CN109449813A - A kind of highland and severe cold type solid-state insulated switchgear - Google Patents
A kind of highland and severe cold type solid-state insulated switchgear Download PDFInfo
- Publication number
- CN109449813A CN109449813A CN201811617075.9A CN201811617075A CN109449813A CN 109449813 A CN109449813 A CN 109449813A CN 201811617075 A CN201811617075 A CN 201811617075A CN 109449813 A CN109449813 A CN 109449813A
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- Prior art keywords
- shell
- highland
- moving contact
- type solid
- severe cold
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/01—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with resin casing
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The present invention provides a kind of highland and severe cold type solid-state insulated switchgears, it is characterized in that, including framework (1), basement (2), breaker chamber (3), it insulate chamber (4), control room (5), the insulation chamber (4) includes three insulated cases (41), the insulated case (41) is by vacuum interrupter (42), disconnecting switch, earthing switch, main bus-bar, branch bar and solid insulation filler are constituted, the solid insulation filler includes epoxy resin, ethylene propylene diene rubber, the mixture of heat-conducting silicone grease, its component ratio by weight is 10:2:0.5.The application is packaged into insulated case with epoxy resin, ethylene propylene diene rubber, heat-conducting silicone grease filling again by first assembling the conduct pieces such as vacuum interrupter (42), disconnecting switch, earthing switch, main bus-bar, branch bar, insulated case outer surface is coated with two layers of epoxy coating and a level paint again, the influence to avoid frigid plateau region adverse circumstances to switch cabinet equipment.
Description
Technical field
The present invention relates to solid-state insulated switchgear technical field more particularly to a kind of highland and severe cold type solid insulation switch
Equipment.
Background technique
In frigid plateau region, 1000 meters of height above sea level, between 5000m, are often increased 100 meters, air pressure about reduces 0.8-1kPa；
Air pressure reduction is easy to make air ionization and reduce dielectric strength, while cooling performance declines, and leads to switch arc extinguishing difficulty and electrical
Temperature increases.Although height above sea level increases, air themperature can also decline, and temperature is too low, and certain materials in switchgear can be made to become
Cirrhosis is crisp, so that the viscosity of some oils is increased or is solidified, influences the normal work of switchgear.Day and night excessive temperature differentials is easy to produce
Raw condensation makes components deformation, cracking, magnetic part fragmentation, accelerated ageing under conditions of oxygen and dust.And traditional handcart-type etc.
Switchgear is not able to satisfy production requirement already, so the switch cabinet equipment of frigid plateau region needs some special designs
Meet to insulation performance, high temperature resistant, low temperature resistant, arc extinction performance requirement.
Summary of the invention
To overcome heat-resisting frigid plateau region switchgear existing in the prior art, cold-resistant, poor heat radiation, generating electric arc
The problems such as, the present invention provides a kind of highland and severe cold type solid-state insulated switchgears.
A kind of highland and severe cold type solid-state insulated switchgear, which is characterized in that including framework, basement, breaker chamber, absolutely
Edge chamber, control room, the insulation chamber include three insulated cases, and the insulated case is by vacuum interrupter, disconnecting switch, ground connection
Switch, main bus-bar, branch bar and solid insulation filler are constituted.
In a preferred embodiment, the solid insulation filler be epoxy resin, it is ethylene propylene diene rubber, thermally conductive
The mixture of silicone grease, component ratio by weight are 10:2:0.5.
In a preferred embodiment, the vacuum interrupter includes being made of insulating material and the length of inner vacuum
Tube-like envelope, the shell are axially once equipped with end of incoming cables along it, static contact, moving contact, watchband-shaped contactor, are grounded moving contact, exhausted
Edge pull rod, bellows and universal driving shaft.
In a preferred embodiment, the end of incoming cables is solidificated in one end end and end of incoming cables and the static contact of shell
It is fixedly connected, the moving contact is connected by watchband-shaped contactor with ground connection moving contact, is equipped with and is solidificated in the periphery of watchband-shaped contactor
On shell and tubular leading-out terminal, the side of the leading-out terminal extends shell and is connected with the external circuitry of shell exterior,
The ground connection moving contact periphery is equipped with solidification on the shell and tubular grounding static contact, the ground connection moving contact pass through
Insulated pull rod is connected with bellows, and the bellows is connected with universal driving shaft and universal driving shaft is pierced by the end of the shell other end.
In a preferred embodiment, the grounding static contact inside upper part is equipped with and ground connection moving contact lower part phase
The annular notches of adaptation, and when ground connection moving contact is moved at grounding static contact axially downwards, ground connection moving contact insertion annular
In notch；Locking plate on the bellows top and circumferentially fixed wall inside the shell is connected, and lower part is fixed on shell
On bottom, the bellows has elasticity；When the moving contact and static contact contact, the moving contact and leading-out terminal
The distance of upper surface is more than or equal to ground connection moving contact to the distance of annular notches；The lower end of the universal driving shaft is equipped with positioning spiral shell
Hole.
In a preferred embodiment, the vacuum interrupter case surface vulcanization has one layer of silicon rubber.
In a preferred embodiment, two layers of epoxy coating and a level paint are coated in the insulated case.
In a preferred embodiment, the ingredient of the epoxy coating is 100 parts of epoxy resin, polytetrafluoroethyl-ne
36-50 parts of alkene, 16-20 parts of polyvinyl butyral, 12-16 parts of nano zircite, 16-24 parts of asbestos, 20-30 parts of curing agent,
10-20 parts of dispersing agent, 20-40 parts of solvent.
In a preferred embodiment, the curing agent is fluorine-containing epoxy hardener, and the dispersing agent is unsaturation
The mixed solution and calcium carbonate of polyamine and acidic polyester salt, the solvent are diacetone alcohol and ethylene glycol ethyl ether by volume 1:
1 mixing.
In a preferred embodiment, the finishing coat become polytetrafluoroethylene (PTFE), noninflammability film forming matter, chlorination
Sodium, ammonium phosphate, ammonium borate and silica flour.
In a preferred embodiment, voltage current transformer is additionally provided in the basement.
Compared with prior art, the beneficial effects of the present invention are:
(1) the application passes through the conduct pieces such as vacuum interrupter, disconnecting switch, earthing switch, main bus-bar, branch bar are first
Assembly is packaged into insulated case with epoxy resin and silicone filler again, avoids high pressure extremely frigid zones because of rarefaction of air and the larger temperature difference
The bad problem of caused electric arc, insulating properties；
(2) the application is by the way that the mixture of epoxy resin, ethylene propylene diene rubber, heat-conducting silicone grease to be filled in insulated case,
Due to the preferable high temperature resistant of ethylene propylene diene rubber, electrical insulation capability and elastic well, the brilliant cold-and-heat resistent of heat-conducting silicone grease
Alternation performance, ageing-resistant performance and electrical insulation capability can solve frigid plateau region rarefaction of air bring poor heat radiation
Problem.
(3) arc quenching chamber structure of the application is simple and convenient, and entire arc-chutes can be realized really and be gone out all in vacuum state
The function of arc, security performance are more preferable；
(4) the application is by being coated with two layers of epoxy coating in insulated case outer surface, addition polyvinyl alcohol contracting in coating
Butyraldehyde ingredient can effectively improve cold-resistant, the corrosion resistant ability of switchgear, avoid frigid plateau region adverse circumstances pair
The influence of switch cabinet equipment；
(5) the application is by being coated with polytetrafluoroethylene (PTFE) finishing coat in insulated case outer surface, since polytetrafluoroethylene (PTFE) has well
Chemical stability, corrosion resistance, leakproofness, electrical insulating property and good ageing resistance, can be effectively reduced insulated case and exist
The probability being corroded in adverse circumstances enables the paint of insulated case surface of shell to be used the longer time；
(6) the application in top coat layer by adding noninflammability film forming matter, sodium chloride, ammonium phosphate, ammonium borate and stone
Ying Fen can effectively improve the heat resistance of insulated case.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of one preferred embodiment of highland and severe cold type solid-state insulated switchgear of the present invention；
Fig. 2 is the knot of vacuum interrupter in a kind of one preferred embodiment of highland and severe cold type solid-state insulated switchgear of the present invention
Structure schematic diagram；
In figure: 1- framework；2- basement；3- breaker chamber；4- insulation chamber；The control room 5-；41- insulated case；42- vacuum
Arc-chutes；421- shell；The end of incoming cables 422-；423- static contact；424- moving contact；425- watchband-shaped contactor；426- is grounded moving contact；
427- insulated pull rod；428- bellows；429- universal driving shaft；4210 leading-out terminals；4211- grounding static contact；4212- shielding case；
4213- annular notches；4214- locking plate；4215- positioning screw hole.
Specific embodiment
Below in conjunction with drawings and examples, the present invention will be described in further detail.It should be appreciated that described herein
Specific examples are only used to explain the present invention, is not intended to limit the present invention.
Fig. 1 is please referred to, is that a kind of structure of one preferred embodiment of highland and severe cold type solid-state insulated switchgear of the present invention is shown
It is intended to, a kind of highland and severe cold type solid-state insulated switchgear, including framework 1, basement 2, breaker chamber 3, insulation chamber 4, instrument
Table room 5, wherein insulation chamber 4 includes three insulated cases 41, each insulated case 41 is by vacuum interrupter 42, disconnecting switch, ground connection
Switch, main bus-bar, branch bar and solid insulation filler are constituted.The application assembles vacuum interrupter 42 and its conduct piece
Insulated case 41 is packaged into using the filling of solid insulation filler afterwards, the thin oxygen in frigid plateau region is avoided and the very big temperature difference is made
At radiating efficiency it is low, easily cause the bad phenomenons such as electric arc, improve the insulation performance and anti-adverse environment of switchgear
Energy.
In a preferred embodiment, solid insulation filler is epoxy resin, ethylene propylene diene rubber, heat-conducting silicone grease
Mixture, component ratio by weight be 10:2:0.5, ethylene propylene diene rubber have preferable high temperature resistant, electrical insulation capability and
Elasticity well, and heat-conducting silicone grease has brilliant cold-and-heat resistent alternation performance, ageing-resistant performance and electrical insulation capability, can solve
Frigid plateau region rarefaction of air bring radiates bad problem.
In a preferred embodiment, the vacuum interrupter 42 includes being made of insulating material and inner vacuum
Shell 421, the shell 421 are in elongated tubular, and the shell 421 is successively arranged end of incoming cables 422, static contact 423, dynamic touching along its axial direction
First 424, watchband-shaped contactor 425, ground connection moving contact 426, insulated pull rod 427, bellows 428 and universal driving shaft 429.
In a preferred embodiment, the end of incoming cables 422 is solidificated in one end end and the end of incoming cables of shell 421
422 are fixedly connected with static contact 423, and the periphery of static contact 423 and moving contact 424, which is equipped with, to be cylindrical in shape and be fixed in shell 421
Shielding case 4212.Shielding case 4212 plays the role of arc extinguishing.
In a preferred embodiment, the moving contact 424 passes through watchband-shaped contactor 425 and ground connection moving contact 426
It is connected, watchband-shaped contactor 425 has the state switching performance of good energization and power-off.
In a preferred embodiment, it is equipped in the periphery of watchband-shaped contactor 425 and is solidificated on shell 421 and is cylindrical in shape
Leading-out terminal 4210, the side of leading-out terminal 4210 extends shell 421 and is connected with the external circuitry outside shell 421.
In a preferred embodiment, 426 periphery of ground connection moving contact, which is equipped with, is solidificated on shell 421 and is in
The grounding static contact 4211 of tubular, the side of grounding static contact 4211 are extended shell 421 and are grounded.
In a preferred embodiment, the ground connection moving contact 426 passes through insulated pull rod 427 and bellows 428
It is connected, insulated pull rod 427 is formed using solid insulating material casting and surface is wavy.
In a preferred embodiment, the bellows 428 is connected with universal driving shaft 429 and universal driving shaft 429 is pierced by
The end of 421 other end of shell.
In a preferred embodiment, the lower end of the universal driving shaft 429 is equipped with positioning screw hole 4215.
In a preferred embodiment, 428 top of bellows and circumferentially fixed on 421 inner wall of shell
Locking plate 4214 is connected, and lower part is fixed on the bottom of shell 421, and the bellows 428 has elasticity；When described moves
When contact 424 and static contact 423 contact, which is in "on" position；And universal driving shaft 429 is pulled to drive moving contact 424 de-
From static contact 423, then arc-chutes are in gate-dividing state；Universal driving shaft 429 is pulled to be grounded moving contact 426 and grounding static contact
When 4211 contact, arc-chutes are in ground state.
In a preferred embodiment, 4211 inside upper part of grounding static contact is equipped with and ground connection moving contact
The adaptable annular notches 4213 in 426 lower parts, and when ground connection moving contact 426 is moved to axially downwards at grounding static contact 4211
When, ground connection moving contact 426 is embedded in annular notches 4213.
In a preferred embodiment, the moving contact 424 at a distance from 4210 upper surface of leading-out terminal be greater than etc.
The distance of annular notches 4213 is arrived in ground connection moving contact 426.
In a preferred embodiment, 42 shell of vacuum interrupter, 421 surface sulfide has one layer of silicon rubber, with
Increase the insulation performance of switchgear.
In a preferred embodiment, two layers of epoxy coating and a level paint, institute are coated in the insulated case
State epoxy coating ingredient be 100 parts of epoxy resin, 36-50 parts of polytetrafluoroethylene (PTFE), 16-20 parts of polyvinyl butyral,
12-16 parts of nano zircite, 16-24 parts of asbestos, 20-30 parts of curing agent, 10-20 parts of dispersing agent, 20-40 parts of solvent.
Further, epoxy resin has good physical and chemical performance, it can be in the table of metal and nonmetallic materials
There is extraordinary adhesion strength in face, and dielectric properties are good, and deformation retract rate is small, and product size is stablized, and hardness is high, and flexibility compared with
It is good, therefore add epoxy resin in coating and enable to the connection of coating and insulated case more close.
Further, polytetrafluoroethylene (PTFE) have good chemical stability, corrosion resistance, leakproofness, electrical insulating property and
Good ageing resistance can be effectively reduced the probability that insulated case is corroded in highland and severe cold environment, so that insulated case surface
Coating can be used the longer time.
Further, polyvinyl butyral is added in the coating, can effectively be promoted coating anti-corrosion and waterproof,
Cold-proof effect.
Further, it by the addition of a small amount of nano zircite, can be bonded with epoxy resin, it is homogeneous compound to form one
Network-type nano paint effectively prevent the infiltration of corrosive medium, so that insulated case is had superior corrosion resistance and wearability, also increases
The bond strength for having added epoxy coating Yu insulated case surface, insulated case caused by avoiding epoxy coating cracking from becoming fragile are leaked
Electricity, generation electric arc etc..
Further, asbestos can preferably promote the heat-insulating, fire-preventing effect of insulated case, while also can reduce insulated case
The noise generated when work.
In the present embodiment, the curing agent is fluorine-containing epoxy hardener.
In the present embodiment, the dispersing agent is the mixed solution and calcium carbonate of unsaturated polyamine and acidic polyester salt.
It is molten that the mixed solution and calcium carbonate of unsaturated polyamine and acidic polyester salt can be such that epoxy resin, curing agent stable and uniform is scattered in
In agent.
In the present embodiment, the solvent is that 1:1 is mixed diacetone alcohol by volume with ethylene glycol ethyl ether.It is molten using this
Agent can reduce the viscosity of epoxy coating, and effectively avoid the generation of spraying interfacial bubbles, keep epoxy coating equal
It is even to be sprayed at insulated case surface；And under this solvent condition, nano zircite can effectively disperse, and avoid nano zircite
Reunite.
In a preferred embodiment, the finishing coat become polytetrafluoroethylene (PTFE), noninflammability film forming matter, chlorination
Sodium, ammonium phosphate, ammonium borate and silica flour.
Further, in teflon coating add noninflammability film forming matter, sodium chloride, ammonium phosphate, ammonium borate with
And silica flour, it can effectively improve the performance of fireproofing and heat resistant.
In the present embodiment, first layer epoxy coating thickness >=200 μm, second layer epoxy coating thickness >=
150 μm, the thickness of finishing coat is more than or equal to 180 μm.
In a preferred embodiment, voltage current transformer 21 is additionally provided in the basement 2.
The preferred embodiment of the present invention has shown and described in above description, as previously described, it should be understood that the present invention is not office
Be limited to form disclosed herein, should not be regarded as an exclusion of other examples, and can be used for various other combinations, modification and
Environment, and can be changed within that scope of the inventive concept describe herein by the above teachings or related fields of technology or knowledge
It is dynamic.And changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, then it all should be appended by the present invention
In scope of protection of the claims.
Claims (10)
1. a kind of highland and severe cold type solid-state insulated switchgear, which is characterized in that including framework (1), basement (2), breaker
Room (3), insulation chamber (4), control room (5), the insulation chamber (4) include three insulated cases (41), the insulated case (41)
It is made of vacuum interrupter (42), disconnecting switch, earthing switch, main bus-bar, branch bar and solid insulation filler.
2. a kind of highland and severe cold type solid-state insulated switchgear according to claim 1, it is characterised in that: the solid is exhausted
Edge filler is the mixture of epoxy resin, ethylene propylene diene rubber, heat-conducting silicone grease, and component ratio by weight is 10:2:0.5.
3. a kind of highland and severe cold type solid-state insulated switchgear according to claim 1, it is characterised in that: the vacuum is gone out
Arc chamber (42) includes being made of insulating material and the elongated tubular shell (421) of inner vacuum, the shell (421) along its axial one
It is secondary to be equipped with end of incoming cables (422), static contact (423), moving contact (424), watchband-shaped contactor (425), ground connection moving contact (426), insulation
Pull rod (427), bellows (428) and universal driving shaft (429).
4. a kind of highland and severe cold type solid-state insulated switchgear according to claim 3, it is characterised in that: the end of incoming cables
(422) it is solidificated in one end end of shell (421) and end of incoming cables (422) is fixedly connected with static contact (423), the moving contact
(424) it is connected by watchband-shaped contactor (425) with ground connection moving contact (426), outside the periphery of watchband-shaped contactor (425) is equipped with and is solidificated in
Shell (421) and and shell are extended on shell (421) and tubular leading-out terminal (4210), the side of the leading-out terminal (4210)
(421) external external circuitry is connected, and ground connection moving contact (426) periphery, which is equipped with, to be solidificated on shell (421) and in cylinder
The grounding static contact (4211) of shape, the ground connection moving contact (426) are connected by insulated pull rod (427) with bellows (428),
The bellows (428) is connected with universal driving shaft (429) and universal driving shaft (429) is pierced by the end of shell (421) other end.
5. a kind of highland and severe cold type solid-state insulated switchgear according to claim 3, it is characterised in that: the ground connection
Static contact (4211) inside upper part is equipped with the annular notches (4213) adaptable with ground connection moving contact (426) lower part, and when ground connection
When moving contact (426) is moved to axially downwards at grounding static contact (4211), ground connection moving contact (426) is embedded in annular notches
(4213) in；Bellows (428) top and the circumferentially fixed locking plate (4214) on shell (421) inner wall are connected,
And lower part is fixed on the bottom of shell (421), the bellows (428) has elasticity；When the moving contact (424) with
When static contact (423) contacts, the moving contact (424) is more than or equal to the dynamic touching of ground connection at a distance from leading-out terminal (4210) upper surface
Head (426) arrives the distance of annular notches (4213)；The lower end of the universal driving shaft (429) is equipped with positioning screw hole (4215).
6. a kind of highland and severe cold type solid-state insulated switchgear according to claim 1, it is characterised in that: the vacuum is gone out
Arc chamber (42) shell (421) surface sulfide has one layer of silicon rubber.
7. a kind of highland and severe cold type solid-state insulated switchgear according to claim 1, it is characterised in that: the insulated case
On be coated with two layers of epoxy coating and a level paint, the ingredient of the epoxy coating is 100 parts of epoxy resin, polytetrafluoro
36-50 parts of ethylene, 16-20 parts of polyvinyl butyral, 12-16 parts of nano zircite, 16-24 parts of asbestos, curing agent 20-30
Part, 10-20 parts of dispersing agent, 20-40 parts of solvent.
8. a kind of highland and severe cold type solid-state insulated switchgear according to claim 7, it is characterised in that: the curing agent
For fluorine-containing epoxy hardener, the dispersing agent is the mixed solution and calcium carbonate of unsaturated polyamine and acidic polyester salt, described
Solvent is that 1:1 is mixed diacetone alcohol by volume with ethylene glycol ethyl ether.
9. a kind of highland and severe cold type solid-state insulated switchgear according to claim 7, it is characterised in that: the finishing coat
As polytetrafluoroethylene (PTFE), noninflammability film forming matter, sodium chloride, ammonium phosphate, ammonium borate and silica flour.
10. a kind of highland and severe cold type solid-state insulated switchgear according to claim 1, it is characterised in that: the inlet wire
Voltage current transformer (21) are additionally provided in room (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811617075.9A CN109449813A (en) | 2018-12-28 | 2018-12-28 | A kind of highland and severe cold type solid-state insulated switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811617075.9A CN109449813A (en) | 2018-12-28 | 2018-12-28 | A kind of highland and severe cold type solid-state insulated switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109449813A true CN109449813A (en) | 2019-03-08 |
Family
ID=65538421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811617075.9A Pending CN109449813A (en) | 2018-12-28 | 2018-12-28 | A kind of highland and severe cold type solid-state insulated switchgear |
Country Status (1)
| Country | Link |
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| CN (1) | CN109449813A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111064107A (en) * | 2019-12-18 | 2020-04-24 | 芜湖伊莱特电气有限公司 | Solid insulation type vacuum ring main unit outdoor shell |
| CN111490487A (en) * | 2020-03-23 | 2020-08-04 | 南通鑫源电器制造有限公司 | Arc extinguishing switch cabinet |
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| CN104201595A (en) * | 2014-09-24 | 2014-12-10 | 吉林省金冠电气股份有限公司 | Main insulator used for solid insulating switch equipment |
| CN105304400A (en) * | 2015-11-02 | 2016-02-03 | 宁波耐吉新星自动化设备有限公司 | Novel vacuum arc-extinguishing chamber for solid insulated ring main unit |
| CN107068377A (en) * | 2017-05-12 | 2017-08-18 | 江苏恒炫电气有限公司 | A kind of transformer application process |
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| US8848344B2 (en) * | 2011-08-16 | 2014-09-30 | Lsis Co., Ltd. | Solid insulated switchgear |
| CN103354190A (en) * | 2013-06-26 | 2013-10-16 | 国家电网公司 | Isolation grounding switch device and solid insulating switch using same |
| CN103346504A (en) * | 2013-07-17 | 2013-10-09 | 宁波天安（集团）股份有限公司 | Three-position solid insulation switchgear |
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| CN111064107A (en) * | 2019-12-18 | 2020-04-24 | 芜湖伊莱特电气有限公司 | Solid insulation type vacuum ring main unit outdoor shell |
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| CN111490487A (en) * | 2020-03-23 | 2020-08-04 | 南通鑫源电器制造有限公司 | Arc extinguishing switch cabinet |
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Application publication date: 20190308 |