CN203025249U - Single-phase metering module for single-phase electric energy meter - Google Patents
Single-phase metering module for single-phase electric energy meter Download PDFInfo
- Publication number
- CN203025249U CN203025249U CN 201320033936 CN201320033936U CN203025249U CN 203025249 U CN203025249 U CN 203025249U CN 201320033936 CN201320033936 CN 201320033936 CN 201320033936 U CN201320033936 U CN 201320033936U CN 203025249 U CN203025249 U CN 203025249U
- Authority
- CN
- China
- Prior art keywords
- relay
- track
- printed
- electric energy
- energy meter
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The utility model discloses a single-phase metering module for a single-phase electric energy meter. The single-phase metering module comprises printed circuit boards (PCBs), and printed wires which are arranged on the PCB and respectively connected with the input ends and the output ends of a manganese copper relay, wherein a printed wire B1 connected with the input end B1 of the relay is arranged on another PCB and is connected with a printed wire B2 connected with the output end B2 of the relay through a through hole; and a printed wire A1A2 connected with the input end A1 and the output end A2 of the relay is intersected with the printed wire B1B2 at the through hole in a layered mode. The two printed wires, which are not positioned on a same layer, are intersected at the through hole in a layered mode, the intersection of the two printed wires is symmetrical relative to the through hole, and the area of the two printed wires is approximately the same; and when a magnetic force line penetrates through the through hole, voltages with opposite polarities are generated at two intersections respectively, so that the voltages can be canceled out, the influence of the PCB wiring on the relay is greatly reduced, and the interference resistance of the electric energy meter on an alternating magnetic field is effectively improved.
Description
Technical field
The utility model relates to a kind of metering module, particularly a kind of single-phase measurement module for single-phase electric energy meter.
Background technology
At present, most single-phase electric energy meters are not all done special adaptations to the impact of alternating magnetic field, the large current lead process non-loaded user in certain family as other users, the magnetic field that induces because of large electric current can cause non-loaded user to have good luck, therefore although the reason comparision of quantity of electricity of having good luck is little, frequently also can lead to a dispute.
The utility model content
The purpose of this utility model is to provide the strong single-phase measurement module that is used for single-phase electric energy meter of a kind of antijamming capability.
This single-phase measurement module for single-phase electric energy meter that the utility model provides, comprise pcb board, be arranged in the track that is connected with its output terminal with copper-manganese relay input end respectively on pcb board, the track B1 that joins with this relay input end B1 is placed on another layer pcb board, this track by via hole be connected with track B2 that this relay output end B2 joins, crossing in via hole place's layering with this track B1B2 with the track A1A2 that this relay input end A1 and its output terminals A 2 are joined.
Described track utilizes the symmetrical counteracting mode in magnetic field, in the alternating magnetic field of three directions of XYZ, is not subjected to this influence of magnetic field; This test alternating magnetic field intensity surpasses 0.7mT.
The utility model adopts new pcb board track layout, article two, do not intersect in via hole place's layering at the track of same layer, both intersection is symmetrical with respect to via hole, and area approximation equates, therefore when the magnetic line of force passes this via hole place, respectively at two voltages that the intersection polarization is opposite, thereby can cancel out each other, thereby greatly reduced the impact of pcb board wiring on relay, greatly improved measuring accuracy, effectively improved electric energy meter to the antijamming capability of alternating magnetic field.To Utilities Electric Co., can reduce the risk of user's stealing, fully satisfy the detection needs of State Grid Corporation of China.
Description of drawings
Fig. 1 is cabling schematic diagram of the present utility model.
Fig. 2 is existing cabling schematic diagram.
Embodiment
As shown in Figure 1, the utility model comprises pcb board, be arranged in the track that is connected with its output terminal with copper-manganese relay input end respectively on pcb board, the track B1 that joins with this relay input end B1 is placed on another layer pcb board, this track by via hole be connected with track B2 that this relay output end B2 joins, crossing in via hole place's layering with this track B1B2 with the track A1A2 that this relay input end A1 and its output terminals A 2 are joined.
These two are not crossing in via hole place's layering at the track of same layer, both intersection is symmetrical with respect to via hole in the projected area of surface level, and area approximation equates, therefore when the magnetic line of force passes this via hole place, respectively at two voltages that the intersection polarization is opposite, thereby can cancel out each other, reduced thus the impact of pcb board wiring on relay, improved measuring accuracy, allow the copper-manganese relay in the AC magnetic field environment, undesired signal be cancelled out each other, thereby improve the antijamming capability of metering circuit.
Track utilizes the symmetrical counteracting mode in magnetic field, in the alternating magnetic field of three directions of XYZ, is not subjected to this influence of magnetic field; This test alternating magnetic field intensity surpasses 0.7mT.
Through overtesting, when the utility model externally disturbed with the 60A electric current, the current value that induces was less than 15mA, and still below shunt running point, his-and-hers watches meter metering impact is not obvious.And the test value before improving when 60A, can reach the 40mA electric current, can reach 100mA during the multi-turn test, exceeds already the starting standard of electric energy meter.
Through overtesting, the utility model is under the interference environment of 0.5mT, and the measuring accuracy of 5A test point is in ± 0.4%, and the test value before improving, the measuring accuracy of 5A test point is in ± 2.5% left and right.
Claims (2)
1. single-phase measurement module that is used for single-phase electric energy meter, comprise pcb board, be arranged in the track that is connected with its output terminal with copper-manganese relay input end respectively on pcb board, it is characterized in that, the track B1 that joins with this relay input end B1 is placed on another layer pcb board, this track by via hole be connected with track B2 that this relay output end B2 joins, crossing in via hole place's layering with this track B1B2 with the track A1A2 that this relay input end A1 and its output terminals A 2 are joined.
2. the single-phase measurement module for single-phase electric energy meter according to claim 1, is characterized in that, described track utilizes the symmetrical counteracting mode in magnetic field, in the alternating magnetic field of three directions of XYZ, is not subjected to this influence of magnetic field; This test alternating magnetic field intensity surpasses 0.7mT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320033936 CN203025249U (en) | 2013-01-23 | 2013-01-23 | Single-phase metering module for single-phase electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320033936 CN203025249U (en) | 2013-01-23 | 2013-01-23 | Single-phase metering module for single-phase electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203025249U true CN203025249U (en) | 2013-06-26 |
Family
ID=48649228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320033936 Expired - Lifetime CN203025249U (en) | 2013-01-23 | 2013-01-23 | Single-phase metering module for single-phase electric energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203025249U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698564A (en) * | 2013-12-26 | 2014-04-02 | 华立仪表集团股份有限公司 | Method for preventing power frequency magnetic field startup of PCBs (Printed Circuit Boards) of electricity meter |
| CN107621561A (en) * | 2017-09-07 | 2018-01-23 | 宁波三星医疗电气股份有限公司 | A kind of antimagnetic electric energy meter of current sample power frequency |
| CN108226631A (en) * | 2017-12-27 | 2018-06-29 | 南昌市科陆智能电网科技有限公司 | A kind of single-phase measurement module of anti-magnetic interference |
| CN109613468A (en) * | 2018-12-29 | 2019-04-12 | 杭州明特科技有限公司 | Dosage compensation method/system, medium and processing equipment based on magnetic field influence amount |
| CN110519922A (en) * | 2019-08-14 | 2019-11-29 | 杭州海兴电力科技股份有限公司 | A kind of strongly disturbing structure of anti-external field of analog sampling circuit |
-
2013
- 2013-01-23 CN CN 201320033936 patent/CN203025249U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698564A (en) * | 2013-12-26 | 2014-04-02 | 华立仪表集团股份有限公司 | Method for preventing power frequency magnetic field startup of PCBs (Printed Circuit Boards) of electricity meter |
| CN107621561A (en) * | 2017-09-07 | 2018-01-23 | 宁波三星医疗电气股份有限公司 | A kind of antimagnetic electric energy meter of current sample power frequency |
| CN108226631A (en) * | 2017-12-27 | 2018-06-29 | 南昌市科陆智能电网科技有限公司 | A kind of single-phase measurement module of anti-magnetic interference |
| CN108226631B (en) * | 2017-12-27 | 2024-02-23 | 深圳市科陆电子科技股份有限公司 | Single-phase metering module for resisting magnetic field interference |
| CN109613468A (en) * | 2018-12-29 | 2019-04-12 | 杭州明特科技有限公司 | Dosage compensation method/system, medium and processing equipment based on magnetic field influence amount |
| CN110519922A (en) * | 2019-08-14 | 2019-11-29 | 杭州海兴电力科技股份有限公司 | A kind of strongly disturbing structure of anti-external field of analog sampling circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203025249U (en) | Single-phase metering module for single-phase electric energy meter | |
| CN203672938U (en) | AC-DC universal leakage-current sensor | |
| CN102590587A (en) | Device and method for identifying short-circuit current of medium-voltage high-current direct current circuit breaker | |
| WO2021169456A1 (en) | Shunt lead structure, electric power instrument and method for manufacturing shunt lead structure | |
| CN108226631A (en) | A kind of single-phase measurement module of anti-magnetic interference | |
| CN103063895A (en) | Pliers-shaped anti-interference current transformer and transformer iron core grounding current testing system | |
| CN202230198U (en) | Palmtop on-site single-phase virtual load device | |
| CN211856700U (en) | Shunt lead structure, wiring terminal button box thereof and electric instrument thereof | |
| CN202230858U (en) | PCB (printed circuit board) type Rogowski coil current transformer | |
| CN202631627U (en) | Strong electromagnetic field resistant intelligent ammeter | |
| CN203456390U (en) | Relay with diverter | |
| CN204028161U (en) | A kind of current sample composite structure resisting strong magnetic for electric energy meter | |
| CN201434883Y (en) | Rogowski coil electric quantity transducer | |
| CN202362371U (en) | Anti-electricity-theft electric energy meter | |
| CN203216967U (en) | Pliers-shaped anti-interference current transformer and transformer iron core grounding current testing system | |
| CN201689775U (en) | Manganin mutual inductor preventing alternating magnetic field | |
| CN203026455U (en) | Relay with manganin | |
| CN201444565U (en) | Electronic control device utilizing low-current mutual transducer to detect high current | |
| CN202837366U (en) | Symmetric-structure diverter capable of resisting alternate magnetic field interference | |
| CN202661520U (en) | Anti-alternating magnetic field interference shunt | |
| CN203101468U (en) | Field electricity-stealing detector | |
| CN203117252U (en) | Sampling resistor with high alternate magnetic field interference resistance | |
| CN202975151U (en) | Manganese-copper sampler with anti-power frequency interference property | |
| CN204330944U (en) | Instrument for testing polarity of current transformer | |
| CN202102038U (en) | Shunting current transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130626 |