CN220438532U - Mutual inductor measuring device - Google Patents
Mutual inductor measuring device Download PDFInfo
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- CN220438532U CN220438532U CN202321758497.4U CN202321758497U CN220438532U CN 220438532 U CN220438532 U CN 220438532U CN 202321758497 U CN202321758497 U CN 202321758497U CN 220438532 U CN220438532 U CN 220438532U
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- 230000005611 electricity Effects 0.000 claims abstract description 69
- 230000000149 penetrating effect Effects 0.000 claims abstract description 42
- 239000004020 conductor Substances 0.000 claims abstract description 37
- 238000009434 installation Methods 0.000 claims description 25
- 239000010410 layer Substances 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 5
- 239000011229 interlayer Substances 0.000 claims description 2
- 230000007935 neutral effect Effects 0.000 claims 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses a transformer measuring device, which comprises a cabinet body, wherein an incoming line distribution main switch, a power consumption control switch, a life power consumption control switch, a power consumption metering electric energy meter and a life power consumption metering electric energy meter are arranged in the cabinet body; the distribution line stretches into the cabinet body, the live wire of the distribution line is connected with the incoming wire distribution main switch and then is divided into a power electricity utilization branch and a life electricity utilization branch, each phase line of the power electricity utilization branch is connected with the power electricity utilization control switch through a penetrating conductor of the penetrating transformer, and the output end of the power electricity utilization control switch is externally connected with a power cable; the secondary terminal of the penetrating transformer is connected with a power consumption metering electric energy meter; the household electricity branch is sequentially connected with a household electricity metering electric energy meter and a household electricity control switch, and the output end of the household electricity control switch is externally connected with a household electricity branch cable. The utility model effectively realizes a standardized transformer measuring device.
Description
Technical Field
The utility model relates to a transformer measuring device, and belongs to the technical field of electric power measurement.
Background
With the appearance of large electric equipment such as domestic charging piles, the measurement of heavy load is increased increasingly, and a current transformer is an important metering device for realizing heavy current measurement. At present, although the measuring devices combined by the mutual inductors are more, a standardized product is not formed, the electrical structure is disordered, the types are various, and a plurality of problems are brought to the manufacturing of enterprises and the field installation of users: the variety is many, the electrical connection is complex, so that the production efficiency of enterprises is low and the cost is high; the user is installed unchanged, is easy to make mistakes, and hides certain potential safety hazards and the risk of power metering misalignment. Therefore, research and design of a standardized transformer measuring device are urgently needed, and industry standardized products are formed.
Disclosure of Invention
The utility model provides a transformer measuring device, which solves the problems disclosed in the background art.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the transformer measuring device comprises a cabinet body, wherein an incoming line distribution main switch, a power consumption control switch, a life power consumption control switch, a power consumption metering electric energy meter and a life power consumption metering electric energy meter are arranged in the cabinet body;
the distribution line stretches into the cabinet body, the live wire of the distribution line is connected with the incoming wire distribution main switch and then is divided into a power electricity utilization branch and a life electricity utilization branch, each phase line of the power electricity utilization branch is connected with the power electricity utilization control switch through a penetrating conductor of the penetrating transformer, and the output end of the power electricity utilization control switch is externally connected with a power cable; the secondary terminal of the penetrating transformer is connected with a power consumption metering electric energy meter;
the household electricity branch is sequentially connected with a household electricity metering electric energy meter and a household electricity control switch, and the output end of the household electricity control switch is externally connected with a household electricity branch cable.
The cabinet body is internally provided with a zero line busbar and a grounding terminal, the distribution circuit, the wires of the external power cable and the wires of the external household electric branch cable all comprise a zero line and a ground wire, the zero line is connected with the zero line busbar through the zero line terminal, the ground wire is connected with the ground wire terminal, and the ground wire terminal is connected with the cabinet body.
The cabinet body is the cabinet body that is equipped with front and back two doors, and the internal installation front bezel and the installation back bezel that are provided with of cabinet, distribution master switch, power electricity consumption control switch, life electricity consumption control switch, core transformer, zero line busbar, zero line terminal and earthing terminal all set up in the installation front bezel openly, and power electricity consumption measurement ammeter and life electricity measurement ammeter set up in the installation back plate openly, and all electric connection wire all set up in the intermediate layer space between installation front bezel and the installation back plate.
The power distribution main switch and the zero line busbar are distributed in a layered mode in the cabinet body, all the penetrating transformers are located on the first layer, and the power electricity utilization control switch and the life electricity utilization control switch are located on the third layer.
The lower pile head of the incoming line distribution main switch and the upper pile head of the power utilization control switch are respectively provided with a plane splayed transition connection copper bar connected with the through conductor.
The three-phase mutual inductor box is arranged in the cabinet body, the three through-core mutual inductors are all arranged in the three-phase mutual inductor box, the three through-core mutual inductors are distributed on the same vertical plane in a delta shape, the left-right arrangement is based on the principle that the through-core holes of the middle through-core mutual inductors are not shielded, the left-right spacing is minimum, and the up-down arrangement is based on the principle that the edges of the up-down through-core mutual inductors are not touched, and the up-down spacing is minimum; the two ends of the penetrating conductor of the penetrating transformer extend out of the top and the bottom of the three-phase transformer box respectively.
The distribution of all the through conductors is in a central symmetrical structure; the center penetrating conductor of the middle penetrating transformer is a straight conductor in a shape of a Chinese character 'yi'; the middle parts of the penetrating conductors of the penetrating transformers at the two sides are parallel to the straight conductors in a straight shape, and the two ends of the penetrating conductors are obliquely bent towards the straight conductors in the straight shape.
The side of the three-phase transformer box is provided with a socket/wiring terminal, the socket/wiring terminal is connected with a secondary terminal of the core transformer, and the socket/wiring terminal is externally connected with a power consumption meter.
The front of the three-phase transformer box is provided with a nameplate window, and the nameplate window is opposite to the nameplate of the through transformer.
The utility model has the beneficial effects that: 1. according to the utility model, an incoming line distribution main switch, a power electricity utilization control switch, a penetration transformer, a life electricity utilization control switch, a power electricity utilization metering ammeter and a life electricity utilization metering ammeter are arranged in a cabinet body, a live line of a distribution line is divided into a power electricity utilization branch and a life electricity utilization branch after passing through the distribution main switch, the power electricity utilization branch sequentially passes through the penetration transformer and the power electricity utilization control switch and then is externally connected with a power cable, the power electricity utilization metering ammeter is used for power electricity utilization metering, the life electricity utilization branch sequentially passes through the life electricity utilization metering ammeter and then is externally connected with a life electricity utilization branch cable, and a standardized transformer measuring device is effectively realized; 2. the through-core transformer is arranged in the three-phase transformer box and is designed into an independent metering device, and the required volume is reduced by optimizing the distribution positions of the through-core transformer and the through-core conductor and integrally designing the installation of the transformer, so that the through-core transformer is an optimized standardized electrical structure which can form a standard interface with a connected switch, the equipment volume of the transformer measuring device can be reduced, the electrical safety is improved, the production efficiency is improved in large-scale production, and the social resource utilization rate is improved.
Drawings
Fig. 1 is an electrical structure of a transformer measuring device:
FIG. 2 is a schematic diagram of the electrical structure of a three-phase transformer metering box;
FIG. 3 is a schematic diagram of a three-phase transformer metering box nameplate window arrangement;
FIG. 4 is a schematic side view of a three-phase transformer metering box;
fig. 5 is a schematic front view of a plate of the transformer measuring device after installation.
Description of the embodiments
The utility model is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.
As shown in fig. 1, the transformer measuring device comprises a cabinet body 1, wherein an incoming line distribution main switch 3, a power consumption control switch 5, a life consumption control switch 8, a power consumption metering ammeter 13 and a life consumption metering ammeter 14 are arranged in the cabinet body 1.
The distribution line 2 stretches into the cabinet body 1, the live wire of the distribution line 2 is connected with the incoming line distribution main switch 3 and then is divided into a power electricity utilization branch and a life electricity utilization branch, each phase line of the power electricity utilization branch is connected with the power electricity utilization control switch 5 through a penetrating conductor 17 of the penetrating transformer 4, and the output end of the power electricity utilization control switch 5 is externally connected with a power cable; the secondary terminal of the penetrating transformer 4 is connected with the power consumption metering electric energy meter 13 through a transformer junction box 15. The household electricity branch is sequentially connected with the household electricity metering electric energy meter 14 and the household electricity control switch 8, and the output end of the household electricity control switch 8 is externally connected with a household electricity branch cable.
The three core transformers 4 are standardized products, the appearance is fixed, three core transformers 4 respectively correspond to three phase lines of a live wire, as shown in fig. 2, the three core transformers 4 are all arranged in a three-phase transformer box 16, the three core transformers 4 are distributed according to the shape of a Chinese character 'pin' on the same vertical plane, the left-right arrangement is based on the principle that the core holes of the middle core transformers 4 are not shielded, the left-right spacing is minimum, and the up-down arrangement is based on the principle that the edges of the upper core transformers 4 are not touched and the lower core transformers 4 are the minimum; the structural design ensures that the occupied space is minimum, and the volume of the device is reduced, thereby reducing the generation cost.
The two ends of the penetrating conductor 17 of the penetrating transformer 4 extend out from the top and the bottom of the three-phase transformer box 16 respectively, and the distributed shapes of the penetrating conductors 17 of the three penetrating transformers 4 are in a central symmetrical structure, specifically: the center penetrating conductors 17 of the middle penetrating transformers 4 are straight conductors in a shape of a Chinese character 'yi', the middle parts of the center penetrating conductors 17 of the two side penetrating transformers 4 are parallel to the straight conductors in a shape of a Chinese character 'yi', and the two ends of the center penetrating conductors are bent obliquely to the straight conductors in a shape of a Chinese character 'yi'. This structural design ensures vertical up and down through conductors 17, coupling (dimensional matching) of the access terminals with the connected switch terminals, and electrical process aesthetics.
The three-phase transformer box 16 can be formed by injection molding, and when injection molding is performed, the clamping structure is simultaneously molded in the three-phase transformer box 16, and the three-phase transformer box is distributed according to the Chinese character 'pin', and the penetrating transformer 4 is directly clamped into the clamping structure. As shown in fig. 3, the front surface of the three-phase transformer box 16 is provided with three nameplate windows 18, each nameplate window 18 is opposite to one nameplate of the penetrating transformer 4, as shown in fig. 4, a socket/connecting terminal 19, specifically a 6-core socket/connecting terminal, is arranged on the side surface of the three-phase transformer box 16, the socket/connecting terminal 19 is connected with a secondary terminal of the penetrating transformer 4 through a wire, and the socket/connecting terminal 19 is externally connected with the power consumption metering electric energy meter 13.
The distribution of the core-through transformers 4 and the distribution of the core-through conductors 17 are optimized in the three-phase transformer box 16, so that the size is small, the materials are saved, the electric process is attractive, the visibility is high, and the quality of electric power products is improved. The mechanism in the three-phase transformer box 16 can be used as a standard component, so that the on-site installation efficiency of the transformer can be improved, the labor is saved, bare copper bars can be adopted, the formed conductor is manufactured through a mechanical process, the resources are saved, the working microenvironment of the through-core transformer 4 can be improved, the reliability and the service life of the through-core transformer 4 are improved, the electricity stealing behavior by illegally changing the line of the through-core transformer 4 can be prevented, and the electricity safety is improved.
The utility model arranges the penetrating transformer 4 in the three-phase transformer box 16, designs as an independent metering device, reduces the required volume by optimizing the distribution positions of the penetrating transformer 4 and the penetrating conductor 17, is an optimized standardized electrical structure which can form a standard interface with a connected switch, can reduce the equipment volume of the transformer metering device, improve the electrical safety, realize large-scale production and improve the production efficiency and the social resource utilization rate.
The distribution line 2, the wires of the external power cable and the wires of the external household electric branch cable not only comprise live wires, but also comprise zero wires and ground wires, so that the zero wire busbar 6 and the ground terminal are further arranged in the cabinet body 1, the zero wires are connected with the zero wire busbar 6 through the zero wire terminal, the ground wires are connected with the ground wire terminal, and the ground wire terminal is connected with the cabinet body 1.
The zero line terminal is provided with a fixed zero line terminal 11 and a track type zero line terminal 9, wherein the zero line of the power distribution line 2 and a lead wire of an external power cable is connected with the zero line busbar 6 through the fixed zero line terminal 11, and the zero line of a lead wire of an external household power branch cable is connected with the zero line busbar 6 through the track type zero line terminal 9; the ground wire terminals also comprise a fixed ground wire terminal 12 and a track type ground wire terminal 10, wherein the distribution circuit 2 and the ground wire of the conducting wire of the external power cable are connected with the fixed ground wire terminal 12, and the ground wire of the conducting wire of the external domestic electric branch cable is connected with the track type ground wire terminal 10.
It can be seen from the figure that all wiring terminals of the distribution line 2 are distributed in a row, wiring terminals of wires of an external power cable are distributed in a row, the electric process attractiveness is met by guaranteeing the flush of the wiring terminals of the cable after installation, the domestic power control switch 8 also adopts a track type structure, and the domestic power control switch 8, the track type zero line terminal 9 and the track type ground wire terminal 10 are installed on the same C-shaped track.
The lower pile head of the incoming line distribution main switch 3 and the upper pile head of the power utilization control switch 5 are respectively provided with a plane splayed transition connection copper bar connected with the through conductor 17, so that the distance of the primary winding of the through transformer 4 is increased, and the centering of the through hole of the splayed transition copper bar wiring terminal of the upper and lower switches of the splayed transition copper bar of the through transformer 4 is ensured to be vertically installed through the through conductor 17.
The cabinet body 1 is a metal cabinet body 1 and can be used as a grounding row, a front door and a rear door are adopted, a front installation plate and a rear installation plate which are opposite are installed in the cabinet body 1, the structure in fig. 2 is defined as an independent metering device, a power distribution main switch, a power utilization control switch 5, a life utilization control switch 8, an independent metering device, a zero line busbar 6, a zero line terminal and a grounding terminal are all installed on the front surface of the front installation plate, a transformer junction box 15, a power utilization metering ammeter 13 and a life utilization metering ammeter 14 are installed on the front surface of the rear installation plate (see fig. 5), and all electric connection wires are arranged in an interlayer space between the front installation plate and the rear installation plate, so that only elements of the front installation plate and the rear installation plate are not provided with cables, and the aesthetic property of an electric process is ensured; in order to facilitate threading, threading holes 7 are formed in the front mounting plate and the rear mounting plate, and threading holes 7 are formed near, namely, if the track type zero line terminal 9 needs to be connected, threading holes 7 are formed near the track type zero line terminal 9.
The whole cabinet body 1 is distributed in layers, the distribution main switch and the zero line busbar 6 are positioned on a first layer, all the through transformers 4 (namely independent metering devices) are positioned on a second layer, and the power electricity utilization control switch 5 and the life electricity utilization control switch 8 are positioned on a third layer.
The transformer measuring device fills the blank of the type of the device, forms an electrical standardized structure of the measuring device, and meets the requirement of mass production.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.
Claims (9)
1. The transformer measuring device is characterized by comprising a cabinet body, wherein an incoming line distribution main switch, a power consumption control switch, a life power consumption control switch, a power consumption metering electric energy meter and a life power consumption metering electric energy meter are arranged in the cabinet body;
the distribution line stretches into the cabinet body, the live wire of the distribution line is connected with the incoming wire distribution main switch and then is divided into a power electricity utilization branch and a life electricity utilization branch, each phase line of the power electricity utilization branch is connected with the power electricity utilization control switch through a penetrating conductor of the penetrating transformer, and the output end of the power electricity utilization control switch is externally connected with a power cable; the secondary terminal of the penetrating transformer is connected with a power consumption metering electric energy meter;
the household electricity branch is sequentially connected with a household electricity metering electric energy meter and a household electricity control switch, and the output end of the household electricity control switch is externally connected with a household electricity branch cable.
2. The transformer measurement device of claim 1, wherein the cabinet body is further provided with a neutral busbar and a ground terminal, and the distribution line, the wires of the external power cable and the wires of the external domestic power branch cable all comprise a neutral wire and a ground wire, the neutral wire is connected with the neutral busbar through the neutral terminal, the ground wire is connected with the ground terminal, and the ground terminal is connected with the cabinet body.
3. The transformer measuring device according to claim 2, wherein the cabinet body is a cabinet body with front and rear double doors, a front installation plate and a rear installation plate are arranged in the cabinet body, the distribution main switch, the power electricity control switch, the life electricity control switch, the through transformer, the zero line busbar, the zero line terminal and the grounding terminal are all arranged on the front of the front installation plate, the power electricity metering ammeter and the life electricity metering ammeter are arranged on the front of the rear installation plate, and all the electric connection wires are arranged in an interlayer space between the front installation plate and the rear installation plate.
4. The transformer measurement device of claim 2, wherein the cabinet is layered, the distribution main switch and the zero line busbar are positioned on a first layer, all the through transformers are positioned on a second layer, and the power electricity control switch and the life electricity control switch are positioned on a third layer.
5. The transformer measuring device of claim 1, wherein the lower pile head of the incoming line distribution main switch and the upper pile head of the power consumption control switch are both provided with plane splayed transition connection copper bars connected with the through conductors.
6. The transformer measuring device according to claim 1, wherein a three-phase transformer box is further arranged in the cabinet body, three through transformers are all arranged in the three-phase transformer box, the three through transformers are distributed in the same vertical plane in a delta shape, the left-right arrangement is based on the principle that the through holes of the middle through transformers are not shielded, the left-right spacing is minimum, and the up-down arrangement is based on the principle that the edges of the up-down through transformers are not touched and the up-down spacing is minimum; the two ends of the penetrating conductor of the penetrating transformer extend out of the top and the bottom of the three-phase transformer box respectively.
7. The instrument transformer measuring device of claim 6, wherein the distribution of all the through conductors is in a centrosymmetric structure; the center penetrating conductor of the middle penetrating transformer is a straight conductor in a shape of a Chinese character 'yi'; the middle parts of the penetrating conductors of the penetrating transformers at the two sides are parallel to the straight conductors in a straight shape, and the two ends of the penetrating conductors are obliquely bent towards the straight conductors in the straight shape.
8. The instrument transformer measuring device of claim 6, wherein the three-phase instrument transformer box is provided with a socket/connecting terminal on a side surface thereof, the socket/connecting terminal is connected with a secondary terminal of the through-core instrument transformer, and the socket/connecting terminal is externally connected with a power consumption meter.
9. The transformer measurement device of claim 6, wherein a nameplate window is provided on the front face of the three-phase transformer box, the nameplate window facing the nameplate of the feedthrough transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321758497.4U CN220438532U (en) | 2023-07-06 | 2023-07-06 | Mutual inductor measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321758497.4U CN220438532U (en) | 2023-07-06 | 2023-07-06 | Mutual inductor measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220438532U true CN220438532U (en) | 2024-02-02 |
Family
ID=89692522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321758497.4U Active CN220438532U (en) | 2023-07-06 | 2023-07-06 | Mutual inductor measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220438532U (en) |
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2023
- 2023-07-06 CN CN202321758497.4U patent/CN220438532U/en active Active
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