CN205542326U - Three umbellate form umbrella skirt structure's dry -type glass steel change of current vary voltage sleeve pipe - Google Patents
Three umbellate form umbrella skirt structure's dry -type glass steel change of current vary voltage sleeve pipe Download PDFInfo
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- CN205542326U CN205542326U CN201620023219.8U CN201620023219U CN205542326U CN 205542326 U CN205542326 U CN 205542326U CN 201620023219 U CN201620023219 U CN 201620023219U CN 205542326 U CN205542326 U CN 205542326U
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Abstract
The utility model discloses a three umbellate form umbrella skirt structure's dry -type glass steel change of current vary voltage sleeve pipe, including the casing main body, the casing main body includes by interior and low -density macromolecular material insulating layer, glass steel electric capacity core, three umbellate form silicon rubber full skirts outer setting, three umbellate form silicon rubber full skirts overlap in glass steel electric capacity core on the surface, glass steel electric capacity core one end end connection has an end cover, other end end connection has junction pole, the cover has the flange on the glass steel electric capacity core of three umbellate form silicon rubber full skirts below, fixes through the flange between junction pole and the glass steel electric capacity core, one serves and is connected with binding post outwards at the end cover, the flange both sides are equipped with ground terminal and glass 0 respectively. The sealed link of dry -type glass fibre reinforced plastic structure is very few, can prevent that the oil impregnate from polluting, reduces operation maintenance work load. The utility model discloses a three umbellate form structure silicon rubber full skirts have to resist does wet ability reinforce, the advantage that can bear higher switching impulse withstand voltage and power frequency withstand voltage of dodging of sudden strain of a muscle.
Description
Technical field
This utility model belongs to converter power transformer technology, is specifically related to the dry type fiberglass converter transformer bushings of a kind of three umbellate form umbrella skirt constructions.
Background technology
Converter transformer bushings is the primary insulation device outside converter power transformer case.Wherein glass fibre reinforced plastic capacitance converter transformer bushings plays high-voltage conducting wires and the effect of exchange rheology transformer case insulation of fixing converter power transformer.Compared to traditional oil-immersed sleeve pipe, there is miniaturization, non-oil ultra high vacuum system, reduced-maintenance advantage.
In the design of this external high-tension insulating bushing, umbrella skirt construction is had the highest requirement.Require that they to have the ability that higher resistance to pollution flashover and Nai Yu dodge.The planform of full skirt can affect leakage distance, and contamination situation and the situation of drenching with rain are had vital impact.Withstanding voltage be weigh sleeve pipe can the important parameter of safe and stable operation, withstanding voltage value is determined by dry arc distance, and dry arc distance is then mainly determined by full skirt shape.The shape of full skirt directly decides the size of dry arc distance, so the external insulation on sleeve pipe that improves of beveled structure has important impact.
Utility model content
The purpose of this utility model is to solve the technical problem existing for prior art；A kind of simple in construction is provided, there is higher laser intensity, the wet sudden strain of a muscle ability of anti-dry sudden strain of a muscle by force, the dry type fiberglass converter transformer bushings of three umbellate form umbrella skirt constructions of higher switching impulse withstanding voltage and power frequency withstanding voltage can be born.
Above-mentioned technical problem of the present utility model is mainly addressed by following technical proposals: the dry type fiberglass change of current transformation sleeve pipe of a kind of three umbellate form umbrella skirt constructions, including casing main body, described casing main body includes the low-density macromolecular material insulating barrier arranged from inside to outside, fiberglass capacitor core, three umbellate form silicon rubber umbrella skirt, described three umbellate form silicon rubber umbrella skirt are placed on fiberglass capacitor core surface, end, fiberglass capacitor core one end connects end cap, other end end connects junction pole, it is cased with flange on fiberglass capacitor core below three umbellate form silicon rubber umbrella skirt, fixed by flange between junction pole and fiberglass capacitor core, end cap outwardly one end connect and has binding post, flange is respectively provided on two sides with ground terminal and measurement terminal.
Described three umbellate form silicon rubber umbrella skirt have multiple, it is placed on the most successively on fiberglass capacitor core surface, described each three umbellate form silicon rubber umbrella skirt include umbrella, middle umbrella and subumbrella, from top to bottom it is arranged in order, with three umbellate form silicon rubber umbrella skirt away from the distance between the end on fiberglass capacitor core surface and the end being connected on fiberglass capacitor core surface as length, the length of described upper umbrella, middle umbrella and subumbrella is successively decreased successively；The upper umbrella spacing of described adjacent upper umbrella and the ratio of upper umbrella outreach are 0.8～1.0, described upper umbrella, middle umbrella and subumbrella tilt separately down, and and horizontal line between full skirt inclination angle the most identical, value is 10 °～15 ° and uses the umbrella footpath that length is different can increase dry arc distance, and then make the dry withstanding voltage of dodging of switching impulse withstanding voltage, power frequency raise, improve operational reliability and the life-span of sleeve pipe；Angle of inclination is set and so can reduce rainwater and filthy accumulation.Sleeve pipe is usually slant setting, along with being sequentially reduced of full skirt external diameter, is not easy to be bridged by rainwater between full skirt, which increases the ability that its moisture-proof dodges.
Measurement terminal of the present utility model is arranged on flange, and inside is connected with fiberglass capacitor core, can online acquisition capacitance of bushing electric current and capacitance voltage signal.Back-up expert system can be transferred to by after data prediction if desired using this terminal as the output interface of converter power transformer insulated on-line monitoring system, insulation situation when providing equipment to run at any time, the beneficially repair based on condition of component of converter power transformer.
This utility model compared with prior art, has the advantages that, has simple in construction, mechanical strength is high, security reliability is high, an environment friendly and pollution-free advantage.Dry type glass fibre reinforced plastic structure sealing part is considerably less, is possible to prevent permeability to pollute, and reduces operation maintenance workload.It is strong that three umbrella-shaped structure silicon rubber umbrella skirt of the present utility model have the wet sudden strain of a muscle ability of anti-dry sudden strain of a muscle, can bear higher switching impulse withstanding voltage and the advantage of power frequency withstanding voltage.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is three umbellate form umbrella skirt construction close-up schematic view of the present utility model；
Description of reference numerals: 1-binding post；2-end cap；3-low-density macromolecular material insulating barrier；4-fiberglass capacitor core；5-measurement terminal；6-flange；7-tri-umbellate form silicon rubber umbrella skirt；The upper umbrella of 71-；Umbrella in 72-；73-subumbrella；74-upper umbrella outreach；The adjacent upper umbrella spacing of 75-；76-full skirt inclination angle；8-ground terminal；9-junction pole.
Detailed description of the invention
With detailed description of the invention, content of the present utility model is described in further details below in conjunction with the accompanying drawings.
Embodiment:
nullRefer to shown in Fig. 1 and Fig. 2，A kind of dry type fiberglass change of current transformation sleeve pipe of three umbellate form umbrella skirt constructions，Including casing main body，Described casing main body includes the low-density macromolecular material insulating barrier 3 arranged from inside to outside、Fiberglass capacitor core 4、Three umbellate form silicon rubber umbrella skirt 7，Described three umbellate form silicon rubber umbrella skirt 7 are placed on fiberglass capacitor core 4 surface，End, fiberglass capacitor core 4 one end connects end cap 2，Other end end connects junction pole 9，It is cased with flange 6 on fiberglass capacitor core 4 below three umbellate form silicon rubber umbrella skirt 7，Fixed by flange 6 between junction pole 9 and fiberglass capacitor core 4，End cap 2 one end outwardly connects and has binding post 1，Flange 6 is respectively provided on two sides with ground terminal 8 and measurement terminal 5，Measurement terminal 5 is internal to be connected with fiberglass capacitor core 4，Can online acquisition capacitance current and capacitance voltage signal.
Described three umbellate form silicon rubber umbrella skirt 7 have multiple, it is placed on the most successively on fiberglass capacitor core 4 surface, described each three umbellate form silicon rubber umbrella skirt 7 include umbrella 71, middle umbrella 72 and subumbrella 73, from top to bottom it is arranged in order, with three umbellate form silicon rubber umbrella skirt 7 away from the distance between the end on fiberglass capacitor core 4 surface and the end being connected on fiberglass capacitor core 4 surface as length, the length of described upper umbrella 71, middle umbrella 72 and subumbrella 73 is successively decreased successively；The described upper umbrella spacing 75 of adjacent upper umbrella 71 and the ratio of upper umbrella outreach 74 are 0.8～1.0, described upper umbrella 71, middle umbrella 72 and subumbrella 73 tilt separately down, and and horizontal line between full skirt inclination angle 76 the most identical, value is 10 °～15 °, concrete adjacent upper umbrella spacing and the ratio of upper umbrella outreach can not be the least, the least can increase full skirt density, are susceptible to pollution flashover, too senior general makes creep age distance reduce, so general value is 0.8～1.0.
Further, fiberglass capacitor core 4 is by soaking the glass fibre with low viscosity, fire resistant epoxy resin and conductive plate Wet Winding Process forms, and through hot setting molding.
When sleeve pipe is carried out on-line measurement, can be using measurement terminal 5 as the output interface of converter power transformer insulated on-line monitoring system, it is connected with fiberglass capacitor core 4 owing to measurement terminal 5 is internal, can online acquisition capacitance of bushing electric current and capacitance voltage signal, and it is transferred to Back-up expert system by after data prediction, insulation situation when providing equipment to run at any time, the beneficially repair based on condition of component of converter power transformer.
Above-listed detailed description is illustrating for this utility model possible embodiments, and this embodiment is also not used to limit the scope of the claims of the present utility model, and all equivalences done without departing from this utility model are implemented or change, are intended to be limited solely by the scope of the claims of this case.
Claims (2)
- null1. the dry type fiberglass change of current transformation sleeve pipe of a umbellate form umbrella skirt construction，Including casing main body，It is characterized in that: described casing main body includes low-density macromolecular material insulating barrier (3) arranged from inside to outside、Fiberglass capacitor core (4)、Three umbellate form silicon rubber umbrella skirt (7)，Described three umbellate form silicon rubber umbrella skirt (7) are placed on fiberglass capacitor core (4) surface，Fiberglass capacitor core (4) end, one end connects end cap (2)，Other end end connects junction pole (9)，It is cased with flange (6) on the fiberglass capacitor core (4) of three umbellate form silicon rubber umbrella skirt (7) lower sections，Fixed by flange (6) between junction pole (9) and fiberglass capacitor core (4)，End cap (2) one end outwardly connects and has binding post (1)，Flange (6) is respectively provided on two sides with ground terminal (8) and measurement terminal (5)，Measurement terminal (5) is internal to be connected with fiberglass capacitor core (4).
- The dry type fiberglass change of current transformation sleeve pipe of three umbellate form umbrella skirt constructions the most as claimed in claim 1, it is characterized in that: described three umbellate form silicon rubber umbrella skirt (7) have multiple, it is placed on the most successively on fiberglass capacitor core (4) surface, described each three umbellate form silicon rubber umbrella skirt (7) include umbrella (71), middle umbrella (72) and subumbrella (73), from top to bottom it is arranged in order, with three umbellate form silicon rubber umbrella skirt (7) away from the distance between end and the end being connected on fiberglass capacitor core (4) surface on fiberglass capacitor core (4) surface as length, described upper umbrella (71), the length of middle umbrella (72) and subumbrella (73) is successively decreased successively；The upper umbrella spacing (75) of described adjacent upper umbrella (71) and the ratio of upper umbrella outreach (74) are 0.8～1.0, described upper umbrella (71), middle umbrella (72) and subumbrella (73) tilt separately down, and and horizontal line between full skirt inclination angle (76) the most identical, value is 10 °～15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620023219.8U CN205542326U (en) | 2016-01-08 | 2016-01-08 | Three umbellate form umbrella skirt structure's dry -type glass steel change of current vary voltage sleeve pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620023219.8U CN205542326U (en) | 2016-01-08 | 2016-01-08 | Three umbellate form umbrella skirt structure's dry -type glass steel change of current vary voltage sleeve pipe |
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| CN205542326U true CN205542326U (en) | 2016-08-31 |
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| CN201620023219.8U Active CN205542326U (en) | 2016-01-08 | 2016-01-08 | Three umbellate form umbrella skirt structure's dry -type glass steel change of current vary voltage sleeve pipe |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106940415A (en) * | 2017-02-07 | 2017-07-11 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | The detecting system of capacitance sleeve pipe with measurement terminal and end shield ground terminal |
| CN112951563A (en) * | 2021-01-29 | 2021-06-11 | 江苏思源赫兹互感器有限公司 | Novel alternating-current transformer bushing structure |
-
2016
- 2016-01-08 CN CN201620023219.8U patent/CN205542326U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106940415A (en) * | 2017-02-07 | 2017-07-11 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | The detecting system of capacitance sleeve pipe with measurement terminal and end shield ground terminal |
| CN106940415B (en) * | 2017-02-07 | 2020-09-25 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Detection system for capacitive bushings with measurement terminal and end screen grounding terminal |
| CN112951563A (en) * | 2021-01-29 | 2021-06-11 | 江苏思源赫兹互感器有限公司 | Novel alternating-current transformer bushing structure |
| CN112951563B (en) * | 2021-01-29 | 2022-07-12 | 江苏思源赫兹互感器有限公司 | Alternating-current transformer bushing structure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Effective date of registration: 20180725 Address after: 510663 A4 seventh, science Avenue, Guangzhou Science City, Luogang District, Guangzhou, Guangdong, seventh Co-patentee after: Wuhan University Patentee after: Repair and Test Center, CSG EHV Power Transmission Company Address before: No. 116 Tianhe Road, Guangzhou, Guangdong Province, Guangdong Co-patentee before: Wuhan University Patentee before: Super-High Transmission Co., China South Electric-Net Co., Ltd. |