CN220401263U - Environment-friendly gas insulation metering cabinet - Google Patents
Environment-friendly gas insulation metering cabinet Download PDFInfo
- Publication number
- CN220401263U CN220401263U CN202322064829.5U CN202322064829U CN220401263U CN 220401263 U CN220401263 U CN 220401263U CN 202322064829 U CN202322064829 U CN 202322064829U CN 220401263 U CN220401263 U CN 220401263U
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- Prior art keywords
- metering
- room
- transformer
- cabinet body
- cabinet
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- 238000009413 insulation Methods 0.000 title abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052802 copper Inorganic materials 0.000 claims abstract description 16
- 239000010949 copper Substances 0.000 claims abstract description 16
- 239000012212 insulator Substances 0.000 claims abstract description 8
- 238000005192 partition Methods 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000007689 inspection Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 15
- 238000005259 measurement Methods 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
Landscapes
- Transformers For Measuring Instruments (AREA)
Abstract
The utility model belongs to power transmission and distribution equipment, and provides an environment-friendly gas insulation metering cabinet which comprises a cabinet body, wherein the cabinet body is divided into an instrument room, a power PT room, a control room, a gas box and a cable room through a partition board, a metering kilowatt-hour meter and a three-phase three-wire junction box are arranged in the instrument room, a voltage transformer and an insulation support column are arranged in the power PT room, an operating mechanism is arranged in the control room, a load switch and a side-out umbrella skirt sleeve are arranged in the gas box, and a current metering transformer, a voltage metering transformer, a fuse and a high-voltage insulator are arranged in the cable room. According to the utility model, each core switch unit adopts a solid-sealed polar pole design, the partial discharge, dynamic heat, temperature rise and service life of the miniaturized vacuum arc-extinguishing chamber are reliably ensured, all functions required by metering can be realized on one cabinet body, all primary metering components are connected by copper bars, and the vacuum arc-extinguishing chamber is convenient to directly check during assembly, quality inspection and acceptance, and compared with the existing products of the same type, the vacuum arc-extinguishing chamber has the advantage that the occupied area is reduced by 50%.
Description
Technical Field
The utility model belongs to power transmission and distribution equipment, and particularly relates to an environment-friendly gas insulation metering cabinet.
Background
The metering cabinet is a cabinet body provided with a special meter or a metering device, generally referred to as an electric energy metering cabinet, is a combination of all electric equipment, electric parts and mechanical structures for metering electric energy, is of a closed structure, and is filled with SF6 gas as an insulating medium.
Compared with the traditional insulating metering cabinet, the environment-friendly gas insulating metering cabinet has the advantages that the insulating medium filled in the environment-friendly gas insulating metering cabinet is replaced by inert gases such as nitrogen and the like through SF6 gas to play an insulating role, and the environment-friendly gas insulating metering cabinet does not contain any harmful gas and greenhouse gas and is more friendly in environmental adaptability.
The existing metering cabinet needs to be provided with a plurality of cabinet bodies to realize the functions required by metering, and is large in occupied area and not compact in structural design.
Disclosure of Invention
The utility model provides an environment-friendly gas insulation metering cabinet, and aims to solve the technical problems.
The utility model discloses an environment-friendly gas-insulated metering cabinet, which comprises a cabinet body, wherein the cabinet body is divided into an instrument room, a power PT room, a control room, a gas box and a cable room through a partition board, the instrument room is positioned at the front end of the top of the cabinet body, the power PT room is positioned at the rear end of the top of the cabinet body, the control room is positioned at the front end of the middle of the cabinet body, the gas box is positioned at one side of the rear end of the middle of the cabinet body, and the cable room extends from the other side of the rear end of the middle of the cabinet body to the bottom of the cabinet body;
a sleeve with an umbrella skirt is arranged in the air box, and a current metering transformer, a voltage metering transformer, a fuse and a high-voltage insulator are arranged in the cable chamber;
the lower end of the side-out umbrella skirt sleeve extends into the cable chamber, the current metering transformer is fixedly connected to the inner side wall of the cable chamber, the incoming line side of the current metering transformer is connected with the outer side of the side-out umbrella skirt sleeve through a copper bar, the outgoing line side of the current metering transformer is connected with the outgoing line end of the metering cabinet through a copper bar through a bus bar, the middle part of the copper bar connected with the outgoing line side of the current metering transformer is fixed to the inner side wall of the cable chamber through a high-voltage insulator, the voltage metering transformer is fixed to the bottom of the cable chamber, and the voltage metering transformer is connected to the copper bar on the outgoing line side of the current metering transformer in parallel through a fuse.
Further, the voltage measurement transformer and the bottom edge of the cable chamber form an included angle of 45 degrees.
Still further, the current metering transformer is of the type LZZBJ9-10.
Still further, the voltage measurement transformer is JDZ-10.
Still further, the type of the fuse is XRNP-12.
Further, a cable room door is arranged on the front side of the cable room.
Advantageous effects
The environment-friendly gas-insulated metering cabinet provided by the utility model is provided with an instrument room, a power PT room, a control room, an air box and a cable room, core switch units in each space are all designed by adopting a solid-sealed polar pole, and the partial discharge, dynamic heat, temperature rise and service life of the miniaturized vacuum arc extinguishing chamber are reliably ensured. According to the utility model, all functions required by metering can be realized on one cabinet body, and the current metering transformer and the voltage metering transformer do not need to be specially customized. The copper bars are used for connection among all primary metering components, so that the components are convenient to directly check during assembly, quality inspection and acceptance, and compared with the existing products of the same type, the utility model can reduce the occupied area by 50%.
Drawings
FIG. 1 is a schematic diagram of an environment-friendly gas-insulated metering cabinet according to an embodiment of the present utility model;
FIG. 2 is a second schematic diagram of an environment-friendly gas-insulated metering cabinet according to an embodiment of the utility model;
FIG. 3 is a schematic view of the internal structure of the instrument room, the power PT room, the control room and the air box;
fig. 4 is a schematic view of the internal structure of the cable chamber.
Reference numerals in the drawings denote: 1-instrument room, 101-metering kilowatt-hour meter, 102-three-phase three-wire junction box, 2-power PT room, 201-voltage transformer, 202-insulation pillar, 3-control room, 301-operating mechanism, 4-gas box, 401-load switch, 402-side out umbrella skirt sleeve, 5-cable room, 501-current metering transformer, 502-voltage metering transformer, 503-fuse, 504-high voltage insulator, 6-inlet terminal, 7-outlet terminal.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1 to 4, the embodiment of the utility model provides an environment-friendly gas-insulated metering cabinet, which adopts a cabinet body with smaller occupied area to realize all functions required by metering, wherein the interior of the cabinet body is divided into an instrument room 1, a power supply PT room 2, a control room 3, a gas box 4 and a cable room 5 by partition boards, the instrument room 1 is positioned at the front end of the top of the cabinet body, the power supply PT room 2 is positioned at the rear end of the top of the cabinet body, the control room 3 is positioned at the front end of the middle of the cabinet body, the gas box 4 is positioned at one side of the rear end of the middle of the cabinet body, and the cable room 5 extends from the other side of the rear end of the middle of the cabinet body to the bottom of the cabinet body.
The meter room 1 is internally provided with a metering watt-hour meter 101 and a three-phase three-wire junction box 102, the power PT room 2 is internally provided with a voltage transformer 201 and an insulating strut 202, the control room 3 is internally provided with an operating mechanism 301, the air box 4 is internally provided with a load switch 401 and a side-out umbrella skirt sleeve 402, and the cable room 5 is internally provided with a current metering transformer 501, a voltage metering transformer 502, a fuse 503 and a high-voltage insulator 504.
The metering watt-hour meter 101 in the instrument room 1 is connected with a buzzer, a signal lamp and a control button, and is used for controlling the metering watt-hour meter and alarming when the parameter is abnormal, and the metering watt-hour meter 101 is connected with the voltage transformer 201 in the power PT room 2 through a three-phase three-wire junction box 102 by a shielding cable.
The voltage transformer 201 in the power PT room 2 is connected to the outside of the insulating support 202 through 630A touchable cable front connector, flexible cable and PT elbow type cable connector, and the lower end of the insulating support 202 extends into the air box 4. In the embodiment of the utility model, the voltage transformer 201 is of the model JDZ12A-10R10/0.22.
The operating mechanism 301 in the control room 3 is hard connected with the load switch 401 in the air box 4 through a transmission shaft, and controls the opening or closing of the load switch 401. In the embodiment of the present utility model, the operating mechanism 301 is a breaker core module assembly of model VK 1A-V.
The upper end of the load switch 401 in the air box 4 is connected with the first bus connector, namely the inlet wire end 6 of the metering cabinet and the inner side of the insulating support 202 through soft connection, the lower end of the load switch 402 is connected with the side outlet umbrella skirt sleeve 402, and the lower end of the side outlet umbrella skirt sleeve 402 extends into the cable chamber 5. In the embodiment of the present utility model, the load switch 401 is of the type VX-2-12.
The current measurement transformer 501 in the cable chamber 5 is fixedly connected to the inner side wall of the cable chamber 5, the incoming line side of the current measurement transformer 501 is led out of the outer side of the umbrella skirt sleeve 402 through the copper bar connection side, the outgoing line side of the current measurement transformer 501 is connected with the second bus connector, namely the outgoing line end 7 of the measurement cabinet, through the copper bar, through the bus bar, the middle part of the copper bar connected with the outgoing line side of the current measurement transformer 501 is fixed to the inner side wall of the cable chamber 5 through the high-voltage insulator 504, the voltage measurement transformer 502 is fixed to the bottom of the cable chamber 5 and forms a 45-degree included angle with the bottom edge of the cable chamber 5, and the voltage measurement transformer 502 is connected to the copper bar on the outgoing line side of the current measurement transformer 501 in parallel through the fuse 503. In the embodiment of the utility model, the type of the current metering transformer 501 is LZZBJ9-10, the type of the voltage metering transformer 502 is JDZ-10, and the type of the fuse 503 is XRNP-12.
In addition, the observation window has been seted up in the front of instrument room 1, conveniently observes metering kilowatt-hour meter 101, and the access door has been seted up to the top surface of power PT room, and the convenience is overhauld voltage transformer 201, and the cabinet body surface outside control room 3 sets up operating panel for control operating mechanism 301, adopt detachable mechanism to connect between the curb plate and the cabinet body of the side of gas tank 4, conveniently overhaul load switch 401, and the cable room door has been seted up to the front side of cable room 5, conveniently looks over inside the cable room.
In the embodiment of the utility model, each core switch unit adopts a solid-sealed polar pole design, and the partial discharge, dynamic heat, temperature rise and service life of the miniaturized vacuum arc-extinguishing chamber are reliably ensured. According to the embodiment of the utility model, all functions required by metering can be realized on one cabinet body, and the current metering transformer and the voltage metering transformer do not need to be specially customized. The copper bars are used for connection among all primary metering components and parts, and the copper bars are convenient to directly check during assembly, quality inspection and acceptance, compared with the existing products of the same type, the metering function can be realized only by three cabinet bodies, and the primary cables are required to be connected after the on-site cabinet splicing is completed, so that the current metering transformer and the voltage metering transformer are specially customized, and compared with the existing products of the same type, the current metering transformer and the voltage metering transformer can occupy 50% of floor area.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (6)
1. The environment-friendly gas-insulated metering cabinet is characterized by comprising a cabinet body, wherein the cabinet body is divided into an instrument room, a power PT room, a control room, a gas box and a cable room through a partition board, the instrument room is positioned at the front end of the top of the cabinet body, the power PT room is positioned at the rear end of the top of the cabinet body, the control room is positioned at the front end of the middle of the cabinet body, the gas box is positioned at one side of the rear end of the middle of the cabinet body, and the cable room extends from the other side of the rear end of the middle of the cabinet body to the bottom of the cabinet body;
a sleeve with an umbrella skirt is arranged in the air box, and a current metering transformer, a voltage metering transformer, a fuse and a high-voltage insulator are arranged in the cable chamber;
the lower end of the side-out umbrella skirt sleeve extends into the cable chamber, the current metering transformer is fixedly connected to the inner side wall of the cable chamber, the incoming line side of the current metering transformer is connected with the outer side of the side-out umbrella skirt sleeve through a copper bar, the outgoing line side of the current metering transformer is connected with the outgoing line end of the metering cabinet through a copper bar through a bus bar, the middle part of the copper bar connected with the outgoing line side of the current metering transformer is fixed to the inner side wall of the cable chamber through a high-voltage insulator, the voltage metering transformer is fixed to the bottom of the cable chamber, and the voltage metering transformer is connected to the copper bar on the outgoing line side of the current metering transformer in parallel through a fuse.
2. The environment-friendly gas-insulated metering cabinet of claim 1, wherein the voltage metering transformer forms an included angle of 45 degrees with the bottom edge of the cable chamber.
3. The environment-friendly gas-insulated metering cabinet according to claim 1, wherein the current metering transformer is of the type LZZBJ9-10.
4. The environment-friendly gas-insulated metering cabinet according to claim 1, wherein the voltage metering transformer is of the type JDZ-10.
5. The environmentally friendly gas insulated metering cabinet of claim 1 wherein said fuse is of the type XRNP-12.
6. The environmentally friendly gas insulated metering cabinet of claim 1 wherein the front side of the cable compartment is provided with a cable compartment door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322064829.5U CN220401263U (en) | 2023-08-02 | 2023-08-02 | Environment-friendly gas insulation metering cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322064829.5U CN220401263U (en) | 2023-08-02 | 2023-08-02 | Environment-friendly gas insulation metering cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220401263U true CN220401263U (en) | 2024-01-26 |
Family
ID=89606023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322064829.5U Active CN220401263U (en) | 2023-08-02 | 2023-08-02 | Environment-friendly gas insulation metering cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220401263U (en) |
-
2023
- 2023-08-02 CN CN202322064829.5U patent/CN220401263U/en active Active
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