CN203423051U - Anti-explosion firing oilpaper capacitive transformer sleeving - Google Patents
Anti-explosion firing oilpaper capacitive transformer sleeving Download PDFInfo
- Publication number
- CN203423051U CN203423051U CN201320562021.3U CN201320562021U CN203423051U CN 203423051 U CN203423051 U CN 203423051U CN 201320562021 U CN201320562021 U CN 201320562021U CN 203423051 U CN203423051 U CN 203423051U
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- flange
- oil
- insulation
- cylinder
- metal expander
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Abstract
The utility model discloses an anti-explosion firing oilpaper capacitive transformer sleeving, which comprises a wiring terminal, a metal expander, an upper insulator, a mounting flange, a flange cylinder, a lower insulator, a base conductive rod and a capacitive core, wherein the lower insulator is a glass steel cylinder, the mounting flange and the flange cylinder are fixed together, the flange cylinder and the lower insulator are cast to be an integrated body, the base is arranged on the lower insulator through glue, the capacitive core which is used as a main insulator is fixed and sealed in the upper insulator, the flange cylinder, the lower insulator and the base, and the metal expander which enables the inner portion of a sleeving to be always kept in micro-positive pressure is arranged on the top portion of the upper insulator. When the pressure in the anti-explosion firing oilpaper capacitive transformer sleeving increases because of fault, the metal expander on the head acts firstly, and can effectively prevent the explosion accidents of the anti-explosion firing oilpaper capacitive transformer sleeving. The mounting flange is further provided with an oil sampling device, can be directly connected with an oil sampling needle in a micro-positive pressure state, does not need to discharge gas, and is extremely convenient.
Description
Technical field
The utility model relates to a kind of bushing shell for transformer, is specifically related to a kind of blast protection oil-impregnated paper condenser type transformer bushing on fire.
Background technology
Bushing shell for transformer service conditions is very harsh, is subject to many-sided combined influences such as voltage, electric current, pulling force, vibrations, wind-force, atmosphere filth during operation, once produce fault, very easily causes fault spread, and loss is serious.Therefore, sleeve pipe is also the accessory of paying close attention to the most in each main frame accessory.
Bushing shell for transformer is blasted, and may cause heavy economic losses and the personnel of threat life security, and the main cause of its generation has:
1, the main cause that the incipient failure that inside pipe casing water inlet is still occurs, mostly is catastrophic discontinuityfailure, and harmfulness is very big.Main cause is (when the reason of destruction sealing may exist defect or sleeve pipe to install for structural design, the misoperation of installation personnel causes) under non-sealing condition, and inside pipe casing infiltrates moisture content.
2, inside pipe casing disruptive discharge, causes insulating oil to decompose in a large number generation gas, causes inside pipe casing pressure excessive, thus the accident of blasting.
Summary of the invention
In order to overcome the shortcoming of existing oil-impregnated paper condenser type transformer bushing, the purpose of this utility model is to provide a kind of blast protection oil-impregnated paper condenser type transformer bushing on fire, and this sleeve pipe reliability is high, can guarantee security of operation, easily realize.
The purpose of this utility model is achieved through the following technical solutions:
A kind of blast protection oil-impregnated paper condenser type transformer bushing on fire, comprise binding post, metal expander, upper insulation, mounting flange, flange cylinder, lower insulation, base, conducting rod and capacitor core, it is characterized in that: described lower insulation is glass fibre reinforced plastic cylinder, mounting flange and flange cylinder are fixed together, and flange cylinder and lower insulation pouring are integrated; Base plate glue is contained in lower insulation; As the capacitor core of main insulation, by brute spring, fix and be sealed in upper insulation, flange cylinder, lower insulation and base; At the top of upper insulation, be provided with the metal expander that makes inside pipe casing remain pressure-fired.
In the utility model, lower insulation replaces insulator with high strength glass steel cylinder, flange and flange cylinder welding, flange cylinder and lower insulation pouring are integrated, and base plate glue is contained in lower insulation, and capacitor core is fixed by base and sealed, in whole sleeve pipe oil, be integrated, and guarantee sealing, avoid porcelain piece because of hypertonia generation seepage or burst, harm equipment and personal safety.
Metal expander adopts dual damascene structure, and metal expander comprises lower flange, upper flange, radial corrugation and axial ripple, and one end of radial corrugation is connected with upper flange, and the other end is connected with the upper end of axial ripple; Axially the lower end of ripple is connected with lower flange.
In metal expander, lead to lower insulating square to being provided with annular steps.Annular steps exceeds genus expander baseplane 20mm.On mounting flange, be provided with the oil sealed sampling device being directly connected with the needle tubing that draws oil sample.
In the utility model, at sleeve pipe head, with a pair of corrugated metal expander, replace traditional conservator, metal expander, as the oil storage parts of sleeve pipe, expands with heat and contract with cold for insulating oil in sleeve pipe, makes inside pipe casing remain pressure-fired; When inside pipe casing occurs that because of fault pressure raises, head metal expander first moves, and can effectively avoid the generation of bushing explosion accident; In sleeve pipe metal expander, lead to casing main body and establish annular steps, except annular steps and casing main body connection, whole sleeve pipe is still in sealing state, and annular steps, higher than the about 20mm in baseplane, still can guarantee the safe operation of sleeve pipe in the short time after expander action.
On mounting flange, also have oil sealed sampling device, under slight positive pressure state, can directly with getting spindle pipe, be connected, without venting, very convenient.
Accompanying drawing explanation
Fig. 1 is the utility model blast protection oilpaper bushing shell for transformer on fire structural representation;
Fig. 2 is the local enlarged diagram of A portion in Fig. 1;
Fig. 3 is the local enlarged diagram of B portion in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
A kind of blast protection oil-impregnated paper condenser type transformer bushing on fire, see Fig. 1, this sleeve pipe comprises binding post 1, metal expander 2, upper insulation 3, mounting flange 4, flange cylinder 5, lower insulation 6, base 7, conducting rod 12 and capacitor core 8, capacitor core 8, as main insulation, makes sleeve pipe integral sealing by seal between brute spring 9 and parts.The 6 use high strength glass fiber reinforced plastic insulating cylinders that insulate under sleeve pipe replace, mounting flange 4 and 5 welding of flange cylinder, and insulator flange cylinder 5 and lower insulation 6 are cast for one, and base 7 mucilage bindings are in lower insulation 6, and capacitor core 8 is fixing and sealing by base 7; Sleeve pipe head is established with a pair of corrugated metal expander 2 and is replaced traditional conservator, makes interiors of products remain pressure-fired; See Fig. 2, metal expander adopts dual damascene structure, and metal expander 2 comprises lower flange 23, upper flange 24, radial corrugation 21 and axial ripple 22, and one end of radial corrugation is connected with upper flange, and the other end is connected with the upper end of axial ripple; The lower end and lower flange of axial ripple) be connected.In metal expander, lead to casing main body and be provided with annular steps 10, annular steps is higher than the about 20mm in baseplane.On sleeve pipe mounting flange 4, get oily device 11, can directly with the needle tubing that draws oil sample, be connected, see Fig. 3.
In the utility model, metal expander, as the oil storage parts of sleeve pipe, expands with heat and contract with cold for insulating oil in sleeve pipe, makes inside pipe casing remain pressure-fired; When inside pipe casing occurs that because of fault pressure raises, head metal expander first moves, and can effectively avoid the generation of bushing explosion accident; In sleeve pipe metal expander, lead to casing main body and establish annular steps, except annular steps and casing main body connection, whole sleeve pipe, still in sealing state, still can guarantee the safe operation of sleeve pipe in the short time after expander action.
Claims (5)
1. a blast protection oil-impregnated paper condenser type transformer bushing on fire, comprise binding post (1), upper insulation (3), mounting flange (4), flange cylinder (5), lower insulation (6), base (7), conducting rod (12) and capacitor core (8), it is characterized in that: described lower insulation (6) is glass fibre reinforced plastic cylinder, mounting flange (4) is fixed together with flange cylinder (5), and flange cylinder (5) and lower insulation (6) are cast for one; Base (7) mucilage binding is in lower insulation (6); Capacitor core (8) as main insulation is fixed and is sealed in upper insulation (3), flange cylinder (5), lower insulation (6) and base (7) by brute spring (9); At the top of upper insulation (3), be provided with the metal expander (2) that makes inside pipe casing remain pressure-fired.
2. blast protection according to claim 1 oil-impregnated paper condenser type transformer bushing on fire, it is characterized in that: metal expander (2) adopts dual damascene structure, metal expander (2) comprises lower flange (23), upper flange (24), radial corrugation (21) and axial ripple (22), one end of radial corrugation (21) is connected with upper flange (24), and the other end is connected with the upper end of axial ripple (22); Axially the lower end of ripple (22) is connected with lower flange (23).
3. blast protection according to claim 1 oil-impregnated paper condenser type transformer bushing on fire, is characterized in that: in metal expander (2), lead to lower insulation (6) direction and be provided with annular steps (10).
4. blast protection according to claim 3 oil-impregnated paper condenser type transformer bushing on fire, is characterized in that: annular steps (10) exceeds genus expander (2) baseplane 20mm.
5. blast protection according to claim 1 oil-impregnated paper condenser type transformer bushing on fire, is characterized in that: on mounting flange (4), be provided with the oil sealed sampling device (11) being directly connected with the needle tubing that draws oil sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320562021.3U CN203423051U (en) | 2013-09-11 | 2013-09-11 | Anti-explosion firing oilpaper capacitive transformer sleeving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320562021.3U CN203423051U (en) | 2013-09-11 | 2013-09-11 | Anti-explosion firing oilpaper capacitive transformer sleeving |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203423051U true CN203423051U (en) | 2014-02-05 |
Family
ID=50022143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320562021.3U Expired - Fee Related CN203423051U (en) | 2013-09-11 | 2013-09-11 | Anti-explosion firing oilpaper capacitive transformer sleeving |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203423051U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103456472A (en) * | 2013-09-11 | 2013-12-18 | 江苏智达高压电气有限公司 | Blast protection and fire protection oiled paper capacitor-type transformer casing pipe |
| 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 |
-
2013
- 2013-09-11 CN CN201320562021.3U patent/CN203423051U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103456472A (en) * | 2013-09-11 | 2013-12-18 | 江苏智达高压电气有限公司 | Blast protection and fire protection oiled paper capacitor-type transformer casing pipe |
| WO2015035717A1 (en) * | 2013-09-11 | 2015-03-19 | 江苏智达高压电气有限公司 | Oiled paper capacitor-type transformer casing pipe for blast and fire prevention |
| CN103456472B (en) * | 2013-09-11 | 2016-03-30 | 江苏智达高压电气有限公司 | A kind of blast protection oil-impregnated paper condenser type transformer bushing on fire |
| 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 |
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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: 20140205 Termination date: 20180911 |