CN106025894B - A kind of withdraw type metal enclosed switch cabinet - Google Patents

A kind of withdraw type metal enclosed switch cabinet Download PDF

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Publication number
CN106025894B
CN106025894B CN201610481522.7A CN201610481522A CN106025894B CN 106025894 B CN106025894 B CN 106025894B CN 201610481522 A CN201610481522 A CN 201610481522A CN 106025894 B CN106025894 B CN 106025894B
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CN
China
Prior art keywords
door
plate
contact
type metal
metal enclosed
Prior art date
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Active
Application number
CN201610481522.7A
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Chinese (zh)
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CN106025894A (en
Inventor
周力
梁斌
华杰
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.)
Jiangsu Ming And Electric Ltd By Share Ltd
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Jiangsu Ming And Electric Ltd By Share Ltd
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Priority to CN201610481522.7A priority Critical patent/CN106025894B/en
Publication of CN106025894A publication Critical patent/CN106025894A/en
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B11/00Switchgear having carriage withdrawable for isolation
    • H02B11/12Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
    • H02B11/167Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B11/00Switchgear having carriage withdrawable for isolation
    • H02B11/28Earthing arrangements
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing

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

Abstract

The present invention relates to breaker technical field, especially a kind of withdraw type metal enclosed switch cabinet, withdraw type metal enclosed switch cabinet of the present invention is the separate packet type switch cabinet of modules, that is switch gear room and cable vault is separate, certainly control room can also be installed additional according to specific needs, control room also can be independent with each module, need only to dismount corresponding module in maintenance, especially switch gear room part, it is frequently necessary to overhaul, and disassembly efficiency is substantially increased using handcart type breaker, in addition, contact system is that pluggable mode connects, first contact uses and moves left and right pluggable mode, second contact is using lifting pluggable mode, coordinating realizes the modularization independence disassembly and assembly structure of handcart type breaker.

Description

A kind of withdraw type metal enclosed switch cabinet
Technical field
The present invention relates to a kind of withdraw type metal enclosed switch cabinet, belong to breaker technical field.
Background technology
The cabinet type structure that existing solid insulation ring main unit is integrated, needed when needing to overhaul internal working cell Cabinet integral demounting is opened, wasted time and energy, especially when overhauling breaker, it is necessary to cabinet is taken apart, then by breaker Disassemble, assemble and repair all very time-consuming laborious, the workload of attendant is larger, and comparatively laborious.
The content of the invention
The purpose of the present invention is the defects of overcoming prior art to exist, there is provided a kind of withdraw type metal enclosed switch cabinet, just Safeguarded in dismounting.
The technical solution adopted for the present invention to solve the technical problems is:
The withdraw type metal enclosed switch cabinet of the present invention, including cabinet, the cabinet is interior to be provided with switch gear room, the switch gear room Top be provided with upper contact head, the side of the switch gear room is provided with lower contact, handcart-type is removably provided with the switch gear room Breaker, the handcart type breaker include vacuum interrupter and circuit breaker operation mechanism, the vacuum interrupter and breaker Operating mechanism is incorporated on vehicle frame, and the static contact of the vacuum interrupter electrically connect the first contact, the vacuum interrupter Moving contact electrically connect the second contact, and the first contact transverse shifting is established with the lower contact and electrically connected, and described second touches Vertically movable established with the upper contact head electrically connects.
Cable vault is additionally provided with cabinet of the present invention, the cable vault is located at the lower section of the switch gear room, the cable Interior is provided with CA cable assembly, and the CA cable assembly includes lower outlet cable, one end of the lower outlet cable and the lower contact Electrical connection, the other end of the lower outlet cable have cable connector.
The top of cable vault of the present invention is provided with top panel, is slidably fitted with cross slide above the top panel, institute The top for stating cross slide is provided with " C " shape guide rail, and the bottom of the vehicle frame is provided with roller, the roller and " C " the shape guide rail Coordinate, the handcart type breaker loads in the switch gear room and can laterally moved with cross slide along " C " the shape guide rail It is dynamic.
Operating shaft is rotatably mounted with cable vault of the present invention, the both ends of the operating shaft are provided with driving gear, The top panel is provided with the resigning mouthful with the driving gear position correspondence, and the cross slide is provided with and the driving gear The slotted eye that teeth coordinate, the operating shaft pass sequentially through the on driving gear, cross slide and vehicle frame driving vacuum interrupter One contact moves left and right.
The top of switch gear room of the present invention is provided with top plate, and the upper contact head is fixed on the top plate.
Second contact of the present invention is established with the upper contact head under the driving of isolation knife and electrically connected, second contact The top of isolation knife is fixed on, the isolation knife is arranged on sliding beam, and the both ends of the sliding beam are provided with vertical screw rod, described The both ends of sliding beam coordinate with the vertical screw flight, and isolation knife operating mechanism, the isolation are additionally provided with the switch gear room Knife operating mechanism passes sequentially through screw rod, sliding beam, isolation knife and drives second contact vertically movable.
The lower section of isolation knife of the present invention is provided with grounding assembly, and the grounding assembly includes being fixed on isolation knife bottom Cutter head is slided, the fixation cutter head of switch gear room bottom is fixed on and is fixed on the conduction clamping plate of fixing cutter cephalic par, the slip knife In head clamping conduction clamping plate.
Cabinet of the present invention is provided with installing port, and the handcart type breaker is loaded in the switch gear room by installing port, institute To state installing port and door-plate is installed, one end of the door-plate is hinged end, and the hinged end and the lower frame of the installing port are hinged, The other end of the door-plate is free end, and the free end rotates to horizontality during maintenance, and the handcart type breaker is taken out Go out and carried by the door-plate.
The inner face of door-plate of the present invention is provided with roller group, and its bottom is in the roller when extracting the handcart type breaker out Run in group, the door-plate is additionally provided with gas spring, and one end of the gas spring is hinged with the door-plate side, the gas spring Other end is hinged on the side frame of the installing port, and the gas spring, which stretches and pulls residence and state door-plate, during maintenance makes door Plate keep level state.
The two sides of the free end of door-plate of the present invention are provided with door catch, and the door catch is slidably mounted on the door-plate Interior, two side frames of the installing port are provided with the pin-and-hole coordinated with the door catch, and the door-plate is provided with and drives the door lock The linkage of pin, the linkage are driven by rotary handle, and the linkage includes being installed in rotation in door-plate The crank in face, the crank are led to respectively by the rotary handle driving installed in door-plate lateral surface, two power ends of the crank Cross two traces and the door catch of door-plate both sides links.
Withdraw type metal enclosed switch cabinet of the present invention has following effect:
1. withdraw type metal enclosed switch cabinet of the present invention is the separate packet type switch cabinet of modules, that is, switch Room and cable vault are separate, can also install control room additional according to specific needs certainly, and control room also can be independent with each module, is examining Need only to dismount corresponding module, especially switch gear room part when repairing, it is often necessary to overhaul, and use handcart type breaker big Improve disassembly efficiency greatly;
Connected 2. contact system is pluggable mode, the first contact is used using pluggable mode, the second contact is moved left and right Pluggable mode is lifted, coordinates the modularization independence disassembly and assembly structure for realizing handcart type breaker;
3. cabinet is provided with door-plate, door-plate can be used as inspection platform, disassembled without by handcart type breaker, but Directly handcart type breaker is rested on inspection platform and overhauled.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural representation of the withdraw type metal enclosed switch cabinet of the present invention;
Fig. 2 is the handcart type breaker structural representation of the present invention;
Fig. 3 is the cross slide mounting structure schematic diagram of the present invention;
Fig. 4 is the operating shaft mounting structure schematic diagram of the present invention;
Fig. 5 is the isolation knife mounting structure schematic diagram of the present invention;
Fig. 6 is the door panel structure schematic diagram of the present invention.
Wherein:Cabinet 1;Handcart type breaker 2, vehicle frame 21, the first contact 22, the second contact 23, isolation knife 24, sliding beam 25, screw rod 26;Top panel 31, cross slide 32, operating shaft 33, lower contact 34;Top plate 41, upper contact head 42;Cutter head 51 is slided, Gu Stationary knife first 52, conduction clamping plate 53;Door-plate 6, roller group 61, gas spring 62, linkage 63, door catch 64.
Embodiment
In the description of the invention, it is to be understood that term " radial direction ", " axial direction ", " on ", " under ", " top ", " bottom ", The orientation or position relationship of the instructions such as " interior ", " outer " are based on orientation shown in the drawings or position relationship, are for only for ease of and retouch State the present invention and simplify description, rather than indicate or imply that signified device or element there must be specific orientation, with specific Azimuth configuration and operation, therefore be not considered as limiting the invention.In the description of the invention, unless otherwise indicated, " multiple " are meant that two or more.
In the description of the invention, it is necessary to which explanation, unless otherwise clearly defined and limited, term " installation ", " sets Put ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected;Can To be to be joined directly together, can also be indirectly connected by intermediary.For the ordinary skill in the art, can basis Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
As shown in figures 1 to 6, the withdraw type metal enclosed switch cabinet of the present embodiment includes cabinet 1, and switch is provided with cabinet 1 Room, the top of switch gear room are provided with upper contact head 42, and the side of switch gear room is provided with lower contact 34, hand is removably provided with switch gear room Vehicle type breaker 2, handcart type breaker 2 include vacuum interrupter and circuit breaker operation mechanism, vacuum interrupter and breaker behaviour Make organization's integration on vehicle frame 21, the static contact of vacuum interrupter electrically connect the first contact 22, the moving contact of vacuum interrupter The second contact 23 is electrically connect, the transverse shifting of the first contact 22 is established with lower contact 34 and electrically connected, and the second contact 23 is vertically movable Establish and electrically connect with upper contact head 42.Wherein, the arc-extinguishing medium of vacuum interrupter selects vacuum medium, using solid-sealing vacuum arc extinguishing Room, moving contact and static contact are located at composition contact system, static contact in vacuum extinction room and pass through static conductive rod and the first contact 22 Electrical connection, moving contact is electrically connected by moving conductive rod with the second contact 23, when the transverse shifting of the first contact 22 and lower contact 34 are built Vertical electrical connection, the second contact 23 is vertically movable when being electrically connected with the foundation of upper contact head 42, thus forms complete control protection electric circuit.
Cable vault is additionally provided with the cabinet 1 of the withdraw type metal enclosed switch cabinet of the present embodiment, cable vault is located at switch gear room Lower section, CA cable assembly is provided with cable vault, CA cable assembly includes lower outlet cable, one end of lower outlet cable and lower contact 34 Electrical connection, the other end of lower outlet cable have cable connector.
In order to simplify the process of inspection switch cabinet, this implementation provides a kind of separate combined type of modules Switch cabinet, i.e. switch gear room and cable vault are separate, can also install control room additional according to specific needs certainly, and control room also can be with Each module is independent, needs only to dismount corresponding module, especially switch gear room part in maintenance, it is often necessary to overhaul, and adopt Disassembly efficiency is substantially increased with handcart type breaker 2, is also made for the electric connection structure of this contact 23 of the first contact 22 and second It is correspondingly improved, to coordinate the modularization independence disassembly and assembly structure for realizing handcart type breaker 2.
Wherein, the first contact 22 or so removes that electric connection mode is specific as follows, and the top of cable vault is provided with top panel 31, on The top of panel 31 is slidably fitted with cross slide 32, and the top of cross slide 32 is provided with " C " shape guide rail, and the bottom of vehicle frame 21 is provided with Roller, roller and " C " shape guide rail coordinate, and handcart type breaker 2 loads in switch gear room along " C " shape guide rail and can be with horizontal cunning The transverse shifting of plate 32, operating shaft 33 is rotatably mounted with cable vault, the both ends of operating shaft 33 are provided with driving gear, top panel 31 are provided with the resigning mouthful with driving gear position correspondence, and cross slide 32 is provided with the slotted eye coordinated with the teeth of driving gear, behaviour Make the first contact 22 or so that axle 33 is passed sequentially through on driving gear, cross slide 32 and the driving vacuum interrupter of vehicle frame 21 to move It is dynamic, when disassembly is desired, the first contact 22 is driven away from lower contact 34 by operating shaft 33, until the first contact 22 and lower contact 34 disconnect, on the contrary then drive the first contact 22 close to lower contact 34 by operating shaft 33, until the first contact 22 touches with lower First 34 establish electrical connection.
Wherein, the second contact 23 lifting electric connection mode is specific as follows, and the top of switch gear room is provided with top plate 41, upper contact head 42 It is fixed on top plate 41, the second contact 23 is established with upper contact head 42 under the driving of isolation knife 24 and electrically connected, and specifically, second touches First 23 are fixed on the top of isolation knife 24, and isolation knife 24 is arranged on sliding beam 25, and the both ends of sliding beam 25 are provided with vertical screw rod 26, the both ends of sliding beam 25 coordinate with the vertical screw thread of screw rod 26, and isolation knife operating mechanism, isolation knife operation are additionally provided with switch gear room Mechanism passes sequentially through screw rod 26, sliding beam 25, isolation knife 24 and drives the second contact 23 vertically movable.When disassembly is desired, pass through Isolation knife operating mechanism drives the second contact 23 away from upper contact head 42, until the second contact 23 disconnects with upper contact head 42, instead The second contact 23 is then driven close to upper contact head 42 by isolation knife operating mechanism, until the second contact 23 is established with upper contact head 42 Electrical connection.Isolation knife operating mechanism in the present embodiment is fixed on the top of circuit breaker operation mechanism, is moved together with vehicle frame 21.
In order to improve security, the lower section of isolation knife is provided with grounding assembly, and grounding assembly includes being fixed on isolation knife bottom Slip cutter head 51, be fixed on the fixation cutter head 52 of switch gear room bottom and be fixed on the conduction clamping plate 53 of the fixed end of cutter head 52, Slide cutter head 51 to be clamped in conduction clamping plate 53, when 24 up combined floodgate of isolation knife, slide cutter head 51 and depart from conduction clamping plate 53, connect Ground circuit disconnects, and when 24 descending separating brake of isolation knife, slides cutter head 51 and enters in conduction clamping plate 53, earthed circuit is connected.
In order to further improve overhaul efficiency, the present embodiment also provides a kind of inspection platform, without by handcart type breaker 2 Disassemble, but directly handcart type breaker 2 is rested on inspection platform and overhauled, specifically, cabinet 1 is provided with installation Mouthful, handcart type breaker 2, which is loaded or extracted out from switch gear room by installing port, to be overhauled, and installing port is provided with door-plate 6, one end of door-plate 6 For hinged end, the lower frame of hinged end and installing port is hinged, and the other end of door-plate 6 is free end, and free end rotates during maintenance To horizontality, handcart type breaker 2 is extracted out and carried by door-plate 6.The inner face of door-plate 6 is provided with roller group 61, extracts handcart-type out Its bottom is run in roller group 61 during breaker 2, and door-plate 6 is additionally provided with gas spring 62, one end and the side of door-plate 6 of gas spring 62 Be hinged, the other end of gas spring 62 is hinged on the side frame of installing port, and gas spring 62 stretches and pulls door during maintenance Plate 6 makes the keep level state of door-plate 6, and handcart type breaker 2 is rested on door-plate 6 and overhauled.
For the ease of the door-plate 6 that is locked, the two sides of the free end of door-plate 6 are provided with door catch 64, and door catch 64 slides In door-plate 6, two side frames of installing port are provided with the pin-and-hole coordinated with door catch 64, and door-plate 6 is provided with driving door catch 64 linkage 63, linkage 63 are driven by rotary handle, and linkage 63 includes being installed in rotation on the inner face of door-plate 6 Crank, crank passes through two gearings respectively by the rotary handle driving installed in the lateral surface of door-plate 6, two power ends of crank Bar and the door catch 64 of the both sides of door-plate 6 link, and when rotating rotary handle, crank drives door catch 64 to insert by two traces Or away from pin-and-hole.
The internal conductive elements of the withdraw type metal enclosed switch cabinet of the present embodiment are carried out exhausted using solid insulation body Edge processing, the material of solid insulation body include but is not limited to epoxy resin and plastics, hexafluoro are substituted using solid insulation mode Change sulphur gas-insulated, the potential safety hazard that sulfur hexafluoride leakage can be avoided to bring, and also solid insulation is more environmentally-friendly.
It should be appreciated that specific embodiment described above is only used for explaining the present invention, it is not intended to limit the present invention.By Among the obvious changes or variations that the spirit of the present invention is extended out is still in protection scope of the present invention.

Claims (9)

1. a kind of withdraw type metal enclosed switch cabinet, including cabinet (1), the cabinet (1) is interior to be provided with switch gear room and positioned at described Cable vault below switch gear room, the top of the switch gear room are provided with upper contact head (42), and the side of the switch gear room is provided with lower contact (34), it is characterised in that:Handcart type breaker (2), the handcart type breaker (2) are removably installed in the switch gear room Including vacuum interrupter and circuit breaker operation mechanism, the vacuum interrupter and circuit breaker operation mechanism are incorporated into vehicle frame (21) On, the contact system of the vacuum extinction chamber interior respectively connected the first contact (22) and the second contact (23), and described first Contact (22) transverse shifting is established with the lower contact (34) and electrically connected, and second contact (23) is vertically movable and described tactile Head (42) establishes electrical connection;
Operating shaft (33) is rotatably mounted with the cable vault, the both ends of the operating shaft (33) are provided with driving gear, institute The top for stating cable vault is provided with top panel (31), is slidably fitted with cross slide (32) above the top panel (31), it is described on Panel (31) is provided with the resigning mouthful with the driving gear position correspondence, and the cross slide (32) is provided with and the driving gear Teeth coordinate slotted eye, the operating shaft (33) pass sequentially through driving gear, cross slide (32) and vehicle frame (21) driving very The first contact (22) on empty arc-chutes moves left and right.
2. withdraw type metal enclosed switch cabinet according to claim 1, it is characterised in that:Cable is provided with the cable vault Component, the CA cable assembly include lower outlet cable, and one end of the lower outlet cable electrically connects with the lower contact (34), institute The other end for stating lower outlet cable has cable connector.
3. withdraw type metal enclosed switch cabinet according to claim 2, it is characterised in that:The cross slide (32) it is upper Side is provided with " C " shape guide rail, and the bottom of the vehicle frame (21) is provided with roller, and the roller coordinates with " C " the shape guide rail, the hand Vehicle type breaker (2) loads in the switch gear room along " C " the shape guide rail and can be with cross slide (32) transverse shifting.
4. withdraw type metal enclosed switch cabinet according to claim 1, it is characterised in that:The top of the switch gear room is provided with Top plate (41), the upper contact head (42) are fixed on the top plate (41).
5. withdraw type metal enclosed switch cabinet according to claim 4, it is characterised in that:Second contact (23) every Electrically connected from being established under the driving of knife (24) with the upper contact head (42), second contact (23) is fixed on isolation knife (24) Top, the isolation knife (24) are arranged on sliding beam (25), and the both ends of the sliding beam (25) are provided with vertical screw rod (26), institute The both ends and described vertical screw rod (26) screw thread for stating sliding beam (25) coordinate, and isolation knife operation machine is additionally provided with the switch gear room Structure, the isolation knife operating mechanism pass sequentially through screw rod (26), sliding beam (25), isolation knife (24) and drive second contact (23) it is vertically movable.
6. withdraw type metal enclosed switch cabinet according to claim 5, it is characterised in that:The lower section of the isolation knife is provided with Grounding assembly, the grounding assembly include being fixed on the slip cutter head (51) of isolation knife bottom, are fixed on consolidating for switch gear room bottom Stationary knife head (52) and the conduction clamping plate (53) for being fixed on fixed cutter head (52) end, slip cutter head (51) the clamping conduction clamping plate (53) in.
7. withdraw type metal enclosed switch cabinet according to claim 1, it is characterised in that:The cabinet (1) is provided with installation Mouthful, the handcart type breaker (2) is loaded in the switch gear room by installing port, and the installing port is provided with door-plate (6), the door One end of plate (6) is hinged end, and the hinged end and the lower frame of the installing port are hinged, the other end of the door-plate (6) For free end, the free end rotates to horizontality during maintenance, and the handcart type breaker (2) is extracted out and by the door-plate (6) carry.
8. withdraw type metal enclosed switch cabinet according to claim 7, it is characterised in that:The inner face of the door-plate (6) is set There is roller group (61), its bottom is run in the roller group (61) when extracting the handcart type breaker (2) out, the door-plate (6) gas spring (62) is additionally provided with, one end and the door-plate (6) side of the gas spring (62) are hinged, the gas spring (62) Other end be hinged on the side frame of the installing port, the gas spring (62), which stretches and pulls residence, during maintenance states door Plate (6) makes door-plate (6) keep level state.
9. withdraw type metal enclosed switch cabinet according to claim 8, it is characterised in that:The free end of the door-plate (6) Two sides be provided with door catch (64), the door catch (64) is slidably mounted in the door-plate (6), the both sides of the installing port Frame is provided with the pin-and-hole coordinated with the door catch (64), and the door-plate (6) is provided with the connecting rod for driving the door catch (64) Mechanism (63), the linkage (63) are driven by rotary handle, and the linkage (63) includes being installed in rotation on door The crank of plate (6) inner face, the crank are dynamic by the rotary handle driving installed in door-plate (6) lateral surface, two of the crank Linked respectively by two traces and the door catch (64) of door-plate (6) both sides at power end.
CN201610481522.7A 2016-06-27 2016-06-27 A kind of withdraw type metal enclosed switch cabinet Active CN106025894B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610481522.7A CN106025894B (en) 2016-06-27 2016-06-27 A kind of withdraw type metal enclosed switch cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610481522.7A CN106025894B (en) 2016-06-27 2016-06-27 A kind of withdraw type metal enclosed switch cabinet

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CN106025894A CN106025894A (en) 2016-10-12
CN106025894B true CN106025894B (en) 2017-11-21

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107887832B (en) * 2017-03-27 2024-06-18 江苏明及电气股份有限公司 Direct-pushing type metal closed switch cabinet and elastic clamping connector
CN107317254B (en) * 2017-08-24 2023-06-30 协成科技股份有限公司 Longitudinally-moving type circuit breaker handcart
CN108736359A (en) * 2018-06-30 2018-11-02 河南森源电气股份有限公司 Box-type substation
CN112448278A (en) * 2020-11-13 2021-03-05 北京北继德泰电气成套有限公司 Outdoor switch board that uses

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201256261Y (en) * 2008-06-12 2009-06-10 高赟 Side installed withdrawn type high voltage switch cabinet
JP2015100189A (en) * 2013-11-19 2015-05-28 株式会社東芝 Metal enclosed switch gear
CN103683016B (en) * 2013-11-30 2017-01-18 国家电网公司 Modular stacked switch cabinet
CN205029232U (en) * 2015-09-30 2016-02-10 常州阿斯博开关有限公司 Solid insulation handcart -type looped netowrk cabinet
CN206041307U (en) * 2016-06-27 2017-03-22 江苏明及电气股份有限公司 Removing type metal enclosing switch cabinet

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Denomination of invention: Removing type metal enclosed switchgear

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