CN205542212U - Exempt from insulating sleeve pipe of capacitanc of packing - Google Patents
Exempt from insulating sleeve pipe of capacitanc of packing Download PDFInfo
- Publication number
- CN205542212U CN205542212U CN201620076817.1U CN201620076817U CN205542212U CN 205542212 U CN205542212 U CN 205542212U CN 201620076817 U CN201620076817 U CN 201620076817U CN 205542212 U CN205542212 U CN 205542212U
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- China
- Prior art keywords
- condenser type
- type insulation
- core body
- insulation core
- sleeve pipe
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Abstract
The utility model provides an exempt from insulating sleeve pipe of capacitanc of packing, includes the capacitanc insulation core body, capacitanc insulation core body overcoat has the insulator, forms the clearance of exempting from the packing between insulator and capacitanc insulation core body, be equipped with the electric capacity screen that a plurality of and insulating layer set up in turn in the capacitanc insulation core body, wherein the electric capacity screen in the outside for earthy ground connection end screen. Need not to fill insulating material in the clearance between hollow insulator and capacitor core, also need not the evacuation, remain ordinary ordinary pressure air, simple structure, with low costs and assembly maintenance convenience.
Description
Technical field
The utility model relates to high voltage electric equipment field, relates to the sleeve pipe of a kind of condenser type insulation exempted from and fill.
Background technology
It is known that in power system, in order to ensure the reliable insulation between high-tension line and earth potential,
Some high voltage electric equipments need to be used, such as electrical equipment sleeve pipe, wall bushing, cable termination, transformer
Deng.High voltage electric equipment described in the utility model, it is simply that to these electrical equipment sleeve pipes, wall bushing,
The general designation of the product such as cable termination, transformer.
In above-mentioned high voltage electric equipment, it is typically provided with major insulation and the insulating coating being enclosed within outside major insulation,
All the time, those skilled in the art think that the gap between the major insulation and external insulation of High-Voltage Electrical Appliances must
Must fill insulant.As a example by existing dry sleeve, generally with electric capacity core body for sleeve pipe major insulation, by
Extraordinary insulating paper through epoxy impregnation rolls and forms under vacuo；Capacitance core body is positioned at insulating coating (hollow absolutely
Edge) in, described insulating coating is usually insulator or composite hollow insulator.After sleeve pipe is assembled, absolutely
In edge overcoat, fill insulant is to eliminate the air gap between electric capacity core body and insulating coating, filling exhausted
Edge material is generally silicone grease cream-like or flexible polyurethane foam or outstanding lucky Neil paste, it is also possible to be
Transformer oil or SF6 gas etc..Existing sleeve pipe needs to fill insulation between insulating coating and electric capacity core body
Material, relatively costly.And when it come to fill and will relate to sealing structure accordingly, seal monitoring device
With detection operation, the structure making sleeve pipe is complicated, can improve the most again product cost further, and add product
The complexity that product assembling is safeguarded.
Utility model content
The purpose of this utility model is to overcome the defect of prior art, it is provided that a kind of simple in construction, low cost,
Exempt from the sleeve pipe of the condenser type insulation filled.
For achieving the above object, the utility model adopts the technical scheme that
The sleeve pipe of a kind of condenser type insulation exempting to fill, including condenser type insulation core body, described condenser type insulate
It is cased with insulator outside core body, between insulator and condenser type insulation core body, forms the gap exempting to fill, described electric capacity
Being provided with multiple capacitance plate being arranged alternately with insulating barrier in formula insulation core body, the most outermost capacitance plate is for connecing
The ground connection end shield on ground.
Preferably, the axial dimension of the multiple capacitance plates in described condenser type insulation core body the most successively contracts
Short, and two ends to middle part are all, and staged is shunk back.
Preferably, the inner surface of described insulator is provided with the insulating barrier preventing moisture condensation.
Preferably, described insulating barrier is the silicone rubber insulation layer that spraying RTV silicon rubber is formed.
Preferably, it is provided with anti-moisture mechanism for electric between described insulator and condenser type insulation core body.
Preferably, unidirectional natural air-exhaust device it is provided with between described insulator and condenser type insulation core body.
Preferably, the junction at insulator Yu condenser type insulation core body is provided with 3A molecular sieve desiccant.
Preferably, described sleeve pipe is bushing shell for transformer, also includes upper flange, lower flange, end shield terminal, peace
Dress flange and voltage equalizing ball；Upper flange and lower flange are fixed with insulator and are connected, and insulator is fixed on bushing shell for transformer
Upper end, bushing shell for transformer lower end electrically connects with transformer in extending into transformer shell body, mounting flange and electric capacity
The installation being connected to bushing shell for transformer fixed by formula insulation core body and lower flange, at the one of bushing shell for transformer set
End is provided with high-voltage connection terminal, and the other end is provided with voltage equalizing ball；Mounting flange is provided with end shield terminal, condenser type
The ground connection end shield of insulation core body electrically connects with end shield terminal.
Preferably, described sleeve pipe is wall bushing, is cased with two insulators at the two ends of condenser type insulation core body,
Two insulators are connected by respective upper flange and lower flange are fixing with condenser type insulation core body respectively, two porcelain
Install mounting flange additional between the lower flange of set, between two insulators and condenser type insulation core body, form two exempt from
The gap filled.
Preferably, the inner surface of condenser type insulation core body is provided with high pressure equipotential screen, is positioned at condenser type insulation
Conductor in core body electrically connects with high pressure equipotential screen, is formed without filling absolutely between high pressure equipotential screen and conductor
The compartments such as the high pressure of edge medium, are provided with stress set between conductor and condenser type insulation core body.
The sleeve pipe of the condenser type insulation exempting to fill of the present utility model is between hollow insulator and electric capacity core body
Without fill insulant in gap, without vacuumizing, retain common atmospheric air, simple in construction,
Low cost and assemble easy to maintenance.
Accompanying drawing explanation
The structural representation of a kind of bushing shell for transformer of first embodiment that Fig. 1 is of the present utility model；
Fig. 2 is the structural representation of second a kind of cable termination of embodiment of the present utility model；
Detailed description of the invention
A kind of condenser type Insulating A High-Voltage electrical equipment exempting to fill, including condenser type insulation core body, described electric capacity
Formula insulation core body overcoat has hollow insulator, exists and exempt to fill out between hollow insulator and condenser type insulation core body
The gap filled, is provided with multiple capacitance plate being arranged alternately with insulating barrier, wherein in described condenser type insulation core body
Outermost capacitance plate is earthy ground connection end shield.
The condenser type Insulating A High-Voltage electrical equipment exempting to fill of the present utility model is exhausted with condenser type at hollow insulator
Without filling any oil, glue, gas or solid insulating material in gap 4 between edge core body, true without taking out
Sky, retains common atmospheric air；Simple in construction, lightweight, low cost, convenient for installation and maintenance.Can fit
For high-tension apparatuses such as electrical equipment sleeve pipe, wall bushing, cable termination, transformers.Below in conjunction with this
The embodiment of the bushing shell for transformer of utility model and cable termination further describes, and of the present utility model exempts from
The condenser type Insulating A High-Voltage electrical equipment filled is not limited to the following description.
Embodiment one
Of the present utility model exempt from fill condenser type insulation bushing shell for transformer, including high-voltage connection terminal 1, on
Flange 2, hollow insulator 3, condenser type insulation core body 5, lower flange 6, end shield terminal 7, mounting flange 8
With voltage equalizing ball 9.Condenser type insulation core body 5 is coated on outside contact tube, has time at condenser type insulation core body 5 overcoat
, between hollow insulator 3 and condenser type insulation core body 5, there is the gap 4 exempting to fill in core insulation 3.Institute
Stating condenser type insulation core body 5 is dry-type capacitance core body, is provided with multiple and insulation in condenser type insulation core body 5
The capacitance plate 51 that layer is arranged alternately, the most outermost capacitance plate is ground connection end shield, this ground connection end shield and end shield
Terminal 7 electrically connects；Further, the axial dimension of multiple capacitance plates 51 the most successively shortens, and two ends
It is all that staged is shunk back to middle part.Described hollow insulator 3 is insulator, and insulator is enclosed within condenser type insulation core body 5
Upper end, upper flange 2 and lower flange 6 are fixing with hollow insulator 3 to be connected, mounting flange 8 and condenser type
Insulation core body 5 and the fixing installation being connected to bushing shell for transformer of lower flange 6, at bushing shell for transformer set
One end is provided with high-voltage connection terminal 1, and the other end is provided with voltage equalizing ball 9；Mounting flange 8 is provided with end shield terminal 7,
The ground connection end shield of condenser type insulation core body 5 electrically connects with end shield terminal 7.Bushing shell for transformer is cased with hollow insulation
The upper end of son 3 can be connected with external current conductor, and lower end electrically connects with transformer in extending into transformer shell body,
And be connected by mounting flange 8 and transformer shell are fixing.
The condenser type insulating transformer sleeve pipe exempting to fill of the present utility model is exhausted with condenser type at hollow insulator 3
Without filling any oil, glue, gas or solid insulating material in gap 4 between edge core body 5, without taking out
Vacuum, retains common atmospheric air.Reduce field intensity by multiple capacitance plates and Electric Field Distribution is uniform, insulator
Inside only needs to keep atmospheric air, can be in order to avoid filling any other dielectric；Due to exhausted without filling other
Edge material, is also no need for special encapsulation process, more need not follow-up corresponding air tightness detection equipment and inspection
Surveying operation so that bushing shell for transformer structure is greatly simplified, and cost is substantially reduced, its assembling is safeguarded the simplest
Single.Such as owing to without filling insulating oil, bushing shell for transformer being also no need for arrange conservator structure and sealing
Structure, structure is greatly simplified.Such as without filling expensive outstanding lucky Neil paste, cost can be significantly
Reduce.
The present embodiment is the bushing shell for transformer connecting external conductor with transformer, and certain the utility model can also
For all kinds of bushings such as wall bushing, GIS sleeve pipes.The present embodiment hollow core insulator 3 is insulator, when
Can also be so the external insulation of composite, outside condenser type insulation core body 5, also can be set with silicon rubber compound air
Core insulation, exists between exempting to fill between silicon rubber composite hollow isolators and condenser type insulation core body 5
Gap 4.The outer hollow insulator 3 that also can install additional of condenser type insulation core body 5 below mounting flange 8, installation knot
Structure is identical with the structure above mounting flange 8.As during for wall bushing, at the two of condenser type insulation core body 5
End is cased with two insulators, and two insulators are insulated with condenser type respectively by respective upper flange 2 and lower flange 6
Core body 5 is fixing to be connected, and installs mounting flange additional, at two insulators and electric capacity between the lower flange 6 of two insulators
There are two gaps exempting to fill between formula insulation core body 5.Additionally, the contact tube of condenser type insulation core body 5
Can also be the conducting rod of current-carrying, the one end being provided with voltage equalizing ball 9 can also be set to binding post；High-voltage connection
Terminal 1 is not in some cases perhaps without (when conforming to high-pressure conductor such as this apparatus body).This belongs to this
The protection domain of utility model.
Further, between hollow insulator 3 and condenser type insulation core body 5, it is provided with anti-moisture mechanism for electric, due at sky
There is gap 4 between core insulation 3 and condenser type insulation core body 5, and normal air can circulate, and should do
Fortunately the moistureproof work in gap 4, it is to avoid wet gas insulator and insulation core body surface condensation cause along face
Flashover, to improve the reliability of product.The inner surface of the insulator in both sides, gap 4 and/or condenser type insulating core
The outer surface of body is provided with insulating barrier by the way of spraying hydrophobic material, such as RTV silicon rubber, and can be effective
Prevent the condensation of aqueous vapor.Can also install additional between hollow insulator 3 and condenser type insulation core body 5 unidirectional from
So exhaust apparatus so that it is can get rid of wet gas at any time again can be explosion-proof；A kind of preferably natural air-exhaust device can
Being to place some 3A molecular sieve desiccants in the junction of hollow insulator 3 with condenser type insulation core body 5,
3A molecular sieve has the characteristic of one-way exhaust, can play dry effect and wet gas be discharged.Use
The exhaust of 3A molecular sieve can be arranged without the circuit of other complexity or structure, safeguards simple, is the most also not excluded for
Use other exhaust apparatus.
Embodiment two
As in figure 2 it is shown, a kind of condenser type insulated cable terminal exempting to fill of the present utility model, including upper method
Orchid 12, hollow insulator 13, condenser type insulation core body 15, ground connection flange 18.Cable termination includes electric capacity
Formula insulation core body 15, condenser type insulation core body 15 overcoat has hollow insulator 13, hollow insulator 13 with
The external insulation gap 14 exempting to fill is there is between condenser type insulation core body 15.Upper flange 12 and ground connection flange 18
It is connected fixing with condenser type insulation core body 15 for hollow insulator 13.It is provided with in condenser type insulation core body 15
Multiple capacitance plates 151 being arranged alternately with insulating barrier, the most outermost capacitance plate 151 is earthy ground connection
End shield, this ground connection end shield electrically connects with ground connection flange 18.By the cable conduction core 17 of high-tension cable during installation
Insulation protection is carried out in being installed to cable termination.Capacitance type cable terminal of the present utility model is at hollow insulator
13 is interior with the external insulation gap 14 that condenser type insulation core body 15 is formed without filling any oil, glue, gas or solid
Body insulating materials, without vacuumizing, simple in construction, weight are little, low cost.
Further, capacitance type cable terminal of the present utility model also includes being arranged on cable conduction core 17 and electric capacity
Stress set 16 between formula insulation core body 15, is provided with high pressure etc. on the inner surface of condenser type insulation core body 15
Position screen 10 (capacitance plates), cable conduction core 17 electrically connects with high pressure equipotential screen 10, at high pressure equipotential screen 10
And there is the compartments 19 such as high pressure without filling other dielectrics between cable conduction core 17.Concrete, should
Power set 16 is positioned at capacitance type cable terminal one end, is enclosed within cable conduction core 17, condenser type insulation core body 15
Closely crimping with stress set 16, cable conduction core 17 is by conducting rod 11 and upper flange 12 and high pressure equipotential
Screen 10 electrical connection, high pressure equipotential screen 10 is extended to stress by upper flange 12 and overlaps 16 end faces, by high pressure etc.
Position screen 10, cable conduction core 17, stress overlaps 16 end faces and upper flange 12 surrounds the compartments 19 such as a high pressure, storehouse
Electric field intensity inside high is zero.Multiple capacitance plate 151 being arranged alternately with insulating barrier it is provided with in condenser type insulation core body 15,
Outermost ground connection end shield is connected with ground connection flange 18.Multiple capacitance plates 151 in condenser type insulation core body 15
Axial dimension the most successively shorten, and be that staged is shunk back axially from upper flange to ground side.
When the cable termination of the present embodiment makes, will have the condenser type insulation core body of upper flange and ground connection flange
(such as, epoxy fibreglass holding), stress set (such as, silicon rubber makes) and hollow insulator (example
Such as insulator) be assembled together, the high pressure equipotential screen of condenser type insulation core body inner surface (such as, by metal forming or
Semi-conductive tape lays in a insulating layer, or is sprayed on condenser type insulation core body inner surface) and cable conduction core structure
Become the compartments (essence is an air chamber) such as a high pressure, between existing between condenser type insulation core body and hollow insulator
Gap.Behind scene, one section of cable (coordinating with capacitance type cable terminal head length) should be peeled off cable sheath,
Remove the semi-conductive layer of cable, and end crimping conducting rod, then this is not filled with the capacitor type of dielectric
Cable termination is sleeved on the cable peeling crust off, then is fixed architecturally by flange.
Due between condenser type insulation core body and hollow insulator without fill insulant, simple in construction and
Weight saving, easy for installation.When assembling at the scene, owing in condenser type insulation core body, each point current potential is different,
And condenser type insulation core body unavoidably has the air gap when assembling with cable, the necessary filling of existing product is exhausted
Edge medium is in order to improve dielectric strength and to reduce partial discharge quantity, and the utility model is then by insulating at condenser type
Core body inner surface arranges the compartments such as high pressure, and in making cavity, each point current potential is identical, and electric-field intensity is zero, the most not
Dielectric need to be filled.Not only solve between condenser type insulation core body and conductor without filling asking of dielectric
Topic, and alleviate product weight, reduce manufacturing cost.
In addition the technical scheme of the compartment such as high pressure of the present embodiment can be used for electrical equipment sleeve pipe, through walls
The high voltage electric equipment such as sleeve pipe and bus.During such as bushing shell for transformer for wearing cable formula, the compartment such as high pressure is located at electric capacity
Between formula insulation core body and contact tube, when for current-carrying formula, the compartment such as high pressure be located at condenser type insulation core body and
Between conducting rod, at this, contact tube, conducting rod and cable conduction core are referred to as conductor.
Above content is to combine concrete preferred embodiment further detailed description of the utility model,
It cannot be assumed that of the present utility model being embodied as is confined to these explanations.For technology belonging to the utility model
For the those of ordinary skill in field, without departing from the concept of the premise utility, it is also possible to if making
Dry simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (10)
1. exempt from a sleeve pipe for the condenser type insulation filled, including condenser type insulation core body, it is characterised in that:
It is cased with insulator outside described condenser type insulation core body, is formed between insulator and condenser type insulation core body and exempt from filling
Gap, is provided with multiple capacitance plate being arranged alternately with insulating barrier, wherein outermost in described condenser type insulation core body
The capacitance plate of side is earthy ground connection end shield.
The sleeve pipe of the condenser type insulation exempting to fill the most according to claim 1, it is characterised in that: described
The axial dimension of the multiple capacitance plates in condenser type insulation core body the most successively shortens, and two ends all in
Portion is that staged is shunk back.
The sleeve pipe of the condenser type insulation exempting to fill the most according to claim 1, it is characterised in that: described
The inner surface of insulator is provided with the insulating barrier preventing moisture condensation.
The sleeve pipe of the condenser type insulation exempting to fill the most according to claim 3, it is characterised in that: described
Insulating barrier be spraying RTV silicon rubber formed silicone rubber insulation layer.
The sleeve pipe of the condenser type insulation exempting to fill the most according to claim 1, it is characterised in that: described
Insulator and condenser type insulation core body between be provided with anti-moisture mechanism for electric.
The sleeve pipe of the condenser type insulation exempting to fill the most according to claim 1, it is characterised in that: described
Unidirectional natural air-exhaust device it is provided with between insulator and condenser type insulation core body.
The sleeve pipe of the condenser type insulation exempting to fill the most according to claim 6, it is characterised in that: at porcelain
Set is provided with 3A molecular sieve desiccant with the junction of condenser type insulation core body.
The sleeve pipe of the condenser type insulation exempting to fill the most according to claim 1, it is characterised in that: described
Sleeve pipe is bushing shell for transformer, also includes upper flange, lower flange, end shield terminal, mounting flange and voltage equalizing ball；
Upper flange and lower flange are fixed with insulator and are connected, and insulator is fixed on bushing shell for transformer upper end, bushing shell for transformer
Lower end extend in transformer shell body and electrically connects with transformer, mounting flange and condenser type insulation core body and under
Flange fixes the installation being connected to bushing shell for transformer, is provided with high-voltage terminal in one end of bushing shell for transformer set
Son, the other end is provided with voltage equalizing ball；Mounting flange is provided with end shield terminal, the ground connection end of condenser type insulation core body
Screen electrically connects with end shield terminal.
9. according to the sleeve pipe of the arbitrary described condenser type insulation exempting to fill of claim 1-7, it is characterised in that:
Described sleeve pipe is wall bushing, is cased with two insulators at the two ends of condenser type insulation core body, and two insulators pass through
Respective upper flange and lower flange are fixing with condenser type insulation core body respectively to be connected, the lower flange of two insulators it
Between install mounting flange additional, between two insulators and condenser type insulation core body formed two exempt from fill gaps.
The sleeve pipe of the condenser type insulation exempting to fill the most according to claim 1, it is characterised in that:
The inner surface of condenser type insulation core body is provided with high pressure equipotential screen, be positioned at the conductor of condenser type insulation core body with
High pressure equipotential screen electrically connects, and forms the high pressure etc. without filling dielectric between high pressure equipotential screen and conductor
Compartment, is provided with stress set between conductor and condenser type insulation core body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620076817.1U CN205542212U (en) | 2016-01-26 | 2016-01-26 | Exempt from insulating sleeve pipe of capacitanc of packing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620076817.1U CN205542212U (en) | 2016-01-26 | 2016-01-26 | Exempt from insulating sleeve pipe of capacitanc of packing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205542212U true CN205542212U (en) | 2016-08-31 |
Family
ID=56769860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620076817.1U Expired - Fee Related CN205542212U (en) | 2016-01-26 | 2016-01-26 | Exempt from insulating sleeve pipe of capacitanc of packing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205542212U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106997798A (en) * | 2016-01-26 | 2017-08-01 | 北京天威瑞恒高压套管有限公司 | Exempt from the condenser type Insulating A High-Voltage electrical equipment of filling |
| CN111758139A (en) * | 2017-12-07 | 2020-10-09 | Abb电网瑞士股份公司 | Condenser bushing, transformer and method for producing a condenser bushing |
| CN112630696A (en) * | 2020-12-07 | 2021-04-09 | 广西电网有限责任公司电力科学研究院 | Capacitive screen coupling simulation testing device |
-
2016
- 2016-01-26 CN CN201620076817.1U patent/CN205542212U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106997798A (en) * | 2016-01-26 | 2017-08-01 | 北京天威瑞恒高压套管有限公司 | Exempt from the condenser type Insulating A High-Voltage electrical equipment of filling |
| CN111758139A (en) * | 2017-12-07 | 2020-10-09 | Abb电网瑞士股份公司 | Condenser bushing, transformer and method for producing a condenser bushing |
| CN111758139B (en) * | 2017-12-07 | 2021-09-24 | Abb电网瑞士股份公司 | Condenser bushing, transformer and method for producing a condenser bushing |
| CN112630696A (en) * | 2020-12-07 | 2021-04-09 | 广西电网有限责任公司电力科学研究院 | Capacitive screen coupling simulation testing device |
| CN112630696B (en) * | 2020-12-07 | 2022-09-09 | 广西电网有限责任公司电力科学研究院 | Capacitive screen coupling simulation testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20200126 |