CN110912006A - Cooling device for box-type substation and box-type substation - Google Patents
Cooling device for box-type substation and box-type substation Download PDFInfo
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- CN110912006A CN110912006A CN201911227724.9A CN201911227724A CN110912006A CN 110912006 A CN110912006 A CN 110912006A CN 201911227724 A CN201911227724 A CN 201911227724A CN 110912006 A CN110912006 A CN 110912006A
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- box
- type substation
- fan
- refrigerant
- door body
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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
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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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
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B7/00—Enclosed substations, e.g. compact substations
- H02B7/06—Distribution substations, e.g. for urban network
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention provides a cooling device for a box-type substation and the box-type substation; wherein the cooling device comprises a radiator and a fan; the radiator and the fan are arranged on a door body of the box-type substation; the radiator is filled with a refrigerant; the refrigerant in the radiator positioned in the door body absorbs the heat in the box-type substation, the refrigerant is converted into a gaseous state from a liquid state, the gaseous refrigerant is transferred into the radiator positioned outside the door body, the gaseous refrigerant releases the heat into the air outside the box-type substation and is converted into the liquid state from the gaseous state, and the liquid refrigerant flows back to the radiator positioned in the door body; the fan is used for circulating air in the box-type substation, so that the cooled air is conveyed to other positions of the box-type substation. The invention improves the cooling effect and the protection grade of the box-type substation cooling equipment.
Description
Technical Field
The invention relates to the technical field of power transformation, in particular to a cooling device for a box-type substation and the box-type substation.
Background
In the prior art, cooling equipment of a box-type substation comprises air cooling equipment and water cooling equipment, wherein the air cooling equipment has high noise and low protection level, and the problems of dust and condensation are difficult to solve; the water cooling equipment has relatively high cost, large occupied space and potential safety hazards such as liquid leakage and the like. In addition, along with the increase of the power of the charging power module of the charging box type substation, the heat exchange coefficient of the traditional air cooling equipment or water cooling equipment is small, and the cooling effect is difficult to guarantee.
Aiming at the problems of poor cooling effect and low protection level of the existing box-type substation cooling equipment, an effective solution is not provided yet.
Disclosure of Invention
In view of the above, the present invention provides a cooling device for a box-type substation and the box-type substation, so as to improve the cooling effect and the protection level of the cooling device of the box-type substation.
In a first aspect, an embodiment of the present invention provides a cooling device for a box-type substation, including a radiator and a fan; the radiator and the fan are arranged on a door body of the box-type substation; the radiator is filled with a refrigerant; the refrigerant in the radiator positioned in the door body absorbs the heat in the box-type substation, the refrigerant is converted into a gaseous state from a liquid state, the gaseous refrigerant is transferred into the radiator positioned outside the door body, the gaseous refrigerant releases the heat into the air outside the box-type substation and is converted into the liquid state from the gaseous state, and the liquid refrigerant flows back to the radiator positioned in the door body; the fan is used for circulating air in the box-type substation, so that the cooled air is conveyed to other positions of the box-type substation.
With reference to the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, wherein the heat sink includes a plurality of heat dissipation fins, and a refrigerant is vacuum-filled in each of the heat dissipation fins.
With reference to the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, wherein a top portion of the heat sink is disposed to be inclined toward an outside of the door body, so that the refrigerant converted into a gaseous state is conveyed into the heat sink located at the outside of the door body.
With reference to the first aspect, an embodiment of the present invention provides a third possible implementation manner of the first aspect, wherein an air inlet of the fan is disposed at the heat sink; the air outlet of the fan is arranged on the inner wall of the box-type substation on the opposite side of the door body.
With reference to the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, where the fan includes a centrifugal fan.
With reference to the first aspect, an embodiment of the present invention provides a fifth possible implementation manner of the first aspect, where the cooling device further includes a temperature sensor and a control chip; the control chip is respectively connected with the temperature sensor and the fan; the temperature sensor is used for monitoring the temperature of the box-type substation; the control chip is used for starting the fan when the temperature is higher than the temperature threshold value, and closing the fan when the temperature is not higher than the temperature threshold value.
With reference to the fifth possible implementation manner of the first aspect, an embodiment of the present invention provides a sixth possible implementation manner of the first aspect, wherein the cooling apparatus further includes a humidity sensor and a heating plate; the humidity sensor and the heating plate are respectively connected with the control chip; the humidity sensor is used for monitoring the humidity of the box-type substation; the control chip is used for starting the heating plate when the humidity is higher than the humidity threshold value, and closing the heating plate when the humidity is not higher than the humidity threshold value.
With reference to the sixth possible implementation manner of the first aspect, an embodiment of the present invention provides a seventh possible implementation manner of the first aspect, wherein the heating plate is disposed at a bottom of the box-type substation.
In a second aspect, an embodiment of the present invention provides a box-type substation, including a box-type substation body and the above-mentioned cooling device; the box-type substation body comprises a charging box-type substation.
With reference to the second aspect, the present invention provides a first possible implementation manner of the second aspect, wherein the heat sink and the fan in the cooling device are integrated into a module; and the modular cooling equipment is arranged on a door body of the box-type substation.
The embodiment of the invention has the following beneficial effects:
according to the cooling equipment for the box-type substation and the box-type substation, provided by the embodiment of the invention, the heat in the box-type substation is released to the air outside the box-type substation through the conversion of the refrigerant in the radiator between the liquid state and the gaseous state; and circulating the air in the box-type substation through a fan, and conveying the cooled air to other positions of the box-type substation. This mode has the cooling that can realize box-type substation high-efficiently through filling have the refrigerant, and the noise is little, further improves the cooling effect through the fan, simultaneously, realizes the air inner loop in the box-type substation through the fan, has avoided condensation, dust scheduling problem, has improved box-type substation's protection level.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is an external structural schematic diagram of a cooling device for a box-type substation according to an embodiment of the present invention;
fig. 2 is a schematic internal structural diagram of a cooling device for a box-type substation according to an embodiment of the present invention;
fig. 3 is an inside front view of a cooling apparatus for a box-type substation according to an embodiment of the present invention;
fig. 4 is a block diagram of a box-type substation according to an embodiment of the present invention.
Icon: 10-a heat sink; 11-a fan; 12-a door body; 40-box type substation body; 41-Cooling device.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In consideration of the problems of poor cooling effect and low protection level of the existing box-type substation cooling equipment, the embodiment of the invention provides the cooling equipment for the box-type substation and the box-type substation; the technology can be applied to the field of temperature control and protection of various box-type substations and can be realized by adopting related software and hardware.
For the convenience of understanding the embodiment of the present invention, a cooling device for a box-type substation disclosed in the embodiment of the present invention will be described in detail.
The first embodiment is as follows:
referring to fig. 1, an external structural view of a cooling apparatus for a box-type substation and an internal structural view of a cooling apparatus for a box-type substation shown in fig. 2;
the cooling apparatus includes a radiator 10 and a fan 11; the radiator 10 and the fan 11 are arranged on a door body 12 of the box-type substation; the heat sink 10 is filled with a refrigerant.
Fig. 1 is a perspective view looking down from the right side above the front of a box-type substation, two door bodies are installed on the front of the box-type substation, and each door body is provided with a set of cooling equipment; taking the door body as a boundary, each cooling device can be divided into an outer door body part and an inner door body part, and the structure of the cooling device at the outer door body part can be seen in fig. 1.
The refrigerant in the radiator 10 positioned in the door body 12 absorbs the heat in the box-type substation, the refrigerant is converted from liquid state into gas state, the gas refrigerant is transferred into the radiator 10 positioned outside the door body, the gas refrigerant releases heat into the air outside the box-type substation and is converted from gas state into liquid state, and the liquid refrigerant flows back to the radiator 10 positioned in the door body;
the fan 11 is used for circulating air in the box-type substation, so that the cooled air is delivered to other positions of the box-type substation. Generally, the cooling equipment is installed on a door body of a box-type substation, so that the temperature of the position close to the front door body is lower, and the temperature of the position far away from the door body is higher in the box-type substation; therefore, the other positions include a position far from the door body in the box-type substation.
In the box-type substation, the air temperature near the radiator is lower, and the air temperature far away from near the radiator is higher, because comparatively airtight in the box-type substation leads to the air mobility poor, therefore, set up the air flow that the fan can help in the box-type substation, improves the effect of radiator cooling.
It can be understood that when the temperature of the air outside the box-type substation is low, or the heat generated by the box-type substation is low, the fan can be turned off, and only the radiator is adopted for cooling, so that the electric energy consumed by the fan is saved.
The cooling equipment for the box-type substation provided by the embodiment of the invention comprises a radiator and a fan, wherein the radiator and the fan are arranged on a door body of the box-type substation; the heat in the box-type substation is released to the air outside the box-type substation through the conversion between liquid and gas states of the refrigerant in the radiator; and circulating the air in the box-type substation through a fan, and conveying the cooled air to other positions of the box-type substation. This mode has the cooling that can realize box-type substation high-efficiently through filling have the refrigerant, and the noise is little, further improves the cooling effect through the fan, simultaneously, realizes the air inner loop in the box-type substation through the fan, has avoided condensation, dust scheduling problem, has improved box-type substation's protection level.
In addition, in the embodiment of the invention, the cooling equipment is arranged on the door body of the box-type substation, so that the space in the box-type substation is not additionally occupied, and the space is saved for the box-type substation.
Furthermore, the radiator comprises a plurality of radiating fins, and a refrigerant is filled in each radiating fin in a vacuum manner.
The refrigerant is a working fluid used for transferring heat energy in a refrigeration system to generate a refrigeration effect; generally, the refrigerants include gas refrigerants, liquid refrigerants and solid refrigerants; wherein, the gas refrigerant mainly comprises air and the like; the liquid refrigerant includes water, saline water and the like; ice, dry ice, and the like are used as the solid refrigerant. The refrigerants may be classified into Primary (Primary) refrigerants and Secondary (Secondary) refrigerants according to operation modes, and may be classified into Natural (Natural) refrigerants and Synthetic (Synthetic) refrigerants according to material attributes.
See the common refrigerant type and the highest working pressure comparison table shown in table 1;
preferably, in an embodiment of the present invention, the type of the refrigerant filled in the heat sink is R134 a; the R134a (1, 1, 1, 2-tetrafluoroethane) is a refrigerant which does not contain chlorine atoms, does not destroy the ozone layer, has good safety performance (is nonflammable, non-explosive, nontoxic, nonirritant and noncorrosive), and has refrigerating capacity and efficiency very close to those of R12 (dichlorodifluoromethane and Freon). R-134a is the mainstream environment-friendly refrigerant at present and is widely used for being added in the initial installation and maintenance process of new refrigeration air-conditioning equipment. R134a is very low in toxicity, non-flammable in air, and safe in A1, and is a very safe refrigerant. Therefore, the R134a is adopted in the embodiment of the invention, the protection level of the cooling equipment on the box-type substation can be further ensured, and the safety performance of the equipment is improved.
Furthermore, the top of the radiator is inclined towards the outside of the door body, so that the refrigerant converted into the gaseous state is conveyed into the radiator positioned at the outside of the door body. By the above mode, the refrigerant in the radiator can realize sufficient heat exchange, and the cooling effect of the radiator is further improved.
In practical implementation, in order to ensure the stability of the cooling device, the inclination angle of the top of the heat sink towards the outside of the door body is usually small, and the inclination angle can be set according to relevant parameters such as the thickness of the door body and the size of the cooling device.
Referring to fig. 3, an inside elevation view of a cooling apparatus for a box-type substation is shown; the air inlet of the fan 11 is arranged at the radiator 10; an air outlet of the fan 11 is arranged on the inner wall of the box-type substation on the opposite side of the door body (not output in fig. 3).
As shown in fig. 3, the six fans are arranged on the wall of the radiator, the inlets of the fans are tightly attached to the wall of the radiator, and the outlets of the fans can extend to the inner wall of the opposite side of the door body of the box-type substation through pipelines.
By means of the method, cooled air can be prevented from being gathered near the door body of the box-type substation, and the cooling effect of the cooling equipment is further improved.
In practical implementation, the fan includes a centrifugal fan. The centrifugal fan accelerates gas by using an impeller rotating at a high speed according to the principle that kinetic energy is converted into potential energy, and then decelerates and changes the flow direction so as to convert the kinetic energy into the potential energy (pressure). In a single stage centrifugal fan, the gas enters the impeller from an axial direction, changes to a radial direction as it flows through the impeller, and then enters the diffuser. In diffusers, the gas changes flow direction and the increase in conduit cross-sectional area slows the gas flow, which converts kinetic energy into pressure energy. The pressure increase occurs primarily in the impeller, as well as during the diffusion process. In a multistage centrifugal fan, a flow reverser is used to direct the air flow to the next impeller, creating a higher pressure.
Further, the cooling device further comprises a temperature sensor and a control chip; the control chip is respectively connected with the temperature sensor and the fan; the temperature sensor is used for monitoring the temperature of the box-type substation; the control chip is used for starting the fan when the temperature is higher than the temperature threshold value, and closing the fan when the temperature is not higher than the temperature threshold value. In practical implementation, the control chip may be a single chip or a DSP chip.
By the mode, the fan in the cooling equipment can be started when the temperature is higher than the temperature threshold value, so that the energy consumption of the cooling equipment is saved, and the intelligent degree of control of the cooling equipment is improved.
In order to improve the mode grade of the box-type substation, the cooling equipment further comprises a humidity sensor and a heating plate; the humidity sensor and the heating plate are respectively connected with the control chip; the humidity sensor is used for monitoring the humidity of the box-type substation; the control chip is used for starting the heating plate when the humidity is higher than the humidity threshold value, and closing the heating plate when the humidity is not higher than the humidity threshold value. Typically, the heating plate is provided at the bottom of the box-type substation.
By the aid of the method, power transformation accidents of the box-type substation in a humid environment can be avoided, and air inside the box-type substation is kept dry.
The cooling equipment for the box-type substation provided by the embodiment of the invention is assembled on a door body of the box-type substation, the heat exchange power is 7.5KW, and the cooling equipment is mainly designed under the condition that the efficiency of 10 groups of 15KW direct current charging modules is 95%. The cooling equipment is divided into two parts by taking the door as a boundary, after the cooling equipment absorbs heat in the inner part of the door, the refrigerant filled in the radiator in vacuum is converted into gas from liquid, transferred to the outer part of the door, cooled into liquid by air and then reflowed to the inner part to absorb heat, and the circulation realizes high-efficiency cooling. Meanwhile, the centrifugal fan is arranged on the cooling equipment, so that the noise is low, the internal ventilation is realized, cold air is ensured to enter from the air inlet of the module and to be exhausted from the back of the box-type substation, and the air self-circulation is realized in the box-type substation. Meanwhile, a temperature sensor is additionally arranged at an air inlet of a direct-current charging module of the box-type substation for intelligent control, the internal circulation fan is started when the set temperature is reached, and only the radiator absorbs heat through gas-liquid conversion when the set temperature is lower than the set temperature, so that no electric energy is consumed.
Because the cooling equipment and the door body of the box-type substation can be well assembled, and the fan can enable the internal air of the box-type substation to realize self circulation, the box-type substation can ensure higher protection level, the problems of condensation and dust can be well inhibited, and a humidity sensor and a heating plate can be added in the box-type substation to control the humidity in a humid and severe area.
Example two:
corresponding to the cooling device for a box-type substation provided in the first embodiment, refer to a block diagram of a box-type substation shown in fig. 4, the box-type substation including a box-type substation body 40 and the cooling device 41; the box-type substation body 40 includes a charging box-type substation.
The types of the box-type substation can be divided into a common type and a compact type. The common box type substations include ZBW type and XWB type, and the compact box type substations include ZB 1-336 type and GE box type. The 10KV power distribution device of the box-type substation does not need a breaker, is commonly provided with an FN 5-10 type or FN 7-10 type load switch, a fuse and a ring network power supply device, and is connected to the high-voltage end of a transformer from an adjacent overhead line. According to different product structures and different adopted components, the two typical styles of European box transformers and American box transformers are adopted.
Further, a radiator and a fan in the cooling device are integrated into a module; and the modular cooling equipment is arranged on a door body of the box-type substation.
Above-mentioned modular cooling device can make the cooling device extension of being convenient for more, makes the cooling device changeing standardizedly to do not influence box-type substation's overall structure.
The box-type substation provided by the embodiment of the invention has the same technical characteristics as the cooling equipment for the box-type substation provided by the embodiment, so that the same technical problems can be solved, and the same technical effects can be achieved.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A cooling device for a box-type substation is characterized by comprising a radiator and a fan;
the radiator and the fan are arranged on a door body of the box-type substation; the radiator is filled with a refrigerant;
the refrigerant in the radiator positioned in the door body absorbs heat in the box-type substation, the refrigerant is converted from liquid state into gaseous state, the gaseous refrigerant is transferred into the radiator positioned outside the door body, the gaseous refrigerant releases heat into air outside the box-type substation and is converted from gaseous state into liquid state, and the liquid refrigerant flows back into the radiator positioned in the door body;
the fan is used for circulating air in the box-type substation, so that the cooled air is conveyed to other positions of the box-type substation.
2. The cooling apparatus as claimed in claim 1, wherein the heat sink includes a plurality of heat dissipating fins, and the refrigerant is vacuum-filled in each of the heat dissipating fins.
3. The cooling apparatus according to claim 1, wherein a top portion of the heat sink is inclined toward an outside of the door body, so that the refrigerant converted into the gaseous state is delivered into the heat sink located at the outside of the door body.
4. The cooling apparatus according to claim 1, wherein an air inlet of the fan is provided at the radiator; and the air outlet of the fan is arranged on the inner wall of the box-type substation on the opposite side of the door body.
5. The cooling apparatus of claim 1, wherein the fan comprises a centrifugal fan.
6. The cooling apparatus according to claim 1, characterized in that the cooling apparatus further comprises a temperature sensor and a control chip;
the control chip is respectively connected with the temperature sensor and the fan;
the temperature sensor is used for monitoring the temperature of the box-type substation; the control chip is used for starting the fan when the temperature is higher than the temperature threshold value, and closing the fan when the temperature is not higher than the temperature threshold value.
7. The cooling apparatus of claim 6, further comprising a humidity sensor and a heating plate;
the humidity sensor and the heating plate are respectively connected with the control chip;
the humidity sensor is used for monitoring the humidity of the box-type substation; the control chip is used for starting the heating plate when the humidity is higher than a humidity threshold value, and closing the heating plate when the humidity is not higher than the humidity threshold value.
8. Cooling apparatus according to claim 7 wherein the heating plate is provided at the bottom of the box substation.
9. A box-type substation, characterized by comprising a box-type substation body and the cooling device of any one of claims 1 to 8;
the box-type substation body comprises a charging box-type substation.
10. A substation according to claim 9, wherein the radiators and fans in the cooling equipment are integrated into a module;
and the modularized cooling equipment is arranged on a door body of the box-type substation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911227724.9A CN110912006A (en) | 2019-12-04 | 2019-12-04 | Cooling device for box-type substation and box-type substation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911227724.9A CN110912006A (en) | 2019-12-04 | 2019-12-04 | Cooling device for box-type substation and box-type substation |
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| CN110912006A true CN110912006A (en) | 2020-03-24 |
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| CN201911227724.9A Pending CN110912006A (en) | 2019-12-04 | 2019-12-04 | Cooling device for box-type substation and box-type substation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117913995A (en) * | 2024-01-23 | 2024-04-19 | 江苏新宏泽电力科技有限公司 | Visual monitoring management system for substation |
-
2019
- 2019-12-04 CN CN201911227724.9A patent/CN110912006A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117913995A (en) * | 2024-01-23 | 2024-04-19 | 江苏新宏泽电力科技有限公司 | Visual monitoring management system for substation |
| CN117913995B (en) * | 2024-01-23 | 2024-07-05 | 江苏新宏泽电力科技有限公司 | Visual monitoring management system for substation |
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