CN114759480B - High stability DC power supply screen based on thing networking wireless communication - Google Patents
High stability DC power supply screen based on thing networking wireless communication Download PDFInfo
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- CN114759480B CN114759480B CN202210431186.0A CN202210431186A CN114759480B CN 114759480 B CN114759480 B CN 114759480B CN 202210431186 A CN202210431186 A CN 202210431186A CN 114759480 B CN114759480 B CN 114759480B
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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
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/065—Means for detecting or reacting to mechanical or electrical defects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B15/00—Supervisory desks or panels for centralised control or display
-
- 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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
-
- 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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Human Computer Interaction (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nonlinear Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Telephonic Communication Services (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a high-stability direct current power supply screen based on wireless communication of the Internet of things, which comprises the following components: the direct-current power supply screens are arranged side by side, and at least a temperature sensor and a humidity sensor are arranged in the direct-current power supply screens; the position adjusting mechanism is provided with a position adjusting end, the position adjusting end is connected with a camera module, and the camera module can be driven to move to the right opposite side of any direct current power supply screen through the movement of the position adjusting end; the sub-controller is arranged in the direct-current power supply screen and is used for receiving temperature data transmitted by the temperature sensor and humidity data transmitted by the humidity sensor and transmitting the temperature data and the humidity data to the main controller at regular time through the wireless communication module of the Internet of things; the main controller can directly control the position adjusting mechanism through the wireless communication module of the Internet of things.
Description
Technical Field
The invention relates to the technical field of direct current power supply screens, in particular to a high-stability direct current power supply screen based on wireless communication of the Internet of things.
Background
The direct-current power supply screen is short for a direct-current operation power supply system and consists of a mating power unit, a charging module unit, a step-down silicon chain unit, a storage battery pack, a battery monitoring unit, a monitoring module unit, a direct-current feed unit, an insulation monitoring unit and the like;
the direct current power supply screen is mainly applied to small and medium-sized power plants, hydropower stations, various substations and other users (such as petrifaction, mines, railways and the like) using direct current equipment in a power system, and is suitable for occasions such as instruments, meters, relay protection, fault illumination and the like in switch opening and closing and secondary circuits.
The existing direct current power supply screen usually adopts a temperature sensor and a humidity sensor to monitor the internal environment of the direct current power supply screen, so that simple maintenance is performed according to the monitoring result, the running stability of the direct current power supply screen is further ensured to a certain extent, and how to further improve the stability of the direct current power supply screen and monitor the direct current power supply screen in multiple directions becomes the focus of attention.
Therefore, it is necessary to provide a high-stability dc power supply screen based on wireless communication of the internet of things to solve the above problems.
Disclosure of Invention
In order to achieve the above purpose, the present invention provides the following technical solutions: high stability DC power supply screen based on thing networking wireless communication includes:
the direct-current power supply screens are arranged side by side, and at least a temperature sensor and a humidity sensor are arranged in the direct-current power supply screens;
the position adjusting mechanism is provided with a position adjusting end, the position adjusting end is connected with a camera module, and the camera module can be driven to move to the right opposite side of any direct current power supply screen through the movement of the position adjusting end; and
the sub-controller is arranged in the direct-current power supply screen and is used for receiving temperature data transmitted by the temperature sensor and humidity data transmitted by the humidity sensor, and transmitting the temperature data and the humidity data to the main controller at regular time through the wireless communication module of the Internet of things;
the main controller can directly control the position adjusting mechanism through the wireless communication module of the Internet of things.
Further, preferably, the dc power supply panel includes:
a mounting bin;
a sealing door hinged to one side of the mounting bin and capable of forming a sealing space with the mounting bin; and
the device comprises a first pipe body and a second pipe body which are fixedly connected up and down, wherein a row of vent holes which are distributed along the axial direction are uniformly distributed on the surfaces of the first pipe body and the second pipe body;
the upper part of the first pipe body is arranged on the upper top wall of the mounting bin in a sealing and rotating way, and the upper pipe body extends out of the upper top wall and is arranged in the first bin body in a sealing and rotating way;
wherein the lower part of the second pipe body is arranged on the lower top wall of the installation bin in a sealing and rotating way, and the lower top wall extends out of the installation bin and is arranged in the second bin body in a sealing and rotating way
The first bin body and the second bin body are used for pumping the water by the driving bin.
Further, preferably, a protective gas is preset in the driving bin and the installation bin.
Further, preferably, the device further comprises a driving assembly, the driving assembly comprising:
the piston is arranged in the driving bin in a sealing sliding manner;
an inner magnetic ring embedded on an outer circumference of the piston; and
the outer magnetic seat is sleeved outside the driving bin and driven by an external vertical driving mechanism, and the outer magnetic seat and the inner magnetic ring are magnetically attracted.
Further, preferably, a heat exchange tube is arranged in the driving bin, penetrates through the piston and is connected with the piston in a sealing sliding manner, and two ends of the heat exchange tube are connected with an external refrigeration system.
Further, preferably, the first tube body is driven to rotate by an external stepping motor;
threads are uniformly distributed on the outer surfaces of the first pipe body and the second pipe body so that the threads are connected with the plugging barrel, and the plugging barrel is in limited sliding connection with the side part of the installation bin.
Further, preferably, a plurality of heat dissipation fins are arranged on the back of the installation bin.
Further, preferably, the first bin body is provided with a gas treatment cylinder, and the gas treatment cylinder can pump gas and dry the gas.
Further, preferably, a pressure sensor is further disposed in the dc power supply panel 1, and when the pressure sensor detects that the air pressure in the dc power supply panel is lower than the standard air pressure, the air treatment cylinder supplements part of the air.
Further, preferably, the position adjusting mechanism at least includes a track for connecting the camera module, the track includes two symmetrically arranged arc portions, and two straight line portions connecting the two arcs, and the straight line portions correspond to the dc power supply panel.
Compared with the prior art, the invention provides the high-stability direct-current power supply screen based on the wireless communication of the Internet of things, which has the following beneficial effects:
in the embodiment of the invention, the sub-controllers can be used for receiving the temperature data transmitted by the temperature sensor and the humidity data transmitted by the humidity sensor, and transmitting the temperature data and the humidity data to the main controller at regular time through the wireless communication module of the Internet of things, so that the direct-current power supply screen is automatically monitored through the sensors such as the temperature sensor, the humidity sensor and the like; the main controller can directly control the position adjusting mechanism through the wireless communication module of the Internet of things, so that the direct-current power supply screen is manually and visually monitored through the camera module; in addition, the direct current power supply screen data of a plurality of areas can be summarized, analyzed and monitored through the wireless communication module of the Internet of things;
in the embodiment of the invention, the outer magnetic seat can be driven to move up and down through the external vertical driving mechanism, and the inner magnetic ring and the piston move along with the outer magnetic seat, so that the gas in the driving bin is sent out, the gas in the direct-current power supply screen is sucked, the gas exchange in the direct-current power supply screen is realized, and the gas in the driving bin can be subjected to heat exchange and temperature control through the heat exchange pipe, so that the direct-current power supply screen can be at a better working temperature, the working stability of the direct-current power supply screen is ensured, in addition, the protective gas is inert gas which can not support combustion and can not burn, and the oxidation speed of parts in the direct-current power supply screen can be effectively reduced.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a high-stability direct-current power supply screen based on wireless communication of the internet of things;
fig. 2 is a schematic diagram of control logic in a high-stability dc power supply screen based on wireless communication of the internet of things;
fig. 3 is a schematic structural diagram of a dc power supply panel in a high-stability dc power supply panel based on wireless communication of the internet of things;
fig. 4 is a schematic structural diagram of a driving component in a high-stability dc power supply screen based on wireless communication of the internet of things;
in the figure: 1. a direct current power supply screen; 2. a position adjusting mechanism; 3. a camera module; 11. a mounting bin; 12. sealing the door; 13. a first tube body; 14. a second tube body; 15. a first bin; 16. a second bin; 17. a driving bin; 18. a drive assembly; 19. a gas treatment cartridge; 110. a plugging cylinder; 111. a heat exchange tube; 181. a piston; 182. an inner magnetic ring; 183. an outer magnetic base.
Detailed Description
Referring to fig. 1 to 4, the present invention provides a high-stability dc power supply screen based on wireless communication of internet of things, comprising:
a plurality of direct current power supply screens 1 are arranged side by side, and at least a temperature sensor and a humidity sensor are arranged in the direct current power supply screens 1;
the position adjusting mechanism 2 is provided with a position adjusting end, the position adjusting end is connected with the camera module 3, and the camera module 3 can be driven to move to the right opposite side of any direct current power supply screen 1 through the movement of the position adjusting end; and
the sub-controller is arranged in the direct-current power supply screen 1 and is used for receiving temperature data transmitted by the temperature sensor and humidity data transmitted by the humidity sensor and transmitting the temperature data and the humidity data to the main controller at regular time through the wireless communication module of the Internet of things;
the main controller can directly control the position adjusting mechanism 2 through the wireless communication module of the internet of things.
It should be noted that in this embodiment, on one hand, the direct current power supply screen can be automatically monitored by the sensors such as the temperature sensor and the humidity sensor, and on the other hand, the direct current power supply screen can be manually and visually monitored by the camera module;
and the direct current power supply screen data of a plurality of areas can be summarized, analyzed and monitored through the wireless communication module of the Internet of things.
In this embodiment, as shown in fig. 3, the dc power supply panel 1 includes:
a mounting bin 11;
a sealing door 12 hinged to one side of the installation bin 11 and capable of forming a sealing space with the installation bin 11; and
the first pipe body 13 and the second pipe body 14 are fixedly connected up and down, and a row of vent holes distributed along the axial direction are uniformly distributed on the surfaces of the first pipe body 13 and the second pipe body 14;
the upper part of the first pipe body 13 is arranged on the upper top wall of the installation bin 11 in a sealing and rotating manner, and the upper top wall extends out of the installation bin 11 and is arranged in the first bin body 15 in a sealing and rotating manner;
wherein the lower part of the second pipe body 14 is arranged on the lower top wall of the installation bin 11 in a sealing and rotating way, and the lower top wall is extended out of the installation bin 11 in a sealing and rotating way and arranged in the second bin body 16
The first and second chambers are pumped by the drive chamber 17.
As a preferred embodiment, the driving chamber 17 and the mounting chamber 11 are pre-arranged with a protective gas.
More specifically, the shielding gas is preferably an inert gas which cannot support combustion and cannot burn, and the oxidation speed of parts in the direct-current power supply screen can be effectively reduced.
In addition, a drive assembly 18 is included, the drive assembly 18 including:
a piston 181 sealingly and slidably disposed in the drive chamber 17;
an inner magnetic ring 182 embedded on the outer circumference of the piston 181; and
the outer magnetic base 183 is sleeved outside the driving bin 17 and driven by an external vertical driving mechanism, and the outer magnetic base 183 and the inner magnetic ring 182 are magnetically attracted.
In particular, when the external magnetic seat 183 is driven to move upwards by the external vertical driving mechanism, the inner magnetic ring and the piston 181 move upwards, at this time, the gas above the piston in the driving bin 17 is sent to the first pipe body 13 and sprayed out, the gas in the mounting bin is pumped by the second pipe body and sent to the driving bin 17 and is located below the piston, and when the external vertical driving mechanism drives the external magnetic seat to move downwards, the inner magnetic ring and the piston 181 move downwards, at this time, the gas below the piston in the driving bin 17 is sent to the second pipe body and sprayed out, and the gas in the mounting bin is pumped by the first pipe body and sent to the driving bin 17 and is located above the piston;
in addition, in an alternative embodiment, the external vertical driving mechanism may be an air cylinder, and the air cylinder is utilized to drive the outer magnetic base 183 to move, so that a certain buffering property can be provided for the movement of the outer magnetic base 183;
in an alternative embodiment, the external vertical drive mechanism may be a hydraulic cylinder that provides a large hydraulic force to ensure stability of the movement of the outer magnet base 183;
in an alternative embodiment, the external vertical drive mechanism may be a lead screw nut pair structure that can accurately provide vertical drive, ensuring the accuracy of the movement of the outer magnet holder 183.
As a preferred embodiment, a heat exchange tube 111 is disposed in the driving chamber 17, the heat exchange tube 11 passes through the piston 181 and is connected with the piston in a sealing sliding manner, and two ends of the heat exchange tube 11 are connected with an external refrigeration system.
That is, the heat exchange and temperature control can be performed on the gas in the driving bin 17 through the heat exchange tube 111, so that the direct current power supply screen is ensured to be at a better working temperature, and the working stability of the direct current power supply screen is ensured.
As a preferred embodiment, the first tube 13 is driven to rotate by an external stepping motor;
threads are uniformly distributed on the outer surfaces of the first pipe body 13 and the second pipe body 14 so as to be connected with the plugging cylinder 110 through threads, and the plugging cylinder 110 is in limited sliding connection with the side part of the installation bin 11.
On one hand, the first pipe body and the second pipe body are driven by the stepping motor to rotate, so that the direction of the vent hole can be adjusted, and the targeted treatment of components in the direct current power supply screen is realized; on the other hand, the first pipe body and the second pipe body are driven to rotate through the stepping motor, so that the plugging cylinder can be driven to perform up-down plugging adjustment, and the targeted air outlet and air inlet treatment is realized.
As a preferred embodiment, the back of the installation bin 11 is provided with a plurality of heat dissipation fins.
As a preferred embodiment, the first bin 15 is provided with a gas treatment cylinder 19, and the gas treatment cylinder 19 can pump gas and dry the gas.
In addition, a pressure sensor is further disposed in the dc power supply panel 1, and when the pressure sensor detects that the air pressure in the dc power supply panel is lower than the standard air pressure, the air treatment cylinder 19 supplements part of the air.
In this embodiment, the position adjusting mechanism 2 includes at least a track for connecting the camera module 3, where the track includes two symmetrically arranged arc portions and two straight line portions connecting the two arcs, and the straight line portions correspond to the dc power supply panel 1.
In the specific implementation, the sub-controllers are utilized to receive temperature data transmitted by the temperature sensor and humidity data transmitted by the humidity sensor, and the temperature data and the humidity data are transmitted to the main controller at regular time through the wireless communication module of the Internet of things, so that the direct-current power supply screen is automatically monitored through the sensors such as the temperature sensor and the humidity sensor; the main controller can directly control the position adjusting mechanism 2 through the wireless communication module of the Internet of things, so that the direct-current power supply screen is manually and visually monitored through the camera module; and the direct current power supply screen data of a plurality of areas can be summarized, analyzed and monitored through the wireless communication module of the Internet of things.
The foregoing description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical solution of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (5)
1. High stability DC power supply screen based on thing networking wireless communication, its characterized in that: comprising the following steps:
the direct-current power supply comprises a plurality of direct-current power supply screens (1) which are arranged side by side, wherein at least a temperature sensor and a humidity sensor are arranged in the direct-current power supply screens (1);
the position adjusting mechanism (2) is provided with a position adjusting end, the position adjusting end is connected with the camera module (3), and the camera module (3) can be driven to move to the right opposite side of any direct current power supply screen (1) through the movement of the position adjusting end; and
the sub-controller is arranged in the direct-current power supply screen (1) and is used for receiving temperature data transmitted by the temperature sensor and humidity data transmitted by the humidity sensor and transmitting the temperature data and the humidity data to the main controller at regular time through the wireless communication module of the Internet of things;
the main controller can directly control the position adjusting mechanism (2) through the wireless communication module of the Internet of things;
the DC power supply panel (1) comprises:
a mounting bin (11);
a sealing door (12) hinged to one side of the installation bin (11) and capable of forming a sealed space with the installation bin (11); and
the device comprises a first pipe body (13) and a second pipe body (14) which are fixedly connected up and down, wherein a row of vent holes which are distributed along the axial direction are uniformly distributed on the surfaces of the first pipe body (13) and the second pipe body (14);
the upper part of the first pipe body (13) is arranged on the upper top wall of the installation bin (11) in a sealing and rotating way, and the upper top wall extends out of the installation bin to be arranged in the first bin body (15) in a sealing and rotating way;
the lower part of the second pipe body (14) is arranged on the lower top wall of the installation bin (11) in a sealing and rotating way, and the lower top wall extends out of the installation bin to be arranged in the second bin body (16) in a sealing and rotating way;
the first bin body and the second bin body are used for pumping the air by a driving bin (17);
further comprising a drive assembly (18), the drive assembly (18) comprising:
a piston (181) which is provided in the drive chamber (17) in a sealing sliding manner;
an inner magnetic ring (182) embedded on the outer circumference of the piston (181); and
the outer magnetic seat (183) is sleeved outside the driving bin (17) and driven by an external vertical driving mechanism, and the outer magnetic seat (183) and the inner magnetic ring (182) are magnetically attracted;
a heat exchange tube (111) is arranged in the driving bin (17), the heat exchange tube (111) penetrates through the piston (181) and is connected with the piston in a sealing sliding manner, and two ends of the heat exchange tube (111) are connected with an external refrigeration system;
the first pipe body (13) is driven to rotate by an external stepping motor;
threads are uniformly distributed on the outer surfaces of the first pipe body (13) and the second pipe body (14) so as to be connected with a plugging cylinder (110) through threads, and the plugging cylinder (110) is in limit sliding connection with the side part of the installation bin (11);
the first bin body (15) is provided with a gas treatment cylinder (19), and the gas treatment cylinder (19) can pump gas and dry the gas.
2. The high-stability direct-current power supply screen based on wireless communication of the internet of things according to claim 1, wherein: the driving bin (17) and the installation bin (11) are internally preset with protective gas.
3. The high-stability direct-current power supply screen based on wireless communication of the internet of things according to claim 1, wherein: the back of the installation bin (11) is provided with a plurality of radiating fins.
4. The high-stability direct-current power supply screen based on wireless communication of the internet of things according to claim 1, wherein: the direct-current power supply screen (1) is also provided with a pressure sensor, and when the pressure sensor detects that the air pressure in the direct-current power supply screen is lower than the standard atmospheric pressure, the air treatment cylinder (19) supplements part of air.
5. The high-stability direct-current power supply screen based on wireless communication of the internet of things according to claim 1, wherein: the position adjusting mechanism (2) at least comprises a track for connecting the camera module (3), wherein the track comprises two symmetrically arranged arc parts and two straight line parts for connecting the two arcs, and the straight line parts correspond to the direct current power supply screen (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210431186.0A CN114759480B (en) | 2022-04-22 | 2022-04-22 | High stability DC power supply screen based on thing networking wireless communication |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210431186.0A CN114759480B (en) | 2022-04-22 | 2022-04-22 | High stability DC power supply screen based on thing networking wireless communication |
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| CN114759480A CN114759480A (en) | 2022-07-15 |
| CN114759480B true CN114759480B (en) | 2023-09-26 |
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| CN202210431186.0A Active CN114759480B (en) | 2022-04-22 | 2022-04-22 | High stability DC power supply screen based on thing networking wireless communication |
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| CN117013418B (en) * | 2023-08-07 | 2024-04-26 | 南通旭泰自动化设备有限公司 | High-voltage switch GIS monitoring device with safety protection structure |
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| CN212750048U (en) * | 2020-07-10 | 2021-03-19 | 特斯联科技集团有限公司 | Pipe gallery monitoring and alarming system based on Internet of things |
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2022
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2105793A (en) * | 1981-07-15 | 1983-03-30 | Festo Maschf Stoll G | A pump machine |
| RU68471U1 (en) * | 2007-05-08 | 2007-11-27 | Евгений Александрович Черняк | LOCKING DEVICE |
| CN201858111U (en) * | 2010-04-30 | 2011-06-08 | 陈人德 | Piston type reciprocating double-action multi-cylinder mute gas exhaust device of vacuum pump |
| CN105337180A (en) * | 2015-10-16 | 2016-02-17 | 常熟开关制造有限公司(原常熟开关厂） | Power distribution cabinet and power distribution system |
| CN111276897A (en) * | 2020-03-06 | 2020-06-12 | 安徽明诚电力设备安装有限公司 | Self-cooling ring main unit based on sulfur hexafluoride insulation |
| CN212302560U (en) * | 2020-06-10 | 2021-01-05 | 大连电力勘察设计院有限公司 | Intelligent inspection equipment and inspection system for power distribution station |
| CN212750048U (en) * | 2020-07-10 | 2021-03-19 | 特斯联科技集团有限公司 | Pipe gallery monitoring and alarming system based on Internet of things |
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|---|---|
| CN114759480A (en) | 2022-07-15 |
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