CN109861124B - Draw-out type low-voltage metering device and low-voltage metering cabinet - Google Patents
Draw-out type low-voltage metering device and low-voltage metering cabinet Download PDFInfo
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- CN109861124B CN109861124B CN201910128570.1A CN201910128570A CN109861124B CN 109861124 B CN109861124 B CN 109861124B CN 201910128570 A CN201910128570 A CN 201910128570A CN 109861124 B CN109861124 B CN 109861124B
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Abstract
The invention discloses a draw-out type low-voltage metering device and a low-voltage metering cabinet, comprising a draw-out frame, wherein the draw-out frame comprises a base and a mounting plate, the base is provided with rollers, and the mounting plate is vertically arranged on the base; the front surface of the mounting plate is provided with a metering junction box, a metering watt-hour meter and a secondary element; the upper end and the lower end of the reverse side of the mounting plate are respectively provided with insulators through the mounting bracket, the insulators at the upper end and the lower end are connected through a connecting row, and the metering transformer is fixed on the connecting row through bolts. The invention has the advantages of reasonable design, high universality, convenient maintenance and high safety and reliability.
Description
Technical Field
The invention relates to a draw-out type low-voltage metering device and a low-voltage metering cabinet, and belongs to the technical field of low-voltage distribution equipment.
Background
At present, a power supply office electric energy metering device in low-voltage distribution equipment basically adopts fixed installation in low-voltage complete switch cabinet equipment, an electric energy metering space is reserved in the low-voltage complete switch cabinet during manufacturing, bus bars in the cabinet are subjected to sectional treatment, and an electric energy metering transformer and an electric energy metering device are convenient to install on site. Because metering device all adopts fixed installation, when the maintainer overhauls, need overhaul or change in the cubical switchboard, brought great inconvenience for the maintainer, the on-the-spot running condition of electricity distribution room is complicated simultaneously, if the condition of overhauling is violating regulations in electrified appears in misoperation, will bring great potential safety hazard, serious harm the personal safety of maintainer to require the maintainer to operate according to operation rule strictly.
Aiming at the defects of the prior art, a researcher needs to develop a low-voltage metering device and a low-voltage metering cabinet which are reasonable in design, high in universality, convenient to overhaul, safe and reliable.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a drawing type low-voltage metering device and a low-voltage metering cabinet which are reasonable in design, simple in structure, high in universality and high in safety performance, and can effectively prevent the condition that an maintainer has misoperation.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
the draw-out type low-pressure metering device comprises a draw-out frame, wherein the draw-out frame comprises a base and a mounting plate, the base is provided with rollers, and the mounting plate is vertically arranged on the base; the front surface of the mounting plate is provided with a metering junction box, a metering watt-hour meter and a secondary element; the upper end and the lower end of the reverse side of the mounting plate are respectively provided with insulators through a mounting bracket, the insulators at the upper end and the lower end are connected through a first connecting row, a second connecting row and a third connecting row, the connecting rows are connected into a whole through bolts, one end of the first connecting row is connected with the insulator at the upper end, the other end of the first connecting row is connected with the second connecting row, and a moving contact is arranged on the first connecting row; one end of the third connecting row is connected with an insulator at the lower end, the other end of the third connecting row is connected with the second connecting row, and a moving contact is arranged on the third connecting row; the measuring transformer is fixed on the second connecting row through bolts.
As a preferable scheme, two sides of the drawing frame are provided with side plates.
The low-voltage metering cabinet comprises a cabinet body, wherein a draw-out type low-voltage metering device, a guide rail, a metering chamber door plate, a partition plate, a busbar and a fixed contact are arranged in the cabinet body, and an observation window and a lead sealing lock are arranged on the metering chamber door plate; the partition plate, the metering chamber door plate and the cabinet body form an independent metering compartment, and lead sealing is carried out through a lead sealing lock on the metering door plate.
As a preferable scheme, the busbar is arranged on the cabinet body, and one end of the busbar is connected with the fixed contact.
Preferably, the rollers and the guide rail cooperate.
Compared with the prior art, the invention adopts the extraction type structure, and the metering device is extracted during overhauling and maintenance, so that the metering device is separated from the electrified body, overhauling and maintenance work is completed in a safe area, and the convenience and safety of overhauling and maintenance are effectively improved.
Drawings
Fig. 1 is a schematic structural view of a draw-out type low pressure metering device.
Fig. 2 is a schematic side view of a low-voltage metering cabinet.
Fig. 3 is a schematic front view of the low-voltage metering cabinet.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings and examples of embodiments.
As shown in fig. 1, 2 and 3, a draw-out type low-pressure metering device comprises a draw-out frame 10, wherein the draw-out frame 10 comprises a base 101 and a mounting plate 102, and rollers 104 are arranged at the bottom of the base 101 to facilitate movement of the draw-out frame 10. The mounting plate 102 is vertically disposed on the base 101, and other application devices are mounted on the mounting plate 102.
The mounting board 102 is generally designed in a flat plate shape, so that different devices can be mounted on the front and back sides of the mounting board 102, and it should be noted that the front and back sides are merely opposite concepts. In this embodiment, the front face of the mounting plate 102 is provided with a metering junction box 12, a metering electricity meter 13 and a secondary element 11; the upper and lower both ends of reverse side of mounting panel 102 are provided with insulator 15 respectively through installing support 103, and insulator 15 at upper and lower both ends is connected through first connection row 160, second connection row 161 and third connection row 162, connects and connects the row to become a whole through bolted connection between the row, and measurement mutual-inductor 19 passes through the bolt fastening on second connection row 161, and the installation and the dismantlement of measurement mutual-inductor 19 of being convenient for. One end of the first connection row 160 is connected with an insulator at the upper end, the other end of the first connection row 160 is connected with the second connection row 161, and the first connection row 160 is provided with a moving contact 18. Correspondingly, one end of the third connection row 162 is connected with the insulator at the lower end, the other end of the third connection row 162 is connected with the second connection row 161, and the third connection row 162 is provided with the moving contact 18. For isolation from the cabinet, side plates 17 are provided on both sides of the drawer frame.
The low-voltage metering cabinet comprises a cabinet body 20, wherein a busbar 22, a guide rail 21 and a fixed contact 23 are arranged in the cabinet body 20, one end of the busbar 22 is connected with the fixed contact 23, and the other end of the busbar is fixed on the cabinet body 20.
The cabinet 20 is provided with a metering chamber door plate 25 at the front and back, a partition plate 24 is arranged in the cabinet, and an observation window 26 and a lead sealing lock 27 are arranged on the metering chamber door plate 25. The partition 24, the metering chamber door 25 and the cabinet 20 form an independent metering compartment, and are sealed by lead by a lead seal lock 27 on the metering door 25 to prevent electricity theft.
During operation, the draw-out type low-voltage metering device is pushed into the cabinet body 20 through the cooperation of the idler wheels 101 and the guide rail 21, the movable contact 18 is connected with the fixed contact 23, electric connection is achieved, the front metering chamber door plate 25 and the rear metering chamber door plate 25 are closed and sealed in a lead mode, at the moment, metering of the transformer and the kilowatt-hour meter is started, and internal operation conditions can be observed through the observation window 26.
During maintenance, the lead lock 27 and the front metering chamber door plate 25 are opened, the extraction type low-voltage metering device is extracted from the cabinet body 20, separated from the electrified body and moved to a safety area for relevant maintenance work, and after the maintenance is completed, the lead lock can be put back into the cabinet body 20 again and pushed in for metering work.
While the invention has been described in terms of preferred embodiments, it will be understood by those skilled in the art that the foregoing and various other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention. The scope of the invention should, therefore, be determined with reference to the appended claims.
Claims (5)
1. The draw-out type low-pressure metering device is characterized by comprising a draw-out frame, wherein the draw-out frame comprises a base and a mounting plate, the base is provided with rollers, and the mounting plate is vertically arranged on the base; the front surface of the mounting plate is provided with a metering junction box, a metering watt-hour meter and a secondary element; the upper end and the lower end of the reverse side of the mounting plate are respectively provided with insulators through a mounting bracket, the insulators at the upper end and the lower end are connected through a first connecting row, a second connecting row and a third connecting row, the connecting rows are connected into a whole through bolts, one end of the first connecting row is connected with the insulator at the upper end, the other end of the first connecting row is connected with the second connecting row, and a moving contact is arranged on the first connecting row; one end of the third connecting row is connected with an insulator at the lower end, the other end of the third connecting row is connected with the second connecting row, and a moving contact is arranged on the third connecting row; the measuring transformer is fixed on the second connecting row through bolts.
2. The draw-out low pressure metering device of claim 1, wherein side plates are provided on both sides of the draw-out frame.
3. A low-voltage metering cabinet with the drawing-out type low-voltage metering device as claimed in claim 1 or 2, which is characterized by comprising a cabinet body, wherein the cabinet body is internally provided with the drawing-out type low-voltage metering device, a guide rail, a metering chamber door plate, a baffle plate, a busbar and a fixed contact, and the metering chamber door plate is provided with an observation window and a lead lock; the partition plate, the metering chamber door plate and the cabinet body form an independent metering compartment, and lead sealing is carried out through a lead sealing lock on the metering door plate.
4. A low voltage metering cabinet according to claim 3 wherein the busbar is disposed on the cabinet body and has one end connected to the stationary contact.
5. A low voltage metering cabinet according to claim 3 wherein the rollers cooperate with the guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910128570.1A CN109861124B (en) | 2019-02-21 | 2019-02-21 | Draw-out type low-voltage metering device and low-voltage metering cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910128570.1A CN109861124B (en) | 2019-02-21 | 2019-02-21 | Draw-out type low-voltage metering device and low-voltage metering cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109861124A CN109861124A (en) | 2019-06-07 |
| CN109861124B true CN109861124B (en) | 2023-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910128570.1A Active CN109861124B (en) | 2019-02-21 | 2019-02-21 | Draw-out type low-voltage metering device and low-voltage metering cabinet |
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| CN209472274U (en) * | 2019-02-21 | 2019-10-08 | 南京华脉科技股份有限公司 | A kind of pull-out type low-voltage metering mechanism and low-voltage metering cabinet |
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| CN109861124A (en) | 2019-06-07 |
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