CN112103055B - Transformer outgoing line device sinking-prevention insulation structure - Google Patents
Transformer outgoing line device sinking-prevention insulation structure Download PDFInfo
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- CN112103055B CN112103055B CN202010793142.3A CN202010793142A CN112103055B CN 112103055 B CN112103055 B CN 112103055B CN 202010793142 A CN202010793142 A CN 202010793142A CN 112103055 B CN112103055 B CN 112103055B
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- outlet device
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
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- Power Engineering (AREA)
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Abstract
The invention relates to a transformer wire outlet device anti-sinking insulation structure which comprises more than two layers of insulation paper cylinders nested layer by layer, wherein more than two insulation supporting strips and limiting supporting strips are uniformly distributed among the insulation paper cylinders along the circumferential direction, and the limiting paper cylinder is bonded and fixed on the outer side of the outermost insulation paper cylinder. The anti-sinking insulation structure of the transformer wire outlet device can transmit the dead weight of the wire outlet device to the external wire clamp installation and fixation structure layer by layer through the matching of the insulation paper tube, the insulation stay, the limit stay and the limit paper tube, so that the insulation structure is prevented from loosening along the vertical direction, and the wire outlet device is reliably fixed. The anti-sinking insulation structure ensures that the wire outlet device of the transformer has enough mechanical strength and installation fixing strength, and designs reliable anti-sinking measures, thereby avoiding the wire outlet device from sinking in the running process of the transformer, effectively avoiding the wire outlet device from sinking and potential safety hazards caused by the wire outlet device, and ensuring the safe running of the transformer.
Description
Technical Field
The invention belongs to the technical field of transformer production and manufacturing, and particularly relates to an anti-sinking insulation structure of a transformer wire outlet device.
Background
The transformer wire outlet device is a set of complex oil paper insulation system generally composed of a pressure equalizing pipe, a pressure equalizing ball, a pressure equalizing ring, insulation paper pulp, insulation paper, an insulation paper tube, an insulation stay, an insulation cushion block and the like, and protects a current-carrying lead of a transformer inside the transformer to finish connection and matching of a coil wire outlet to a terminal in casing oil, so that safe operation of a lead structure under electric field stress is guaranteed.
The transformer outlet device is generally assembled in the lifting seat and vertically mounted on the transformer body along with the net side lifting seat. If the mechanical strength of the wire outlet device or/and the mounting and fixing strength of the wire outlet device in the lifting seat are/is not enough, the wire outlet device may be displaced downwards along the vertical direction under the influence of the self weight of the wire outlet device and the operation vibration of the transformer and other factors, so that the electrical insulation margin of the wire outlet device is reduced, and discharge occurs between the wire outlet device and the lifting seat under serious conditions, thereby seriously influencing the safe operation of the transformer.
Disclosure of Invention
In order to solve the technical problem, the invention provides an anti-sinking insulation structure of a transformer wire outlet device. The technical scheme adopted by the invention is as follows:
the anti-sinking insulation structure of the transformer wire outlet device comprises more than two layers of insulation paper cylinders which are nested layer by layer, more than two insulation supporting strips and limiting supporting strips are uniformly distributed between the insulation paper cylinders which are nested layer by layer along the circumferential direction, and the limiting paper cylinder is fixedly bonded on the outer side of the outermost insulation paper cylinder.
When the anti-sinking insulation structure is used, the innermost insulation paper tube of the anti-sinking insulation structure is sleeved on the transformer wire outlet device and tightly attached to the transformer wire outlet device, the outermost limit paper tube of the anti-sinking insulation structure is tightly attached to the external wire clamp installation fixing structure, and the transformer wire outlet device is prevented from sinking due to self weight or vibration.
Preferably, the insulating paper tube is cylindrical and is formed by rolling a paperboard, and the diameter of the insulating paper tube is respectively matched with the internal wire outlet device, each layer of insulating supporting strips and the limiting supporting strips.
Preferably, the insulating paper tube is formed by buckling two semicircular components, and the joint is in groove lap joint and is not bonded.
Preferably, the surfaces of the insulating supporting strips and the limiting supporting strips, which correspond to the insulating paper tube, are matched and processed into cambered surfaces, and the cambered surfaces are fixedly bonded with the insulating paper tube.
Preferably, the upper end and the lower end of the limiting stay are respectively designed into an extending structure, and the extending structure and the insulating paper cylinder are buckled into a whole.
Preferably, the insulation supporting strips and the limiting supporting strips are distributed at intervals in the same layer and correspondingly distributed between adjacent layers.
Preferably, assuming that 10 insulating struts and limiting struts are required in a common layer, 6 insulating struts and 4 limiting struts are arranged in one layer, and 4 insulating struts and 6 limiting struts are arranged in an adjacent layer.
Preferably, the binding belt is made of PET materials.
Preferably, the insulating supporting strips distributed at intervals in the same layer are provided with grooves at the same height corresponding to the limiting supporting strips, and binding belts are assembled in the grooves.
Preferably, the outside of the limiting paper tube is provided with a binding belt.
The beneficial effects of the invention are:
1) The anti-sinking insulation structure of the transformer wire outlet device can transmit the dead weight of the wire outlet device to the external wire clamp installation and fixation structure layer by layer through the matching of the insulation paper tube, the insulation stay, the limit stay and the limit paper tube, so that the insulation structure is prevented from loosening along the vertical direction, and the wire outlet device is reliably fixed.
2) The anti-sinking insulation structure ensures that the wire outlet device of the transformer has enough mechanical strength and installation fixing strength, and designs reliable anti-sinking measures, thereby avoiding the wire outlet device from sinking in the running process of the transformer, effectively avoiding the wire outlet device from sinking and potential safety hazards caused by the wire outlet device, and ensuring the safe running of the transformer.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are specific embodiments of the invention, and that other drawings within the scope of the present application can be obtained by those skilled in the art without inventive effort.
FIG. 1 is a cross-sectional view of a sag prevention insulation structure of an embodiment of the present invention;
FIG. 2 is a top view of an anti-sag insulation structure according to an embodiment of the present invention;
in the figure: (1) the binding tape is an insulating paper tube, (2) an insulating stay, (3) a limiting stay, (4) a limiting paper tube, and (5) a binding tape.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In the embodiment of the invention, a three-layer insulating paper tube (1) is taken as an example for explanation; 6 insulating supporting strips (2) and 4 limiting supporting strips (3) are arranged between the inner-layer insulating paper tube (1) and the middle-layer insulating paper tube (1), and 4 insulating supporting strips (2) and 6 limiting supporting strips (3) are arranged between the middle-layer insulating paper tube (1) and the outer-layer insulating paper tube (1).
In the embodiment of the invention, assuming that 10 insulating supporting strips (2) and limiting supporting strips (3) are required in the same layer, the same layer is designed into 4+6 instead of 5+5, so that the same two parts are uniformly divided corresponding to the paper tube, the universality is provided, and the misuse of parts during assembly is prevented; 4+6 and 6+4 are respectively arranged between different layers so that the spacing stay (3) between different layers is correspondingly matched with the insulation stay (2).
As shown in fig. 1, it is a cross-sectional view of the sinking prevention insulation structure of the embodiment of the invention; fig. 2 is a top view of the anti-sinking insulation structure according to the embodiment of the invention. The utility model provides a transformer device of being qualified for next round of competitions prevents insulating structure that sinks, includes the nested insulating fiber container (1) of successive layer more than two-layer, along insulating stay (2), spacing stay (3) of each more than two of circumferencial direction evenly distributed between the nested insulating fiber container (1) of successive layer, at the fixed spacing fiber container (4) that bonds in the outside of outermost insulating fiber container (1), the outside assembly ligature area (5) of spacing fiber container (4), ligature area (5) be the PET material.
The insulating paper cylinder (1) is cylindrical and is formed by rolling a paperboard, and the diameter of the insulating paper cylinder is respectively matched with the internal wire outlet device, each layer of insulating supporting strips (2) and the limiting supporting strips (3); the insulating paper cylinder (1) is formed by buckling two semicircular components, and the joint is in groove lap joint and is not bonded.
The insulating supporting strips (2) and the limiting supporting strips (3) are matched with the surface of the insulating paper tube (1) to be processed into cambered surfaces and are fixedly and reliably bonded with the insulating paper tube (1); the insulating supporting strips (2) and the limiting supporting strips (3) are distributed at intervals in the same layer and correspondingly distributed between adjacent layers; insulation supporting strips (2) which are distributed at intervals in the same layer and slots which are at the same height and correspond to the limiting supporting strips (3) are arranged in the same layer, and binding bands (5) are assembled in the slots.
The upper end and the lower end of the limiting stay (3) are respectively designed into an extending structure, and are buckled with the insulating paper cylinder (1) into a whole through the extending structure.
The insulation supporting strips (2), the limiting supporting strips (3) and the limiting paper cylinders (4) are all made of insulation paperboards.
Finally, it is to be noted that: the above examples are only specific embodiments of the present invention, and are not intended to limit the technical solutions of the present invention, and the scope of the present invention is not limited thereto. Those skilled in the art will understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein.
Claims (5)
1. The transformer wire outlet device sinking-prevention insulating structure is characterized by comprising more than two layers of insulating paper cylinders (1) which are nested layer by layer, wherein more than two insulating supporting strips (2) and limiting supporting strips (3) are uniformly distributed between the insulating paper cylinders (1) which are nested layer by layer along the circumferential direction, and the limiting paper cylinder (4) is fixedly bonded on the outer side of the outermost insulating paper cylinder (1);
the insulating paper tube (1) is cylindrical and is formed by rolling a paperboard, and the diameter of the insulating paper tube is respectively matched with the internal wire outlet device, each layer of insulating supporting strips (2) and the limiting supporting strips (3); the insulating paper cylinder (1) is formed by buckling two semicircular components, and the joint is in groove lap joint and is not bonded;
the insulating supporting strips (2) and the limiting supporting strips (3) are matched and processed into cambered surfaces corresponding to the surfaces of the insulating paper tube (1) and fixedly bonded with the insulating paper tube (1); the upper end and the lower end of the limiting stay (3) are respectively designed into an extending structure, and are buckled with the insulating paper cylinder (1) into a whole through the extending structure; the insulating supporting strips (2) and the limiting supporting strips (3) are distributed at intervals in the same layer and correspondingly distributed between adjacent layers;
the insulation paper tube (1) at the innermost layer of the anti-sinking insulation structure is sleeved on the transformer wire outlet device and tightly attached to the transformer wire outlet device, and the limiting paper tube (4) at the outermost layer of the anti-sinking insulation structure is tightly attached to the external wire clamp mounting and fixing structure.
2. The transformer outlet device anti-sinking insulation structure according to claim 1, wherein assuming that 10 insulating struts (2) and limiting struts (3) are required in a same layer, 6 insulating struts (2) and 4 limiting struts (3) are arranged in one layer, and 4 insulating struts (2) and 6 limiting struts (3) are arranged in an adjacent layer.
3. The transformer outlet device anti-sinking insulation structure according to claim 1, further comprising a binding band (5), wherein the binding band (5) is made of PET material.
4. The transformer outlet device anti-sinking insulation structure according to claim 3, wherein the insulation stays (2) distributed at intervals in the same layer are slotted at the same height corresponding to the limiting stays (3), and the binding bands (5) are assembled in the slots.
5. The transformer outlet device anti-sinking insulation structure according to claim 3, wherein the limiting paper tube (4) is provided with a binding band (5) at the outer side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010793142.3A CN112103055B (en) | 2020-08-10 | 2020-08-10 | Transformer outgoing line device sinking-prevention insulation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010793142.3A CN112103055B (en) | 2020-08-10 | 2020-08-10 | Transformer outgoing line device sinking-prevention insulation structure |
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| Publication Number | Publication Date |
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| CN112103055A CN112103055A (en) | 2020-12-18 |
| CN112103055B true CN112103055B (en) | 2022-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010793142.3A Active CN112103055B (en) | 2020-08-10 | 2020-08-10 | Transformer outgoing line device sinking-prevention insulation structure |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202008915U (en) * | 2010-12-31 | 2011-10-12 | 保定天威集团有限公司 | Supporting strip structure among paper tubes for ultrahigh-voltage converter transformer valve outgoing line |
| CN106558404A (en) * | 2015-09-24 | 2017-04-05 | 特变电工衡阳变压器有限公司 | The outlet structure and high-impedance transformer of high-impedance transformer |
| CN206194503U (en) * | 2016-10-21 | 2017-05-24 | 辽宁兴启电工材料有限责任公司 | Direct current device of being qualified for next round of competitions for transformer with stopper ring |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331551B (en) * | 2011-07-28 | 2014-08-27 | 中国电力科学研究院 | System for testing insulation reliability of ultra-high-voltage line-outgoing device |
| CN204480874U (en) * | 2015-02-14 | 2015-07-15 | 云南电网有限责任公司带电作业分公司 | A kind of voltage transformer protection device |
| CN206194502U (en) * | 2016-10-21 | 2017-05-24 | 辽宁兴启电工材料有限责任公司 | Transformer is with exchanging device of being qualified for next round of competitions with stopper ring |
| CN206893441U (en) * | 2017-06-27 | 2018-01-16 | 正泰电气股份有限公司 | A kind of fixed structure of reactor outlet seal |
| CN207097637U (en) * | 2017-08-20 | 2018-03-13 | 山东金科电气有限公司 | A kind of non-encapsulated transformer coil |
| CN207425585U (en) * | 2017-12-08 | 2018-05-29 | 保定天威保变电气股份有限公司 | A kind of anti-fall clamping device of large-scale power transformer lead |
| CN110660572A (en) * | 2019-10-09 | 2020-01-07 | 山东电力设备有限公司 | Transformer winding locking device |
| CN213211923U (en) * | 2020-08-10 | 2021-05-14 | 山东电力设备有限公司 | Transformer outgoing line device sinking-prevention insulation structure |
-
2020
- 2020-08-10 CN CN202010793142.3A patent/CN112103055B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202008915U (en) * | 2010-12-31 | 2011-10-12 | 保定天威集团有限公司 | Supporting strip structure among paper tubes for ultrahigh-voltage converter transformer valve outgoing line |
| CN106558404A (en) * | 2015-09-24 | 2017-04-05 | 特变电工衡阳变压器有限公司 | The outlet structure and high-impedance transformer of high-impedance transformer |
| CN206194503U (en) * | 2016-10-21 | 2017-05-24 | 辽宁兴启电工材料有限责任公司 | Direct current device of being qualified for next round of competitions for transformer with stopper ring |
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| CN112103055A (en) | 2020-12-18 |
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Inventor after: Guo Penghong Inventor after: Li Tingting Inventor after: Sun Fengzhou Inventor after: Xi Jiankai Inventor after: Tan Li Inventor after: Lu Licheng Inventor after: Wang Lei Inventor after: Ma Ding Inventor after: Zhang Zhiqiang Inventor after: Wang Mingsheng Inventor after: Xu Fuqiang Inventor after: Xu Yongwei Inventor before: Tan Li Inventor before: Li Tingting Inventor before: Sun Fengzhou Inventor before: Xi Jiankai Inventor before: Lu Licheng Inventor before: Wang Lei Inventor before: Guo Penghong Inventor before: Ma Ding Inventor before: Zhang Zhiqiang Inventor before: Wang Mingsheng Inventor before: Xu Fuqiang Inventor before: Xu Yongwei |
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