CN107345977A - The Wiring structure of the pin configuration of manganese copper diverter, pcb board and pcb board - Google Patents
The Wiring structure of the pin configuration of manganese copper diverter, pcb board and pcb board Download PDFInfo
- Publication number
- CN107345977A CN107345977A CN201710533143.2A CN201710533143A CN107345977A CN 107345977 A CN107345977 A CN 107345977A CN 201710533143 A CN201710533143 A CN 201710533143A CN 107345977 A CN107345977 A CN 107345977A
- Authority
- CN
- China
- Prior art keywords
- pcb board
- current sampling
- sampling port
- copper diverter
- manganese copper
- 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
Classifications
-
- 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)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The invention discloses the Wiring structure of a kind of pin configuration of manganese copper diverter, pcb board and pcb board, the first current sampling port and the second current sampling port of manganese copper diverter are located at the homonymy of manganese copper diverter, and the second current sampling port is disturbed by outside alternating magnetic field；Second sampled signal line forms an annular cabling on the pcb board being be arranged in parallel with manganese copper diverter, and the AD samplings of chip are connected to together with the first sampled signal line in a manner of parallel or multiple twin, acted on simultaneously on copper-manganese and annular cabling so that outside alternating magnetic field is disturbed, the outside alternating magnetic field interference that the second current sampling port is subject to is cancelled out each other.The present invention cancels out each other using cabling mode of the current sampling port of manganese copper diverter on pcb board is changed, by alternating magnetic field to the interference of the second current sampling port, so as to prevent sampling interference of the alternating magnetic field to manganese copper diverter.
Description
Technical field
The present invention relates to electronic circuit technology field, more particularly to a kind of pin configuration of manganese copper diverter, pcb board and
The Wiring structure of pcb board.
Background technology
Manganese copper diverter is widely used in instrument measurement current domain, available for communication system, complete electronic set, automation
Backflow, current limliting, the sampling detection flowed of the power supply of control etc..Manganese copper diverter has that stability is good, temperature variation is small
Feature.Current sampling devices of the device as electronic electric energy meter, have there is the history of decades, until today is still used as one
The indispensable Sampling device of kind is used.
Existing manganese copper diverter is generally fixed on the end of incoming cables of electronic equipment by fixed copper sheet, manganese copper diverter
Be connected between current sampling end and electronic circuit pcb board with two current sampling signal lines, sampled signal line using it is vertical walk
Line mode or it is directly welded on pcb board.Because the current signal of manganese copper diverter collection is very small, usually microvolt level
, so traditional this cabling mode for being directly installed on terminal or being connected on relay, is particularly easy to by alternation
The interference in magnetic field, so as to cause current sample and metering inaccurate.
According to Faraday's electromagnetic induction law, induced electromotive force calculation formula is caused by coil：E=Nd Φ/dt are (wherein
φ=BS, B are magnetic field intensity, and S is effective area, N=1), when there is alternating magnetic field interference, copper-manganese in itself, cable and copper-manganese
Gap or the gap of pcb board and copper-manganese have closed circuit, corresponding induced electromotive force will be produced in sampling end, the sense
Answer electromotive force to amplify by subsequent conditioning circuit, the accuracy of current sample is had a strong impact on after AD conversion.Existing some criminals
Just the defects of easily being influenceed accurately to measure by outside alternating magnetic field using the existing electric energy meter based on copper-manganese sampling, carries out stealing,
Changed through calculating using error caused by the means stealing with the power of alternating magnetic field intensity, worst error can reach
100%.In addition, alternating electromagnetism interference internal in designing manganese copper diverter itself also can not be ignored, for example, Industrial Frequency Transformer
Leakage field influences meter kinematic error；The copper-manganese symmetrical expression connection of three-phase meter three, em induced current is excessive between phase and phase, small-signal
Influence serious etc..
Therefore, interference of the extraneous alternating magnetic field to manganese copper diverter how is resisted, is a problem of letter is to be solved.
The content of the invention
It is an object of the invention to provide a kind of pin configuration, the pcb board of the manganese copper diverter of anti-extraneous alternating magnetic field interference
And the Wiring structure of pcb board, it is mainly used in the copper-manganese current sampling devices that the anti-extraneous alternating magnetic field in electric energy meter field disturbs.
The pin configuration of manganese copper diverter provided by the invention, the manganese copper diverter include the first current sampling port and the
Two current sampling ports, it is characterised in that first current sampling port is connected with the first sampled signal line, and second electric current is adopted
Sample end is connected with the second sampled signal line；
First current sampling port and the second current sampling port are located at the homonymy of the manganese copper diverter；Second electricity
Stream sampling end is disturbed by outside alternating magnetic field；
The second sampled signal line, one annular of formation is walked on the pcb board being be arranged in parallel with the manganese copper diverter
Line, and the AD samplings of chip are connected in a manner of parallel or multiple twin together with the first sampled signal line, by outside
Alternating magnetic field interference is acted on copper-manganese and annular cabling simultaneously, the outside alternating magnetic field interference for being subject to the second current sampling port
Cancel out each other.
As a kind of embodiment, the manganese copper diverter is vertically welded on the first pcb board；
The side of the manganese copper diverter is arranged with the second pcb board in parallel；
The second sampled signal line is gone on second pcb board from second current sampling port, forms a ring
After shape cabling, return on first pcb board, finally in a manner of parallel or multiple twin together with the first sampled signal line
It is connected to the AD samplings of chip.
As a kind of embodiment, the manganese copper diverter is welded in parallel on the 3rd pcb board；
The second sampled signal line is gone on the 3rd pcb board from second current sampling port, forms a ring
After shape cabling, the AD samplings of chip are connected to together with the first sampled signal line in a manner of parallel or multiple twin.
The invention provides a kind of pcb board, including substrate, the copper-manganese point described in any of the above-described is disposed with the substrate
Flow the pin configuration of device.
The invention provides a kind of electric energy meter, including manganese copper diverter, the manganese copper diverter uses any of the above-described institute
The pin configuration for the manganese copper diverter stated.
The invention provides a kind of Wiring structure of pcb board, including the first pcb board, the second pcb board and it is vertically welded in
Manganese copper diverter on first pcb board；
The manganese copper diverter includes the first current sampling port and the second current sampling port；Second current sampling port by
Outside alternating magnetic field interference；
First current sampling port is connected with the first sampled signal line, and second current sampling port is connected with second and adopted
Sample signal wire, first current sampling port and the second current sampling port are located at the homonymy of the manganese copper diverter；
Second pcb board, it is be arranged in parallel positioned at the side of the manganese copper diverter, and with the manganese copper diverter；
The second sampled signal line is gone on second pcb board from second current sampling port, forms a ring
After shape cabling, return on first pcb board, finally in a manner of parallel or multiple twin together with the first sampled signal line
It is connected to the AD samplings of chip.
The invention provides a kind of Wiring structure of pcb board, it is characterised in that including pcb board and is welded on institute in parallel
State the manganese copper diverter on pcb board；
The manganese copper diverter includes the first current sampling port and the second current sampling port；Second current sampling port by
Outside alternating magnetic field interference；
First current sampling port is connected with the first sampled signal line, and second current sampling port is connected with second and adopted
Sample signal wire, first current sampling port and the second current sampling port are located at the homonymy of the manganese copper diverter；
The second sampled signal line is gone on the pcb board from second current sampling port, is formed an annular and is walked
After line, the AD samplings of chip are connected to together with the second sampled signal line in a manner of parallel or multiple twin.
Compared with prior art, the technical program has advantages below：
The Wiring structure of the pin configuration of manganese copper diverter provided by the invention, pcb board and pcb board, using changing copper-manganese
Cabling mode of the current sampling port of current divider on pcb board, increase loop area, so as to which alternating magnetic field be adopted to the second electric current
The interference of sample end copper-manganese, the interference with the annular cabling of the second sampled signal line are overlapped, disturb both and mutually support
Disappear, so as to prevent sampling interference of the alternating magnetic field to manganese copper diverter.Can not only solve the interference of outside alternating magnetic field, simultaneously
Also it can solve the problem that the electromagnetism between phase and phase to itself internal Industrial Frequency Transformer leakage field and the copper-manganese symmetrical expression scheme of three-phase meter three
Sense mutual interference.
Brief description of the drawings
Fig. 1 is the Wiring structure schematic diagram for the pcb board that the embodiment of the present invention one provides；
Fig. 2 is the Wiring structure side diagram for the pcb board that the embodiment of the present invention two provides；
Fig. 3 is that the Wiring structure for the pcb board that the embodiment of the present invention two provides is bowed diagram.
Embodiment
Below in conjunction with accompanying drawing, the technical characteristic above-mentioned and other to the present invention and advantage are clearly and completely described,
Obviously, described embodiment is only the section Example of the present invention, rather than whole embodiments.
The pin configuration of manganese copper diverter provided by the invention, by changing traditional pin configuration, so as to prevent alternation
Sampling interference of the magnetic field to manganese copper diverter, it is mainly used in the copper-manganese electric current of the anti-extraneous alternating magnetic field interference in electric energy meter field
Sampling device.
Manganese copper diverter has three ends, respectively voltage sampling port, the first current sampling port and the second current sampling port, the
One current sampling port is connected with the first sampled signal line, and the second current sampling port is connected with the second sampled signal line.The present invention carries
The pin configuration of the manganese copper diverter of confession, its first current sampling port and the second current sampling port are located at the same of manganese copper diverter
Side；Second current sampling port is disturbed by outside alternating magnetic field；Second sampled signal line, what is be arranged in parallel with manganese copper diverter
An annular cabling is formed on pcb board, and chip is connected to together with the first sampled signal line in a manner of parallel or multiple twin
AD samplings, the interference of outside alternating magnetic field is introduced into annular cabling, the outside alternating magnetic field for being subject to the second current sampling port
Interference is cancelled out each other.
It uses cabling mode of the current sampling port for changing manganese copper diverter on pcb board, increases loop area, so as to
Alternating magnetic field is disturbed the copper-manganese of the second current sampling port, while introduces annular cabling, makes what the second current sampling port was subject to
Outside alternating magnetic field interference is cancelled out each other, so as to prevent sampling interference of the alternating magnetic field to manganese copper diverter.Can not only solve
The interference of outside alternating magnetic field, while also can solve the problem that to itself internal Industrial Frequency Transformer leakage field and the copper-manganese symmetrical expression of three-phase meter three
The electromagnetic induction mutual interference between phase and phase of scheme.
The present invention introduces alternating magnetic field and the second current sampling port is disturbed by increasing the loop area of lead, allow its by
The alternating magnetic field interference in opposite direction of the size identical that is introduced to original copper-manganese, both cancel out each other from and preventing alternation magnetic
Sampling interference of the field to manganese copper diverter.Its implementation can have it is a variety of, for example, manganese copper diverter can be vertically welded in
On first pcb board, then be arranged in parallel the second pcb board in the side of manganese copper diverter, and the second sampled signal line is from the second electric current
Sampling end is gone on the second pcb board, after forming an annular cabling, is returned on the first pcb board, finally with parallel or multiple twin
Mode is connected to the AD samplings of chip together with the first sampled signal line.Manganese copper diverter can also be welded in parallel pcb board
On, the second sampled signal line is gone on the pcb board from the second current sampling port, after forming an annular cabling, with parallel or
The mode of multiple twin is connected to the AD samplings of chip together with the first sampled signal line.
The embodiment of the present invention also provides a kind of pcb board, including substrate, and the lead of above-mentioned manganese copper diverter is disposed with substrate
Structure.
Two kinds of specific embodiments are set forth below, the implementation process of the present invention is described in detail.
Embodiment one
Referring to Fig. 1, the anti-extraneous alternating magnetic field of the Wiring structure using pcb board that the present embodiment provides is done to manganese copper diverter
The design disturbed, it mainly includes manganese copper diverter 03, the first pcb board 01 and the second pcb board 02.The vertical welding of manganese copper diverter 03
On the first pcb board 01, the second pcb board 02 is parallel and near to manganese copper diverter 03, second electricity of the PCB trace from manganese copper diverter 03
Sampled point B is flowed, one annular cabling 04 of picture on the second pcb board 02 is gone to, walks back the C points on the first pcb board 01 again afterwards, simultaneously
The AD for being connected to chip in a manner of parallel or multiple twin with the first sampling end A of manganese copper diverter 03 PCB traces drawn is sampled.
When originally without the second pcb board 02, alternating magnetic field is acted only on manganese copper diverter 03, is produced induced electromotive force and is tired out
It is added on B points, the AD samplings of A, B dual-point entry chip, △ UAB=I*R+E.After increasing this second pcb board 02, sensing is produced
Electromotive force is respectively acting on 2 points of A, C, △ UAC=△ UAB+ △ UBC=I*R+E+E' ≈ I*R, big close to actual electric current
It is small, the AD samplings of A, C dual-point entry chip.Wherein I is the electric current for needing to sample, and R is copper-manganese value, and E is that power frequency magnetic field acts on
The induced electromotive force of manganese copper diverter 03, E' are induced electromotive force of the action of alternating magnetic field on the second pcb board 02, and electromotive force is big
It is small identical with E, in the opposite direction.
This pin configuration is simple, and the original current sampling port of manganese copper diverter second is received caused by copper-manganese loop
Electromotive force and induced electromotive force caused by electric current annular, both are equal in magnitude, in the opposite direction, so as to cancel out each other, AD samplings
Value is also more nearly actual current value, is also prevented from sampling interference of the alternating magnetic field to manganese copper diverter.
Embodiment two
Referring to Fig. 2 and Fig. 3, the anti-extraneous alternating magnetic field of the Wiring structure using pcb board that the present embodiment provides is to copper-manganese point
The design of device interference is flowed, it mainly includes dividing pcb board 10 and manganese copper diverter 11.Manganese copper diverter 11 welds parallel to pcb board 10
It is connected on pcb board 10, PCB trace goes to one annular of picture on pcb board 10 from the second current sample point B of manganese copper diverter 11
Cabling 12, the C points gone further back afterwards on pcb board 10, while the PCB trace drawn with the first sampling end A of manganese copper diverter 11
The AD samplings of chip are connected in a manner of parallel or multiple twin.
Similarly, this pin configuration receives the original current sampling port of manganese copper diverter second caused by copper-manganese loop
Electromotive force and induced electromotive force caused by electric current annular, both are equal in magnitude, in the opposite direction, so as to cancel out each other, AD samplings
Value is also more nearly actual current value, is also prevented from sampling interference of the alternating magnetic field to manganese copper diverter.
Based on above-described embodiment, the embodiment of the present invention additionally provides a kind of electric energy meter, including manganese copper diverter, the copper-manganese point
The pin configuration that device uses above-mentioned manganese copper diverter is flowed, can effectively prevent sampling interference of the alternating magnetic field to manganese copper diverter,
Solve the influence of the electromagnetic induction mutual interference between phase and phase of the copper-manganese symmetrical expression scheme of three-phase meter three, solve Industrial Frequency Transformer and manganese
Copper current divider apart from it is near when, influence that Industrial Frequency Transformer leakage field measures to electric energy meter.
Although the present invention is disclosed as above with preferred embodiment, it is not for limiting the present invention, any this area
Technical staff without departing from the spirit and scope of the present invention, may be by the methods and technical content of the disclosure above to this hair
Bright technical scheme makes possible variation and modification, therefore, every content without departing from technical solution of the present invention, according to the present invention
Any simple modifications, equivalents, and modifications made to above example of technical spirit, belong to technical solution of the present invention
Protection domain.
Claims (7)
1. a kind of pin configuration of manganese copper diverter, the manganese copper diverter includes the first current sampling port and the second current sample
End, it is characterised in that first current sampling port is connected with the first sampled signal line, and second current sampling port is connected with
Second sampled signal line；
First current sampling port and the second current sampling port are located at the homonymy of the manganese copper diverter；Second electric current is adopted
Disturbed by outside alternating magnetic field at sample end；
The second sampled signal line, an annular cabling is formed on the pcb board being be arranged in parallel with the manganese copper diverter, and
The AD samplings of chip are connected to together with the first sampled signal line in a manner of parallel or multiple twin, by outside alternation magnetic
Field interference is acted on copper-manganese and annular cabling simultaneously, the outside alternating magnetic field interference that the second current sampling port is subject to mutually is supported
Disappear.
2. the pin configuration of the manganese copper diverter according to profit requires 1, it is characterised in that the manganese copper diverter vertical welding
On the first pcb board；
The side of the manganese copper diverter is arranged with the second pcb board in parallel；
The second sampled signal line is gone on second pcb board from second current sampling port, is formed an annular and is walked
After line, return on first pcb board, finally connected in a manner of parallel or multiple twin with together with the first sampled signal line
AD to chip is sampled.
3. the pin configuration of the manganese copper diverter according to profit requires 1, it is characterised in that the parallel welding of the manganese copper diverter
On the 3rd pcb board；
The second sampled signal line is gone on the 3rd pcb board from second current sampling port, is formed an annular and is walked
After line, the AD samplings of chip are connected to together with the first sampled signal line in a manner of parallel or multiple twin.
4. a kind of pcb board, including substrate, it is characterised in that any one of the claims 1 to 3 institute is disposed with the substrate
The pin configuration for the manganese copper diverter stated.
5. a kind of electric energy meter, including manganese copper diverter, it is characterised in that the manganese copper diverter uses the claims 1 to 3
The pin configuration of manganese copper diverter described in any one.
6. a kind of Wiring structure of pcb board, it is characterised in that including the first pcb board, the second pcb board and be vertically welded in institute
State the manganese copper diverter on the first pcb board；
The manganese copper diverter includes the first current sampling port and the second current sampling port；Second current sampling port is by outside
Alternating magnetic field disturbs；
First current sampling port is connected with the first sampled signal line, and second current sampling port is connected with the second sampling letter
Number line, first current sampling port and the second current sampling port are located at the homonymy of the manganese copper diverter；
Second pcb board, it is be arranged in parallel positioned at the side of the manganese copper diverter, and with the manganese copper diverter；
The second sampled signal line is gone on second pcb board from second current sampling port, is formed an annular and is walked
After line, return on first pcb board, finally connected in a manner of parallel or multiple twin with together with the first sampled signal line
AD to chip is sampled.
7. a kind of Wiring structure of pcb board, it is characterised in that including pcb board and the copper-manganese being welded in parallel on the pcb board
Current divider；
The manganese copper diverter includes the first current sampling port and the second current sampling port；Second current sampling port is by outside
Alternating magnetic field disturbs；
First current sampling port is connected with the first sampled signal line, and second current sampling port is connected with the second sampling letter
Number line, first current sampling port and the second current sampling port are located at the homonymy of the manganese copper diverter；
The second sampled signal line is gone on the pcb board from second current sampling port, after forming an annular cabling,
The AD samplings of chip are connected to together with the first sampled signal line in a manner of parallel or multiple twin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710533143.2A CN107345977B (en) | 2017-07-03 | 2017-07-03 | Lead structure of manganin shunt, PCB and wiring structure of PCB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710533143.2A CN107345977B (en) | 2017-07-03 | 2017-07-03 | Lead structure of manganin shunt, PCB and wiring structure of PCB |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107345977A true CN107345977A (en) | 2017-11-14 |
| CN107345977B CN107345977B (en) | 2020-01-17 |
Family
ID=60258039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710533143.2A Active CN107345977B (en) | 2017-07-03 | 2017-07-03 | Lead structure of manganin shunt, PCB and wiring structure of PCB |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107345977B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108845179A (en) * | 2018-06-07 | 2018-11-20 | 宁波三星智能电气有限公司 | electric energy meter current sampling module |
| CN109324307A (en) * | 2018-09-02 | 2019-02-12 | 青岛鼎信通讯科技有限公司 | A kind of electric energy meter Hz noise counteracting method based on PCB |
| WO2021169456A1 (en) * | 2020-02-28 | 2021-09-02 | 浙江永泰隆电子股份有限公司 | Shunt lead structure, electric power instrument and method for manufacturing shunt lead structure |
| CN113358904A (en) * | 2021-04-30 | 2021-09-07 | 南方电网数字电网研究院有限公司 | Anti-interference device for electric energy meter and wiring method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102105802A (en) * | 2007-07-13 | 2011-06-22 | 基乃克茨产品有限公司 | Transformer meter and system for using same |
| CN201955366U (en) * | 2010-12-30 | 2011-08-31 | 宁波三星电气股份有限公司 | Electric energy meter |
| CN202177647U (en) * | 2011-08-12 | 2012-03-28 | 桐乡市伟达电子有限公司 | Alternating magnetic field resistant manganin diverter |
| CN202815037U (en) * | 2012-09-28 | 2013-03-20 | 厦门宏发电力电器有限公司 | Electronic electric energy meter capable of reducing interference on current divider caused by alternating magnetic filed |
| CN202939197U (en) * | 2012-12-14 | 2013-05-15 | 厦门宏发电力电器有限公司 | Shunt of electronic watt-hour meter capable of resisting alternating magnetic field interference |
| CN203502490U (en) * | 2013-10-25 | 2014-03-26 | 浙江正泰仪器仪表有限责任公司 | Anti-alternating magnetic field interference single-phase metering module |
| CN204028161U (en) * | 2014-07-07 | 2014-12-17 | 江苏林洋电子股份有限公司 | A kind of current sample composite structure resisting strong magnetic for electric energy meter |
| WO2016128018A1 (en) * | 2015-02-09 | 2016-08-18 | OJ Electronics A/S | Method of determining power consumption of an electrical heating system |
| CN107271744A (en) * | 2017-07-03 | 2017-10-20 | 杭州海兴电力科技股份有限公司 | The Wiring structure of the pin configuration of manganese copper diverter, pcb board and pcb board |
-
2017
- 2017-07-03 CN CN201710533143.2A patent/CN107345977B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102105802A (en) * | 2007-07-13 | 2011-06-22 | 基乃克茨产品有限公司 | Transformer meter and system for using same |
| CN201955366U (en) * | 2010-12-30 | 2011-08-31 | 宁波三星电气股份有限公司 | Electric energy meter |
| CN202177647U (en) * | 2011-08-12 | 2012-03-28 | 桐乡市伟达电子有限公司 | Alternating magnetic field resistant manganin diverter |
| CN202815037U (en) * | 2012-09-28 | 2013-03-20 | 厦门宏发电力电器有限公司 | Electronic electric energy meter capable of reducing interference on current divider caused by alternating magnetic filed |
| CN202939197U (en) * | 2012-12-14 | 2013-05-15 | 厦门宏发电力电器有限公司 | Shunt of electronic watt-hour meter capable of resisting alternating magnetic field interference |
| CN203502490U (en) * | 2013-10-25 | 2014-03-26 | 浙江正泰仪器仪表有限责任公司 | Anti-alternating magnetic field interference single-phase metering module |
| CN204028161U (en) * | 2014-07-07 | 2014-12-17 | 江苏林洋电子股份有限公司 | A kind of current sample composite structure resisting strong magnetic for electric energy meter |
| WO2016128018A1 (en) * | 2015-02-09 | 2016-08-18 | OJ Electronics A/S | Method of determining power consumption of an electrical heating system |
| CN107271744A (en) * | 2017-07-03 | 2017-10-20 | 杭州海兴电力科技股份有限公司 | The Wiring structure of the pin configuration of manganese copper diverter, pcb board and pcb board |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108845179A (en) * | 2018-06-07 | 2018-11-20 | 宁波三星智能电气有限公司 | electric energy meter current sampling module |
| CN109324307A (en) * | 2018-09-02 | 2019-02-12 | 青岛鼎信通讯科技有限公司 | A kind of electric energy meter Hz noise counteracting method based on PCB |
| CN109324307B (en) * | 2018-09-02 | 2022-02-08 | 青岛鼎信通讯科技有限公司 | Electric energy meter power frequency interference cancellation method based on PCB |
| WO2021169456A1 (en) * | 2020-02-28 | 2021-09-02 | 浙江永泰隆电子股份有限公司 | Shunt lead structure, electric power instrument and method for manufacturing shunt lead structure |
| CN113358904A (en) * | 2021-04-30 | 2021-09-07 | 南方电网数字电网研究院有限公司 | Anti-interference device for electric energy meter and wiring method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107345977B (en) | 2020-01-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107271744A (en) | The Wiring structure of the pin configuration of manganese copper diverter, pcb board and pcb board | |
| CN107345977A (en) | The Wiring structure of the pin configuration of manganese copper diverter, pcb board and pcb board | |
| CN103412176B (en) | Real-time on-line monitoring sensor for current of alternating current-direct current arrester based on magnetoresistance | |
| CN103840437B (en) | The quick diagnosis of power distribution network ferromagnetic resonance and singlephase earth fault and processing method | |
| CN105301665B (en) | A kind of metal sensor and the method for the besieged object in the medium of metal sensor detection | |
| EP2924448A1 (en) | Electronic electric meter resistant to alternating magnetic field interferences | |
| CN108646144A (en) | A kind of offline distance measuring method of high voltage single-core cable short trouble, apparatus and system | |
| CN104569671B (en) | A kind of current conversion station grounded screen direct current diverting coefficient method of testing | |
| CN103063895B (en) | Pliers-shaped anti-interference current transformer and transformer iron core grounding current testing system | |
| CN106018939A (en) | Wide-range transient current sensor based on tunneling magnetic resistance | |
| CN110274639A (en) | Capacitive electromagnetic flow meter | |
| CN109031154A (en) | High accuracy battery AC internal Resistance detection device | |
| CN107290629A (en) | A kind of 10KV low-voltage networks Earth design method | |
| CN102854347A (en) | Electric energy meter and current sampling device thereof | |
| CN207007954U (en) | New-energy automobile radiation disturbance risk assessment easily-testing system | |
| CN208888303U (en) | Wire current measuring system | |
| CN108037376A (en) | A kind of power distribution network cable connector electric field strength detection device | |
| CN211856700U (en) | Shunt lead structure, wiring terminal button box thereof and electric instrument thereof | |
| CN105445526B (en) | The measurement structure of single cable insulation leakage current under a kind of service condition | |
| CN103901252B (en) | 10KV power transmission line zero-sequence current detecting systems | |
| CN206832877U (en) | Device for detecting leakage current, transmitter, sensor and automatic control system | |
| CN110836987B (en) | Manganese-copper shunt of three-phase intelligent electric energy meter and application thereof | |
| CN208459510U (en) | A kind of electromagnetic interference diagnostic device | |
| CN104081215B (en) | Current detector | |
| Qamar et al. | Configuration Detection of Grounding Grid: Static Electric Field Based Nondestructive Technique |
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 | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210303 Address after: No. 1418, Moganshan Road, Gongshu District, Hangzhou, Zhejiang 310000 (Shangcheng Industrial Park) Patentee after: HANGZHOU HEXING ELECTRICAL Co.,Ltd. Patentee after: NINGBO HENGLIDA TECHNOLOGY Co.,Ltd. Address before: 1418 Moganshan Road, Hangzhou, Zhejiang 310000 (Shangcheng Industrial Park) Patentee before: HANGZHOU HEXING ELECTRICAL Co.,Ltd. Patentee before: NINGBO HENGLIDA TECHNOLOGY Co.,Ltd. Patentee before: HUNAN HAIXING ELECTRICAL APPLIANCE Co.,Ltd. |
|
| TR01 | Transfer of patent right |