CN218997431U - Miniaturized high-voltage metering cabinet - Google Patents
Miniaturized high-voltage metering cabinet Download PDFInfo
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- CN218997431U CN218997431U CN202223507809.2U CN202223507809U CN218997431U CN 218997431 U CN218997431 U CN 218997431U CN 202223507809 U CN202223507809 U CN 202223507809U CN 218997431 U CN218997431 U CN 218997431U
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Abstract
The utility model provides a miniaturized high-voltage metering cabinet, including instrument box, the cabinet body, business turn over line sleeve pipe, voltage transformer, current transformer, high-voltage fuse, voltage sensor, CT copper busbar and PT copper busbar, the instrument box is located cabinet body top, business turn over line sleeve pipe, voltage transformer, current transformer, high-voltage fuse, voltage sensor, CT copper busbar and PT copper busbar are located cabinet body, business turn over line sleeve pipe fixed mounting is on cabinet body lateral wall, voltage transformer hoists in cabinet body cavity top, voltage sensor is located cabinet body inner chamber middle rear portion, high-voltage fuse installs between voltage transformer and voltage sensor; the current transformer is horizontally arranged at the bottom of the inner cavity of the cabinet body, the CT copper bus fixedly connects the current transformer with the wire inlet and outlet sleeves on the left side and the right side, and the PT copper bus fixedly connects the current transformer with the voltage sensor. The utility model has reasonable layout, small volume, and high safety and reliability, and the safety distance of the electrified body meets the requirement.
Description
Technical Field
The utility model belongs to the technical field of metering cabinets, and particularly relates to a miniaturized high-voltage metering cabinet.
Background
The metering cabinet generally refers to an electric energy metering cabinet, is a cabinet body provided with a special metering device, and is a special cabinet for metering and managing the electricity consumption of a charging power user. In order to facilitate the periodic verification and maintenance of the current transformer and the voltage transformer arranged in the metering cabinet, the metering cabinet can only be made into air insulation.
It is well known that in power distribution systems, SF is currently available 6 The gas-insulated ring main unit is widely applied to distribution stations and box-type substations of load centers such as residential communities, high-rise buildings, large public buildings, factory enterprises and the like due to maintenance-free, small size and safe and reliable performance, has wide application range and is an indispensable device in a power distribution network. Due to SF 6 Excellent gas insulation properties, so that SF with rated voltage of 24kV and 12kV 6 The volume of the gas-insulated ring main unit can be the same (for example RM6 SF manufactured by Schneider corporation) 6 Gas-insulated ring main unit), and with SF 6 The metering cabinet used with the gas-insulated ring main unit is an air-insulated metering cabinet, so that the volume of the 24kV metering cabinet is difficult to be the same as that of the 12kV metering cabinet in order to ensure the safety distance of 24kV electrified bodies, and particularly when 3 voltage transformers and 3 current transformers are configured, the safety distance of the electrified bodies of the metering cabinet cannot meet the requirements, and the cabinet body is large in volume and safeThe reliability is poor.
Technical defects existing in the existing metering cabinet are that: the safety distance of the electrified body cannot meet the requirement, so that the cabinet body is large in size, poor in safety reliability and difficult to be used commonly in 24kV and 12kV metering cabinets.
Disclosure of Invention
In order to solve the defects that the prior metering cabinet has large cabinet body volume, poor safety reliability and difficult universality of 24kV and 12kV metering cabinets caused by the fact that the safety distance of the electrified body cannot meet the requirement, the utility model provides the miniaturized high-voltage metering cabinet which is reasonable in layout, high in safety reliability and universal for 24kV and 12kV metering cabinets.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a miniaturized high-voltage metering cabinet, the metering cabinet includes instrument box, the cabinet body, business turn over line sleeve pipe, voltage transformer, current transformer, high-voltage fuse, voltage sensor, CT copper busbar and PT copper busbar, the instrument box is located the cabinet body top, business turn over line sleeve pipe, voltage transformer, current transformer, high-voltage fuse, voltage sensor, CT copper busbar and PT copper busbar are all located the cabinet body, business turn over line sleeve pipe fixed mounting is on cabinet body lateral wall, voltage transformer hoists in cabinet body cavity top, voltage sensor is located cabinet body cavity middle-back portion, the high-voltage fuse is installed between voltage transformer and voltage sensor; the current transformer is horizontally arranged at the bottom of the inner cavity of the cabinet body, the CT copper bus is fixedly connected with the current transformer and the wire inlet and outlet sleeves on the left side and the right side, and the PT copper bus is fixedly connected with the current transformer and the voltage sensor.
Further, the cabinet body comprises left and right side board, panel, cabinet door, back shrouding and back package convex closure sheet metal component, the front end of controlling the side board sets up the panel, the lower part of panel sets up the cabinet door, the rear end of controlling the side board sets up the back shrouding, the middle part of back shrouding sets up back package convex closure sheet metal component, business turn over line sleeve pipe fixed mounting is on the lateral wall of controlling the side board, voltage sensor and back package convex closure sheet metal component fixed connection.
Preferably, the instrument box is provided with a transparent viewing window and a lead sealing post.
Still further, the business turn over line sleeve pipe is the elbow form, contains 6, each 3 about.
Preferably, the wire inlet and outlet sleeve is made of epoxy material and an elbow copper bar, and the epoxy material is coated outside the copper bar.
And 6 CT copper buses are formed by rod-shaped copper conducting rods.
And 3 PT copper buses are manufactured by rod-shaped copper conducting rods.
The number of the voltage transformers is 3, and the voltage transformers are arranged in left, middle and right sequence;
the number of the voltage sensors is 3, and the voltage sensors are arranged in a left-right middle-right sequence.
The number of the high-voltage fuses is 3, and the high-voltage fuses are arranged in a left-middle-right sequence.
The number of the current transformers is 3, and the current transformers are sequentially arranged in the back-middle-front mode.
The beneficial effects of the utility model are mainly shown in the following steps: reasonable layout, small volume, satisfaction of safety distance of the charged body, and high safety and reliability.
Drawings
Fig. 1 is an isometric view of a miniaturized high voltage metering cabinet.
Fig. 2 is a right side view of a miniaturized high voltage metering cabinet.
Fig. 3 is a front view of a miniaturized high voltage metering cabinet.
Fig. 4 is a left side view of a miniaturized high voltage metering cabinet.
Fig. 5 is a front cross-sectional view of a miniaturized high voltage metering cabinet.
Fig. 6 is a side cross-sectional view of a miniaturized high voltage metering cabinet.
The intelligent instrument box comprises an instrument box body 1, a transparent observation window 101, a lead sealing column 102, a voltage transformer 2, a high-voltage fuse 3, a voltage sensor 4, a current transformer 5, a CT copper bus 6, a PT copper bus 7, an in-out wire sleeve 8, a cabinet body 9, a left side plate 901, a right side plate 902, a panel 903, a cabinet door 904, a rear sealing plate 905 and a rear sealing convex hull sheet metal part 906.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
Referring to fig. 1 to 6, a miniaturized high-voltage metering cabinet comprises an instrument box 1, a cabinet body 9, an inlet and outlet wire sleeve 8, a voltage transformer 2, a current transformer 5, a high-voltage fuse 3, a voltage sensor 4, a CT copper bus 6 and a PT copper bus 7, wherein the instrument box 1 is positioned above the cabinet body 9, the inlet and outlet wire sleeve 8, the voltage transformer 2, the current transformer 5, the high-voltage fuse 3, the voltage sensor 4, the CT copper bus 6 and the PT copper bus 7 are all positioned in the cabinet body, the inlet and outlet wire sleeve 8 is fixedly arranged on the side wall of the cabinet body, the voltage transformer 2 is hoisted at the top of the inner cavity of the cabinet body, the voltage sensor 4 is positioned at the rear part of the inner cavity of the cabinet body, and the high-voltage fuse 3 is arranged between the voltage transformer 2 and the voltage sensor 4; the current transformer 5 is horizontally arranged at the bottom of the inner cavity of the cabinet body, the CT copper bus 6 fixedly connects the current transformer 5 with the wire inlet and outlet sleeves 8 on the left side and the right side, and the PT copper bus 7 fixedly connects the current transformer 5 with the voltage sensor 2.
Further, the cabinet body 9 is composed of left and right side plates 901, 902, a panel 903, a cabinet door 904, a rear sealing plate 905 and a rear sealing convex hull sheet metal part 906, the front ends of the left and right side plates 901, 902 are provided with the panel 903, the lower part of the panel 903 is provided with the cabinet door 904, the rear ends of the left and right side plates 901, 902 are provided with the rear sealing plate 905, the middle part of the rear sealing plate 905 is provided with the rear sealing convex hull sheet metal part 906, the wire inlet and outlet sleeve 8 is fixedly arranged on the side walls of the left and right side plates 901, 902, and the voltage sensor 2 is fixedly connected with the rear sealing convex hull sheet metal part 906.
In this embodiment, the instrument box 1 is provided with a transparent viewing window 101 for facilitating observation of the condition in the instrument box and a lead sealing post 102 for preventing fraudulent use of electricity.
The wire inlet and outlet sleeve 8 is also called a side expansion sleeve and is in an elbow shape, and comprises 6 wire inlet and outlet sleeves and 3 wire outlet sleeves. Preferably, the wire inlet and outlet sleeve 8 is made of epoxy material and an elbow copper bar, and the epoxy material is coated outside the copper bar.
The number of CT copper buses 6 is 6, and the CT copper buses are made of bar-shaped copper conducting rods. The number of PT copper buses 7 is 3, and the PT copper buses are made of rod-shaped copper conducting rods.
The number of the voltage transformers 4 is 3, and the voltage transformers are arranged in left, middle and right order and correspond to A phase, B phase and C phase of the power system. The number of the current transformers 5 is 3, and the current transformers are sequentially arranged in the back-middle-front mode and correspond to the phase A, the phase B and the phase C of the power system. The number of the voltage sensors 2 is 3, and the voltage sensors are sequentially arranged in the left, middle and right directions and correspond to the phase A, the phase B and the phase C of the power system. The number of the high-voltage fuses 3 is 3, and the high-voltage fuses are sequentially arranged in the left-middle-right direction and correspond to the phase A, the phase B and the phase C of the power system.
The working process of the embodiment is as follows: the metering cabinet is arranged between the high-voltage wire inlet cabinet and the high-voltage wire outlet cabinet (the high-voltage wire inlet cabinet and the high-voltage wire outlet cabinet are not drawn), and is connected with the wire inlet and outlet sleeve 8 through the side-expansion bus connector (not drawn), so that a current path and a voltage path of the metering cabinet are formed, and the electric meter in the meter box acquires parameters of the current transformer 5 and the voltage transformer 4 in real time, thereby realizing electricity metering for charging power users. The scheme of this embodiment is rationally distributed, small, electrified body safe distance satisfies the requirement, and fail safe nature is high.
The embodiments described in this specification are merely illustrative of the manner in which the inventive concepts may be implemented. The scope of the present utility model should not be construed as being limited to the specific forms set forth in the embodiments, but the scope of the present utility model and the equivalents thereof as would occur to one skilled in the art based on the inventive concept.
Claims (10)
1. The utility model provides a miniaturized high-voltage metering cabinet, its characterized in that, metering cabinet includes instrument box, the cabinet body, business turn over line sleeve pipe, voltage transformer, current transformer, high-voltage fuse, voltage sensor, CT copper busbar and PT copper busbar, the instrument box is located cabinet body top, business turn over line sleeve pipe, voltage transformer, current transformer, high-voltage fuse, voltage sensor, CT copper busbar and PT copper busbar all are located the cabinet body, business turn over line sleeve pipe fixed mounting is on cabinet body lateral wall, voltage transformer hoists in cabinet body cavity top, voltage sensor is located cabinet body cavity middle rear portion, high-voltage fuse installs between voltage transformer and voltage sensor; the current transformer is horizontally arranged at the bottom of the inner cavity of the cabinet body, the CT copper bus is fixedly connected with the current transformer and the wire inlet and outlet sleeves on the left side and the right side, and the PT copper bus is fixedly connected with the current transformer and the voltage sensor.
2. The miniaturized high-voltage metering cabinet according to claim 1, wherein the cabinet body is composed of a left side plate, a right side plate, a panel, a cabinet door, a rear sealing plate and a rear sealing convex hull sheet metal part, the front ends of the left side plate and the right side plate are provided with the panel, the lower part of the panel is provided with the cabinet door, the rear ends of the left side plate and the right side plate are provided with the rear sealing plate, the middle part of the rear sealing plate is provided with the rear sealing convex hull sheet metal part, the wire inlet and outlet sleeve is fixedly arranged on the side walls of the left side plate and the right side plate, and the voltage sensor is fixedly connected with the rear sealing convex hull sheet metal part.
3. A miniaturized high voltage metering cabinet according to claim 1 or 2, wherein the instrument cabinet is provided with a transparent viewing window and a lead sealing post.
4. A miniaturized high voltage metering cabinet according to claim 1 or 2, wherein the line inlet and outlet sleeve is in an elbow shape and comprises 6 lines, about 3 lines each.
5. A miniaturized high voltage metering cabinet according to claim 4, wherein the wire inlet and outlet sleeve is made of epoxy material and an elbow copper bar, and the epoxy material is coated outside the copper bar.
6. A miniaturized high voltage metering cabinet according to claim 1 or 2, wherein 6 CT copper bus bars are made of bar-shaped copper conductive bars.
7. A miniaturized high voltage metering cabinet according to claim 1 or 2, wherein 3 PT copper bus bars are made of bar-shaped copper conductive bars.
8. A miniaturized high voltage metering cabinet according to claim 1 or 2, wherein 3 voltage transformers are arranged in a left-middle-right order; the number of the voltage sensors is 3, and the voltage sensors are arranged in a left-right middle-right sequence.
9. A miniaturized high voltage metering cabinet according to claim 1 or 2, wherein 3 high voltage fuses are arranged in a right-left order.
10. A miniaturized high voltage metering cabinet according to claim 1 or 2, wherein the number of current transformers is 3, arranged in a back-to-middle-to-front order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223507809.2U CN218997431U (en) | 2022-12-28 | 2022-12-28 | Miniaturized high-voltage metering cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223507809.2U CN218997431U (en) | 2022-12-28 | 2022-12-28 | Miniaturized high-voltage metering cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218997431U true CN218997431U (en) | 2023-05-09 |
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ID=86195070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223507809.2U Active CN218997431U (en) | 2022-12-28 | 2022-12-28 | Miniaturized high-voltage metering cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218997431U (en) |
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2022
- 2022-12-28 CN CN202223507809.2U patent/CN218997431U/en active Active
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