CN112736663A - PT cabinet automatic switching control equipment for multichannel inlet wire - Google Patents
PT cabinet automatic switching control equipment for multichannel inlet wire Download PDFInfo
- Publication number
- CN112736663A CN112736663A CN202011588863.7A CN202011588863A CN112736663A CN 112736663 A CN112736663 A CN 112736663A CN 202011588863 A CN202011588863 A CN 202011588863A CN 112736663 A CN112736663 A CN 112736663A
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- Prior art keywords
- cabinet
- cavity
- wiring
- cabinet body
- automatic switching
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- 238000009434 installation Methods 0.000 claims abstract description 24
- 230000017525 heat dissipation Effects 0.000 claims description 18
- 238000005192 partition Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/007—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The invention relates to the technical field of power equipment, and provides an automatic switching device of a PT cabinet for multi-path incoming wires, which aims to solve the problems that the existing multi-path incoming wire PT cabinet cannot automatically switch incoming wires according to actual conditions, circuit disconnection is not timely, power supply reliability is low, and safety cannot be guaranteed; the side wall of the cabinet body corresponding to the installation cavity is provided with a plurality of wire inlets for multiple wires to pass through. The invention is particularly suitable for safe use of the multi-path lead-in PT cabinet, and has higher social use value and application prospect.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to a PT cabinet automatic switching device for a multi-path incoming line.
Background
The PT cabinet is a voltage transformer cabinet, is generally directly arranged on a bus to detect the voltage of the bus and realize the protection function, and is mainly internally provided with a voltage transformer PT, an isolation knife, a fuse, a lightning arrester and the like. The PT cabinet adopts a combined structure, and PT with different quantities and types can be configured according to specific engineering. The existing multi-path incoming line PT cabinet cannot automatically switch incoming lines according to actual conditions, circuit disconnection is not timely, reliability of power supply is low, and safety cannot be guaranteed.
The patent with publication number CN211351818U discloses a double-incoming-line double-PT cabinet alternating-current power supply interlocking device and a power supply switching system, which comprises a first voltage mutual inductance module, a second voltage detection module, a first switch, a second switch and an interlocking module; the first voltage detection module, the first switch and the interlocking module are a power supply loop of the first alternating current operating power supply; the second voltage detection module, the second switch and the interlocking module are a power supply loop of a second alternating current operation power supply, the device can realize automatic switching of an alternating current power supply, but the device cannot be adapted to safe use of a multi-path incoming line PT, and therefore the PT cabinet automatic switching device for the multi-path incoming line is provided.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the automatic switching device of the PT cabinet for the multi-path incoming line, which overcomes the defects of the prior art, has reasonable design and compact structure and aims to solve the problems that the existing multi-path incoming line PT cabinet cannot automatically switch incoming lines according to actual conditions, a circuit is not timely disconnected, the reliability of power supply is low and the safety cannot be ensured.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
a PT cabinet automatic switching device for multi-path incoming lines comprises a cabinet body and a base, wherein the cabinet body is hollow inside, the base is installed at the lower end of the cabinet body, a multi-hole partition plate is horizontally installed at the lower portion of an inner cavity of the cabinet body, the inner cavity of the cabinet body is sequentially divided into an installation cavity and a heat dissipation cavity by the multi-hole partition plate from top to bottom, and an upper cabinet door and a lower cabinet door are respectively arranged on the front wall of the cabinet body corresponding to the installation;
the cabinet body corresponds on the lateral wall of installation cavity position and is exactly to have a plurality of inlet openings that are used for the multichannel inlet wire to pass, installs the wiring board on the inner wall of installation cavity, and is equipped with the first connector lug that corresponds the multichannel inlet wire wiring respectively on the wiring board, and installs multiunit generating line row behind the inner chamber of installation cavity on, and the inner chamber middle part of installation cavity is equipped with the multiunit and corresponds the indicator lamp plate that corresponds the multichannel inlet wire respectively, still install the switching unit who is used for multichannel inlet wire automatic switch-over in the inner chamber of installation cavity.
Preferably, the switching unit comprises a mounting box body fixedly mounted on the inner wall of the mounting cavity, a lower wire coil and an upper wire connecting disc are respectively and fixedly mounted on the top wall and the bottom wall of the inner cavity of the mounting box body, connecting contacts and second wire connecting heads distributed in an annular array are respectively inserted on the lower wire coil and the upper wire connecting disc, a rotating shaft is rotatably arranged in the middle between the lower wiring disc and the upper wiring disc, one shaft end of the rotating shaft extends to the outer cavity of the mounting box body and is mounted on the output end of the driving motor, and the driving motor is fixedly arranged on the outer wall of the mounting box body, the side wall of the rotating shaft is provided with a vertically arranged connecting feeler lever through a bracket, and the two ends of the connecting contact rod are contacted with the connecting contacts and the second wiring heads when rotating, the outer wall of the mounting box body is provided with wiring contacts the number of which is the same as that of the second wiring heads, and the second wiring heads are respectively connected with the wiring contacts in a matching way through wires.
Preferably, a plurality of air outlets have been seted up on the roof of the cabinet body, and be equipped with the air inlet grid on the cabinet body corresponds the lateral wall of heat dissipation chamber position, be equipped with the cooling fan that the output set up in the inner chamber in heat dissipation chamber.
Preferably, the air inlet grids are provided with two groups and symmetrically embedded on the opposite side walls of the cabinet body respectively.
Preferably, the grids on the air inlet grid are arranged downwards in an inclined manner from inside to outside.
Preferably, a ceiling with a front opening is mounted on the top wall of the cabinet body, and the ceiling is arranged in a downward inclined manner from front to back.
Preferably, a temperature sensor and a control unit for controlling the temperature sensor and the switching unit are arranged in the inner cavity of the mounting cavity, and the control unit is a PLC (programmable logic controller).
Preferably, the position that goes up the cabinet door and correspond multiunit generating line row and indicator lamp plate inlays and is equipped with transparent observation window.
Preferably, a plurality of bus bar heads for overvoltage protection are arranged on the bus bar.
(III) advantageous effects
The embodiment of the invention provides an automatic PT cabinet switching device for multi-path incoming lines, which has the following beneficial effects:
1. in the invention, when the two ends of the connecting contact rod are connected with the wiring contact and the connecting contact of the corresponding access lead, the corresponding wire inlet circuits are communicated; when the circuit switches, driving motor starts, drives the axis of rotation and rotates, and then connects the feeler lever through the support drive and rotate, connects the both ends of feeler lever and another wiring contact and the connection contact of organizing the inlet wire and be connected, and the circuit intercommunication of this inlet wire cooperates programmable control circuit's use, can carry out the automatic switch-over of inlet wire according to actual conditions, and the circuit disconnection is timely, has improved the reliability of power supply, guarantees voltage transformer PT's safe handling.
2. According to the invention, through the arrangement of the heat dissipation fan, the air inlet grids and the air outlet, the inner cavity of the cabinet body is sequentially divided into the mounting cavity and the heat dissipation cavity from top to bottom by the porous division plate, effective function division is realized, safe use is ensured, external rainwater is prevented from entering the inner cavity of the cabinet body, the heat dissipation fan is matched with the arrangement of the temperature sensor, when the temperature in the cabinet body is too high, the temperature of the measurement PT and the measurement PT in the cabinet body is effectively reduced, and the safe use of the voltage transformer PT is ensured.
Drawings
The above features, technical features, advantages and implementations of an automatic multi-line PT cabinet switching device will be further described in the following detailed description of preferred embodiments with reference to the accompanying drawings.
FIG. 1 is a schematic view of the external structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic diagram of a switching unit according to the present invention;
FIG. 4 is an exploded view of the internal structure of the switching unit of the present invention;
fig. 5 is a block diagram of the present invention.
In the figure: the cabinet body 1, the mounting cavity 101, the heat dissipation cavity 102, the base 2, the ceiling 3, the air outlet 4, the upper cabinet door 5, the transparent observation window 6, the lower cabinet door 7, the wire inlet 8, the door handle 9, the wiring board 10, the first connector lug 11, the switching unit 12, the mounting box 121, the connection contact 122, the wiring contact 123, the lower connector lug 124, the upper connector lug 125, the second connector lug 126, the connection contact rod 127, the support 128, the rotating shaft 129, the driving motor 1210, the bus bar 13, the bus bar head 131, the indicator lamp panel 14, the porous partition plate 15, the heat dissipation fan 16, the air inlet grid 17 and the control unit 18.
Detailed Description
The invention will be further illustrated with reference to the following figures 1 to 5 and examples:
example 1
A PT cabinet automatic switching device for multi-path incoming lines comprises a cabinet body 1 with a hollow interior and a base 2 installed at the lower end of the cabinet body 1, wherein a porous partition plate 15 is horizontally installed at the lower portion of an inner cavity of the cabinet body 1, the inner cavity of the cabinet body 1 is sequentially divided into an installation cavity 101 and a heat dissipation cavity 102 by the porous partition plate 15 from top to bottom, and an upper cabinet door 5 and a lower cabinet door 7 are respectively arranged on the front wall of the cabinet body 1 corresponding to the installation cavity 101 and the heat dissipation cavity 102;
in this embodiment, as shown in fig. 1-2, a plurality of incoming lines 8 for multiple incoming lines to pass through are formed on the side wall of the cabinet body 1 corresponding to the position of the installation cavity 101, a wiring board 10 is installed on the inner wall of the installation cavity 101, first wiring heads 11 corresponding to the multiple incoming line wiring are respectively arranged on the wiring board 10, each first wiring head 11 is connected with one corresponding incoming line, so as to ensure the circuit connection and switching of the multiple incoming lines, a plurality of bus bars 13 are installed on the rear wall of the inner cavity of the installation cavity 101, a plurality of indicator lamp panels 14 corresponding to the multiple incoming lines are correspondingly arranged in the middle of the inner cavity of the installation cavity 101, a switching unit 12 for automatically switching the multiple incoming lines is further installed in the inner cavity of the installation cavity 101, the indicator lamp panels 14 are used for displaying the communication condition of the circuit in real time, and simultaneously, a portion needing maintenance can be indicated during maintenance, and, labour saving and time saving's installation voltage transformer PT.
In this embodiment, as shown in fig. 2 to 4, the switching unit 12 includes a mounting box 121 fixedly mounted on the inner wall of the mounting cavity 101, a lower wire coil 124 and an upper wire connecting plate 125 are fixedly mounted on the top wall and the bottom wall of the inner cavity of the mounting box 121, a connecting contact 122 and a second wire connecting head 126 distributed in an annular array are respectively inserted on the lower wire coil 124 and the upper wire connecting plate 125, a rotating shaft 129 is rotatably mounted in the middle between the lower wire coil 124 and the upper wire connecting plate 125, one shaft end of the rotating shaft 129 extends to the outer cavity of the mounting box 121 and is mounted on the output end of a driving motor 1210, the driving motor 1210 is fixedly mounted on the outer wall of the mounting box 121, a vertically arranged connecting contact rod 127 is mounted on the side wall of the rotating shaft 129 through a bracket 128, and the two ends of the connecting contact rod 127 are in contact with the connecting contact 122 and the second wire connecting head, the outer wall of the mounting box body 121 is provided with wiring contacts 123 with the same number as the second wiring terminals 126, the second wiring terminals 126 are respectively connected with the wiring contacts 123 in a matching manner through wires, and when two ends of the connecting contact rod 127 are connected with the wiring contacts 123 and the connecting contacts 122 which are correspondingly connected with wires, corresponding wire inlet circuits are communicated; when the circuit switches, driving motor 1210 starts, drives axis of rotation 129 and rotates, and then connects feeler lever 127 through support 128 drive and rotate, connects feeler lever 127's both ends and the wiring contact 123 and the connection contact 122 of another group inlet wire and is connected, and the circuit intercommunication of this inlet wire cooperates programmable control circuit's use, can carry out the automatic switch-over of inlet wire according to actual conditions, guarantees to use.
In this embodiment, as shown in fig. 2, a temperature sensor and a control unit 18 for controlling the temperature sensor and the switching unit 12 are disposed in an inner cavity of the installation cavity 101, the control unit 18 is a PLC controller, and the control unit 18 is configured to control automatic switching of a circuit after multiple incoming lines in a PT cabinet, so as to ensure that a voltage loop of a measuring meter is provided.
In this embodiment, as shown in fig. 1, a transparent observation window 6 is embedded in a position of the upper cabinet door 5 corresponding to the plurality of bus bars 13 and the indicator lamp panel 14, so that the operation condition of a PT (voltage transformer) in the cabinet body 1 can be observed at any time.
In this embodiment, as shown in fig. 2, a plurality of bus bar heads 131 for overvoltage protection are disposed on the bus bar 13, so as to meet the requirement of relay protection.
Example 2
The difference between the present embodiment and embodiment 1 is that, as shown in fig. 1-2, a plurality of air outlets 4 are opened on the top wall of the cabinet 1, and the side wall of the cabinet body 1 corresponding to the position of the heat dissipation cavity 102 is provided with an air inlet grid 17, the inner cavity of the heat dissipation cavity 102 is provided with a heat dissipation fan 16 with an upward output end, the two groups of air inlet grids 17 are symmetrically embedded on the opposite side walls of the cabinet body 1 respectively to ensure the cooling of the inlet air, the grids on the air inlet grid 17 are arranged downwards in an inclined manner from inside to outside to prevent external rainwater from entering the inner cavity of the cabinet body 1, a ceiling 3 with a front opening is arranged on the top wall of the cabinet body 1, the ceiling 3 is arranged downwards in an inclined way from front to back to prevent external rainwater from entering the inner cavity of the cabinet body 1, the heat radiation fan 16 is matched with the temperature sensor, when the temperature in the cabinet body 1 is too high, the temperature of measuring PT and measuring PT in the cabinet body 1 is effectively reduced.
Other undescribed structures refer to example 1.
The embodiments of the present invention are disclosed as the preferred embodiments, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention and make various extensions and changes without departing from the spirit of the present invention.
Claims (9)
1. A PT cabinet automatic switching device for multi-path incoming lines comprises a cabinet body with a hollow interior and a base installed at the lower end of the cabinet body, and is characterized in that a porous partition plate is horizontally installed at the lower portion of an inner cavity of the cabinet body, the inner cavity of the cabinet body is sequentially divided into an installation cavity and a heat dissipation cavity from top to bottom by the porous partition plate, and an upper cabinet door and a lower cabinet door are respectively arranged on the front wall of the cabinet body corresponding to the installation cavity and the heat dissipation cavity;
the cabinet body corresponds on the lateral wall of installation cavity position and is exactly to have a plurality of inlet openings that are used for the multichannel inlet wire to pass, installs the wiring board on the inner wall of installation cavity, and is equipped with the first connector lug that corresponds the multichannel inlet wire wiring respectively on the wiring board, and installs multiunit generating line row behind the inner chamber of installation cavity on, and the inner chamber middle part of installation cavity is equipped with the multiunit and corresponds the indicator lamp plate that corresponds the multichannel inlet wire respectively, still install the switching unit who is used for multichannel inlet wire automatic switch-over in the inner chamber of installation cavity.
2. The automatic switching device of the PT cabinet for the multiple incoming lines of claim 1, wherein: the switching unit comprises a mounting box body fixedly mounted on the inner wall of the mounting cavity, a lower wiring disc and an upper wiring disc are respectively and fixedly mounted on the top wall and the bottom wall of the inner cavity of the mounting box body, connecting contacts and second wiring heads which are distributed in an annular array are respectively inserted on the lower wiring disc and the upper wiring disc, a rotating shaft is rotatably arranged in the middle between the lower wiring disc and the upper wiring disc, one shaft end of the rotating shaft extends to the outer cavity of the mounting box body and is mounted on the output end of the driving motor, and the driving motor is fixedly arranged on the outer wall of the mounting box body, the side wall of the rotating shaft is provided with a vertically arranged connecting feeler lever through a bracket, and the two ends of the connecting contact rod are contacted with the connecting contacts and the second wiring heads when rotating, the outer wall of the mounting box body is provided with wiring contacts the number of which is the same as that of the second wiring heads, and the second wiring heads are respectively connected with the wiring contacts in a matching way through wires.
3. The automatic switching device of the PT cabinet for the multiple incoming lines of claim 1, wherein: a plurality of air outlets are formed in the top wall of the cabinet body, air inlet grids are arranged on the side wall, corresponding to the position of the heat dissipation cavity, of the cabinet body, and a heat dissipation fan with an upward output end is arranged in the inner cavity of the heat dissipation cavity.
4. The automatic switching device of the PT cabinet for the multiple incoming lines of claim 3, wherein: the air inlet grids are provided with two groups and are symmetrically embedded on the opposite side walls of the cabinet body respectively.
5. The automatic switching device of the PT cabinet for the multiple incoming lines of claim 3 or 4, characterized in that: the grids on the air inlet grid are arranged downwards in an inclined manner from inside to outside.
6. The automatic switching device of the PT cabinet for the multiple incoming lines of claim 2, wherein: the ceiling of the front opening is arranged on the top wall of the cabinet body, and the ceiling is arranged downwards in an inclined manner from front to back.
7. The automatic switching device of the PT cabinet for the multiple incoming lines of claim 1, wherein: and a temperature sensor and a control unit for controlling the temperature sensor and the switching unit are arranged in the inner cavity of the mounting cavity, and the control unit is a PLC (programmable logic controller).
8. The automatic switching device of the PT cabinet for the multiple incoming lines of claim 1, wherein: and transparent observation windows are embedded in the positions of the upper cabinet door corresponding to the plurality of bus bars and the indicator lamp panel.
9. The automatic switching device of the PT cabinet for the multiple incoming lines of claim 1, wherein: and a plurality of bus bar heads for overvoltage protection are arranged on the bus bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011588863.7A CN112736663B (en) | 2020-12-29 | 2020-12-29 | PT cabinet automatic switching control equipment for multichannel inlet wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011588863.7A CN112736663B (en) | 2020-12-29 | 2020-12-29 | PT cabinet automatic switching control equipment for multichannel inlet wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112736663A true CN112736663A (en) | 2021-04-30 |
| CN112736663B CN112736663B (en) | 2023-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011588863.7A Active CN112736663B (en) | 2020-12-29 | 2020-12-29 | PT cabinet automatic switching control equipment for multichannel inlet wire |
Country Status (1)
| Country | Link |
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| CN (1) | CN112736663B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05225859A (en) * | 1992-02-07 | 1993-09-03 | Nesutetsuku:Kk | Push-lock switch |
| CN105977795A (en) * | 2016-06-27 | 2016-09-28 | 国网山东省电力公司蓬莱市供电公司 | Intelligent power switch cabinet |
| CN109999260A (en) * | 2019-03-22 | 2019-07-12 | 重庆懿熙品牌策划有限公司 | A kind of pull down mechanism and its self-switching type infusion support |
| CN110021508A (en) * | 2019-05-19 | 2019-07-16 | 张家霞 | It is a kind of to rotate from for formula circuit fuse protection equipment |
| CN210379796U (en) * | 2019-06-05 | 2020-04-21 | 安徽蓝德正华电子有限公司 | Outdoor waterproof electric control cabinet with high-efficiency heat dissipation |
| CN210420359U (en) * | 2019-08-23 | 2020-04-28 | 南和县文平纺织有限公司 | Line pipe switching device |
-
2020
- 2020-12-29 CN CN202011588863.7A patent/CN112736663B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05225859A (en) * | 1992-02-07 | 1993-09-03 | Nesutetsuku:Kk | Push-lock switch |
| CN105977795A (en) * | 2016-06-27 | 2016-09-28 | 国网山东省电力公司蓬莱市供电公司 | Intelligent power switch cabinet |
| CN109999260A (en) * | 2019-03-22 | 2019-07-12 | 重庆懿熙品牌策划有限公司 | A kind of pull down mechanism and its self-switching type infusion support |
| CN110021508A (en) * | 2019-05-19 | 2019-07-16 | 张家霞 | It is a kind of to rotate from for formula circuit fuse protection equipment |
| CN210379796U (en) * | 2019-06-05 | 2020-04-21 | 安徽蓝德正华电子有限公司 | Outdoor waterproof electric control cabinet with high-efficiency heat dissipation |
| CN210420359U (en) * | 2019-08-23 | 2020-04-28 | 南和县文平纺织有限公司 | Line pipe switching device |
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| Publication number | Publication date |
|---|---|
| CN112736663B (en) | 2023-11-03 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A PT cabinet automatic switching device for multiple incoming lines Granted publication date: 20231103 Pledgee: China Postal Savings Bank Co.,Ltd. Changfeng County Branch Pledgor: HEFEI SWITCH FACTORY Co.,Ltd. Registration number: Y2024980023596 |
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