CN204732271U - Integrated combination oil-immersed power transformer - Google Patents
Integrated combination oil-immersed power transformer Download PDFInfo
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- CN204732271U CN204732271U CN201520289216.4U CN201520289216U CN204732271U CN 204732271 U CN204732271 U CN 204732271U CN 201520289216 U CN201520289216 U CN 201520289216U CN 204732271 U CN204732271 U CN 204732271U
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Abstract
The utility model relates to oil-immersed power transformer, specifically, relate to a kind of integrated combination oil-immersed power transformer, comprise transformer body (1) and be positioned at high-voltage connection terminal (20) and the low-voltage wiring terminal (30) of body both sides, described high-voltage connection terminal (20) is provided with shielding separable connector external member (21); Shielding separable connector external member (21) comprises integrated retainer (6), U-shaped connector and fixed support (23), U-shaped connector comprises elbow-type cable joint (22), the other end of this U-shaped connector is connected with the high pressure casing on the top of transformer, by above-mentioned design, all insulation of whole transformer, full-shield, hermetically sealed can be realized.
Description
Technical field
The utility model relates to oil-immersed power transformer, in particular to a kind of integrated combination oil-immersed power transformer.
Background technology
Oil-immersed power transformer generally forms by the iron core in housing, housing with around the coil on iron core.The primary side (high-pressure side) of transformer draws 3 binding posts, and secondary side (low-pressure side) draws 4 binding posts.After high-pressure side wiring, all adopt silicon rubber guard shield to protect; but this protection in actual use due to wet sudden strains of a muscle of exposed joint, pollution flashover, salt fog chemical atmospheres corrosion, artificially contact, the reason such as toy or foreign material are made contact; the protective effect of all insulation can not be played power equipment, there is very large potential safety hazard.
As shown in Figure 1, the structural representation of oil-immersed power transformer in prior art.As shown in Figure 1; this power transformer comprises transformer body 1 and is positioned at high-voltage connection terminal 20 and the low-voltage wiring terminal 30 of body both sides; silicon rubber guard shield is all adopted to protect after high-pressure side wiring; but this protection in actual use due to wet sudden strains of a muscle of exposed joint, pollution flashover, salt fog chemical atmospheres corrosion, artificially contact, the reason such as toy or foreign material are made contact; the protective effect of all insulation can not be played power equipment, there is very large potential safety hazard.
Such as Authorization Notice No. is the Chinese utility model patent of CN203858951U again, it discloses a kind of oil-immersed power transformer, solve and easily occur seal leak oil phenomenon, increase maintenance cost, reduce the problem of transformer reliability, its drip irrigation device comprises fuel tank, the shunting switch being located at the lid on fuel tank and being located on lid, protection chamber is provided with in fuel tank, frame-shaped positive stop strip is provided with between fuel tank and lid, frame-shaped seal is provided with between fuel tank and positive stop strip, positive stop strip is conflicted with seal and is connected, it is trapezoidal projection that the corresponding seal side of positive stop strip is provided with some cross sections, each projection successively one winding on positive stop strip, on seal, corresponding projection is provided with and projection shape, the groove that size is suitable, each groove is successively set on seal, projection protrudes and is provided with the spur be located in seal, groove sunken inside has the depressed part be sealed and matched with spur.A kind of oil-immersed power transformer of the present utility model, is sealed and matched between positive stop strip and seal, prevents oil-immersed power transformer seal leak oil.But as can be seen from Figure of description 1, the protective cover of high-voltage connection terminal is outside exposed, the protective effect of all insulation can not be played to power equipment, there is very large potential safety hazard.
Utility model content
In order to solve the above-mentioned technological deficiency that prior art exists, the purpose of this utility model is to provide a kind of integrated combination oil-immersed power transformer, for solving, exposed joint in prior art is wet to be dodged, pollution flashover, salt fog chemical atmospheres corrosion, artificial contact, toy or foreign material such as to be made contact at the reason, the protective effect of all insulation can not be played to power equipment, there is very large potential safety hazard, shielding separable connector external member is adopted to replace original high-voltage connection terminal by high-tension side high-voltage connection terminal, can direct warm swap, be not screwed, simple and quick.
According to a kind of integrated combination oil-immersed power transformer of the present utility model, comprise transformer body, transformer body has low-pressure side and high-pressure side, high-pressure side is provided with high-voltage connection terminal, low-pressure side is provided with low-voltage wiring terminal, and described high-voltage connection terminal is provided with shielding separable connector external member.Adopt shielding separable connector external member to substitute traditional high-voltage connection terminal, make operating personnel can live line working, plug be convenient and swift, is very beneficial to and installs and maintenance; Owing to have employed the hermetic U-shaped connector external member of all insulation full-shield, so more effectively can improve insulating protection ability and the IP degree of protection of high voltage side of transformer in heavily contaminated area.
Preferably, described shielding separable connector external member comprises integrated retainer, U-shaped connector and fixed support.This elbow-type cable joint has two connectors.In real work, integrated retainer is set on high-voltage connection terminal, and elbow-type cable end is connected with integrated retainer.
In above-mentioned either a program preferably, described U-shaped connector comprises elbow-type cable end, and one end of elbow-type cable end is inserted in integrated retainer.
In above-mentioned either a program preferably, described elbow-type cable joint is fixed by fixed support.U-shaped connector is the parts with two elbow-type joints and U-shaped copper core.Adopt inserted injection moulding aborning, before by two elbow-type joint matched moulds, U-shaped copper core is put into mould, then mold-closing injection, thus by elbow-type joint and U-shaped copper core integrated injection molding, achieve all insulation of whole connector, full-shield and hermetically sealed property.
In above-mentioned either a program preferably, high pressure casing is fixed by four studs in the top of described transformer body.Be soldered on steel plate by the stud of stud welding machine by 4 M12 × 25mm in the low-pressure side of transformer.The welding technology adopted can reduce stud weld seam, is conducive to the installation of low pressure cabinet.
Stud welding machine is metallic stud or like parts, through pressurizeing instantaneously and discharging, whole end face is welded in the welding machine on workpiece.
In above-mentioned either a program preferably, the other end of described U-shaped connector is connected to the high pressure casing on the top of transformer body.
In above-mentioned either a program preferably, the on high-tension side upper right side of described transformer body is provided with oil filler point, pressure relief valve, oil level indicator, thermometer, no load switch, fuel outlet valve and earth stud.
In above-mentioned either a program preferably, described transformer body adopts three heat radiations.
In low-pressure side, low pressure casing is installed, fixed by the M12 × 25mm key screw low pressure casing of 4 on step down side, and the low pressure bottom half screw of 4 M16 × 30mm is fixed on transformer bottom channel-section steel, guarantee that low pressure casing and transformer are connected firmly; In order to eliminate stud weld seam, the installation of high-voltage switch cabinet body being affected, adopting welding procedure inside head cover of transformer, ensure that the depth of parallelism of head cover of transformer is within 2mm, ensure that the level of high-voltage switch cabinet body is installed.
In above-mentioned either a program preferably, described transformer body is provided with top cover, and this top cover adopts inner side welding procedure welding.In order to eliminate stud weld seam, the installation of high-voltage switch cabinet body being affected, adopting welding procedure inside head cover of transformer, ensure that the depth of parallelism of head cover of transformer is within 2mm, ensure that the level of high-voltage switch cabinet body is installed.
In above-mentioned either a program preferably, described low-voltage wiring terminal is connected with fuse type disconnector by copper bar.
In above-mentioned either a program preferably, with low-tension bushing on described low-voltage wiring terminal, low-voltage wiring terminal is protected.
In sum, integrated combination oil-immersed power transformer of the present utility model has the following advantages: high-voltage connection terminal is provided with shielding separable connector external member, shielding separable connector external member is adopted to substitute traditional high-voltage connection terminal, make operating personnel can live line working, plug is convenient and swift, is very beneficial to and installs and maintenance; Owing to have employed the hermetic U-shaped connector external member of all insulation full-shield, so more effectively can improve insulating protection ability and the IP degree of protection of high voltage side of transformer in heavily contaminated area; Be soldered to steel plate on by stud welding machine by the stud of 4 M12 × 25mm in the low-pressure side of transformer, the welding technology of employing can reduce stud weld seam, is conducive to the installation of low pressure cabinet; In low-pressure side, low pressure casing is installed, fixed by the M12 × 25mm key screw low pressure casing of 4 on step down side, and the low pressure bottom half screw of 4 M16 × 30mm is fixed on transformer bottom channel-section steel, guarantee that low pressure casing and transformer are connected firmly; In order to eliminate stud weld seam, the installation of high-voltage switch cabinet body being affected, adopting welding procedure inside head cover of transformer, ensure that the depth of parallelism of head cover of transformer is within 2mm, ensure that the level of high-voltage switch cabinet body is installed.
Accompanying drawing explanation
Fig. 1 is the broken away view of the jockey of prior art mesohigh leading-out terminal and transformer end of incoming cables.
Fig. 2 is the front view of the preferred embodiment according to integrated combination oil-immersed power transformer of the present utility model.
Fig. 3 is the broken away view of shielding separable connector in the preferred embodiment Fig. 2 according to integrated combination oil-immersed power transformer of the present utility model.
Fig. 4 is the left view of the preferred embodiment according to integrated combination oil-immersed power transformer of the present utility model.
Fig. 5 is the rearview of the preferred embodiment according to integrated combination oil-immersed power transformer of the present utility model.
Fig. 6 is the right view of the preferred embodiment according to integrated combination oil-immersed power transformer of the present utility model.
Attached number in the figure:
Transformer body 1, transformer box edge bolt 2, transformer hanger 3, corrugated plate 4, low-tension bushing 5, integrated retainer 6, label 7, oil filler point 8, pressure relief valve 9, oil level indicator 10, thermometer 11, no load switch 12, fuel outlet valve 13, earth stud 14.
Embodiment
The following description is only exemplary and be not to limit the disclosure, application or purposes in essence.Be further described below in conjunction with the embodiment of Figure of description to the utility model integrated combination oil-immersed power transformer.
As shown in Figure 2, according to the front view of a preferred embodiment of integrated combination oil-immersed power transformer of the present utility model.The purpose of this utility model is to provide a kind of integrated combination oil-immersed power transformer, comprise transformer body 1, transformer body 1 has low-pressure side and high-pressure side, high-pressure side is provided with high-voltage connection terminal 20, low-pressure side is provided with low-voltage wiring terminal 30, and described high-voltage connection terminal 20 is provided with shielding separable connector external member 21.Adopt shielding separable connector external member to substitute traditional high-voltage connection terminal, make operating personnel can live line working, plug be convenient and swift, is very beneficial to and installs and maintenance; Owing to have employed the hermetic U-shaped connector external member of all insulation full-shield, so more effectively can improve insulating protection ability and the IP degree of protection of high voltage side of transformer in heavily contaminated area.
Next consult shown in Fig. 3, according to the broken away view of shielding separable connector in preferred embodiment Fig. 2 for integrated combination oil-immersed power transformer of the present utility model.In the present embodiment, described shielding separable connector external member 21 comprises integrated retainer 6, elbow-type cable end 22 and fixed support 23.This elbow-type cable joint 22 has two connectors.In real work, integrated retainer 6 is set on high-voltage connection terminal 20, and elbow-type cable end 22 is connected with integrated retainer 6.
In the present embodiment, described U-shaped connector comprises elbow-type cable end 22, and one end of elbow-type cable end 22 is inserted in integrated retainer 6.
In the present embodiment, described elbow-type cable joint 22 is fixed by fixed support 23.U-shaped connector is the parts with two elbow-type joints and U-shaped copper core.Adopt inserted injection moulding aborning, before by two elbow-type joint matched moulds, U-shaped copper core is put into mould, then mold-closing injection, thus by elbow-type joint and U-shaped copper core integrated injection molding, achieve all insulation of whole connector, full-shield and hermetically sealed property.
As shown in Figure 4, according to the left view of a preferred embodiment of integrated combination oil-immersed power transformer of the present utility model.In the present embodiment, top cover is fixed along bolt 2 by transformer by the top of transformer body 1; The top of transformer body 1 is with the convenient lifting of carrying of transformer hanger 3.
In the present embodiment, high pressure casing is fixed by four studs in the top of described transformer body 1.Be soldered on steel plate by the stud of stud welding machine by 4 M12 × 25mm in the low-pressure side of transformer.The welding technology adopted can reduce stud weld seam, is conducive to the installation of low pressure cabinet.
Stud welding machine is metallic stud or like parts, through pressurizeing instantaneously and discharging, whole end face is welded in the welding machine on workpiece.
In the present embodiment, the other end of described U-shaped connector is connected to the high pressure casing on the top of transformer body 1.
As shown in Figure 5, according to the rearview of a preferred embodiment of integrated combination oil-immersed power transformer of the present utility model.
In the present embodiment, 45 corrugated plates 4 are equipped with in the side of transformer body 1, are conducive to the heat radiation of transformer; In addition, low-voltage wiring terminal 30 adds low-tension bushing 5, low-voltage wiring terminal 30 is protected.
Finally consult shown in Fig. 6, according to the right view of a preferred embodiment of integrated combination oil-immersed power transformer of the present utility model.
In the present embodiment, the on high-tension side upper right side of described transformer body 1 is provided with label 7, oil filler point 8, pressure relief valve 9, oil level indicator 10, thermometer 11, no load switch 12, fuel outlet valve 13 and earth stud 14.
In the present embodiment, described transformer body 1 adopts three heat radiations.
In the present embodiment, the low-pressure side of described transformer body 1 adopts arc stud welding to be connected to low-pressure cabinet body by stud welding machine.In low-pressure side, low pressure casing is installed, fixed by the M12 × 25mm key screw low pressure casing of 4 on step down side, and the low pressure bottom half screw of 4 M16 × 30mm is fixed on transformer bottom channel-section steel, guarantee that low pressure casing and transformer are connected firmly.
In the present embodiment, with top cover on described transformer body 1, this top cover adopts stud welding machine to weld by stud.The stud of 4 M16 × 35mm is welded with at the top of transformer.In order to eliminate stud weld seam, the installation of high-voltage switch cabinet body being affected, adopting welding procedure inside head cover of transformer, ensure that the depth of parallelism of head cover of transformer is within 2mm, ensure that the level of high-voltage switch cabinet body is installed.
In the present embodiment, described transformer body 1 is provided with top cover, and this top cover adopts inner side welding procedure welding.In order to eliminate stud weld seam, the installation of high-voltage switch cabinet body being affected, adopting welding procedure inside head cover of transformer, ensure that the depth of parallelism of head cover of transformer is within 2mm, ensure that the level of high-voltage switch cabinet body is installed.
In the present embodiment, described low-voltage wiring terminal 30 is connected with fuse type disconnector by copper bar.
In sum, integrated combination oil-immersed power transformer of the present utility model has the following advantages: high-voltage connection terminal 20 is provided with shielding separable connector external member 21, shielding separable connector external member is adopted to substitute traditional high-voltage connection terminal, make operating personnel can live line working, plug is convenient and swift, is very beneficial to and installs and maintenance; Owing to have employed the hermetic U-shaped connector external member of all insulation full-shield, so more effectively can improve insulating protection ability and the IP degree of protection of high voltage side of transformer in heavily contaminated area; Be soldered to steel plate on by stud welding machine by the stud of 4 M12 × 25mm in the low-pressure side of transformer, the welding technology of employing can reduce stud weld seam, is conducive to the installation of low pressure cabinet; In low-pressure side, low pressure casing is installed, fixed by the M12 × 25mm key screw low pressure casing of 4 on step down side, and the low pressure bottom half screw of 4 M16 × 30mm is fixed on transformer bottom channel-section steel, guarantee that low pressure casing and transformer are connected firmly; In order to eliminate stud weld seam, the installation of high-voltage switch cabinet body being affected, adopting welding procedure inside head cover of transformer, ensure that the depth of parallelism of head cover of transformer is within 2mm, ensure that the level of high-voltage switch cabinet body is installed.
It will be apparent to those skilled in the art that integrated combination oil-immersed power transformer of the present utility model comprises the combination in any of each several part in this specification.As space is limited and in order to make specification simple and clear, these combinations are not introduced one by one in detail at this, but after having seen this specification, the scope of the present utility model that the combination in any of each several part be made up of this specification is formed is self-evident.
Claims (11)
1. an integrated combination oil-immersed power transformer, comprises transformer body (1), and transformer body (1) has low-pressure side and high-pressure side, and high-pressure side is provided with high-voltage connection terminal (20); Low-pressure side is provided with low-voltage wiring terminal (30), it is characterized in that: high-voltage connection terminal (20) is provided with shielding separable connector external member (21).
2. integrated combination oil-immersed power transformer as claimed in claim 1, is characterized in that: shielding separable connector external member (21) comprises integrated retainer (6), U-shaped connector and fixed support (23).
3. integrated combination oil-immersed power transformer as claimed in claim 2, is characterized in that: described U-shaped connector comprises elbow-type cable end (22), and one end of elbow-type cable end (22) is inserted in integrated retainer (6).
4. integrated combination oil-immersed power transformer as claimed in claim 2, is characterized in that: elbow-type cable joint (22) is fixed by fixed support (23).
5. integrated combination oil-immersed power transformer as claimed in claim 1, is characterized in that: high pressure casing is fixed by four studs in the top of transformer body (1).
6. integrated combination oil-immersed power transformer as claimed in claim 4, is characterized in that: the other end of described U-shaped connector is connected to the high pressure casing on the top of transformer body (1).
7. integrated combination oil-immersed power transformer as claimed in claim 1, is characterized in that: the on high-tension side upper right side of transformer body (1) is provided with oil filler point (8), pressure relief valve (9), oil level indicator (10), thermometer (11), no load switch (12), fuel outlet valve (13) and earth stud (14).
8. integrated combination oil-immersed power transformer as claimed in claim 1, is characterized in that: transformer body (1) adopts three heat radiations.
9. integrated combination oil-immersed power transformer as claimed in claim 1, is characterized in that: transformer body (1) is provided with top cover, and this top cover adopts inner side welding procedure welding.
10. integrated combination oil-immersed power transformer as claimed in claim 1, is characterized in that: low-voltage wiring terminal (30) is connected with fuse type disconnector by copper bar.
11. integrated combination oil-immersed power transformers as claimed in claim 1, is characterized in that: with low-tension bushing (5) on low-voltage wiring terminal (30).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520289216.4U CN204732271U (en) | 2015-05-06 | 2015-05-06 | Integrated combination oil-immersed power transformer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520289216.4U CN204732271U (en) | 2015-05-06 | 2015-05-06 | Integrated combination oil-immersed power transformer |
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| CN204732271U true CN204732271U (en) | 2015-10-28 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105469944A (en) * | 2016-01-15 | 2016-04-06 | 江苏省电力公司张家港市供电公司 | Pole-mounted transformer |
| CN106099827A (en) * | 2016-08-24 | 2016-11-09 | 浙江新沃电气有限公司 | Complete thread guide devices in a kind of 10KV transformer platform area and preparation method thereof |
| CN106159678A (en) * | 2016-08-10 | 2016-11-23 | 国网浙江东阳市供电公司 | Modified model 10kV American Unit Substation with eyes through hole |
| CN106159767A (en) * | 2016-08-10 | 2016-11-23 | 国网浙江东阳市供电公司 | Modified model 10kV American Unit Substation with simple eye through hole |
| CN106159768A (en) * | 2016-08-10 | 2016-11-23 | 国网浙江东阳市供电公司 | Modified model 10kV American Unit Substation with simple eye through hole and protective cover |
| CN106207820A (en) * | 2016-08-10 | 2016-12-07 | 国网浙江东阳市供电公司 | Modified model 10kV American Unit Substation with eyes through hole and protective cover |
-
2015
- 2015-05-06 CN CN201520289216.4U patent/CN204732271U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105469944A (en) * | 2016-01-15 | 2016-04-06 | 江苏省电力公司张家港市供电公司 | Pole-mounted transformer |
| CN106159678A (en) * | 2016-08-10 | 2016-11-23 | 国网浙江东阳市供电公司 | Modified model 10kV American Unit Substation with eyes through hole |
| CN106159767A (en) * | 2016-08-10 | 2016-11-23 | 国网浙江东阳市供电公司 | Modified model 10kV American Unit Substation with simple eye through hole |
| CN106159768A (en) * | 2016-08-10 | 2016-11-23 | 国网浙江东阳市供电公司 | Modified model 10kV American Unit Substation with simple eye through hole and protective cover |
| CN106207820A (en) * | 2016-08-10 | 2016-12-07 | 国网浙江东阳市供电公司 | Modified model 10kV American Unit Substation with eyes through hole and protective cover |
| CN106099827A (en) * | 2016-08-24 | 2016-11-09 | 浙江新沃电气有限公司 | Complete thread guide devices in a kind of 10KV transformer platform area and preparation method thereof |
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