CN106786110A - A kind of fixed type metal enclosing switch device - Google Patents
A kind of fixed type metal enclosing switch device Download PDFInfo
- Publication number
- CN106786110A CN106786110A CN201611243951.7A CN201611243951A CN106786110A CN 106786110 A CN106786110 A CN 106786110A CN 201611243951 A CN201611243951 A CN 201611243951A CN 106786110 A CN106786110 A CN 106786110A
- Authority
- CN
- China
- Prior art keywords
- cabinet
- type metal
- fixed type
- switch device
- metal enclosing
- 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
Links
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
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
-
- 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
- H02B1/306—Accessories, e.g. windows
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
Abstract
The present invention discloses a kind of fixed type metal enclosing switch device, the monitoring problem for solving internal humiture.The fixed type metal enclosing switch device includes cabinet, also include vacuum circuit breaker room, the vacuum circuit breaker room is arranged at the cabinet top, and the cabinet is welded by angle steel skeleton and steel plate, the cabinet top is provided with least one transparent window, and the cabinet top is provided with humiture device.Fixed type metal enclosing switch device cabinet low manufacture cost of the invention, internal humiture can realize monitoring, be that plant maintenance is provided a great convenience.
Description
Technical field
The present invention relates to converting equipment field, and in particular to a kind of fixed type metal enclosing switch device.
Background technology
The Main Function of switch cubicle is to be generated electricity in power system, transmitted electricity, during distribution and electric energy change, carried out
Folding, control and protection electrical equipment.Part in switch cubicle mainly has breaker, disconnecting switch, on-load switch, operation machine
Structure, transformer and various protection devices etc. are constituted.The sorting technique of switch cubicle is a lot, such as can be with by breaker mounting means
It is divided into withdraw-type switch cabinet and fixed switching cabinet；Or according to the difference of cabinet body structure, open type switch cubicle, metal envelope can be divided into
Close switch cubicle and metal enclosed armoured switch cabinet；High-tension switch cabinet, Medium Voltage Switchgear can be divided into according to voltage class difference again
With low-tension switch cabinet etc..Be primarily adapted for use in power plant, transformer station, petrochemical industry, metallurgical steel rolling, industry light industry textile industry, industrial enterprise and
The various different occasions such as residential quarters, skyscraper.
It is that technical staff needs weight that exclusion is detected and carried out to the use state of fixed type metal enclosing switch device
Depending on work.
The content of the invention
In view of this, in order to solve the warm and humid of electric elements in fixed type metal enclosing switch device cabinet in the prior art
Spend the monitoring of environment and improve its ventilation and heat condition, the present invention provides a kind of fixed type metal enclosing switch device.
It is below present disclosure.
A kind of fixed type metal enclosing switch device, including cabinet, also including vacuum circuit breaker room, the vacuum circuit breaker room sets
The cabinet top is placed in, the cabinet is welded by angle steel skeleton and steel plate, it is saturating that the cabinet top is provided with least one
Bright window, the cabinet top is provided with humiture device.Wherein, transparent window is used for the situation of electric elements in visual cabinet body,
Can carry out simple failure judgement and humiture device can be in display case body humiture, be easy to attendant to get information about
The use environment of electric elements, the generation prevented accident, while the cabinet is welded using angle steel firmware and steel plate, is manufactured into
This is low.
Further, the transparent window lower section is provided with air vent.The air vent is used to improve the right of cabinet inner air and outer air
Stream, the air vent could be arranged to variously-shaped.Possible caused failure in cabinet can be entered into view of foreign matter simultaneously, should
The size of air vent is unsuitable excessive, can typically make cellular aperture.
Further, the leading-out terminal of the cabinet is provided with earthed switch.
Further, the steel plate of the cabinet is galvanized sheet.Galvanized sheet has etch-proof effect, improves steel plate
Service life.
Further, the steel plate uses electrostatic dusting hot setting.The technique can strengthen the corrosion resistance of the steel plate
Can, so as to improve the service life of cabinet, accomplish preferably to protect the effect of electric elements therein.
Further, the cabinet top is provided with suspension ring.Suspension ring user can hanging by crane gear when carrying
Hook is attached, and multiple suspension ring can be set, and each suspension ring one end is connected with cabinet, and the other end is provided with annulus, the company with cabinet
Connecing can be threaded connection, or the mode such as welding machine is realized is fixedly connected.
Further, the side wall of the cabinet is provided with air grid.The air grid is that multiple pod apertures arrangements are formed
Aeration structure, for improving the gaseous environment in cabinet, meanwhile, also with preventing rainwater, Hui Cheng from falling into cabinet from top to down
Inside, Open Side Down should to pass through grid.
Further, the top of the cabinet is provided with first through hole, and the door of the cabinet is provided with the second through hole, and one is U-shaped
Pipe one end connects the first through hole, and the other end connects second through hole.Display unit and controlling switch in cabinet door can lead to
Cross U-tube to be connected with the electric elements in cabinet, this connection is realized by connection cable, like this, this electricity
Cable will not can just be clipped to when the door of cabinet is closed by cabinet door.
Further, described U-tube one end is hinged with the first through hole, and the other end is hinged with second through hole.
When the cabinet door of cabinet is opened, U-tube is also what is rotated.
Further, the bottom of cabinet bulk is provided with damping device.The damping device improves the anti-seismic performance of overall cabinet.
Compared with prior art, the beneficial effects of the present invention are：Transparent window is used for electric elements in visual cabinet body
Situation, can carry out simple failure judgement and humiture device can be in display case body humiture, be easy to attendant directly perceived
Understanding electric elements use environment, the generation prevented accident, while the cabinet is welded using angle steel firmware and steel plate,
Low cost of manufacture.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below by to be used needed for implementation method
Accompanying drawing is briefly described, it will be appreciated that the following drawings illustrate only some implementation methods of the invention or embodiment, therefore not
The restriction to scope is should be considered as, for those of ordinary skill in the art, on the premise of not paying creative work,
Other related accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 shows the dimensional structure diagram of fixed type metal enclosing switch device of the present invention.
What Fig. 2 showed fixed type metal enclosing switch device of the present invention faces the first structural representation.
Fig. 3 shows the side structure schematic view of fixed type metal enclosing switch device of the present invention.
What Fig. 4 showed fixed type metal enclosing switch device of the present invention faces second structural representation.
Main element symbol description：
100- fixed type metal enclosing switch devices；
101- cabinets；102- vacuum circuit breakers room；103- observation windows；104- humiture devices；106- suspension ring；107-U type pipes；
108- damping devices.
Specific embodiment
For the ease of understanding the present invention, fixed type metal enclosing switch device is carried out below with reference to relevant drawings more complete
The description in face.Accompanying drawing gives the embodiment of fixed type metal enclosing switch device, but, fixed type metal enclosing switch device
Can realize in different forms, however it is not limited to embodiment described herein.On the contrary, providing the purpose of these embodiments
It is to make the disclosure to fixed type metal enclosing switch device more thorough comprehensive.
In the description of the invention, it is to be understood that term " on ", D score, " left side " " right side ", "front", "rear", " perpendicular
Directly ", the orientation or position relationship of the instruction such as " level ", " top ", " bottom ", " interior ", " outward " are based on orientation shown in the drawings or position
Relation is put, the description present invention is for only for ease of and is simplified description, it is necessary rather than the device or element for indicating or imply meaning
With specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or feature that the embodiment or example are described
It is contained at least one embodiment of the invention or example.In this manual, the schematic representation to above-mentioned term differs
Surely identical embodiment or example are referred to.And, the specific features of description, structure, material or feature can be any
Combined in an appropriate manner in one or more embodiments or example.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In the description of the invention, " multiple " is meant that two or more,
Unless otherwise expressly limited specifically.
In the description of the invention, unless otherwise prescribed with limit, it is necessary to explanation, term " installation ", " connected ",
" connection ", " connection ", " connection " should be interpreted broadly, for example, it may be mechanical attachment or electrical connection, or two elements
Internal connection, can be joined directly together, it is also possible to be indirectly connected to by intermediary, for one of ordinary skill in the art
For, can as the case may be understand the concrete meaning of above-mentioned term.
As shown in Figures 1 to 3, fixed type metal enclosing switch device of the present invention 100, including cabinet 101, vacuum circuit breaker room
102, the vacuum circuit breaker room 102 is arranged at the top of the cabinet 101, and the cabinet 101 is by angle steel skeleton and steel plate welding
Into the top of the cabinet 101 is provided with least one transparent window, and the top of the cabinet 101 is provided with humiture device 104.It is transparent
Window is used to estimate the situation of electric elements in cabinet 101, can carry out the judgement of simple failure and humiture device 104 can show
Show the humiture in cabinet 101, be easy to attendant to get information about the use environment of electric elements, the generation prevented accident,
The cabinet 101 is welded using angle steel firmware and steel plate simultaneously, low cost of manufacture.
Cabinet 101 in the present invention is the housing for housing each electric elements, and the cabinet 101 is provided with cabinet door, in cabinet 101
With steel plate partition into vacuum short circuit room, bus-bar room, cable vault and relay bungalow, and transparent window can be used to observe wherein electrical equipment unit
The situation of part, wherein, solid is welded by angle steel skeleton and steel plate.On the top of cabinet 101, vacuum circuit breaker room 102 is set,
Vacuum short circuit interior is provided with vacuum circuit breaker, and " vacuum circuit breaker " is situated between because of the insulation of contact gap after its arc-extinguishing medium and arc extinguishing
Matter is all high vacuum and gains the name；It has the advantages that small volume, it is lightweight, suitable for frequent operation, arc extinguishing without maintenance.Vacuum
Breaker mainly includes three parts：Vacuum interrupter, electromagnetism or spring operating mechanism, support and miscellaneous part.
Above-mentioned transparent window is provided in the observation window 103 on the top of cabinet 101, for observing its interior electrical equipment for attendant
The ruuning situation of element, the transparent window is provided with transparent glass panel, and the glass panel can be safety glass, tempering glass
Glass has security, high intensity and good heat endurance, wherein, security is shown when glass is destroyed by external force, fragment
Understand into and be similar to the cellular broken little particle in obtuse angle, be difficult to cause serious injury human body.High intensity shows condition of equivalent thickness
Safety glass impact strength is 3~5 times of simple glass, and bending strength is 3~5 times of simple glass.And heat endurance table
The temperature difference that can be born now is 3 times of simple glass, can bear 300 DEG C of difference variation.
Humiture device 104 in the present invention is a kind of device for measuring humiture in cabinet 101, the humiture device
104 is the display unit electric connection in a kind of device with Temperature Humidity Sensor, its cabinet door with cabinet 101, wherein, temperature
Temperature Quantity and humidity amount can be converted into humidity sensor the device of the electric signal of easy measured treatment.The humiture
The application of device 104, can intuitively connecting circuit element local environment humiture.Due to fixed type metal enclosing switch device
100 pairs of restricted conditions of use environment, if it exceeds the environmental conditions parameter for limiting, equipment may just occur potential safety hazard,
And for temperature, humidity, different times real-time change has differences, therefore, the humiture in monitoring cabinet 101 can be pre- in real time
The generation of anti-equipment safety accident.It should be noted that the temperature of Temperature Humidity Sensor shows can be arranged on the cabinet door of cabinet 101
Display unit on, so, attendant when equipment spot checking, by estimating data therein, it is possible to be connected to
Equipment service condition.
Embodiment 1
In the present embodiment, detailed illustration will be carried out to air vent, air grid.
The cabinet 101 of fixed type metal enclosing switch device of the invention 100 is provided with air vent, specifically, air vent
It is arranged on the side wall of cabinet 101, air vent is used to improve the exchange of the air-flow in cabinet 101.The air vent could be arranged to appoint
The shape of meaning.It should be noted that in order to effectively prevent foreign matter (such as dust, small insect) from entering into cabinet 101, this leads to
Air holes could be arranged to cellular aperture.In addition, in order to improve the air ambient in cabinet 101 as soon as possible, the ventilation
Hole could be arranged to large-sized air vent, such as could be arranged to the circular port of diameter 200mm, and lid is additionally provided with air vent
Son, for covering in air vent, when needing rapidly to improve the air ambient in cabinet 101, can be by exhausting
Machine is connected with the air vent, and the air ambient in cabinet 101 is rapidly improved using air exhauster.
It should be noted that fixed type metal enclosing switch device of the invention 100 can also set air grid, this leads to
Multiple pod apertures are constituted style grid again, and the Natural Circulation for air in cabinet 101 is used.The air grid is made up of pod apertures,
Wherein, Open Side Down for pod apertures, can prevent foreign matter from it is upper and on drop into cabinet 101.
Embodiment 2
In the present embodiment, detailed illustration will be carried out to earthed switch, the material of cabinet 101 and suspension ring 106.
The position of earthed switch is set has important influence for the cabinet 101, for the machine of circuit ground part
Tool formula is switched, and it can within a certain period of time carry the electric current (such as short circuit current) under non-normal condition, but not require that it is carried
Electric current under the conditions of normal circuit.Earthed switch is arranged on the leading-out terminal of cabinet 101 in the present invention, make use of going out for leading-out terminal
Mouthful.
Cabinet 101 in the present invention is formed using angle steel skeleton and firm plate weld, wherein, steel plate could be arranged to zinc-plated
Plate, galvanized sheet refers to that surface is coated with one layer of steel plate of zinc, the corrosion-resistant effect that galvanized sheet can be played, and galvanized sheet is by production and adds
Work method can be divided into following a few classes：1. hot-dip galvanized steel sheet.In the zinc groove that sheet metal immersion is melted, make one layer of its surface adhesion
The sheet metal of zinc.It is main at present to use continuous zinc coating technique productions, i.e., coiled steel plate is continuously immersed in the coating bath for melting and having zinc
In be made galvanized steel plain sheet；2. alloy galvanized steel plate.This steel plate is also to be manufactured with hot dipping, but after groove is gone out, immediately it
500 DEG C or so are heated to, make the alloy firm of its generation zinc and iron.This galvanized sheet has adherence and the weldering of good coating
Connecing property；3. plated steel sheet.This galvanized steel plain sheet is manufactured with galvanoplastic has good processability.It is corrosion-resistant but coating is relatively thin
Property be not so good as hot dipping galvanized sheet；4. one side is plated and two-sided poor galvanized steel plain sheet.One-side galvanized steel plate, i.e., only in the product that one side is zinc-plated
Product.At aspects such as welding, application, antirust treatment, processing, with adaptability more more preferable than double side zinc coating plate.To overcome one side not
The shortcoming of zinc coating, there is a kind of galvanized sheet that thin layer zinc is coated with another face again, i.e., two-sided poor galvanized sheet；5. alloy, compound galvanized steel
Plate.It is to be made alloy or even the compound steel plate being plated to zinc and other metals such as aluminium, lead, zinc etc..This steel plate both has Zhuo
Rustless property more, there is good coating performance again.
Steel plate in the present invention can also use electrostatic spraying hot setting in addition to using galvanized sheet, use electrostatic powder
The surface of powder paint to workpiece, under electrostatic interaction, powder can be adsorbed uniformly spraying equipment (static plastic spraying machine)
In workpiece surface, the coating of powdery is formed；Powdery coating solidifies by high-temperature baking levelling, becomes the different (powdery paints of effect
Variety classes effect) final coating；Spraying effect is at the aspect such as mechanical strength, adhesive force, corrosion-resistant, ageing-resistant better than spray
Lacquer craftwork.Compared with traditional lacquer spraying technique, the significant advantage having is not required to solvent or diluent, Construction on Environment to electrostatic plastics-spraying technology
It is pollution-free, it is harmless to the human body；Appearance of coat good quality, adhesive force and mechanical strength are strong；Spraying application hardening time is short；Apply
Layer anticorrosive anti-wear ability is higher by a lot；It is not required to priming paint；Easy construction is low to workman's technical requirements；Cost is less than lacquer spraying technique；Have
A little construction sites clearly propose to be processed using electrostatic plastics-spraying technology；It is not in spray painting in electrostatic dusting spraying process
Trickling phenomenon common in technique.
In the present invention, in order that obtain the fixed type metal enclosing switch device 100 carrying be more can and crane gear
Suspension hook connection on, suspension ring 106 can be set on cabinet 101, suspension ring 106 are a kind of bolts, and it is another that its one end is provided with screw rod
End is provided with annulus, wherein, screw rod is used to be connected with cabinet 101, and annulus is used for the end for lifting, for being hung with crane gear
Hook connects.It should be noted that the suspension ring can be a kind of damping suspension ring, the damping suspension ring include suspension ring body, rings seat and
Suspension ring egative film, suspension ring body is inserted on rings seat, suspension ring egative film be arranged on rings seat inside and suspension ring egative film by bolt and
Pressing plate is connected to the lower end of suspension ring body, and multiple disc springs of positive desuperposition are provided between rings seat and suspension ring egative film.
Embodiment 3
In the present embodiment, detailed illustration will be carried out to U-tube 107, damping device 108.
As shown in figure 4, the setting of U-tube 107 occurs to prevent the cable in the cabinet door of cabinet 101 from being clamped by cabinet door
Potential safety hazard.The U-tube 107 with can be rotated relative to first through hole and the second through hole, the U-tube 107 can be flexible material, cabinet
Electric elements on door, such as display unit, shift knob wiring can be with the terminals in cabinet 101 by the U-tube 107
Connection, cabinet door would not clip to wiring when closing.The one end of above-mentioned U-tube 107 is hinged with the first through hole, the other end with
Second through hole is hinged.It is a kind of socket between the U-tube 107 and first through hole in a kind of specific embodiment, this
Plant and be socketed not a kind of tight fit, but a kind of cooperation of pine.In another specific embodiment, the two ends of U-tube 107
Can be respectively provided with two bearings, and the inner ring size of bearing and first through hole, the sizableness of the second through hole, so, U-tube
It is a kind of tight fit between 107 one end and one of bearing, bearing is arranged on the housing of cabinet 101 or cabinet 101
Door on, can thus realize U-tube 107 relative to first through hole, the rotation of the second through hole.
Fixed type metal enclosing switch device of the invention 100 can be set damping device 108 in the bottom of cabinet 101, should
Damping device 108 includes housing and mobile movable up and down, and the bottom of mobile is provided with multiple springs, wherein, cabinet
Body 101 is placed in mobile, and this damping device 108 improves the anti-seismic performance of the modular sulfur hexafluoride looped network box.
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited thereto, and it is any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (10)
1. a kind of fixed type metal enclosing switch device, including cabinet, it is characterised in that：Also include vacuum circuit breaker room, it is described true
Empty interruption chambe is arranged at the cabinet top, and the cabinet is welded by angle steel skeleton and steel plate, and the cabinet top is provided with
At least one observation window, the cabinet top is provided with humiture device.
2. fixed type metal enclosing switch device as claimed in claim 1, it is characterised in that：The transparent window lower section is provided with
Air vent.
3. fixed type metal enclosing switch device as claimed in claim 1, it is characterised in that：The leading-out terminal of the cabinet is provided with
Earthed switch.
4. fixed type metal enclosing switch device as claimed in claim 1, it is characterised in that：The steel plate of the cabinet is
Galvanized sheet.
5. fixed type metal enclosing switch device as claimed in claim 1, it is characterised in that：The steel plate uses electrostatic spraying
Powder hot setting.
6. fixed type metal enclosing switch device as claimed in claim 1, it is characterised in that：The cabinet top is provided with hangs
Ring.
7. fixed type metal enclosing switch device as claimed in claim 1, it is characterised in that：The side wall of the cabinet is provided with
Air grid.
8. fixed type metal enclosing switch device as claimed in claim 1, it is characterised in that：The top of the cabinet is provided with
One through hole, the door of the cabinet is provided with the second through hole, and a U-tube one end connects the first through hole, and other end connection is described
Second through hole.
9. fixed type metal enclosing switch device as claimed in claim 8, it is characterised in that：Described U-tube one end with it is described
First through hole is hinged, and the other end is hinged with second through hole.
10. fixed type metal enclosing switch device as claimed in claim 1, it is characterised in that：The bottom of cabinet bulk is provided with and subtracts
Shake device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611243951.7A CN106786110A (en) | 2016-12-29 | 2016-12-29 | A kind of fixed type metal enclosing switch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611243951.7A CN106786110A (en) | 2016-12-29 | 2016-12-29 | A kind of fixed type metal enclosing switch device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106786110A true CN106786110A (en) | 2017-05-31 |
Family
ID=58928533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611243951.7A Pending CN106786110A (en) | 2016-12-29 | 2016-12-29 | A kind of fixed type metal enclosing switch device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106786110A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080076197A (en) * | 2007-02-15 | 2008-08-20 | (합)동양아이텍 | Outdoor telegraph pole affix elder brother lac mount |
| CN103795000A (en) * | 2014-01-13 | 2014-05-14 | 江苏现代电力科技股份有限公司 | Intelligent high voltage alternating-current metal enclosed switchgear and control device |
| CN203826837U (en) * | 2014-04-18 | 2014-09-10 | 四川秦巴电气有限责任公司 | Fixed type metal-enclosed switchgear |
| CN204156346U (en) * | 2014-10-15 | 2015-02-11 | 江苏华通电气科技有限公司 | Box type fixed metal closed switch device |
| CN105703257A (en) * | 2016-04-18 | 2016-06-22 | 广东求精电气有限公司 | Solid insulation ring main unit |
-
2016
- 2016-12-29 CN CN201611243951.7A patent/CN106786110A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080076197A (en) * | 2007-02-15 | 2008-08-20 | (합)동양아이텍 | Outdoor telegraph pole affix elder brother lac mount |
| CN103795000A (en) * | 2014-01-13 | 2014-05-14 | 江苏现代电力科技股份有限公司 | Intelligent high voltage alternating-current metal enclosed switchgear and control device |
| CN203826837U (en) * | 2014-04-18 | 2014-09-10 | 四川秦巴电气有限责任公司 | Fixed type metal-enclosed switchgear |
| CN204156346U (en) * | 2014-10-15 | 2015-02-11 | 江苏华通电气科技有限公司 | Box type fixed metal closed switch device |
| CN105703257A (en) * | 2016-04-18 | 2016-06-22 | 广东求精电气有限公司 | Solid insulation ring main unit |
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Application publication date: 20170531 |