CN112098684B - Electric energy meter wire inlet and outlet reverse connection rapid checking instrument - Google Patents
Electric energy meter wire inlet and outlet reverse connection rapid checking instrument Download PDFInfo
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- CN112098684B CN112098684B CN202010972637.2A CN202010972637A CN112098684B CN 112098684 B CN112098684 B CN 112098684B CN 202010972637 A CN202010972637 A CN 202010972637A CN 112098684 B CN112098684 B CN 112098684B
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- fixedly arranged
- shell
- electromagnetic induction
- electric energy
- energy meter
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/55—Testing for incorrect line connections
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- General Physics & Mathematics (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
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Abstract
The invention discloses an electric energy meter wire inlet and outlet reverse connection rapid checking instrument which comprises a shell, wherein an observation box is fixedly arranged in the middle of the rear end of the shell, a cover plate is fixedly arranged at the upper end of the shell and the upper end of the observation box together, baffle plates are fixedly arranged at the upper left side part and the upper right side part of an inner cavity of the shell, electromagnetic induction devices are fixedly arranged between the two baffle plates together, at least three sliding induction mechanisms are fixedly connected between the two baffle plates and the left side wall and the right side wall of the inner cavity of the shell respectively together, connecting wires are arranged at the lower part of the left end and the lower part of the right end of the shell, and a plurality of ventilation grooves which are internally and externally penetrated are formed in the rear part of the left end and the rear part of the right end of the observation box at equal intervals. The electric energy meter wire-in and wire-out inverse connection rapid checking instrument is convenient to use, can perform rapid judgment on the current direction through the cooperative work of the electromagnetic induction device and the sliding induction mechanism, and can judge the current direction through the rotation direction of the slow motor in the observation box, and the operation is simple and convenient.
Description
Technical Field
The invention relates to the technical field of electric construction, in particular to a rapid checking instrument for electric energy meter wire connection and disconnection.
Background
The electric energy meter is a meter for measuring electric energy, also called an electric meter, a fire meter and a kilowatt hour meter, and refers to a meter for measuring various electric quantities. When the electric energy meter is used, the electric energy meter can be directly connected into a circuit for measurement under the conditions of low voltage (not more than 500V) and small current (tens of amperes). Under the condition of high voltage or high current, the electric energy meter cannot be directly connected into a circuit, and the electric energy meter is matched with a voltage transformer or a current transformer for use.
The current electric energy meter is usually electronic, the situation that normal electricity cannot be used is caused after the incoming and outgoing lines of the electronic electric energy meter are reversely connected, the situation that the incoming and outgoing lines of the electric energy meter are reversely connected is often caused due to the fact that the electricity is supplied by an electric power worker when the electric energy meter is connected, resident or enterprise electricity utilization is affected, and the use requirement is not met.
Disclosure of Invention
The invention mainly aims to provide a quick checking instrument for the reverse connection of an incoming line and an outgoing line of an electric energy meter, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides an electric energy meter business turn over line connects anti-quick inspection appearance, includes the casing, casing rear end middle part fixed mounting has the observation box, casing and the common fixed mounting of observation box upper end have the apron, equal fixed mounting in casing inner chamber left side upper portion and right side upper portion has the baffle, two common fixed mounting has electromagnetic induction device between the baffle, two common fixed connection has at least three slip induction mechanism between baffle and casing inner chamber left side wall and the inner chamber right side wall respectively, casing left end lower part and right-hand member lower part all are provided with the connecting wire, the equal ventilation groove of having seted up inside and outside break-through of a plurality of in the equal distance in observation box left end rear portion and right-hand member rear portion.
Preferably, the electromagnetic induction device comprises an insulating rod, the insulating rod is fixedly connected to the middle parts of opposite surfaces of the two baffles, a spiral coil is wound on the outer surface of the insulating rod, connecting terminals are fixedly installed on the left part and the right part of the bottom wall of the inner cavity of the shell, and two ends of the spiral coil are respectively electrically connected with the two connecting terminals.
Preferably, the connecting wire comprises a wire, one end of the wire is fixedly connected with the wiring terminal, and one end of the wire, far away from the wiring terminal, penetrates through the side wall of the shell and extends to the outside of the shell to be fixedly connected with the wiring clamp.
Preferably, the sliding induction mechanism comprises an insulating sliding rod, sliding sleeves are slidably mounted on the outer surfaces of the insulating sliding rod, permanent magnets are fixedly mounted at the upper ends of the sliding sleeves, one sides, close to the electromagnetic induction devices, of the permanent magnets located on two sides of the electromagnetic induction devices are both N poles or S poles, and smooth electroplated layers are arranged on the inner walls of the sliding sleeves and the outer surfaces of the insulating sliding rod.
Preferably, the observation box comprises a bottom plate, the bottom plate upper end fixed mounting has the box, box inner chamber lateral wall upper portion fixed mounting has the roof, bottom plate upper end middle part fixed mounting has slow motor, and slow motor's output fixed mounting has the transmission shaft, the one end fixed mounting who keeps away from slow motor has the carousel, carousel up end outside fixed mounting has vertical pole, the ring channel has been seted up in the roof upper end outside, vertical pole upper end runs through the ring channel and extends to its top and fixed mounting has the color pellet, the centre of a circle position fixed mounting that top plate upper end middle part is located the ring channel has L type pole, and L type pole other end fixed connection is at the box inner wall.
Preferably, the positive electrode and the negative electrode of the slow motor are respectively and electrically connected with the two wiring terminals.
Preferably, the bottom plate and the shell are of an integrated structure, the box body is made of an electromagnetic shielding plate, and the left end face and the right end face of the box body are respectively and fixedly connected with the two baffles.
Preferably, the cover plate comprises a non-transparent plate, a first transparent plate is fixedly arranged at the middle part of the rear end of the non-transparent plate at a position right above the observation box, and second transparent plates are fixedly arranged at the left end and the right end of the non-transparent plate.
Compared with the prior art, the invention has the following beneficial effects:
1. through being provided with electromagnetic induction device and slip induction mechanism, after the solenoid circular telegram, can produce the induced magnetic field, utilize the self magnetic field reaction of permanent magnet for the permanent magnet slides on insulating slide bar surface, makes the permanent magnet be close to electromagnetic induction device or principle electromagnetic induction device to the magnetic pole position of permanent magnet, thereby can make the judgement to the magnetic field magnetic pole direction that electromagnetic induction device produced, can judge the current direction, and then judge whether the business turn over line of electric energy meter connects reversely.
2. Through being provided with the observation box, the positive and negative pole of slow motor respectively with two binding post electric connection, after the circular telegram, the current direction is different then can lead to slow motor's rotation direction different, drives the carousel through the transmission shaft and rotates to drive vertical pole rotation, make the color ball rotate in the ring channel, convenient to use person observes rotation direction, thereby further judges the current direction.
3. Through first transparent plate and second transparent plate, can be convenient for the user observe the coloured ball in slip induction system and the observation box, be convenient for judge the current direction, can also play certain guard action to it simultaneously, prolong its life.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a rapid inspection instrument for the reverse connection of an electric energy meter inlet and outlet wires;
FIG. 2 is a partial cross-sectional view of the electric energy meter access line reverse rapid inspection instrument of the present invention;
FIG. 3 is a schematic diagram showing the connection between the connecting wires of the electric energy meter access line reverse rapid checking instrument and the electromagnetic induction device;
FIG. 4 is a schematic diagram showing the detachment of the sliding sensing structure of the electric energy meter access line reverse rapid inspection instrument according to the present invention;
FIG. 5 is a schematic diagram of the internal structure of an observation box of the electric energy meter access line reverse rapid checking instrument of the invention;
fig. 6 is a schematic diagram of the overall structure of the top plate of the electric energy meter access line reverse rapid inspection instrument according to the present invention.
In the figure: 1. a housing; 2. an observation box; 20. an L-shaped rod; 21. a bottom plate; 22. a case; 23. a top plate; 24. a slow motor; 25. a transmission shaft; 26. a turntable; 27. a vertical rod; 28. an annular groove; 29. colored pellets; 3. a cover plate; 31. a non-transparent plate; 32. a second transparent plate; 33. a first transparent plate; 4. a baffle; 5. a magnetic induction device; 51. an insulating rod; 52. a spiral coil; 53. a connection terminal; 6. a sliding induction mechanism; 61. an insulating slide bar; 62. a sliding sleeve; 63. a permanent magnet; 7. a connecting wire; 71. a wire; 72. a jointing clamp; 8. a ventilation groove.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
As shown in fig. 1-6, the electric energy meter incoming and outgoing line inverse fast checking instrument comprises a shell 1, an observation box 2 is fixedly installed in the middle of the rear end of the shell 1, a cover plate 3 is fixedly installed at the upper ends of the shell 1 and the observation box 2 together, baffle plates 4 are fixedly installed at the upper left part and the upper right part of an inner cavity of the shell 1, electromagnetic induction devices 5 are fixedly installed between the two baffle plates 4 together, at least three sliding induction mechanisms 6 are fixedly connected between the two baffle plates 4 and the left side wall and the right side wall of the inner cavity of the shell 1 respectively together, connecting wires 7 are arranged at the lower part of the left end and the lower part of the right end of the shell 1, a plurality of ventilation grooves 8 which are internally and externally penetrated are uniformly arranged at equal intervals at the rear part of the left end and the rear part of the right end of the observation box 2, and through ventilation grooves 8 are arranged, so that air circulation in the observation box 2 can be quickened, and heat generated by the operation of a slow motor 24 is discharged conveniently, and heat dissipation is facilitated.
The electromagnetic induction device 5 comprises an insulating rod 51, the insulating rod 51 is fixedly connected to the middle parts of the opposite surfaces of the two baffles 4, a spiral coil 52 is wound on the outer surface of the insulating rod 51, connecting terminals 53 are fixedly arranged on the left part and the right part of the bottom wall of the inner cavity of the shell 1, two ends of the spiral coil 52 are respectively and electrically connected with the two connecting terminals 53, and after the spiral coil 52 is electrified, an induction magnetic field can be generated, different current directions are adopted, and magnetic poles of the generated magnetic field are different.
The connecting wire 7 comprises a wire 71, one end of the wire 71 is fixedly connected with the wiring terminal 53, one end of the wire 71 far away from the wiring terminal 53 penetrates through the side wall of the shell 1 to extend to the outside of the shell 1 and is fixedly connected with the wiring clamp 72, and the whole device can be connected to an in-out wire of the electric energy meter through the wiring clamp 72, so that current in the electric energy meter passes through the whole device.
The sliding induction mechanism 6 comprises an insulating sliding rod 61, a sliding sleeve 62 is slidably arranged on the outer surface of the insulating sliding rod 61, permanent magnets 63 are fixedly arranged at the upper ends of the sliding sleeve 62, one sides of the permanent magnets 63 located at two sides of the electromagnetic induction device 5, which are close to the electromagnetic induction device 5, are both N poles or S poles, smooth electroplated layers are arranged on the inner wall of the sliding sleeve 62 and the outer surface of the insulating sliding rod 61, after the spiral coil 52 is electrified, an induction magnetic field can be generated, the permanent magnets 63 slide on the surface of the insulating sliding rod 61 by utilizing the self magnetic field reaction of the permanent magnets 63, the permanent magnets 63 are close to the electromagnetic induction device 5 or are in principle the electromagnetic induction device 5, and according to the magnetic pole position of the known permanent magnets 63, judgment can be made on the magnetic pole direction of a magnetic field generated by the electromagnetic induction device 5, and then the current direction can be judged, and whether the incoming and outgoing lines of the electric energy meter are reversely connected or not can be judged.
The observation box 2 comprises a bottom plate 21, a box body 22 is fixedly arranged at the upper end of the bottom plate 21, a top plate 23 is fixedly arranged at the upper part of the side wall of the inner cavity of the box body 22, a slow motor 24 is fixedly arranged in the middle of the upper end of the bottom plate 21, a transmission shaft 25 is fixedly arranged at the output end of the slow motor 24, a rotary table 26 is fixedly arranged at one end of the transmission shaft 25 far away from the slow motor 24, a vertical rod 27 is fixedly arranged at the outer side of the upper end surface of the rotary table 26, an annular groove 28 is formed in the outer side of the upper end of the top plate 23, the upper end of the vertical rod 27 penetrates through the annular groove 28 to extend to the upper side and is fixedly provided with a colored ball 29, an L-shaped rod 20 is fixedly arranged at the center position of the annular groove 28 at the upper end middle part of the top plate 23, the other end of the L-shaped rod 20 is fixedly connected to the inner wall of the box body 22, the slow motor 24 works after being electrified, the rotary table 26 is driven to rotate by the transmission shaft 25, so that the vertical rod 27 is driven to rotate, the colored ball 29 rotates in the annular groove 28, and a user can observe the rotation direction, thereby further judging the current direction.
The positive and negative poles of the slow motor 24 are respectively electrically connected with the two connecting terminals 53, and after the current is applied, the different current directions can lead to different rotation directions of the slow motor 24.
The bottom plate 21 and the casing 1 are of an integrated structure, the box 22 is made of an electromagnetic shielding plate, the left end face and the right end face of the box 22 are respectively and fixedly connected with the two baffles 4, the whole box 22 and the casing 1 are firmly connected, and the influence of an induction magnetic field generated by the electromagnetic induction device 5 on the operation of the slow motor 24 can be avoided.
The apron 3 includes non-transparent plate 31, and non-transparent plate 31 rear end middle part is located the position fixed mounting directly over the observation box 2 has first transparent plate 33, and non-transparent plate 31 left end and right-hand member all fixed mounting have second transparent plate 32, through first transparent plate 33 and second transparent plate 32, can be convenient for the user observe the colored ball 29 in slip induction mechanism 6 and the observation box 2, be convenient for judge out the current direction, can also play certain guard action to it simultaneously, prolong its life.
Example two
The same parts as those of the first embodiment are not described herein, and the different parts of the first embodiment and the second embodiment are provided with a control switch in cooperation with the slow motor 24, so that the switch can be turned off in the actual use process, the sliding induction mechanism 6 and the electromagnetic induction device 5 can be independently cooperated to work together to obtain the current direction, and when the sliding induction mechanism 6 and the electromagnetic induction device 5 are damaged, the control switch can be turned on, so that the current direction can be checked by using the observation box 2. The practical times of the slow motor 24 are reduced, the energy can be saved to a certain extent, and the service life of the whole device is prolonged.
It should be noted that, the present invention is an electric energy meter incoming and outgoing line reverse connection rapid checking instrument, when in use, the jointing clamp 72 is respectively connected with the incoming and outgoing lines of the electric energy meter, when the spiral coil 52 is electrified, an induced magnetic field can be generated, the permanent magnet 63 slides on the surface of the insulating slide bar 61 by utilizing the self magnetic field reaction of the permanent magnet 63, the permanent magnet 63 approaches to the electromagnetic induction device 5 or the principle electromagnetic induction device 5, according to the magnetic pole position of the known permanent magnet 63, the magnetic pole direction of the magnetic field generated by the electromagnetic induction device 5 can be judged, the current direction can be judged, and then whether the incoming and outgoing line of the electric energy meter is reversely connected, the positive and negative poles of the slow motor 24 are respectively electrically connected with the two jointing terminals 53, if the current directions are different, the rotation direction of the slow motor 24 can be different, and the turntable 26 is driven to rotate by the transmission shaft 25 after the electrification, thereby driving the vertical rod 27 to rotate, the colored ball 29 to rotate in the annular groove 28, thereby facilitating the observation of the rotation direction by the user, and further judging the current direction.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. The utility model provides an electric energy meter business turn over line connects anti-quick inspection appearance, includes casing (1), its characterized in that: the novel electromagnetic induction type solar cell is characterized in that an observation box (2) is fixedly arranged in the middle of the rear end of the shell (1), a cover plate (3) is fixedly arranged at the upper part of the left side and the upper part of the right side of the inner cavity of the shell (1) together, a baffle plate (4) is fixedly arranged at the upper part of the left side and the upper part of the right side of the inner cavity of the shell (1), electromagnetic induction devices (5) are fixedly arranged between the two baffle plates (4) together, at least three sliding induction mechanisms (6) are fixedly connected between the two baffle plates (4) and the left side wall and the right side wall of the inner cavity of the shell (1) respectively, connecting wires (7) are arranged at the lower part of the left end and the lower part of the right end of the shell (1), and a plurality of ventilation grooves (8) penetrating inside and outside are uniformly formed in the rear part of the left end and the rear part of the right end of the shell (2);
the electromagnetic induction device (5) comprises an insulating rod (51), the insulating rod (51) is fixedly connected to the middle parts of opposite surfaces of the two baffles (4), a spiral coil (52) is wound and wrapped on the outer surface of the insulating rod (51), connecting terminals (53) are fixedly arranged at the fixed left part and the fixed right part of the bottom wall of the inner cavity of the shell (1), and two ends of the spiral coil (52) are respectively and electrically connected with the two connecting terminals (53);
the connecting wire (7) comprises a wire (71), one end of the wire (71) is fixedly connected with the wiring terminal (53), and one end of the wire (71) far away from the wiring terminal (53) penetrates through the side wall of the shell (1) to extend to the outside of the shell (1) and is fixedly connected with the wiring clamp (72);
the sliding induction mechanism (6) comprises an insulating sliding rod (61), sliding sleeves (62) are slidably arranged on the outer surfaces of the insulating sliding rod (61), permanent magnets (63) are fixedly arranged at the upper ends of the sliding sleeves (62), one sides, close to the electromagnetic induction device (5), of the permanent magnets (63) positioned at two sides of the electromagnetic induction device (5) are both N poles or S poles, and smooth electroplated layers are arranged on the inner walls of the sliding sleeves (62) and the outer surfaces of the insulating sliding rod (61);
the observation box (2) comprises a bottom plate (21), a box body (22) is fixedly arranged at the upper end of the bottom plate (21), a top plate (23) is fixedly arranged at the upper part of the side wall of an inner cavity of the box body (22), a slow motor (24) is fixedly arranged in the middle of the upper end of the bottom plate (21), a transmission shaft (25) is fixedly arranged at the output end of the slow motor (24), a turntable (26) is fixedly arranged at one end, far away from the slow motor (24), of the transmission shaft (25), a vertical rod (27) is fixedly arranged at the outer side of the upper end surface of the turntable (26), an annular groove (28) is formed at the outer side of the upper end of the top plate (23), a colored small ball (29) is fixedly arranged above the annular groove (28) in a penetrating mode, an L-shaped rod (20) is fixedly arranged at the center position of the upper end of the annular groove (28), and the other end of the L-shaped rod (20) is fixedly connected to the inner wall of the box body (22);
the positive electrode and the negative electrode of the slow motor (24) are respectively and electrically connected with the two wiring terminals (53);
the bottom plate (21) and the shell (1) are of an integrated structure, the box body (22) is made of an electromagnetic shielding plate, and the left end face and the right end face of the box body (22) are fixedly connected with the two baffles (4) respectively;
the cover plate (3) comprises a non-transparent plate (31), a first transparent plate (33) is fixedly arranged at the position, right above the observation box (2), of the middle part of the rear end of the non-transparent plate (31), and a second transparent plate (32) is fixedly arranged at the left end and the right end of the non-transparent plate (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010972637.2A CN112098684B (en) | 2020-09-16 | 2020-09-16 | Electric energy meter wire inlet and outlet reverse connection rapid checking instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010972637.2A CN112098684B (en) | 2020-09-16 | 2020-09-16 | Electric energy meter wire inlet and outlet reverse connection rapid checking instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112098684A CN112098684A (en) | 2020-12-18 |
| CN112098684B true CN112098684B (en) | 2023-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010972637.2A Active CN112098684B (en) | 2020-09-16 | 2020-09-16 | Electric energy meter wire inlet and outlet reverse connection rapid checking instrument |
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| CN (1) | CN112098684B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701978A (en) * | 2009-11-13 | 2010-05-05 | 曾碚勇 | Current detecting device on high-voltage and ultrahigh-voltage power transmission line and detecting method thereof |
| CN204008955U (en) * | 2014-07-11 | 2014-12-10 | 国家电网公司 | CT polarity measurement device |
| CN106842645A (en) * | 2017-02-28 | 2017-06-13 | 合肥鑫晟光电科技有限公司 | A kind of control method for adsorbing bar, vacuum abutted equipment and vacuum abutted equipment |
| CN208077717U (en) * | 2018-01-11 | 2018-11-09 | 深圳市宗泰电机有限公司 | A kind of ultrahigh speed electromagnet and component |
| CN209232239U (en) * | 2018-10-09 | 2019-08-09 | 赵晓斌 | A kind of electromagnetic induction experiment instrument |
| CN110954851A (en) * | 2019-12-13 | 2020-04-03 | 国网山东省电力公司烟台供电公司 | Quick checking instrument for reverse connection of inlet and outlet wires of electric energy meter |
| CN211237466U (en) * | 2019-12-28 | 2020-08-11 | 侯崇岳 | High school physics electromagnetic induction presentation device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT517620B1 (en) * | 2015-07-07 | 2017-03-15 | Omicron Electronics Gmbh | Method and test device for testing a wiring of transducers |
-
2020
- 2020-09-16 CN CN202010972637.2A patent/CN112098684B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701978A (en) * | 2009-11-13 | 2010-05-05 | 曾碚勇 | Current detecting device on high-voltage and ultrahigh-voltage power transmission line and detecting method thereof |
| CN204008955U (en) * | 2014-07-11 | 2014-12-10 | 国家电网公司 | CT polarity measurement device |
| CN106842645A (en) * | 2017-02-28 | 2017-06-13 | 合肥鑫晟光电科技有限公司 | A kind of control method for adsorbing bar, vacuum abutted equipment and vacuum abutted equipment |
| CN208077717U (en) * | 2018-01-11 | 2018-11-09 | 深圳市宗泰电机有限公司 | A kind of ultrahigh speed electromagnet and component |
| CN209232239U (en) * | 2018-10-09 | 2019-08-09 | 赵晓斌 | A kind of electromagnetic induction experiment instrument |
| CN110954851A (en) * | 2019-12-13 | 2020-04-03 | 国网山东省电力公司烟台供电公司 | Quick checking instrument for reverse connection of inlet and outlet wires of electric energy meter |
| CN211237466U (en) * | 2019-12-28 | 2020-08-11 | 侯崇岳 | High school physics electromagnetic induction presentation device |
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| CN112098684A (en) | 2020-12-18 |
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