CN104157448A - Assembling structure of high-voltage leads of oil-immersed transformer - Google Patents
Assembling structure of high-voltage leads of oil-immersed transformer Download PDFInfo
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- CN104157448A CN104157448A CN201410425982.9A CN201410425982A CN104157448A CN 104157448 A CN104157448 A CN 104157448A CN 201410425982 A CN201410425982 A CN 201410425982A CN 104157448 A CN104157448 A CN 104157448A
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- lead
- wire
- oil
- leads
- sleeve pipe
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Abstract
The invention discloses an assembling structure of high-voltage leads of an oil-immersed transformer. The assembling structure comprises a box cover and tapping leads, lead casing pipe seats are arranged on the box cover, lead casing pipes are arranged in the lead casing pipe seats, and the heads of the upper ends of the tapping leads with insulation layers removed stretch into the lead casing pipes and are firmly pressed in the lead casing pipes. The lower ends of the tapping leads and coil outlet leads of the transformer are welded together, and the outer sides of the welding positions are sleeved with sylphons. The tapping leads can be assembled through pressing of the tapping leads and the tapping switch lead casing pipes, the switch structure is simplified, cost is lowered, and work efficiency is improved.
Description
Technical field
The invention belongs to transformer manufacture technology, relate to a kind of assembly structure of oil-filled transformer high-voltage connection.
Background technology
The high-voltage connection of tradition oil immersed type small capacity transformer is made assembling as shown in Fig. 1-1 and Fig. 1-2.In Fig. 1-1,11-off circuit tap changer, 12-bushing, 13-case lid, 14-tap lead, 15-tri-phase terminals, 16-high pressure wood clamp part, 17-lead-in wire binding strap, 18-high pressure upper clamping piece, 19-transformer body.Structure as shown in I enlarged drawing in Fig. 1-3, winding protruding head lead-in wire 23 and tap lead 14 overlap weldings, 24 be welding position, outsourcing crimped paper 22, to appointed thickness, is then fastened with tape 21 half laps in outside, then fixes with the binding strap that goes between; Each phase terminal clamps by high pressure wood clamp part, more fixing on high pressure upper clamping piece; Three phase terminals are directly drawn bushing, and tap lead fixedly completes assembling on off circuit tap changer by bolt, and sleeve pipe and off circuit tap changer are installed on case lid; This structure proves feasible through utilization for many years.But along with the increasing of current batch output, the shortening of production cycle, the shortcoming of this structure just displays: winding protruding head lead-in wire need to be wrapped up appointed thickness with crimped paper after welding with tap lead, then is wound around one deck with tape half lap; Tap lead need to be lifted one's head every lead-in wire with connecting of switch that loop in position or sealing wire nose, then compresses with bolt; This twice work step needs a large amount of manual operationss, and one is difficult to ensure the reliability of wrapping assembling, and it two has greatly limited work efficiency, has not met the needs of modernization large-scale production.
Summary of the invention
The problem existing in order to overcome prior art, the object of this invention is to provide a kind of assembly structure of oil-filled transformer high-voltage connection, the present invention can realize the assembling of tap lead by the compacting of tap lead and shunting switch lead-in wire sleeve pipe, simplify construction of switch, reduce cost, improved work efficiency.
Object of the present invention is achieved through the following technical solutions:
A kind of assembly structure of oil-filled transformer high-voltage connection, comprise case lid and tap lead, it is characterized in that: on case lid, be provided with lead-in wire casing seat, in lead-in wire casing seat, be provided with lead-in wire sleeve pipe, the tap lead upper end head of removing insulating barrier part stretches in lead-in wire sleeve pipe and is compressed on securely in lead-in wire sleeve pipe; Together with the winding protruding head wire bonds of the lower end of tap lead and transformer, be set with bellows in outside, welding position.
In the present invention, remove insulating barrier part length identical with the length of the sleeve pipe that goes between.The length of bellows and the scope of welding position are suitable, and cover welding position.
The invention has the advantages that: 1, can realize the assembling of tap lead by the compacting of tap lead and shunting switch lead-in wire sleeve pipe, simplify construction of switch, reduce purchase cost.2, realize the winding of crimped paper and tape by the parcel of bellows, improved work efficiency.3, met by the oil clearance insulation of crimped paper and the outsourcing insulation of tap lead the electric insulation requirement going between, saved high pressure wood clamp part, saved cost, improved work efficiency.
Validity of the present invention is good, reliability is high, solve conventional wire completely and made reliability deficiency in assembling, the shortcoming that work efficiency is low, reach that modernization is extensive, the needs of intensive production, simultaneously because the saving of the simplification of a large amount of structures, material has also met the national requirement that has proposed to build economizing type, energy-saving product.
Brief description of the drawings
Fig. 1-1st, the high-voltage connection assembling schematic diagram of traditional oil immersed type small capacity transformer;
Fig. 1-2 is the schematic side view of Fig. 1-1;
Fig. 1-3rd, I place enlarged drawing in Fig. 1-2;
Fig. 2-1st, high-voltage connection assembling schematic diagram of the present invention;
Fig. 2-2nd, the schematic side view of Fig. 2-1;
Fig. 2-3rd, I place enlarged drawing in Fig. 2-2;
II place enlarged drawing in Fig. 2-2, Fig. 2-4.
Embodiment
A kind of assembly structure of oil-filled transformer high-voltage connection, comprise case lid 3 and tap lead 4, on case lid, be provided with lead-in wire casing seat 41, in lead-in wire casing seat, be provided with lead-in wire sleeve pipe 42, the tap lead upper end head of removing insulating barrier part stretches in lead-in wire sleeve pipe and is compressed on securely in lead-in wire sleeve pipe; Remove insulating barrier part length identical with the length of the sleeve pipe that goes between.The lower end of tap lead and the winding protruding head of transformer lead-in wire 47 weld together, and are set with bellows 45 in 46 outsides, welding position.The scope of the length of bellows and welding position 46 is suitable, and covers welding position.
Fig. 2-1st, high-voltage connection assembling schematic diagram of the present invention; In Fig. 2-1,1-off circuit tap changer, 2-bushing, 3-case lid, 4-tap lead, 5-tri-phase terminals, 7-lead-in wire binding strap, 8-high pressure upper clamping piece, 9-transformer body.
This Standard process is as follows:
1, the tap lead of designated length is removed to head lead wire insulation layer.The 43 lead wire insulation layers for reservation.
2, tap lead is inserted in the lead-in wire sleeve pipe 42 of the switch of colding pressing.
3, with cold press device, tap lead is compressed in lead-in wire sleeve pipe securely, compacting position is as shown in II enlarged drawing in Fig. 2-4, and 44 is two compacting positions, place.On each tap lead, be inserted in the bellows of a Len req, for subsequent use.Above three steps and completed tap lead and assembling without field switch.
4, winding protruding head lead-in wire 47 and tap lead overlap welding; 46 is welding position.
5, the bellows 45 being inserted in advance on tap lead is left behind, cover wire bonds position, structure is as shown in I enlarged drawing in Fig. 2-3, finally fixing with lead-in wire binding strap 7.Completed the making assembling process of high-voltage connection by above five work steps.
The present invention can realize the assembling of tap lead by the compacting of tap lead and shunting switch lead-in wire sleeve pipe, simplified construction of switch, has reduced purchase cost.Realize the winding of crimped paper and tape by the parcel of bellows, improved work efficiency.Meet by the oil clearance insulation of crimped paper and the outsourcing insulation of tap lead the electric insulation requirement going between, saved high pressure wood clamp part, saved cost, improved work efficiency.
Claims (3)
1. the assembly structure of an oil-filled transformer high-voltage connection, comprise case lid (3) and tap lead (4), it is characterized in that: on case lid (3), be provided with lead-in wire casing seat (41), in lead-in wire casing seat (41), be provided with lead-in wire sleeve pipe (42), tap lead (4) the upper end head of removing insulating barrier part stretches in lead-in wire sleeve pipe (42) and is compressed on securely in lead-in wire sleeve pipe (42); The lower end of tap lead (4) and the winding protruding head of transformer lead-in wire (47) weld together, and in welding position, (46) outside is set with bellows (45).
2. the assembly structure of oil-filled transformer high-voltage connection according to claim 1, is characterized in that: remove insulating barrier part length identical with the length of the sleeve pipe (42) that goes between.
3. the assembly structure of oil-filled transformer high-voltage connection according to claim 1, is characterized in that: the scope of the length of bellows (45) and welding position (46) is suitable, and covers welding position (46).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410425982.9A CN104157448A (en) | 2014-08-26 | 2014-08-26 | Assembling structure of high-voltage leads of oil-immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410425982.9A CN104157448A (en) | 2014-08-26 | 2014-08-26 | Assembling structure of high-voltage leads of oil-immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104157448A true CN104157448A (en) | 2014-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410425982.9A Pending CN104157448A (en) | 2014-08-26 | 2014-08-26 | Assembling structure of high-voltage leads of oil-immersed transformer |
Country Status (1)
| Country | Link |
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| CN (1) | CN104157448A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107705972A (en) * | 2017-11-16 | 2018-02-16 | 国家电网公司 | Transformer lead assembling structure and its assembly method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203218083U (en) * | 2013-04-11 | 2013-09-25 | 湖北华耀达电气有限公司 | High-voltage lead of oil-immersed transformer |
| CN203444942U (en) * | 2013-08-21 | 2014-02-19 | 江苏宏源电气有限责任公司 | High-voltage lead fixing structure of oil-immersed type distribution transformer |
| CN203536184U (en) * | 2013-10-31 | 2014-04-09 | 山东华驰变压器股份有限公司 | Epoxy resin lead clamping plates for high voltage leads of oil-immersed transformer |
| CN203733583U (en) * | 2014-03-03 | 2014-07-23 | 山东华驰变压器股份有限公司 | Fixing structure for high-voltage leads of oil-immersed distribution transformers |
| CN204011060U (en) * | 2014-08-26 | 2014-12-10 | 镇江天力变压器有限公司 | A kind of assembly structure of oil-filled transformer high-voltage connection |
-
2014
- 2014-08-26 CN CN201410425982.9A patent/CN104157448A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203218083U (en) * | 2013-04-11 | 2013-09-25 | 湖北华耀达电气有限公司 | High-voltage lead of oil-immersed transformer |
| CN203444942U (en) * | 2013-08-21 | 2014-02-19 | 江苏宏源电气有限责任公司 | High-voltage lead fixing structure of oil-immersed type distribution transformer |
| CN203536184U (en) * | 2013-10-31 | 2014-04-09 | 山东华驰变压器股份有限公司 | Epoxy resin lead clamping plates for high voltage leads of oil-immersed transformer |
| CN203733583U (en) * | 2014-03-03 | 2014-07-23 | 山东华驰变压器股份有限公司 | Fixing structure for high-voltage leads of oil-immersed distribution transformers |
| CN204011060U (en) * | 2014-08-26 | 2014-12-10 | 镇江天力变压器有限公司 | A kind of assembly structure of oil-filled transformer high-voltage connection |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107705972A (en) * | 2017-11-16 | 2018-02-16 | 国家电网公司 | Transformer lead assembling structure and its assembly method |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141119 |
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| WD01 | Invention patent application deemed withdrawn after publication |