CN107492804A - A kind of intelligent dust-proof power distribution cabinet being easily installed - Google Patents
A kind of intelligent dust-proof power distribution cabinet being easily installed Download PDFInfo
- Publication number
- CN107492804A CN107492804A CN201710989061.9A CN201710989061A CN107492804A CN 107492804 A CN107492804 A CN 107492804A CN 201710989061 A CN201710989061 A CN 201710989061A CN 107492804 A CN107492804 A CN 107492804A
- Authority
- CN
- China
- Prior art keywords
- power distribution
- distribution cabinet
- main body
- sensor
- cabinet main
- 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.)
- Granted
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Classifications
-
- 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
- H02B1/54—Anti-seismic devices or installations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
Abstract
The invention discloses a kind of intelligent dust-proof power distribution cabinet being easily installed, including power distribution cabinet main body, installation cavity is provided with the power distribution cabinet main body, the opening of installation cavity is provided with two cabinet doors, sealing strip is provided with the inside of cabinet door, two cabinet door one end close to each other are provided with baffle plate, door status sensor is provided with the middle part of baffle plate, display module is provided with above cabinet door, indicator lamp, control button and alarm module, the inner cavity top of installation cavity is provided with photoelectric sensor and controller, the intracavity bottom of installation cavity is provided with temperature sensor, humidity sensor, side of the installation cavity away from cabinet door is provided with filter, side fitting of the filter away from installation cavity is provided with heat dissipation tank, side fitting of the heat dissipation tank away from filter is provided with backboard.The present invention is provided with sealing strip, elastic packing block coordinates with cabinet door, prevents dust from entering the installation cavity of power distribution cabinet main body from the gap of cabinet door by being provided with elastic packing block in power distribution cabinet main body in cabinet door.
Description
Technical field
The present invention relates to power distribution cabinet correlative technology field, more particularly to a kind of intelligent dust-proof power distribution cabinet being easily installed.
Background technology
Electric equipment is always be unable to do without in all trades and professions, and controls the switch assembly of power equipment to be generally located on power distribution cabinet
In, therefore operation of the power distribution cabinet to whole electric equipment is most important.Existing power distribution cabinet is required for manual inspection, inspects periodically
Copy and accept and record each item data, once maintenance is broken down not in time, or because nobody keeps an eye on fail to find in time at any time, meeting
Significant impact is brought for production.Existing power distribution cabinet body is that one block of steel plate is made by folding, and the flange of power distribution cabinet is easily
The damage of product, production success rate are low caused by the carelessness of staff；And obtained power distribution cabinet body volume is larger, make
It is high for whole Transporting cost.Therefore, it is necessary to solve the above problems to invent a kind of intelligent dust-proof power distribution cabinet being easily installed.
The content of the invention
It is an object of the invention to provide a kind of intelligent dust-proof power distribution cabinet being easily installed, to solve in above-mentioned background technology
The problem of proposition.
To achieve the above object, the present invention provides following technical scheme：A kind of intelligent dust-proof power distribution cabinet being easily installed, bag
Power distribution cabinet main body is included, installation cavity is provided with the power distribution cabinet main body, the opening of the installation cavity is provided with two cabinet doors, institute
State and sealing strip is provided with the inside of cabinet door, two cabinet door one end close to each other are provided with baffle plate, and the baffle plate is fixedly mounted on
In power distribution cabinet main body, door status sensor is provided with the middle part of the baffle plate, display module, instruction are provided with above the cabinet door
Lamp, control button and alarm module, the installation cavity inner cavity top of the power distribution cabinet main body are provided with photoelectric sensor and controller,
The installation cavity intracavity bottom of the power distribution cabinet main body is provided with temperature sensor, humidity sensor, the peace of the power distribution cabinet main body
The side for remote cabinet door of behaveing affectedly is provided with filter, and side fitting of the filter away from installation cavity is provided with heat dissipation tank, institute
State side fitting of the heat dissipation tank away from filter and be provided with backboard, slot is equipped with the top corner of the power distribution cabinet main body,
Pull bar is plugged with the slot, the pull bar is connected by the intracavity bottom of buffer spring and slot, the power distribution cabinet main body
Top middle portion be provided with fixed plate, the fixed plate is fixedly mounted in power distribution cabinet main body by confining screw, the fixation
The top middle portion of plate is provided with support bar, and movable loop bar, the top insertion activity of support bar are provided with the top of the support bar
In the chute of loop bar bottom, the side wall of the movable loop bar is connected by spring stack with fixed plate, the pull bar and movable loop bar
Top be equipped with draw ring, connected between two draw rings by steel wire rope.
Preferably, center line symmetrical setting of two cabinet doors on power distribution cabinet main body in the power distribution cabinet main body, two
One end that cabinet door is located remotely from each other is connected by bearing pin with power distribution cabinet main body, and the power distribution cabinet main body is set close to one end of cabinet door
It is fluted, elastic packing block, the intracavity bottom that the elastic packing block passes through spring connecting groove are provided with the groove.
Preferably, radiator fan is installed with the heat dissipation tank, the side wall of the heat dissipation tank by jointing plate and is consolidated
Bolt is determined in power distribution cabinet main body.
Preferably, the side of the backboard is provided with electrostatic dust prevention plate, and multiple plates are provided with the backboard, described to insert
Through hole is provided with plate, the through hole is arranged to corrugated core, and static electricity shield layer is provided with the outside of through hole.
Preferably, current sensor, voltage sensor, central processing unit, electric brake control mould are provided with the controller
Block and radio receiving transmitting module.
Preferably, the door status sensor, photoelectric sensor, temperature sensor, humidity sensor, current sensor and electricity
The output end of pressure sensor is central processing unit, and the output end of the central processing unit is display module, alarm module and electricity
Lock control module, the connection end of the central processing unit is radio receiving transmitting module, and the connection end of the radio receiving transmitting module is control
Terminal processed.
Preferably, the door status sensor, photoelectric sensor, temperature sensor, humidity sensor, current sensor and electricity
Pressure sensor is electrically connected with central processing unit, and display module, alarm module, electric brake is electrically connected in the central processing unit
Control module and radio receiving transmitting module, the radio receiving transmitting module are connected with control terminal signaling.
The technique effect and advantage of the present invention：The present invention in power distribution cabinet main body by being provided with elastic packing block, in cabinet
Sealing strip is provided with door, elastic packing block coordinates with cabinet door, prevents dust from the gap of cabinet door into power distribution cabinet main body
Installation cavity；Plate and electrostatic dust prevention plate are provided with backboard, corrugated through hole, the outside of corrugated through hole are provided with plate
Static electricity shield layer is provided with, corrugated through hole adds air and enters the length that power distribution cabinet main body installation cavity passes through, electrostatic precipitation
Plate and static electricity shield layer, which coordinate, to adsorb the dust entered in corrugated through hole and chip so that dust and chip will not enter
In power distribution cabinet main body, good dust-proof effect is reached；Controller and a series of biographies are provided with power distribution cabinet main body simultaneously
Sensor so that staff can monitor the inner case of power distribution cabinet main body in real time, improve the intellectuality of power distribution cabinet main body；
Pull bar and movable loop bar are provided with power distribution cabinet main body, pull bar is connected with movable loop bar by steel wire rope, sets pull bar and activity
Loop bar causes power distribution cabinet main body to be easy to lifting to move, the shell without damaging scuffing power distribution cabinet main body, the buffer spring on pull bar
Cooperated with the spring stack on movable loop bar, certain cushioning effect is provided for power distribution cabinet main body, improves power distribution cabinet master
The security of body transport.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is elastic packing block structure diagrammatic cross-section of the present invention.
Fig. 3 is that structure side of the present invention regards diagrammatic cross-section.
Fig. 4 is heat-dissipation box structure schematic diagram of the present invention.
Fig. 5 is back board structure diagrammatic cross-section of the present invention.
Fig. 6 is back board structure schematic side view of the present invention.
Fig. 7 is structure schematic top plan view of the present invention.
Fig. 8 is the movable loop bar structural profile illustration of the present invention.
Fig. 9 is controller architecture connection diagram of the present invention.
In figure：It is power distribution cabinet main body 1, cabinet door 2, groove 3, elastic packing block 4, sealing strip 5, baffle plate 6, door status sensor 7, aobvious
Show module 8, indicator lamp 9, control button 10, alarm module 11, photoelectric sensor 12, controller 13, temperature sensor 14, humidity
Sensor 15, filter 16, heat dissipation tank 17, radiator fan 18, backboard 19, electrostatic dust prevention plate 20, plate 21, through hole 22, electrostatic
Overcoat 23, slot 24, pull bar 25, fixed plate 26, support bar 27, movable loop bar 28, spring stack 29, steel wire rope 30, electric current pass
Sensor 31, voltage sensor 32, central processing unit 33, electric brake control module 34, radio receiving transmitting module 35, control terminal 36.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The invention provides a kind of intelligent dust-proof power distribution cabinet being easily installed as shown in figs 1-9, including power distribution cabinet main body
1, installation cavity is provided with the power distribution cabinet main body 1, and the opening of the installation cavity is provided with two cabinet doors 2, the cabinet door 2
Inner side is provided with sealing strip 5, and two one end close to each other of cabinet door 2 are provided with baffle plate 6, and the baffle plate 6 is fixedly mounted on distribution
In cabinet main body 1, the middle part of the baffle plate 6 is provided with door status sensor 7, and the top of the cabinet door 2 is provided with display module 8, referred to
Show lamp 9, control button 10 and alarm module 11, the installation cavity inner cavity top of the power distribution cabinet main body 1 is provided with photoelectric sensor
12 and controller 13, the installation cavity intracavity bottom of the power distribution cabinet main body 1 be provided with temperature sensor 14, humidity sensor 15,
The side of the installation cavity of power distribution cabinet main body 1 away from cabinet door 2 is provided with filter 16, and the filter 16 is away from installation cavity
Side fitting is provided with heat dissipation tank 17, and side fitting of the heat dissipation tank 17 away from filter 16 is provided with backboard 19, described to match somebody with somebody
Slot 24 is equipped with the top corner of electric cabinet main body 1, pull bar 25 is plugged with the slot 24, the pull bar 25 passes through buffering
Spring is connected with the intracavity bottom of slot 24, and the top middle portion of the power distribution cabinet main body 1 is provided with fixed plate 26, the fixed plate
26 are fixedly mounted in power distribution cabinet main body 1 by confining screw, and the top middle portion of the fixed plate 26 is provided with support bar 27, institute
The top for stating support bar 27 is provided with movable loop bar 28, in the chute of the bottom of top insertion activity loop bar 28 of support bar 27, institute
The side wall for stating movable loop bar 28 is connected by spring stack 29 with fixed plate 26, and the top of the pull bar 25 and movable loop bar 28 is all provided with
There is draw ring, connected between two draw rings by steel wire rope 30.
Center line symmetrical setting of two cabinet doors 2 on power distribution cabinet main body 1 in the power distribution cabinet main body 1, two cabinet doors 2
The one end being located remotely from each other is connected by bearing pin with power distribution cabinet main body 1, and the power distribution cabinet main body 1 is set close to one end of cabinet door 2
Fluted 3, elastic packing block 4, the interior bottom of chamber that the elastic packing block 4 passes through spring connecting groove 3 are provided with the groove 3
Portion；Radiator fan 18 is installed with the heat dissipation tank 17, the side wall of the heat dissipation tank 17 passes through jointing plate and fixing bolt
In power distribution cabinet main body 1；The side of the backboard 19 is provided with electrostatic dust prevention plate 20, is provided with the backboard 19 multiple
Plate 21, through hole 22 is provided with the plate 21, the through hole 22 is arranged to corrugated core, and the outside of through hole 22 is set
There is static electricity shield layer 23；Current sensor 31, voltage sensor 32, central processing unit 33, electricity are provided with the controller 13
Lock control module 34 and radio receiving transmitting module 35；The door status sensor 7, photoelectric sensor 12, temperature sensor 14, humidity pass
The output end of sensor 15, current sensor 31 and voltage sensor 32 is central processing unit 33, the central processing unit 33
Output end is display module 8, alarm module 11 and electric brake control module 34, and the connection end of the central processing unit 33 is received to be wireless
Module 35 is sent out, the connection end of the radio receiving transmitting module 35 is control terminal 36；The door status sensor 7, photoelectric sensor 12,
Temperature sensor 14, humidity sensor 15, current sensor 31 and voltage sensor 32 are electrically connected with central processing unit 33, institute
State central processing unit 33 and display module 8, alarm module 11, electric brake control module 34 and radio receiving transmitting module is electrically connected
35, the radio receiving transmitting module 35 is connected with the control signal of terminal 36.
Elastic packing block 4 is provided with power distribution cabinet main body 1, is provided with sealing strip 5 in cabinet door 2, elastic packing block 4 with
Cabinet door 2 coordinates, and prevents dust from entering the installation cavity of power distribution cabinet main body 1 from the gap of cabinet door 2；Plate is provided with backboard 19
21 and electrostatic dust prevention plate 20, corrugated through hole 22 is provided with plate 21, and the outside of corrugated through hole 22 is provided with electrostatic protection
Layer 23, corrugated through hole 22 add air and enter the length that the installation cavity of power distribution cabinet main body 1 passes through, electrostatic precipitation plate 20 and electrostatic
Overcoat 23, which coordinates, to adsorb the dust entered in corrugated through hole 22 and chip so that dust and chip will not enter distribution
In cabinet main body 1, good dust-proof effect is reached；Controller 13 and a series of biographies are provided with power distribution cabinet main body 1 simultaneously
Sensor so that staff can monitor the inner case of power distribution cabinet main body 1 in real time, improve the intellectuality of power distribution cabinet main body 1；
Pull bar 25 and movable loop bar 28 are provided with power distribution cabinet main body 1, pull bar 25 and movable loop bar 28 are connected by steel wire rope 30, if
Pull bar 25 and movable loop bar 28 are put so that power distribution cabinet main body 1 is easy to lifting to move, without damaging the outer of scuffing power distribution cabinet main body 1
Shell, the spring stack 29 on buffer spring and movable loop bar 28 on pull bar 25 cooperate, provided necessarily for power distribution cabinet main body 1
Cushioning effect, improve power distribution cabinet main body 1 transport security.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic,
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., it should be included in the present invention's
Within protection domain.
Claims (7)
1. a kind of intelligent dust-proof power distribution cabinet being easily installed, including power distribution cabinet main body (1), it is characterised in that：The power distribution cabinet master
Installation cavity is provided with body (1), the opening of the installation cavity is provided with two cabinet doors (2), and the inner side of the cabinet door (2) is set
There is sealing strip (5), two cabinet door (2) one end close to each other are provided with baffle plate (6), and the baffle plate (6) is fixedly mounted on distribution
In cabinet main body (1), door status sensor (7) is provided with the middle part of the baffle plate (6), display is provided with above the cabinet door (2)
Module (8), indicator lamp (9), control button (10) and alarm module (11), the installation cavity inner chamber top of the power distribution cabinet main body (1)
Portion is provided with photoelectric sensor (12) and controller (13), and the installation cavity intracavity bottom of the power distribution cabinet main body (1) is provided with temperature
Sensor (14), humidity sensor (15) are spent, the side of the installation cavity of power distribution cabinet main body (1) away from cabinet door (2) is provided with
Filter (16), side fitting of the filter (16) away from installation cavity are provided with heat dissipation tank (17), the heat dissipation tank (17)
Side fitting away from filter (16) is provided with backboard (19), is equipped with the top corner of the power distribution cabinet main body (1) slotting
Groove (24), the slot (24) is interior to be plugged with pull bar (25), and the pull bar (25) passes through the inner chamber of buffer spring and slot (24)
Bottom connects, and the top middle portion of the power distribution cabinet main body (1) is provided with fixed plate (26), and the fixed plate (26) is by confining spiral shell
Silk is fixedly mounted in power distribution cabinet main body (1), and the top middle portion of the fixed plate (26) is provided with support bar (27), the support
It is provided with movable loop bar (28) at the top of bar (27), in the chute of top insertion activity loop bar (28) bottom of support bar (27),
The side wall of the movable loop bar (28) is connected by spring stack (29) with fixed plate (26), the pull bar (25) and movable loop bar
(28) draw ring is equipped with the top of, is connected between two draw rings by steel wire rope (30).
A kind of 2. intelligent dust-proof power distribution cabinet being easily installed according to claim 1, it is characterised in that：The power distribution cabinet master
Center line symmetrical setting of two cabinet doors (2) on power distribution cabinet main body (1) on body (1), two cabinet doors (2) be located remotely from each other one
End is connected by bearing pin with power distribution cabinet main body (1), and the power distribution cabinet main body (1) sets fluted close to one end of cabinet door (2)
(3) elastic packing block (4), is provided with the groove (3), the elastic packing block (4) passes through the interior of spring connecting groove (3)
Bottom of chamber portion.
A kind of 3. intelligent dust-proof power distribution cabinet being easily installed according to claim 1, it is characterised in that：The heat dissipation tank
(17) radiator fan (18) is installed with, the side wall of the heat dissipation tank (17) is arranged on by jointing plate and fixing bolt matches somebody with somebody
On electric cabinet main body (1).
A kind of 4. intelligent dust-proof power distribution cabinet being easily installed according to claim 1, it is characterised in that：The backboard (19)
Side be provided with electrostatic dust prevention plate (20), multiple plates (21) are provided with the backboard (19), are set in the plate (21)
Through hole (22) is equipped with, the through hole (22) is arranged to corrugated core, and is provided with static electricity shield layer on the outside of through hole (22)
(23)。
A kind of 5. intelligent dust-proof power distribution cabinet being easily installed according to claim 1, it is characterised in that：The controller
(13) current sensor (31), voltage sensor (32), central processing unit (33), electric brake control module (34) and nothing are provided with
Line transceiver module (35).
A kind of 6. intelligent dust-proof power distribution cabinet being easily installed according to claim 1, it is characterised in that：The door sensor sensing
Device (7), photoelectric sensor (12), temperature sensor (14), humidity sensor (15), current sensor (31) and voltage sensor
(32) output end is central processing unit (33), and the output end of the central processing unit (33) is display module (8), alarm mould
Block (11) and electric brake control module (34), the connection end of the central processing unit (33) are radio receiving transmitting module (35), the nothing
The connection end of line transceiver module (35) is control terminal (36).
A kind of 7. intelligent dust-proof power distribution cabinet being easily installed according to claim 1, it is characterised in that：The door sensor sensing
Device (7), photoelectric sensor (12), temperature sensor (14), humidity sensor (15), current sensor (31) and voltage sensor
(32) central processing unit (33) is electrically connected with, display module (8), alarm mould is electrically connected in the central processing unit (33)
Block (11), electric brake control module (34) and radio receiving transmitting module (35), the radio receiving transmitting module (35) and control terminal (36)
Signal connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710989061.9A CN107492804B (en) | 2017-10-22 | 2017-10-22 | A kind of intelligent dust-proof power distribution cabinet being easily installed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710989061.9A CN107492804B (en) | 2017-10-22 | 2017-10-22 | A kind of intelligent dust-proof power distribution cabinet being easily installed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107492804A true CN107492804A (en) | 2017-12-19 |
| CN107492804B CN107492804B (en) | 2019-08-23 |
Family
ID=60653516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710989061.9A Active CN107492804B (en) | 2017-10-22 | 2017-10-22 | A kind of intelligent dust-proof power distribution cabinet being easily installed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107492804B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108176612A (en) * | 2017-12-28 | 2018-06-19 | 安徽宏实光机电高科有限公司 | Color selector security protection system |
| CN108188048A (en) * | 2017-12-28 | 2018-06-22 | 安徽宏实光机电高科有限公司 | Color selector safe operation system |
| CN111473804A (en) * | 2020-03-09 | 2020-07-31 | 杭州市地铁集团有限责任公司运营分公司 | Five-prevention lock for preventing maintainers from mistakenly entering electrified interval |
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| JP2003129767A (en) * | 2001-10-26 | 2003-05-08 | Matsushita Electric Works Ltd | Water sealing device for door |
| CN102794232A (en) * | 2011-05-25 | 2012-11-28 | 吴福吉 | Labyrinth type dust collection box |
| CN204490312U (en) * | 2015-03-05 | 2015-07-22 | 聊城鑫大变压器有限公司 | The upending frame that a kind of suspension switch cabinet moves |
| CN205265050U (en) * | 2016-01-07 | 2016-05-25 | 安徽索仕达电力科技有限公司 | High pressure, low pressure prepackage type transformer substation |
| CN106785975A (en) * | 2016-12-29 | 2017-05-31 | 日照晟明电气有限公司 | A kind of intelligent dust-proof power distribution cabinet being easily installed |
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2017
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003129767A (en) * | 2001-10-26 | 2003-05-08 | Matsushita Electric Works Ltd | Water sealing device for door |
| CN102794232A (en) * | 2011-05-25 | 2012-11-28 | 吴福吉 | Labyrinth type dust collection box |
| CN204490312U (en) * | 2015-03-05 | 2015-07-22 | 聊城鑫大变压器有限公司 | The upending frame that a kind of suspension switch cabinet moves |
| CN205265050U (en) * | 2016-01-07 | 2016-05-25 | 安徽索仕达电力科技有限公司 | High pressure, low pressure prepackage type transformer substation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108176612A (en) * | 2017-12-28 | 2018-06-19 | 安徽宏实光机电高科有限公司 | Color selector security protection system |
| CN108188048A (en) * | 2017-12-28 | 2018-06-22 | 安徽宏实光机电高科有限公司 | Color selector safe operation system |
| CN111473804A (en) * | 2020-03-09 | 2020-07-31 | 杭州市地铁集团有限责任公司运营分公司 | Five-prevention lock for preventing maintainers from mistakenly entering electrified interval |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107492804B (en) | 2019-08-23 |
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