CN112736663B - 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
- CN112736663B CN112736663B CN202011588863.7A CN202011588863A CN112736663B CN 112736663 B CN112736663 B CN 112736663B CN 202011588863 A CN202011588863 A CN 202011588863A CN 112736663 B CN112736663 B CN 112736663B
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- Prior art keywords
- cabinet
- cavity
- wiring
- cabinet body
- wall
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- 238000009434 installation Methods 0.000 claims abstract description 28
- 230000017525 heat dissipation Effects 0.000 claims description 18
- 238000005192 partition Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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
Landscapes
- 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 multipath incoming wires, which aims to solve the problems that the existing multipath incoming wire PT cabinet cannot automatically switch incoming wires according to actual conditions, circuit disconnection is not in time, the reliability of power supply is low, and the 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 multipath wire inlet to pass through. The invention is especially suitable for the safe use of the multipath incoming 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 an automatic switching device of a PT cabinet for multipath incoming lines.
Background
The PT cabinet, namely a voltage transformer cabinet, is generally directly arranged on a bus to detect the voltage of the bus and realize the protection function, and the PT cabinet is internally mainly provided with the voltage transformer PT, an isolating knife, a fuse, a lightning arrester and the like. PT cabinet adopts integrated configuration, can dispose PT of different quantity and kind according to specific engineering. The existing multipath 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 first alternating current operation power supply loop; the second voltage detection module, the second switch and the interlocking module are second alternating current operation power supply loops, the device can realize automatic switching of alternating current power supply, but the device is safe in use and cannot adapt to multiple incoming lines PT, and therefore, we propose a PT cabinet automatic switching device for multiple incoming lines.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides an automatic switching device of a PT cabinet for multipath wire inlet, which overcomes the defects of the prior art, has reasonable design and compact structure, and aims to solve the problems that the existing PT cabinet for multipath wire inlet cannot automatically switch wire inlet according to actual conditions, circuit disconnection is not timely, the reliability of power supply is low and the safety is not guaranteed.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme:
the utility model provides a PT cabinet automatic switching control equipment for multichannel inlet wire, includes the inside hollow cabinet body and the base that cabinet body lower extreme was installed, the inner chamber lower part level of the cabinet body is installed porous division board, and porous division board separates the inner chamber of the cabinet body into installation cavity and heat dissipation cavity in proper order top-down, is equipped with cabinet door and lower cabinet door on the front wall of the cabinet body corresponding to installation cavity and heat dissipation cavity position respectively;
the cabinet body corresponds the entrance that the installation cavity position is just on the lateral wall that is used for 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 multichannel inlet wire wiring respectively on the wiring board, and installs multiunit busbar on the inner chamber back wall of installation cavity, and the inner chamber middle part of installation cavity is equipped with the multiunit and corresponds the pilot lamp plate that corresponds multichannel inlet wire respectively, still install the switching element that is used for multichannel inlet wire automatic switch in the inner chamber of installation cavity.
Preferably, the switching unit comprises a mounting box body fixedly mounted on the inner wall of a mounting cavity, a lower wiring plate and an upper wiring plate are fixedly mounted on the top wall and the bottom wall of an inner cavity of the mounting box body respectively, connection contacts and second wiring heads which are distributed in an annular array are respectively inserted on the lower wiring plate and the upper wiring plate, a rotating shaft is mounted in the middle of the lower wiring plate and the upper wiring plate in a rotating mode, one shaft end of the rotating shaft extends to an outer cavity of the mounting box body and is mounted on the output end of the driving motor, the driving motor is fixedly mounted on the outer wall of the mounting box body, a connection contact rod which is vertically arranged is mounted on the side wall of the rotating shaft through a support, two ends of the connection contact rod are in contact with the connection contacts and the second wiring heads when rotating, and the outer wall of the mounting box body is provided with the same number of connection contacts as the second wiring heads, and the plurality of second wiring heads are respectively connected with the plurality of connection contacts in a matching mode through wires.
Preferably, a plurality of air outlets are formed in the top wall of the cabinet body, an air inlet grid is arranged on the side wall of the cabinet body corresponding to the position of the heat dissipation cavity, and a heat dissipation fan with an upward output end is arranged in the inner cavity of the heat dissipation cavity.
Preferably, the air inlet grids are provided with two groups and are respectively and symmetrically embedded on the opposite side walls of the cabinet body.
Preferably, the grids on the air inlet grid are inclined downwards from inside to outside.
Preferably, a ceiling with an opening at the front side is arranged on the top wall of the cabinet body, and the ceiling is obliquely downward arranged 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 installation cavity, and the control unit is a PLC controller.
Preferably, the upper cabinet door is embedded with a transparent observation window at a position corresponding to the plurality of groups of bus bars and the indication lamp panel.
Preferably, the busbar is provided with a plurality of busbar heads for overvoltage protection.
(III) beneficial effects
The embodiment of the invention provides an automatic switching device of a PT cabinet for multipath incoming lines, which has the following beneficial effects:
1. in the invention, when the two ends of the connecting feeler lever are connected with the wiring contact and the connecting contact of the corresponding access lead, the corresponding incoming line circuit is communicated; when the circuit is switched, the driving motor is started to drive the rotating shaft to rotate, then the support drives the connecting feeler lever to rotate, the two ends of the connecting feeler lever are connected with the wiring contact and the connecting contact of the other group of incoming wires, the circuit of the incoming wires is communicated, the circuit is matched with the use of the programmable control circuit, the automatic switching of the incoming wires can be carried out according to the actual situation, the circuit is disconnected timely, the reliability of power supply is improved, and the safe use of the voltage transformer PT is ensured.
2. According to the invention, through the arrangement of the heat radiation fan, the air inlet grid and the air outlet, the inner cavity of the cabinet body is sequentially divided into the mounting cavity and the heat radiation cavity from top to bottom by the porous partition plate, so that effective functional partition is realized, safe use is ensured, meanwhile, external rainwater is prevented from entering the inner cavity of the cabinet body, the heat radiation fan is matched with the arrangement of the temperature sensor, and when the temperature in the cabinet body is too high, the temperature of PT measured and PT measured in the cabinet body is effectively reduced, and safe use of the PT of the voltage transformer is ensured.
Drawings
The above characteristics, technical features, advantages and implementation modes of the PT cabinet automatic switching device for multi-path incoming line will be further described in a clear and understandable manner with reference to the accompanying drawings.
FIG. 1 is a schematic view of the appearance structure of the present invention;
FIG. 2 is a schematic diagram 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 showing the internal structure of the switching unit according to the present invention;
fig. 5 is a block diagram of the structure of the present invention.
In the figure: the cabinet body 1, the installation 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 wiring connector 11, the switching unit 12, the installation box 121, the connecting contact 122, the wiring contact 123, the lower wiring disc 124, the upper wiring disc 125, the second wiring connector 126, the connecting contact rod 127, the support 128, the rotating shaft 129, the driving motor 1210, the bus bar 13, the bus bar 131, the indicator light board 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 is further illustrated by the following examples in connection with figures 1-5:
example 1
The utility model provides a PT cabinet automatic switching control equipment for multichannel inlet wire, includes inside hollow cabinet body 1 and the base 2 that cabinet body 1 lower extreme was installed, the inner chamber lower part level of cabinet body 1 is installed porous division board 15, and porous division board 15 separates into installation cavity 101 and heat dissipation cavity 102 with the inner chamber top-down of cabinet body 1 in proper order, is equipped with cabinet door 5 and lower cabinet door 7 respectively on the front wall of cabinet body 1 corresponding to installation cavity 101 and heat dissipation cavity 102 position;
in this embodiment, as shown in fig. 1-2, the side wall of the cabinet body 1 corresponding to the position of the installation cavity 101 is provided with a plurality of wire inlets 8 for multiple wire inlets to pass through, the inner wall of the installation cavity 101 is provided with a wiring board 10, the wiring board 10 is provided with first wiring heads 11 corresponding to the multiple wire inlets respectively, each first wiring head 11 is connected with a corresponding wire inlet, circuit connection and switching of multiple wire inlets are guaranteed, the rear wall of the inner cavity of the installation cavity 101 is provided with a plurality of groups of bus bars 13, the middle part of the inner cavity of the installation cavity 101 is provided with a plurality of groups of indicator light boards 14 corresponding to the multiple wire inlets respectively, the inner cavity of the installation cavity 101 is also provided with a switching unit 12 for automatically switching the multiple wire inlets, the indicator light boards 14 are used for displaying the communication condition of the circuit in real time, and simultaneously, the part needing to be maintained can be indicated during maintenance, the wiring of the bus bars 13 is matched, and the voltage transformer PT is installed in a time-saving and labor-saving manner.
In this embodiment, as shown in fig. 2-4, the switching unit 12 includes a mounting box 121 fixedly mounted on an inner wall of the mounting cavity 101, and a lower wiring board 124 and an upper wiring board 125 are respectively fixedly mounted on a top wall and a bottom wall of an inner cavity of the mounting box 121, connection contacts 122 and second wiring boards 126 distributed in an annular array are respectively inserted on the lower wiring board 124 and the upper wiring board 125, a rotation shaft 129 is rotatably mounted in a middle portion between the lower wiring board 124 and the upper wiring board 125, one shaft end of the rotation shaft 129 extends to an outer cavity of the mounting box 121 and is mounted on an output end of the driving motor 1210, the driving motor 1210 is fixedly mounted on an outer wall of the mounting box 121, a connection contact rod 127 vertically arranged on a side wall of the rotation shaft 129 is mounted through a bracket 128, two ends of the connection contact rod 127 are contacted with the connection contacts 122 and the second wiring boards 126 when rotating, a plurality of second wiring boards 126 are respectively connected with the connection contacts 123 in a matching manner through wires, and two ends of the connection contact rods 127 are connected with corresponding wires 122 when connected with corresponding wires; when the circuit is switched, the driving motor 1210 is started to drive the rotating shaft 129 to rotate, then the connecting contact rod 127 is driven to rotate through the support 128, two ends of the connecting contact rod 127 are connected with the wiring contacts 123 and the connecting contacts 122 of the other group of wires, the circuits of the wires are communicated, the use of the programmable control circuit is matched, the automatic switching of the wires can be carried out according to actual conditions, and the use is guaranteed.
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 the inner cavity of the installation cavity 101, the control unit 18 is a PLC controller, and the control unit 18 is used for controlling automatic switching of circuits after multipath wire inlet in the PT cabinet, so as to ensure providing a voltage loop of the meter.
In this embodiment, as shown in fig. 1, the transparent observation windows 6 are embedded in the upper cabinet door 5 corresponding to the plurality of groups of bus bars 13 and the indication lamp panels 14, so that the running condition of PT (voltage transformer) in the cabinet body 1 can be observed at any time.
In this embodiment, as shown in fig. 2, the busbar 13 is provided with a plurality of busbar heads 131 for overvoltage protection, so as to ensure the relay protection requirement.
Example 2
The difference between this embodiment and embodiment 1 is that, as shown in fig. 1-2, a plurality of air outlets 4 are formed on the top wall of the cabinet body 1, an air inlet grid 17 is arranged on the side wall of the cabinet body 1 corresponding to the position of the heat dissipation cavity 102, heat dissipation fans 16 with upward output ends are arranged in the inner cavity of the heat dissipation cavity 102, the air inlet grids 17 are provided with two groups and are respectively and symmetrically embedded on the opposite side walls of the cabinet body 1, air inlet cooling is guaranteed, the grids on the air inlet grids 17 are inclined downward from inside to outside, external rainwater is prevented from entering the inner cavity of the cabinet body 1, a ceiling 3 with a front side opening is arranged on the top wall of the cabinet body 1, the ceiling 3 is inclined downward from front to back, external rainwater is prevented from entering the inner cavity of the cabinet body 1, the heat dissipation fans 16 are matched with the temperature sensor, and when the temperature in the cabinet body 1 is too high, the temperature of PT and the measurement PT in the cabinet body 1 is effectively reduced.
Other undescribed structures refer to embodiment 1.
The embodiments of the present invention are disclosed as preferred embodiments, but not limited thereto, and those skilled in the art will readily appreciate from the foregoing description that various extensions and modifications can be made without departing from the spirit of the present invention.
Claims (8)
1. The PT cabinet automatic switching device for the multipath incoming line comprises a cabinet body with a hollow inside and a base arranged at the lower end of the cabinet body, and is characterized in that a porous partition plate is horizontally arranged at the lower part 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 porous 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 cavity and the heat dissipation cavity;
the cabinet body is provided with a plurality of wire inlets for multiple paths of wire inlets to pass through on the side wall corresponding to the position of the mounting cavity, the inner wall of the mounting cavity is provided with a wiring board, the wiring board is provided with first wiring heads respectively corresponding to the multiple paths of wire inlets, the rear wall of the inner cavity of the mounting cavity is provided with a plurality of groups of bus bars, the middle part of the inner cavity of the mounting cavity is provided with a plurality of groups of indicator light boards respectively corresponding to the multiple paths of wire inlets, and the inner cavity of the mounting cavity is also provided with a switching unit for automatically switching the multiple paths of wire inlets;
the switching unit comprises an installation box body fixedly installed on the inner wall of an installation cavity, a lower wiring plate and an upper wiring plate are fixedly installed on the top wall and the bottom wall of an inner cavity of the installation box body respectively, connection contacts and second wiring heads which are distributed in an annular array are respectively inserted on the lower wiring plate and the upper wiring plate, a rotating shaft is installed in the middle of the lower wiring plate and the upper wiring plate in a rotating mode, one shaft end of the rotating shaft extends to an outer cavity of the installation box body and is installed on the output end of a driving motor, the driving motor is fixedly installed on the outer wall of the installation box body, connection feelers which are vertically arranged are installed on the side wall of the rotating shaft through brackets, two ends of the connection feelers are in contact with the connection contacts and the second wiring heads when rotating, wiring contacts with the same quantity as the second wiring heads are arranged on the outer wall of the installation box body, and a plurality of second wiring heads are respectively connected with a plurality of wiring contacts in a matching mode through wires.
2. The PT cabinet automatic switching apparatus for multi-way incoming line as claimed in claim 1, wherein: a plurality of air outlets are formed in the top wall of the cabinet body, an air inlet grid is arranged on the side wall of the cabinet body corresponding to the position of the heat dissipation cavity, and a heat dissipation fan with an upward output end is arranged in the inner cavity of the heat dissipation cavity.
3. The PT cabinet automatic switching apparatus for multi-path incoming line as claimed in claim 2, wherein: the air inlet grids are provided with two groups and are respectively and symmetrically embedded on the opposite side walls of the cabinet body.
4. The PT cabinet automatic switching apparatus for multi-path incoming line as claimed in claim 2, wherein: the grids on the air inlet grids are inclined downwards from inside to outside.
5. The PT cabinet automatic switching apparatus for multi-way incoming line as claimed in claim 1, wherein: the top wall of the cabinet body is provided with a ceiling with an opening at the front side, and the ceiling is obliquely arranged downwards from front to back.
6. The PT cabinet automatic switching apparatus for multi-way incoming line as claimed in claim 1, wherein: the inner cavity of the installation cavity is provided with a temperature sensor and a control unit for controlling the temperature sensor and the switching unit, and the control unit is a PLC controller.
7. The PT cabinet automatic switching apparatus for multi-way incoming line as claimed in claim 1, wherein: the transparent observation window is embedded in the position of the upper cabinet door corresponding to the plurality of groups of bus bars and the indicating lamp panel.
8. The PT cabinet automatic switching apparatus for multi-way incoming line as claimed in claim 1, wherein: and a plurality of bus heads for overvoltage protection are arranged on the bus.
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 CN112736663A (en) | 2021-04-30 |
| CN112736663B true 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 |
|---|---|
| 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 |
|---|---|
| CN112736663A (en) | 2021-04-30 |
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