | 2016-11-07 | 2017-04-26 | 国家电网公司 | High altitude termination that transformer test used |
| CN107132400A (en) * | 2017-07-12 | 2017-09-05 | 泉州亿兴电力有限公司 | A kind of clamp current measuring device |
| CN206920476U (en) * | 2017-06-23 | 2018-01-23 | 国家电网公司 | Telescopic clip-on ammeter |
| CN207114705U (en) * | 2017-08-24 | 2018-03-16 | 国家电网公司 | Oil immersed current transformer discharge in insulation pulse detecting equipment |
| CN107907714A (en) * | 2017-07-14 | 2018-04-13 | 国网浙江省电力公司湖州供电公司 | A kind of multifunctional electric leakage detects utensil |
| CN108169704A (en) * | 2018-01-20 | 2018-06-15 | 国网江西省电力有限公司电力科学研究院 | A kind of intelligent electric energy meter composition error detection method |
| CN207817048U (en) * | 2018-02-11 | 2018-09-04 | 广东电网有限责任公司江门供电局 | A kind of active type low-voltage overhead line road current sample bar |
| CN207924001U (en) * | 2018-04-04 | 2018-09-28 | 广州市铱泰电子科技有限公司 | A kind of wireless high-low pressure clamp on amperemeter |
| CN108695764A (en) * | 2018-06-04 | 2018-10-23 | 郑全祥 | One kind holding telescopic power cable on-bne repair device |
| CN109244912A (en) * | 2018-10-30 | 2019-01-18 | 国网山东省电力公司潍坊供电公司 | 10kV intermediate switchgear cabinet current transformer replaces specific purpose tool |
| CN209055613U (en) * | 2018-10-24 | 2019-07-02 | 广东电网有限责任公司 | A kind of earth detector suitable for different form stringing |
| CN209388866U (en) * | 2019-03-09 | 2019-09-13 | 北京市北方森源电气有限责任公司 | Hook type current transformer |
| CN209843481U (en) * | 2019-07-16 | 2019-12-24 | 大连华亿电力电器有限公司 | Multi-turn link type sulfur hexafluoride gas insulation current transformer |
| CN209946213U (en) * | 2019-03-22 | 2020-01-14 | 江苏丰盈科技有限公司 | Lithium ion battery detects fixture |
| CN110794240A (en) * | 2019-11-08 | 2020-02-14 | 国网山东省电力公司日照供电公司 | Zinc oxide arrester live tester who easily uses night |
| CN110850147A (en) * | 2019-12-05 | 2020-02-28 | 广东电网有限责任公司 | Current induction device |
| CN210576549U (en) * | 2019-09-20 | 2020-05-19 | 武汉岱嘉电气技术有限公司 | Grounding wire clamp |
| CN211063531U (en) * | 2019-12-10 | 2020-07-21 | 河南省计量科学研究院 | Sucking disc formula filtering fastener for efficiency supervisory systems |
| CN211320738U (en) * | 2020-03-16 | 2020-08-21 | 邵建强 | Protection device for outdoor framework of transformer substation |
| CN211404277U (en) * | 2020-03-16 | 2020-09-01 | 北京华强诚信电器有限公司 | Current transformer convenient for fixing and measuring lead |
| CN211878022U (en) * | 2019-12-18 | 2020-11-06 | 广东电网有限责任公司 | Telescopic clip-on ammeter |
| CN112068067A (en) * | 2020-09-22 | 2020-12-11 | 国网冀北电力有限公司计量中心 | On-load error detection system of epitope isolation transformer of assembly line metrological verification device |
-
2021
- 2021-03-25 CN CN202110321474.6A patent/CN113030838B/en active Active
Patent Citations (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030006754A1 (en) * | 1999-01-12 | 2003-01-09 | Bernard Landre | A clamp for measuring an electrical current flowing in conductors |
| CN1347502A (en) * | 1999-01-12 | 2002-05-01 | 宇宙技术公司 | Clip-on ammeter for measuring current circulating in conductors |
| JP2010249525A (en) * | 2009-04-10 | 2010-11-04 | Hioki Ee Corp | Clamp sensor |
| US20120039061A1 (en) * | 2010-08-10 | 2012-02-16 | Cooper Technologies Company | Apparatus and Method for Mounting an Overhead Device |
| CN103250059A (en) * | 2010-08-10 | 2013-08-14 | 库柏技术公司 | Apparatus for mounting an overhead monitoring device |
| CN102135608A (en) * | 2011-01-29 | 2011-07-27 | 四川电力科学研究院 | Electric energy metering and monitoring system of intelligent gateway |
| WO2014014495A1 (en) * | 2012-07-19 | 2014-01-23 | Optisense Network, Llc | Optical sensor assembly for installation on a current carrying cable |
| CN102832568A (en) * | 2012-09-05 | 2012-12-19 | 国家电网公司 | Current guiding device for live operation of distribution network with long-distance real-time monitor |
| US20140174171A1 (en) * | 2012-12-21 | 2014-06-26 | Murray W. Davis | Portable self powered line mountable device for measuring and transmitting rainfall measurements |
| US20140173842A1 (en) * | 2012-12-21 | 2014-06-26 | Murray W. Davis | Conductor cleaning brush assembly for overhead electric power lines |
| CN103105512A (en) * | 2013-01-23 | 2013-05-15 | 安徽省电力公司芜湖供电公司 | High-altitude test clamp |
| CN203232064U (en) * | 2013-05-09 | 2013-10-09 | 国家电网公司 | Automatic closed type housing and load monitoring device with same |
| CN103616546A (en) * | 2013-11-19 | 2014-03-05 | 国家电网公司 | Electronic current transformer |
| CN104407196A (en) * | 2014-11-19 | 2015-03-11 | 西安交通大学 | Open type Rogowski coil current sensor convenient for overhead suspending |
| CN204882678U (en) * | 2015-06-04 | 2015-12-16 | 北京智罗盘智能电气有限公司 | High -pressure current clamp that can install and remove with electricity and install and remove frock thereof |
| CN206132818U (en) * | 2016-11-07 | 2017-04-26 | 国家电网公司 | High altitude termination that transformer test used |
| CN206920476U (en) * | 2017-06-23 | 2018-01-23 | 国家电网公司 | Telescopic clip-on ammeter |
| CN107132400A (en) * | 2017-07-12 | 2017-09-05 | 泉州亿兴电力有限公司 | A kind of clamp current measuring device |
| CN107907714A (en) * | 2017-07-14 | 2018-04-13 | 国网浙江省电力公司湖州供电公司 | A kind of multifunctional electric leakage detects utensil |
| CN207114705U (en) * | 2017-08-24 | 2018-03-16 | 国家电网公司 | Oil immersed current transformer discharge in insulation pulse detecting equipment |
| CN108169704A (en) * | 2018-01-20 | 2018-06-15 | 国网江西省电力有限公司电力科学研究院 | A kind of intelligent electric energy meter composition error detection method |
| CN207817048U (en) * | 2018-02-11 | 2018-09-04 | 广东电网有限责任公司江门供电局 | A kind of active type low-voltage overhead line road current sample bar |
| CN207924001U (en) * | 2018-04-04 | 2018-09-28 | 广州市铱泰电子科技有限公司 | A kind of wireless high-low pressure clamp on amperemeter |
| CN108695764A (en) * | 2018-06-04 | 2018-10-23 | 郑全祥 | One kind holding telescopic power cable on-bne repair device |
| CN209055613U (en) * | 2018-10-24 | 2019-07-02 | 广东电网有限责任公司 | A kind of earth detector suitable for different form stringing |
| CN109244912A (en) * | 2018-10-30 | 2019-01-18 | 国网山东省电力公司潍坊供电公司 | 10kV intermediate switchgear cabinet current transformer replaces specific purpose tool |
| CN209388866U (en) * | 2019-03-09 | 2019-09-13 | 北京市北方森源电气有限责任公司 | Hook type current transformer |
| CN209946213U (en) * | 2019-03-22 | 2020-01-14 | 江苏丰盈科技有限公司 | Lithium ion battery detects fixture |
| CN209843481U (en) * | 2019-07-16 | 2019-12-24 | 大连华亿电力电器有限公司 | Multi-turn link type sulfur hexafluoride gas insulation current transformer |
| CN210576549U (en) * | 2019-09-20 | 2020-05-19 | 武汉岱嘉电气技术有限公司 | Grounding wire clamp |
| CN110794240A (en) * | 2019-11-08 | 2020-02-14 | 国网山东省电力公司日照供电公司 | Zinc oxide arrester live tester who easily uses night |
| CN110850147A (en) * | 2019-12-05 | 2020-02-28 | 广东电网有限责任公司 | Current induction device |
| CN211063531U (en) * | 2019-12-10 | 2020-07-21 | 河南省计量科学研究院 | Sucking disc formula filtering fastener for efficiency supervisory systems |
| CN211878022U (en) * | 2019-12-18 | 2020-11-06 | 广东电网有限责任公司 | Telescopic clip-on ammeter |
| CN211320738U (en) * | 2020-03-16 | 2020-08-21 | 邵建强 | Protection device for outdoor framework of transformer substation |
| CN211404277U (en) * | 2020-03-16 | 2020-09-01 | 北京华强诚信电器有限公司 | Current transformer convenient for fixing and measuring lead |
| CN112068067A (en) * | 2020-09-22 | 2020-12-11 | 国网冀北电力有限公司计量中心 | On-load error detection system of epitope isolation transformer of assembly line metrological verification device |
Non-Patent Citations (3)
| Title |
|---|
| KAREL DRAXLER 等: "Clamp current transformers for noninvasive calibration of current transformers", 2016 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE PROCEEDINGS * |
| 刘洋洋 等: "电能表现场校验仪钳形电流互感器的检定", 计量与测试技术 * |
| 李二鹤 等: "安装式电能表现场在线检定的可行性分析", 计量与测试技术 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113030838B (en) | 2024-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103424732B (en) | A kind of direct-current electric energy meter calibrating device | |
| CN103149546B (en) | The field integrated tester of a kind of portable electric energy measuring terminal | |
| CN201378204Y (en) | Automatic detecting and metrological characteristic analyzing device for energy meter standard devices | |
| CN206192402U (en) | Gaseous little water of SF6, density on -line monitoring system | |
| CN201327428Y (en) | Device used for detecting insertion and extraction force of contact element of electric connector | |
| CN204241685U (en) | An a kind of device for energy meter standard accuracy distant place is detected and status monitoring platform | |
| CN103149471A (en) | Calibration method and calibration device for battery charger and charging pile | |
| CN206339317U (en) | A kind of Transformer Winding temperature on-line monitoring device | |
| CN105607027A (en) | High-low temperature weather effect testing device for electric energy meter | |
| CN103063926B (en) | A kind of method of testing of low-voltage power line narrowband carrier termination and proving installation | |
| CN103293510B (en) | Device and method for quickly measuring errors of electric energy meter | |
| CN204479197U (en) | A kind of acquisition system of electric equipment temperature rise test data | |
| CN109655182A (en) | A kind of electric motor starting output shaft torque simple system of measuring and measurement method | |
| CN201464062U (en) | Battery temperature on-line measuring system | |
| CN113030838B (en) | Electric energy meter calibrating device for on-line on-load calibration | |
| CN207123583U (en) | A kind of cable termination on-Line Monitor Device | |
| CN206609856U (en) | A kind of density monitor on-line calibration system based on internet | |
| CN203773039U (en) | Novel insulation ohmmeter intelligent calibrating apparatus | |
| CN107085177B (en) | Ultrasonic water meter PCB circuit on-line detection method and device | |
| CN203350433U (en) | Device capable of rapidly determining error of electric energy meter | |
| CN104101787A (en) | Portable low-voltage reactive compensation standard detection system and detection method | |
| CN201378072Y (en) | Wire on-line weighing machine | |
| CN201707783U (en) | Automatic data acquisition system of concrete cooling through water | |
| CN102042800B (en) | High-accuracy micro-displacement detection device for deep hole internal diameter detection | |
| CN111060394A (en) | Anchor bolt anchoring performance testing system based on wireless transmission |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No.21, Jinshui Garden Road, Zhengzhou City, Henan Province 450008 Patentee after: Henan Institute of Metrology and Testing Science Country or region after: China Address before: No.21, Jinshui Garden Road, Zhengzhou City, Henan Province 450008 Patentee before: HENAN PROVINCE INSTITUTE OF METROLOGY Country or region before: China |
|
| CP03 | Change of name, title or address |