CN111952866A - Little electric wire netting power supply system of power distribution station - Google Patents

Little electric wire netting power supply system of power distribution station Download PDF

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Publication number
CN111952866A
CN111952866A CN202010852590.6A CN202010852590A CN111952866A CN 111952866 A CN111952866 A CN 111952866A CN 202010852590 A CN202010852590 A CN 202010852590A CN 111952866 A CN111952866 A CN 111952866A
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CN
China
Prior art keywords
micro
distribution box
power supply
supply system
grid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010852590.6A
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Chinese (zh)
Inventor
彭海波
陈毅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huaxiang Xiangneng Technology Co Ltd
Original Assignee
Huaxiang Xiangneng Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huaxiang Xiangneng Technology Co Ltd filed Critical Huaxiang Xiangneng Technology Co Ltd
Priority to CN202010852590.6A priority Critical patent/CN111952866A/en
Publication of CN111952866A publication Critical patent/CN111952866A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/46Boxes; Parts thereof or accessories therefor
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/28Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56Cooling; Ventilation
    • H02B1/565Cooling; Ventilation for cabinets

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Patch Boards (AREA)

Abstract

The invention relates to the technical field of a micro-grid power supply system, in particular to a micro-grid power supply system of a power distribution station, which comprises a micro-grid distribution box, wherein the front end surface of the micro-grid distribution box is hinged with a box door, an internally communicated wire inlet pipe is embedded at the position, close to the bottom, of the left end surface of the micro-grid distribution box, a ventilation groove is formed in the left end surface of the micro-grid distribution box, a wire outlet pipe communicated with the inside is also embedded at the position, close to the center of the rear end, of the right end surface; this power distribution station's little electric wire netting power supply system disposes the display screen in the mounting groove, be connected with inside controller, the person of facilitating the use in time knows holistic transmission of electricity situation through the display screen, ventilation groove cooperation filter plate is convenient for filter particulate matter and insect among the outside air, prevent to enter into inside, cause the damage to inside, inlet wire pipe and the cooperation of outlet wire pipe are convenient for insert and connect out the connecting wire that corresponds, are convenient for carry the power supply and use.

Description

Little electric wire netting power supply system of power distribution station
Technical Field
The invention relates to the technical field of micro-grid power supply systems, in particular to a micro-grid power supply system of a power distribution station.
Background
The power distribution station is a power distribution station, and the task of the power distribution station is to transmit power to electric equipment or users, namely the power distribution station can receive, distribute, control and protect the electric energy in the use process, but does not transform the electric energy, in order to realize the purposes of distribution, control and the like, a plurality of switches and other components are needed, and the switches and other components are needed to be installed by using a switch cabinet in the realization process, when the power distribution station is used, once the electric equipment or the users cannot be powered on due to the conditions of disconnection and the like of a mains supply, the power distribution station only supplies power by using a micro-grid power supply system, and the micro-grid power supply system is also translated into a micro-grid power supply system, namely a small-sized power generation and distribution system consisting of a distributed power supply, an energy storage device, an energy conversion device, a load;
the little electric wire netting control box at little electric wire netting power supply system place of general power distribution station can not whole nimble removal, and the inside ventilation of being difficult for the heat dissipation of whole little electric wire netting control box, and the long-time work of inside spare part can not dispel the heat and influence holistic work efficiency, and is not convenient for in time observe the power supply situation to and the voltage change condition.
Disclosure of Invention
The present invention is directed to a micro-grid power supply system of a power distribution station, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a micro-grid power supply system of a power distribution station comprises a micro-grid distribution box, wherein the interior of the micro-grid distribution box is hollow, a top cover is arranged at the top of the micro-grid distribution box, a box door is hinged to the front end face of the micro-grid distribution box, an insulating rubber pad is arranged on the inner side face of the box door, a hook is symmetrically arranged at one end, far away from the hinge, of the box door, a hasp is further arranged at a position, corresponding to the hook, on the side face of the micro-grid distribution box, a wire inlet pipe communicated with the interior is embedded at a position, close to the bottom, of the left end face of the micro-grid distribution box, a ventilation groove communicated with the interior is further formed at a position, close to the top, of the left end face of the micro-grid distribution box, a filter screen plate is arranged in the ventilation groove, a wire outlet, be equipped with the display screen in the mounting groove, little electric wire netting block terminal right-hand member is close to bottom position symmetry and has seted up the circular slot, be equipped with the heat dissipation drum in the circular slot, heat dissipation drum left end is equipped with the protection network, heat dissipation drum right-hand member is equipped with the protection casing, inside motor, support column and the fan of being equipped with from a left side to the right side in proper order of heat dissipation drum, little electric wire netting block terminal is inside still to install controller and energy storage converter, the display screen passes through the wire and is connected with the controller.
Preferably, the bottom of the micro-grid distribution box is close to four corners and is further provided with universal wheels, and the universal wheels are fixedly connected with the micro-grid distribution box through bolts.
Preferably, the top cap is the triangular prism form, the top cap passes through bolt and little electric wire netting block terminal fixed connection.
Preferably, still be equipped with the handle on the terminal surface before the chamber door on keeping away from one side of hinge, the handle is the integrated into one piece structure with the chamber door, couple and chamber door welded fastening, insulating rubber mat bonds fixedly with the chamber door, insulating rubber mat's width and the inside width looks adaptation of little grid distribution box.
Preferably, the hasp passes through bolt and microgrid block terminal fixed connection, the hasp corresponds the joint with the couple and is fixed.
Preferably, still be equipped with the insulation board on the little electric wire netting block terminal inner wall, the insulation board passes through bolt fixed connection with little electric wire netting block terminal, mounting groove, circular slot, ventilation groove all pass the insulation board.
Preferably, the width of the ventilation groove is matched with the wide band of the filter screen plate, and the filter screen plate is fixedly connected with the ventilation groove through a bolt.
Preferably, the width of the mounting groove is matched with the width of the display screen, and the display screen is fixedly connected with the mounting groove through a bolt.
Preferably, the diameter of circular slot and the diameter looks adaptation of heat dissipation drum, heat dissipation drum and circular slot welded fastening, the protection network passes through bolt and heat dissipation drum fixed connection, the protection casing comprises a plurality of equidistant distribution shutter plate, support column and heat dissipation drum welded fastening, the motor passes through bolt and support column fixed connection, the output shaft of motor passes support column and fan coaxial coupling.
Preferably, the inlet wire pipe is fixed with the butt fusion of little electric wire netting block terminal, it is fixed with little electric wire netting block terminal butt fusion to go out the spool, the controller passes through wire electric connection with energy storage converter, controller, energy storage converter all pass through bolt and little electric wire netting block terminal fixed connection.
Compared with the prior art, the invention has the beneficial effects that:
1. the micro-grid distribution box is matched with the universal wheels, a user can move the whole device manually and flexibly, the display screen is arranged in the mounting groove and is connected with the internal controller, the user can know the whole power transmission condition in time through the display screen conveniently, the ventilation groove is matched with the filter screen plate, particles and insects in the outside air can be filtered conveniently, the particles and the insects can be prevented from entering the interior and damaging the interior, the corresponding connecting wires can be connected in and out conveniently due to the matching of the wire inlet pipe and the wire outlet pipe, and the micro-grid distribution box can be used for conveying and supplying power conveniently.
2. The box door is in the matching of the hook and the hasp, a user can manually open or close the box door for use, the insulating rubber pad and the insulating plate are in communication fit, leakage of internal electric power is isolated, electric shock danger is prevented, the heat dissipation cylinder is internally matched with the motor and the fan, internal air can be conveniently dredged, internal heat is dissipated, and long-time working temperature rise is prevented from affecting the integral use.
Drawings
Fig. 1 is a schematic overall structure diagram of a microgrid power supply system of a power distribution station according to the present invention;
fig. 2 is a structural schematic diagram of a micro-grid power supply system box door opening state of the power distribution station of the invention;
FIG. 3 is a schematic diagram of a micro-grid power supply system framework of a power distribution substation according to the present invention;
FIG. 4 is a schematic structural diagram of a heat dissipation cylinder according to the present invention;
fig. 5 is a schematic diagram of a filter screen structure of the present invention.
The various reference numbers in the figures mean:
1. a microgrid distribution box; 10. a universal wheel; 11. mounting grooves; 110. a display screen; 12. a circular groove; 13. a controller; 14. an energy storage converter; 15. an insulating plate; 16. a ventilation slot; 160. a filter screen plate; 17. locking;
2. a top cover;
3. a box door; 30. hooking; 31. a handle; 32. an insulating rubber pad;
4. a wire inlet pipe;
5. a wire outlet pipe;
6. a heat-dissipating cylinder; 60. a protective net; 61. a protective cover; 62. a motor; 63. a support pillar; 64. a fan.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and 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 considered as limiting the present invention.
Referring to fig. 1-5, the present invention provides a technical solution:
a micro-grid power supply system of a power distribution station comprises a micro-grid distribution box 1, wherein the interior of the micro-grid distribution box 1 is hollow, a top cover 2 is arranged at the top of the micro-grid distribution box 1, a box door 3 is hinged to the front end face of the micro-grid distribution box 1, an insulating rubber pad 32 is arranged on the inner side face of the box door 3, a hook 30 is symmetrically arranged at one end, far away from the hinge, of the box door 3, a hasp 17 is further arranged at a position, corresponding to the hook 30, on the side face of the micro-grid distribution box 1, a wire inlet pipe 4 communicated with the interior is embedded at a position, close to the bottom, of the left end face of the micro-grid distribution box 1, a ventilation groove 16 communicated with the interior is further formed at a position, close to the top, of the left end face of the micro-grid distribution box 1, a filter screen plate 160 is arranged in the ventilation groove, be equipped with display screen 110 in the mounting groove 11, little electric wire netting block terminal 1 right-hand member face is close to bottom position symmetry and has seted up circular slot 12, be equipped with heat dissipation drum 6 in the circular slot 12, the 6 left end of heat dissipation drum is equipped with protection network 60, the 6 right-hand member of heat dissipation drum is equipped with protection casing 61, heat dissipation drum 6 is inside to be equipped with motor 62 from a left side to the right side in proper order, support column 63 and fan 64, little electric wire netting block terminal 1 is inside still to be installed controller 13 and energy storage converter 14, display screen 110 passes through the wire and is.
In this embodiment, 1 bottom of little grid distribution box still is equipped with universal wheel 10 near four corners, and universal wheel 10 passes through bolt and 1 fixed connection of little grid distribution box, and universal wheel 10 adds and establishes, and the whole device of convenient to use person's nimble removal can remove the transmission of electricity control that corresponds to the optional place.
Secondly, top cap 2 is the triangular prism form, and top cap 2 passes through bolt and 1 fixed connection of little grid distribution box, and top cap 2 adds and establishes, and the whole device of being convenient for can keep out wind and rain in the open air, prevents that the rainwater from entering into inside.
Further, still be equipped with handle 31 on keeping away from one side of hinge on the terminal surface before chamber door 3, handle 31 and chamber door 3 be the integrated into one piece structure, and couple 30 and 3 welded fastening of chamber door, insulating cushion 32 and 3 bonding of chamber door are fixed, and insulating cushion 32's width and 1 inside width looks adaptations of little grid distribution box, the chamber door 3 is convenient for open in a flexible way, makes things convenient for maintenance personal to adjust the use to inside spare part.
Secondly, the hasp 17 is fixedly connected with the microgrid distribution box 1 through a bolt, the hasp 17 is correspondingly clamped and fixed with the hook 30, and the hasp 17 is matched with the hook 30, so that the box door 3 is stably fixed, and the influence on the integral use caused by accidental opening in use is prevented.
Further, still be equipped with insulation board 15 on 1 inner wall of little grid distribution box, insulation board 15 passes through bolt fixed connection with little grid distribution box 1, and mounting groove 11, circular slot 12, ventilation groove 16 all pass insulation board 15, and insulation board 15 adds to establish and prevents that inside has power conduction to come out, avoids the danger of electrocuteeing.
Secondly, the width of the ventilation groove 16 is matched with the wide band of the filter screen plate 160, the filter screen plate 160 is fixedly connected with the ventilation groove 16 through bolts, and when external air is introduced into the filter screen plate 160, particles and insects are prevented from entering the interior of the filter screen plate to influence the interior of the filter screen plate.
Specifically, the width of mounting groove 11 and the width looks adaptation of display screen 110, display screen 110 pass through bolt and mounting groove 11 fixed connection, and display screen 110 passes through wire electric connection with inside controller 13, and the person of being convenient for visually knows holistic transmission of electricity situation and electric power change situation through display screen 110.
It should be noted that, the diameter of circular slot 12 and the diameter looks adaptation of heat dissipation drum 6, heat dissipation drum 6 and circular slot 12 welded fastening, protection network 60 passes through bolt and heat dissipation drum 6 fixed connection, protection cover 61 is made up by a plurality of equidistant distribution shutter plate, support column 63 and heat dissipation drum 6 welded fastening, motor 62 passes through bolt and support column 63 fixed connection, the output shaft of motor 62 passes support column 63 and fan 64 coaxial coupling, protection network 60 prevents that inside wire from entering heat dissipation drum 6 and causing the influence to fan 64, protection cover 61 avoids external insect and particulate matter to get into, protect the inside, under motor 62 works, dredge the change to inside air, dispel partial heat, prevent that the work of the inside spare part is influenced to the high heat.
Besides, inlet wire pipe 4 is fixed with 1 butt fusion of little electric wire netting block terminal, outlet wire pipe 5 is fixed with 1 butt fusion of little electric wire netting block terminal, controller 13 passes through wire electric connection with energy storage converter 14, controller 13, energy storage converter 14 all passes through bolt and little electric wire netting block terminal 1 fixed connection, inlet wire pipe 4, outlet wire pipe 5 cooperation, be convenient for insert or connect out the wire that corresponds, be convenient for transmit electricity the use, controller 13 cooperates with energy storage converter 14 jointly, the power transmission that the adjustment control of being convenient for does not pass through.
The controller 13 and the energy storage converter 14 are conventional technologies, and are not described herein.
The little electric wire netting power supply system of power distribution station of this embodiment is when using, the manual wire that will insert or connect out of user is respectively from inlet wire pipe 4, outlet wire pipe 5 gets into and the inside inlet wire pipe 4, outlet wire pipe 5 electric connection, display screen 110 passes through the wire and is connected with internal control ware 13, motor 62 switches on external power, motor 62's output shaft rotates and drives fan 64 and rotate, dredge the air of inside and give vent to anger, prevent inside long-time work, inside temperature risees, influence holistic use, the manual chamber door 3 closure of final user, hasp 17 articulates the cooperation with couple 30, be convenient for to whole chamber door 3 quick fixation, prevent that the in use accident from opening, cause the damage to inside, according to the needs of different positions, whole device is nimble to be removed under the effect of universal wheel 10.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides a little electric wire netting power supply system of power distribution station, includes little electric wire netting block terminal (1), its characterized in that: the utility model discloses a micro-grid distribution box, including micro-grid distribution box (1), door (30) and wire inlet pipe (4), micro-grid distribution box (1) is inside to be hollow form, micro-grid distribution box (1) top is equipped with top cap (2), terminal surface articulates has chamber door (3) before micro-grid distribution box (1), be equipped with insulating rubber mat (32) on the side of chamber door (3), keep away from articulated one on chamber door (3) and serve still the symmetry and be equipped with couple (30), the position that corresponds with couple (30) on micro-grid distribution box (1) side still is equipped with hasp (17), micro-grid distribution box (1) left end face is close to the bottom position and inlays wire inlet pipe (4) that are equipped with inside intercommunication, the ventilation groove (16) that communicate with inside are still seted up to micro-grid distribution box (1) left end face near top position, be equipped with filter plate (160) in ventilation groove (16), micro-grid distribution box, little grid distribution box (1) right-hand member face is gone up central point and is put mounting groove (11) have been seted up, be equipped with display screen (110) in mounting groove (11), little grid distribution box (1) right-hand member face is close to bottom position symmetry and has seted up circular slot (12), be equipped with heat dissipation drum (6) in circular slot (12), heat dissipation drum (6) left end is equipped with protection network (60), heat dissipation drum (6) right-hand member is equipped with protection casing (61), heat dissipation drum (6) are inside to be equipped with motor (62), support column (63) and fan (64) from a left side to the right side in proper order, controller (13) and energy storage converter (14) are still installed to little grid distribution box (1) inside, display screen (110) are connected with controller (13) through the wire.
2. The microgrid power supply system of a power distribution station of claim 1, characterized in that: little electric wire netting block terminal (1) bottom is close to four corners and still is equipped with universal wheel (10), universal wheel (10) pass through bolt and little electric wire netting block terminal (1) fixed connection.
3. The microgrid power supply system of a power distribution station of claim 1, characterized in that: the top cap (2) are triangular prism shape, top cap (2) pass through bolt and little electric wire netting block terminal (1) fixed connection.
4. The microgrid power supply system of a power distribution station of claim 1, characterized in that: keep away from on one side of hinge on terminal surface before chamber door (3) still be equipped with handle (31), handle (31) and chamber door (3) are integrated into one piece structure, couple (30) and chamber door (3) welded fastening, insulating cushion (32) are fixed with chamber door (3) bonding, the width of insulating cushion (32) and the inside width looks adaptation of little grid distribution box (1).
5. The microgrid power supply system of a power distribution station of claim 1, characterized in that: hasp (17) pass through bolt and little electric wire netting block terminal (1) fixed connection, hasp (17) correspond the joint with couple (30) and are fixed.
6. The microgrid power supply system of a power distribution station of claim 1, characterized in that: still be equipped with insulation board (15) on little grid distribution box (1) inner wall, insulation board (15) pass through bolt fixed connection with little grid distribution box (1), insulation board (15) are all passed in mounting groove (11), circular slot (12), ventilation groove (16).
7. The microgrid power supply system of a power distribution station of claim 1, characterized in that: the width of the ventilation groove (16) is matched with the wide band of the filter screen plate (160), and the filter screen plate (160) is fixedly connected with the ventilation groove (16) through bolts.
8. The microgrid power supply system of a power distribution station of claim 1, characterized in that: the width of mounting groove (11) and the width looks adaptation of display screen (110), display screen (110) pass through bolt and mounting groove (11) fixed connection.
9. The microgrid power supply system of a power distribution station of claim 1, characterized in that: the diameter of circular slot (12) and the diameter looks adaptation of heat dissipation drum (6), heat dissipation drum (6) and circular slot (12) welded fastening, protection network (60) are through bolt and heat dissipation drum (6) fixed connection, protection casing (61) are made up by a plurality of equidistant distribution shutter plate, support column (63) and heat dissipation drum (6) welded fastening, motor (62) are through bolt and support column (63) fixed connection, the output shaft of motor (62) passes support column (63) and fan (64) coaxial coupling.
10. The microgrid power supply system of a power distribution station of claim 1, characterized in that: inlet wire pipe (4) are fixed with little electric wire netting block terminal (1) butt fusion, it is fixed with little electric wire netting block terminal (1) butt fusion to go out spool (5), controller (13) pass through wire electric connection with energy storage converter (14), controller (13), energy storage converter (14) all through bolt and little electric wire netting block terminal (1) fixed connection.
CN202010852590.6A 2020-08-21 2020-08-21 Little electric wire netting power supply system of power distribution station Pending CN111952866A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010852590.6A CN111952866A (en) 2020-08-21 2020-08-21 Little electric wire netting power supply system of power distribution station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010852590.6A CN111952866A (en) 2020-08-21 2020-08-21 Little electric wire netting power supply system of power distribution station

Publications (1)

Publication Number Publication Date
CN111952866A true CN111952866A (en) 2020-11-17

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104617511A (en) * 2013-11-05 2015-05-13 天津浦安防火科技有限公司 Novel distribution station safety monitoring device
CN207149998U (en) * 2017-09-11 2018-03-27 扬州市揽坤电气有限公司 A kind of isolated form preassembled transformer station
CN207504323U (en) * 2017-10-13 2018-06-15 成夕峰 A kind of intelligent power supply system
CN210092668U (en) * 2019-08-25 2020-02-18 福建京华电气设备有限公司 Synthesize block terminal insulation protector
CN210744591U (en) * 2019-11-25 2020-06-12 湖北汉能既济电力科技发展有限公司 Intelligent box-type substation utilizing circulating ventilation and heat dissipation
CN210952888U (en) * 2020-01-11 2020-07-07 江西华炜电工高科技有限公司 Distribution system health status on-line measuring device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104617511A (en) * 2013-11-05 2015-05-13 天津浦安防火科技有限公司 Novel distribution station safety monitoring device
CN207149998U (en) * 2017-09-11 2018-03-27 扬州市揽坤电气有限公司 A kind of isolated form preassembled transformer station
CN207504323U (en) * 2017-10-13 2018-06-15 成夕峰 A kind of intelligent power supply system
CN210092668U (en) * 2019-08-25 2020-02-18 福建京华电气设备有限公司 Synthesize block terminal insulation protector
CN210744591U (en) * 2019-11-25 2020-06-12 湖北汉能既济电力科技发展有限公司 Intelligent box-type substation utilizing circulating ventilation and heat dissipation
CN210952888U (en) * 2020-01-11 2020-07-07 江西华炜电工高科技有限公司 Distribution system health status on-line measuring device

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Application publication date: 20201117