CN112509427A - Training drawing board for electric energy metering wiring - Google Patents
Training drawing board for electric energy metering wiring Download PDFInfo
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- CN112509427A CN112509427A CN202011427391.7A CN202011427391A CN112509427A CN 112509427 A CN112509427 A CN 112509427A CN 202011427391 A CN202011427391 A CN 202011427391A CN 112509427 A CN112509427 A CN 112509427A
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- 238000012549 training Methods 0.000 title claims abstract description 42
- 238000010586 diagram Methods 0.000 claims abstract description 61
- 239000013598 vector Substances 0.000 claims abstract description 58
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 14
- 230000000007 visual effect Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
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- 238000004891 communication Methods 0.000 description 1
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- 238000011156 evaluation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
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- G09B19/00—Teaching not covered by other main groups of this subclass
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/188—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for motors; for generators; for power supplies; for power distribution
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Abstract
The application discloses training drawing board of electric energy measurement wiring includes: the drawing board comprises a drawing board main body, a vector drawing board and a wiring drawing board; the vector drawing board and the wiring drawing board are detachably arranged on the drawing board main body in a sliding manner; the vector diagram board is provided with a vector diagram for electric energy metering, the vector diagram is composed of a hexagonal diagram, a rotatable pointer and a phase reference mark, the rotatable pointer and the phase reference mark are arranged on the hexagonal diagram, the hexagonal diagram is a diagram of a first circle internally and internally connected with a hexagon, and a first scale is arranged on the round edge of the first circle; the wiring drawing board is provided with a wiring circuit for electric energy metering, the wiring circuit is composed of an electric energy metering element and a wire, the electric energy metering element and the wire are provided with LED lamps, the visual effect is visual and obvious, and the training effect can be obviously improved.
Description
Technical Field
The application relates to the technical field of electric energy metering wiring training, in particular to a training drawing board for electric energy metering wiring.
Background
With the development of power systems, the layout and architecture of power lines become increasingly complex, and in order to ensure that operators who measure related services can work correctly at work, the operators need to be evaluated for their abilities. There is a real exercise item to be considered in the ability evaluation: and analyzing and judging the electric energy metering wiring.
In the analysis and discrimination training of electric energy metering wiring, a trainer needs to combine a wiring schematic diagram and a wiring demonstration diagram under an error state, wiring demonstration in the prior art is performed on a simulation screen, and the training mode is not tight in combination with the wiring schematic diagram, wiring demonstration is not visual enough, the visual effect is not obvious, and the training effect is low.
Therefore, providing a training chart board for electric energy metering wiring is a technical problem to be solved urgently by those skilled in the art for effectively developing training.
Disclosure of Invention
In view of this, the present application provides a training chart for electric energy metering wiring, which is used for effectively performing training of analysis and discrimination of electric energy metering wiring.
The application provides a training drawing board of electric energy measurement wiring, include: the drawing board comprises a drawing board main body, a vector drawing board and a wiring drawing board;
the vector drawing board and the wiring drawing board are detachably arranged on the drawing board main body in a sliding manner;
the vector diagram board is provided with a vector diagram for electric energy metering, the vector diagram is composed of a hexagonal diagram, a rotatable pointer and a phase reference mark, the rotatable pointer and the phase reference mark are arranged on the hexagonal diagram, the hexagonal diagram is a diagram of a first circle internally and internally connected with a hexagon, and a first scale is arranged on the round edge of the first circle;
the wiring drawing board is provided with a wiring circuit for electric energy metering, the wiring circuit is composed of an electric energy metering element and a wire, and the electric energy metering element and the wire are both provided with LED lamps.
Optionally, a first sliding groove is arranged on the drawing board main body;
and a first sliding wheel matched with the first sliding groove is arranged on the vector drawing board.
Optionally, a second sliding groove is arranged on the drawing board main body;
and a second sliding wheel matched with the second sliding groove is arranged on the wiring drawing board.
Optionally, the first sliding groove and the second sliding groove are arranged side by side on the drawing board main body.
Optionally, a third sliding groove is further disposed on the drawing board main body;
the third sliding groove is matched with the second sliding wheel;
the distance between the third sliding groove and the bottom of the drawing board main body is smaller than the distance between the second sliding groove and the bottom plate of the drawing board main body.
Optionally, the third sliding groove includes: a third upper sliding groove and a third lower sliding groove;
a shielding piece is arranged at the third upper sliding groove;
the shielding piece is used for shielding the area between the third upper sliding groove and the third lower sliding groove.
Optionally, the bottom of the drawing board main body is provided with a moving part.
Optionally, a writing area for writing is provided on the drawing board main body.
Optionally, the vector map comprises: the bottom plate, the rotating assembly and the transparent rotating plate;
the hexagonal pattern is arranged on the bottom plate;
the transparent rotating plate and the rotatable pointer are rotatably connected with the bottom plate through the rotating assembly;
the rotatable pointer, the transparent rotating plate and the bottom plate are distributed from top to bottom.
Optionally, the bottom plate is an iron plate;
the phase reference mark is made of a magnetic material.
According to the technical scheme, the method has the following advantages:
the application provides a training drawing board of electric energy measurement wiring, includes: the drawing board comprises a drawing board main body, a vector drawing board and a wiring drawing board; the drawing board main body is detachably provided with a vector drawing board and a wiring drawing board in a sliding manner; the vector diagram board is provided with a vector diagram for electric energy metering, the vector diagram is composed of a hexagonal diagram, a rotatable pointer and a phase reference mark, the rotatable pointer and the phase reference mark are arranged on the hexagonal diagram, the hexagonal diagram is a diagram of a first circle internally and internally connected with a hexagon, and a first scale is arranged on the circular edge of the first circle; the wiring drawing board is provided with a wiring circuit for electric energy metering, the wiring circuit is composed of an electric energy metering element and a wire, and the electric energy metering element and the wire are both provided with LED lamps.
In this application, the trainer can confirm the circuit type of training through the rotatable pointer on the vector drawing board, phase place reference mark and first scale, then the circuit type of corresponding through the wiring circuit on the wiring drawing board demonstrates of working a telephone switchboard, be similar to the wiring circuit in kind, student's understanding can be strengthened, the demonstration is directly perceived, and set up the LED lamp on each part (electric energy metering element and wire) on the wiring circuit, the demonstration of working a telephone switchboard of circuit is realized to the bright of going out through control LED lamp, visual effect is directly perceived, it is obvious, can show the promotion training effect.
Drawings
Fig. 1 is a schematic structural diagram of a training chart for electric energy metering wiring according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a hexagonal diagram in a vector diagram according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a wiring circuit for low-voltage single-phase active direct measurement in the embodiment of the present application;
FIG. 4 is a schematic diagram of a wiring circuit for low-voltage single-phase active measurement with TA in the embodiment of the present application;
FIG. 5 is a schematic diagram of a low-voltage three-phase four-wire connection circuit with TA active measurement according to an embodiment of the present application;
FIG. 6 is a schematic diagram of a wiring circuit for measuring active power of a high-voltage three-phase four-wire belt TA and a TV in the embodiment of the present application;
FIG. 7 is a schematic diagram of a wiring circuit of the high-voltage three-phase four-wire belt TA, TV active power and mechanical reactive power measurement in the embodiment of the application;
FIG. 8 is a schematic diagram of a wiring circuit for measuring active power of a high-voltage three-phase three-wire belt TA and a TV in the embodiment of the application;
FIG. 9 is a schematic diagram of a wiring circuit of the high-voltage three-phase three-wire belt TA, TV active power and mechanical reactive power measurement in the embodiment of the application;
wherein the reference numbers are as follows:
1. a drawing board main body; 2. a vector drawing board; 3. a hexagonal pattern; 4. a wiring pattern board; 5. a wiring circuit; 6. a third sliding groove; 7. a moving member; 11. a voltage pointer; 12. a current pointer; 13. a first scale; 14. a second scale; 15. a phase reference mark; 16. a first circular shape; 17. the second circle.
Detailed Description
The embodiment of the application provides a training drawing board for electric energy metering wiring, which is used for effectively developing the training of analysis and judgment of the electric energy metering wiring.
The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
The embodiment of the present application provides a first embodiment of a training chart for electric energy metering wiring, and refer to fig. 1 and fig. 2 in detail.
In this embodiment, an electric energy measurement wiring training drawing board includes: a panel body 1, a vector panel 2 and a wiring panel 4; a vector drawing board 2 and a wiring drawing board 4 are detachably arranged on the drawing board main body 1 in a sliding manner; the vector diagram board 2 is provided with a vector diagram for electric energy metering, the vector diagram is composed of a hexagonal diagram 3, a rotatable pointer and a phase reference mark 15 which are arranged on the hexagonal diagram 3, the hexagonal diagram 3 is a diagram of a first circle 16 internally inscribed with a hexagon, and the circle edge of the first circle 16 is provided with a first scale 13; the wiring drawing board 4 is provided with a wiring circuit 5 for electric energy metering, the wiring circuit 5 is composed of an electric energy metering element and a lead, and the electric energy metering element and the lead are both provided with LED lamps.
The vector drawing board 2 and the wiring drawing board 4 in the embodiment are slidably arranged on the drawing board main body 1, and the vector drawing board 2 and the wiring drawing board 4 are detachably arranged, so that the wiring drawing boards 4 of different circuit types can be installed by matching with the circuit type of the vector drawing board 2.
The rotatable pointer and the phase reference mark 15 in the hexagonal figure 3 can set the magnitude and the direction of voltage and current, and can be repeatedly used, so that the training workload is reduced, and the training efficiency is improved.
The LED lamps on each part (electric energy metering element and wire) in the wiring circuit 5 are connected with an independent switch for controlling the on-off of the LED lamps, and different LED lamp groups form different circuit type patterns, namely the patterns are drawn by controlling the on-off of the LED lamps.
The LED lamps are arranged on the electric energy metering elements (such as a voltage transformer, a current transformer, an electric energy meter element and the like) and the wires (such as a primary wire and a secondary wire and the like) in the wiring circuit 5.
In this embodiment, the trainer can confirm the circuit type of training through the rotatable pointer on the vector drawing board 2, phase place reference mark 15 and first scale 13, then carry out the demonstration of working a telephone switchboard to the circuit type that corresponds through wiring circuit 5 on the wiring drawing board 4, similar to wiring circuit 5 in kind, student's understanding can be strengthened, the demonstration is directly perceived, and set up the LED lamp on each part (electric energy metering element and wire) on wiring circuit 5, the demonstration of working a telephone switchboard of realizing wiring circuit 5 through the bright demonstration of going out of control LED lamp, visual effect is directly perceived, it is obvious, can show the promotion training effect.
The above is an embodiment of a training chart for electric energy metering wiring provided in the present application, and the following is an embodiment of a training chart for electric energy metering wiring provided in the present application, specifically referring to fig. 1 to 9.
In this embodiment, an electric energy measurement wiring training drawing board includes: a panel body 1, a vector panel 2 and a wiring panel 4; a vector drawing board 2 and a wiring drawing board 4 are detachably arranged on the drawing board main body 1 in a sliding manner; the vector diagram board 2 is provided with a vector diagram for electric energy metering, the vector diagram is composed of a hexagonal diagram 3, a rotatable pointer and a phase reference mark 15 which are arranged on the hexagonal diagram 3, the hexagonal diagram 3 is a diagram of a first circle 16 internally inscribed with a hexagon, and the circle edge of the first circle 16 is provided with a first scale 13; the wiring drawing board 4 is provided with a wiring circuit 5 for electric energy metering, the wiring circuit 5 is composed of an electric energy metering element and a lead, and the electric energy metering element and the lead are both provided with LED lamps.
The drawing board main body 1 in this embodiment is made of 201 stainless steel with a thickness of 1.5mm, the main display area for mounting the vector drawing board 2 and the wiring drawing board 4 on the drawing board main body 1 adopts an upper layer structure, the first layer is used for mounting the vector drawing board 2 and the wiring drawing board 4, and the second layer is a white board (i.e., a writing area) for writing characters.
In this embodiment, a first sliding groove and a second sliding groove are provided in parallel on the drawing board main body 1, the first sliding groove is used for providing the vector drawing board 2, the second sliding groove is used for providing the wiring drawing board 4, and a first sliding wheel and a second sliding wheel corresponding to the first sliding groove and the second sliding groove are correspondingly provided on the vector drawing board 2 and the wiring drawing board 4.
The whiteboard can be reasonably used by flexibly setting the positions of the vector drawing board 2 and the wiring drawing board 4 on the subject of the drawing board in the training process.
It is understood that the first slide groove and the second slide groove are provided with the same groove width, and the positions of the vector diagram board 2 and the connection diagram board 4 can be adjusted. In the embodiment, the width of the first sliding groove and the second sliding groove is 10mm, and the distance between the grooves is 10 mm. It should be understood that the above description is only an exemplary illustration, and those skilled in the art can flexibly set the setting according to the setting requirement, and the setting is not limited or described herein.
Since the number of circuit types is large and the number of the wiring pattern boards 4 is large, only one wiring pattern board 4 is used in general display, the wiring pattern board 4 which is not used is placed on the third sliding groove 6, and the third sliding groove 6 is arranged on the position close to the bottom of the pattern board main body 1 in the embodiment.
In order to shield dust and prevent the student from being distracted from the non-lecture contents, a shielding member is provided between the third upper sliding groove and the third lower sliding groove of the third sliding groove 6 in this embodiment, and the shielding member may shield an area between the third upper sliding groove and the third lower sliding groove.
It can be understood that the third lower sliding groove is provided in the shape of a full groove having a depth of 5 mm. The third upper sliding groove is a point-shaped movable groove, so that the wiring drawing board 4 is convenient to extract and store.
Specifically, the shielding member is a white shielding cloth in this embodiment.
Specifically, in the present embodiment, the moving member 7 is disposed at the bottom of the drawing board main body 1, the moving member 7 may be a pulley, and for the arrangement of the pulley, a person skilled in the art may flexibly select the moving member according to the structure of the drawing board main body 1, and is not limited specifically herein.
The vector diagram 2 in this embodiment specifically includes: the bottom plate, the rotating assembly and the transparent rotating plate; a hexagonal picture 3 is arranged on the bottom plate; the transparent rotating plate and the rotatable pointer are rotatably connected with the bottom plate through the rotating assembly; the rotatable pointer, the transparent rotating plate and the bottom plate are distributed from top to bottom.
The transparent rotating plate is arranged on the bottom plate, and in order to see the position of the rotatable pointer on the hexagonal drawing 3, the transparent rotating plate is provided, the specification of the transparent rotating plate can be various structures, in this embodiment, the shape of the transparent rotating plate is specifically set to be circular, and the size of the transparent rotating plate is the same as that of the first circle 16 in the hexagonal drawing 3. The material of the transparent rotating plate is organic glass. It is understood that the specification, material and the like of the transparent rotating plate in the present embodiment are schematic illustrations, and those skilled in the art can set the specification according to specific needs.
The rotatable pointer is rotatably connected to the base plate via a rotating assembly, so that the pointer can rotate along the rotating assembly to indicate different positions on the hexagonal figure 3.
Further, in the present embodiment, in order to display the voltage and the current at the same time, the voltage and the current are distinguished, specifically, a hexagonal figure is inscribed in the first circle 16, and a second circle 17 is concentrically arranged with the first circle 16, a radius of the second circle 17 is smaller than a radius of the first circle 16, a second scale 14 is arranged on the second circle 17, and the corresponding first circle 16 can be used for indicating the voltage, and the second circle 17 is used for indicating the current.
As shown in fig. 2, the first scale 13 of the first circle 16 in the hexagonal fig. 3 is arranged similarly to the clock scale, and 60 scales are arranged along the circular edge of the first circle 16, each scale is 6 degrees and has a total of 360 degreesThree diagonal connecting lines are arranged in the corresponding first circle 16, two pointing arrows are arranged at two ends of each diagonal, and the specific pointing directions of the arrow vectors are respectively 1 o' clock
3 o' clock is
5 o' clock is
At 7 o' clock is
9 o' clock is
11 o' clock is
The above
Etc. are phase reference marks 15. It will be appreciated that the arrangement of the first scale 13 and the phase reference mark 15 described above is merely illustrative and that other arrangements may be provided by those skilled in the art.
It is understood that the second scale 14 is disposed on the same first scale 13, and reference may be made to the above description for details, which are not described herein again.
In this embodiment, three vector arrows forming 120 ° with each other are generated at the center of the second circle 17 as reference coordinates, the hour scale of the 12-hour clock is used as a reference system, and the yellow arrows pointing to 12:00 points are vectors
And 4, pointing: green arrow of 00 is vector
Red color pointing to 8:00The arrows being vectors
It can be understood that the widths of the various line patterns in the hexagonal figure 3 are: the hexagon, the first circle 16 and the second circle 17 are 2mm, the reference coordinate vector is 5mm, the other vectors are 3mm, and the scale and the rest are 1 mm.
Further, in the present embodiment, the number of the voltage indicators 11 (i.e. the rotatable indicators having the length of the radius of the first circle 16) is 3, and the 3 voltage indicators 11 are distinguished by colors, which are red, yellow and green, respectively. The number of current fingers 12 (i.e. rotatable fingers having a length equal to the radius of the second circle 17) is 3, 3 different current fingers 12 are distinguished by different colors, red, yellow and green, respectively, and the distribution of the current fingers 12 and the voltage fingers 11 on the rotating assembly is from top to bottom, namely the current fingers 12 to the current fingers 12. The width of the voltage indicator 11 is 8-10mm, and the width of the current indicator 12 is 4-5mm, which are only schematic illustrations, and can be specifically adjusted according to needs, mainly for the trainee to see clearly.
In this embodiment, it is also possible to provide the voltage indicators 11 with a length of half a side length of the panel, where the number of the longer voltage indicators 11 is 2, and the colors are yellow and red, respectively.
The vector drawing board 2 adopts a 220V/-12V power supply device and is arranged at the lower right corner of the front surface of the drawing board main body 1. In order to ensure safety, the power supply device is wrapped by a protection box, a three-hole plug is adopted for the power supply, and the drawing board main body 1 is connected with a ground wire.
Specifically, the bottom plate of the vector diagram board 2 in this embodiment is an iron plate; the phase reference marker 15 is made of a magnetic material.
It is understood that the rotating component in this embodiment may be a rotating shaft or a radial bearing, etc., and those skilled in the art can select the rotating component as needed, which will not be described herein.
As shown in fig. 3 to 9, the wiring circuit 5 may have a structure of 7 circuit types. The method specifically comprises the following steps: firstly, directly measuring low-voltage single-phase active power; secondly, low-voltage single-phase TA active power measurement; thirdly, low-voltage three-phase four-wire active measurement with TA; fourthly, active measurement of the high-voltage three-phase four-wire belt TA and TV is carried out; measuring active power and mechanical reactive power of the high-voltage three-phase four-wire belt TA and TV; sixthly, active measurement of the high-voltage three-phase three-wire with TA and TV is carried out; and seventhly, measuring active power and mechanical reactive power of the high-voltage three-phase three-wire belt TA and TV.
Further, the wiring diagram board 4 in the present embodiment further includes: an alarm device; the alarm device is connected with the wiring circuit 5. In the process of 'wiring demonstration', when dangerous operations such as short circuit of voltage and open circuit of current loop occur, an alarm sound is given.
Specifically, in this embodiment, the external power supply of the wiring circuit 5 is a 12V dc power supply, and the operation safety performance is high.
In this embodiment, the trainer can confirm the circuit type of training through the rotatable pointer on the vector drawing board 2, phase place reference mark 15 and first scale 13, then carry out the demonstration of working a telephone switchboard to the circuit type that corresponds through wiring circuit 5 on the wiring drawing board 4, similar to wiring circuit 5 in kind, student's understanding can be strengthened, the demonstration is directly perceived, and set up the LED lamp on each part (electric energy metering element and wire) on wiring circuit 5, the demonstration of working a telephone switchboard of realizing wiring circuit 5 through the bright demonstration of going out of control LED lamp, visual effect is directly perceived, it is obvious, can show the promotion training effect.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A training chart board for electric energy metering wiring is characterized by comprising: the drawing board comprises a drawing board main body, a vector drawing board and a wiring drawing board;
the vector drawing board and the wiring drawing board are detachably arranged on the drawing board main body in a sliding manner;
the vector diagram board is provided with a vector diagram for electric energy metering, the vector diagram is composed of a hexagonal diagram, a rotatable pointer and a phase reference mark, the rotatable pointer and the phase reference mark are arranged on the hexagonal diagram, the hexagonal diagram is a diagram of a first circle internally and internally connected with a hexagon, and a first scale is arranged on the round edge of the first circle;
the wiring drawing board is provided with a wiring circuit for electric energy metering, the wiring circuit is composed of an electric energy metering element and a wire, and the electric energy metering element and the wire are both provided with LED lamps.
2. The training chart board of electric energy metering wiring of claim 1, wherein the chart board main body is provided with a first sliding groove;
and a first sliding wheel matched with the first sliding groove is arranged on the vector drawing board.
3. The training chart board of electric energy metering wiring of claim 2, wherein the chart board main body is provided with a second sliding groove;
and a second sliding wheel matched with the second sliding groove is arranged on the wiring drawing board.
4. The training chart for electric energy metering wiring according to claim 3, wherein the first sliding groove and the second sliding groove are provided side by side on the chart main body.
5. The training chart board of electric energy metering wiring of claim 4, wherein the chart board main body is further provided with a third sliding groove;
the third sliding groove is matched with the second sliding wheel;
the distance between the third sliding groove and the bottom of the drawing board main body is smaller than the distance between the second sliding groove and the bottom plate of the drawing board main body.
6. The training chart board of electric energy metering wiring of claim 5, wherein the third sliding groove comprises: a third upper sliding groove and a third lower sliding groove;
a shielding piece is arranged at the third upper sliding groove;
the shielding piece is used for shielding the area between the third upper sliding groove and the third lower sliding groove.
7. The training chart for electric energy metering wiring as recited in claim 1, wherein a moving member is provided on a bottom of the chart main body.
8. The training chart for electric energy metering wiring as recited in claim 1, wherein a writing area for writing is provided on the chart main body.
9. The training chart for electric energy metering wiring of claim 1, wherein the vector chart comprises: the bottom plate, the rotating assembly and the transparent rotating plate;
the hexagonal pattern is arranged on the bottom plate;
the transparent rotating plate and the rotatable pointer are rotatably connected with the bottom plate through the rotating assembly;
the rotatable pointer, the transparent rotating plate and the bottom plate are distributed from top to bottom.
10. The training chart board for electric energy metering wiring of claim 9, wherein the base plate is an iron plate;
the phase reference mark is made of a magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011427391.7A CN112509427A (en) | 2020-12-09 | 2020-12-09 | Training drawing board for electric energy metering wiring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011427391.7A CN112509427A (en) | 2020-12-09 | 2020-12-09 | Training drawing board for electric energy metering wiring |
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| CN112509427A true CN112509427A (en) | 2021-03-16 |
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| CN202011427391.7A Pending CN112509427A (en) | 2020-12-09 | 2020-12-09 | Training drawing board for electric energy metering wiring |
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2020
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