CN207038317U - A kind of oil-immersed transformer high-voltage coils - Google Patents
A kind of oil-immersed transformer high-voltage coils Download PDFInfo
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- CN207038317U CN207038317U CN201720526441.4U CN201720526441U CN207038317U CN 207038317 U CN207038317 U CN 207038317U CN 201720526441 U CN201720526441 U CN 201720526441U CN 207038317 U CN207038317 U CN 207038317U
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Abstract
The utility model belongs to oil-filled transformer field, it is related to a kind of oil-immersed transformer high-voltage coils, it is the sandwich construction formed by high-voltage conducting wires coiling, innermost layer wire is wound on insulation cardboard cylinder, brushed with dipping enamelled coating on the outside of the insulation cardboard cylinder, the start-up portion and tail portion of each layer conductor are surrounded by end insulation, and layer insulation paper is lined between adjacent two layers wire;Coil inside is provided with oil duct stay, and oil duct is formed between adjacent two oil duct stays, layer insulation paper is lined between oil duct stay inner side and wire, and brushed with dipping enamelled coating, oil duct stay outside, which is brushed with, impregnates enamelled coating in the outside of the layer insulation paper.The utility model effectively meets at this stage runnability stability requirement during to grid stability, power supply quality, user power utilization quality and Transformer high-tension line catastrophic failure;Effectively extend transformer life, improve each phase performance of Transformer.
Description
Technical field
The invention belongs to oil-filled transformer field, is related to a kind of oil-immersed transformer high-voltage coils.
Background technology
At this stage, transformer station high-voltage side bus mid & low-voltage line catastrophic failure is frequent, and low-voltage circuit catastrophic failure must cause low-voltage line
Loop current increased dramatically, and cause low-voltage line loop pillar to be increased to stress, so as to cause high-voltage line loop pillar to be increased to stress and radial load,
Cause inside transformer by acute big stress deformation damage until transformer is damaged.For meet at this stage to grid stability,
The runnability stability requirement of power supply quality, user power utilization quality and transformer station high-voltage side bus mid & low-voltage line catastrophic failure.Spy's research and development
A kind of winding method of transformer high-voltage coil.
The content of the invention
The present invention is to make up the deficiencies in the prior art, there is provided long, the easy to operate oil immersion of a kind of sound construction, service life
Formula transformer high-voltage coil.
The present invention is realized by following technical method:
The oil-immersed transformer high-voltage coils of the present invention, it is characterised in that:It is the multilayer formed by high-voltage conducting wires coiling
Structure, innermost layer wire are wound on insulation cardboard cylinder, brushed with dipping enamelled coating, the starting of each layer conductor on the outside of the insulation cardboard cylinder
Part and tail portion are surrounded by end insulation, and layer insulation paper is lined between adjacent two layers wire;Coil inside is provided with oil duct support
Bar, oil duct is formed between adjacent two oil duct stays, is lined with layer insulation paper between wire on the inside of oil duct stay, the interlayer is exhausted
The outside of edge paper is brushed with dipping enamelled coating, and oil duct stay outside, which is brushed with, impregnates enamelled coating, being also lined between wire on the outside of oil duct stay
Layer insulation paper, the outside of the layer insulation paper is brushed with dipping enamelled coating;High-tension coil outermost layer adds bag insulation cardboard cylinder;Insulation is hard
Wrapping with is tied with outside paper web.
Floor height pressure conductive line surfaces second from the bottom are most with layer last brushed with dipping enamelled coating, sub-high pressure wire second from the bottom
Two layers of layer insulation paper, layer insulation paper outer surface brush dipping enamelled coating are lined between outer layer high-voltage conducting wires.
Oil duct stay is installed respectively at 1/3rd of coil thickness and 3/4ths.
The lead of high-voltage conducting wires, which is lifted one's head, to be arranged at the endoporus of coil.
High-tension coil outermost layer adds the thick insulation cardboard cylinders of bag 0.5mm.
The beneficial effects of the invention are as follows:Winding method is simple to operate, effectively extends transformer life, improves transformer station high-voltage side bus
In properties.Meet at this stage to grid stability, power supply quality, user power utilization quality and Transformer low-voltage line
Runnability stability requirement during the catastrophic failure of road.
Brief description of the drawings
Fig. 1 is the front view schematic diagram of the present invention, and Fig. 2 is Fig. 1 top view illustration.
In figure, 1 lead is lifted one's head, 2 oil ducts, 3 high-voltage conducting wires, 4 lacquer coats, 5 insulating paper cylinders, the insulation of 6 ends, 7 layer insulation paper,
8 oil duct stays.
Embodiment
Accompanying drawing is a kind of specific embodiment of the invention.
The oil-immersed transformer high-voltage coils of the present invention, it is the sandwich construction formed by the coiling of high-voltage conducting wires 3, innermost layer
Wire is wound on insulation cardboard cylinder 5, brushed with dipping enamelled coating, the start-up portion of each layer conductor and end on the outside of the insulation cardboard cylinder
Part is surrounded by end insulation 6, and layer insulation paper is lined between adjacent two layers wire;Coil inside is provided with oil duct stay 8, and adjacent two
Oil duct 2 is formed between root oil duct stay, layer insulation paper 7 is lined between wire on the inside of oil duct stay, the layer insulation paper
Outside is brushed with dipping enamelled coating 4, and dipping enamelled coating is brushed with the outside of oil duct stay, and it is exhausted to be also lined with interlayer between oil duct stay outside and wire
Edge paper 7, the outside of the layer insulation paper is brushed with dipping enamelled coating;High-tension coil outermost layer adds the thick insulation cardboard cylinders of bag 0.5mm;Absolutely
Wrapping with is tied with outside edge cardboard cylinder.
Floor height pressure conductive line surfaces second from the bottom are most with layer last brushed with dipping enamelled coating, sub-high pressure wire second from the bottom
Two layers of layer insulation paper, layer insulation paper outer surface brush dipping enamelled coating are lined between outer layer high-voltage conducting wires.
Oil duct stay is installed respectively at 1/3rd of coil thickness and 3/4ths.
The lead of high-voltage conducting wires, which is lifted one's head, 1 to be arranged at the endoporus of coil.
Oil duct stay 8 is arranged on inside high-tension coil by oil passage stripe fixed plate.
The oil-immersed transformer high-voltage coils winding method of the present invention, comprises the following steps:
(1):Suitable high-voltage conducting wires, the cardboard cylinder processed and oil duct molding part are selected before high-tension coil coiling;Hard
Impregnating varnish is uniformly brushed on paper web(Model:1038).
(2):First add end insulation on the cardboard cylinder for brush impregnating varnish, then coiling high-voltage conducting wires, this layer conductor end add
End insulation.Change layer to start, first plus layer insulation paper adds end to insulate again, this layer conductor of beginning coiling, in this layer conductor coiling
End adds end to insulate, and then changes layer, in this approach around making high-tension coil;
(3):During high-voltage conducting wires coiling to oiling channel layer, one is added after the uniform mopping in high-voltage conducting wires surface that this layer is wound
Insulating paper between layer by layer, added this from level to level between insulating paper surface uniformly brush oiling road molding part after paint, add it is good after oil
The uniform mopping in road surface, brush paint oil duct surface add from level to level again between insulating paper, oil duct surface add this from level to level between insulate
The uniform mopping in paper surface, then first plus end insulation, then high-voltage conducting wires be wound on this from level to level between on insulating paper, wire end adds
End insulation, changes layer.During high-voltage conducting wires coiling to oiling channel layer, i.e., add respectively at 1/3rd of coil thickness and at 3/4ths
One layer of oil duct molding part, form inside and outside two layers oil duct.
(4):When continuing at coiling to layer second from the bottom, the floor height second from the bottom pressure conductive line surfaces wound are uniformly brushed
Paint, then spreads two layers of layer insulation paper, then in two layers of the layer insulation paper surface mopping completed, then first plus good end insulation,
Last layer of high-voltage conducting wires are wound on again the layer insulation paper surface for brushing paint, wire end adds end to insulate.
(5):The high-tension coil outermost layer wound adds the thick insulation cardboard cylinders processed of bag 0.5mm, is finally adding bag
Binder, i.e. tape are stamped outside cardboard cylinder thick 0.5mm.
Claims (5)
- A kind of 1. oil-immersed transformer high-voltage coils, it is characterised in that:It is by high-voltage conducting wires(3)The multilayer knot that coiling forms Structure, innermost layer wire are wound on insulation cardboard cylinder(5)On, risen on the outside of the insulation cardboard cylinder brushed with dipping enamelled coating, each layer conductor Initial portion and tail portion are surrounded by end insulation(6), layer insulation paper is lined between adjacent two layers wire;Coil inside is provided with oil Road stay, oil duct is formed between adjacent two oil duct stays(2), layer insulation paper is lined between oil duct stay inner side and wire (7), the outside of the layer insulation paper is brushed with dipping enamelled coating(4), brushed with dipping enamelled coating on the outside of oil duct stay, on the outside of oil duct stay with Also layer insulation paper is lined between wire(7), the outside of the layer insulation paper is brushed with dipping enamelled coating;High-tension coil outermost layer adds bag Insulate cardboard cylinder;Wrapping with is tied with outside insulation cardboard cylinder.
- 2. oil-immersed transformer high-voltage coils according to claim 1, it is characterised in that:Floor height second from the bottom presses wire table Brushed with dipping enamelled coating, sub-high pressure wire second from the bottom and layer last are to be lined with two layers of interlayer between outermost layer high-voltage conducting wires in face Insulating paper, layer insulation paper outer surface brush dipping enamelled coating.
- 3. oil-immersed transformer high-voltage coils according to claim 1, it is characterised in that:1/3rd of coil thickness With 3/4ths at oil duct stay is installed respectively.
- 4. oil-immersed transformer high-voltage coils according to claim 1, it is characterised in that:The lead of high-voltage conducting wires is lifted one's head (1)It is arranged at the endoporus of coil.
- 5. oil-immersed transformer high-voltage coils according to claim 1, it is characterised in that:High-tension coil outermost layer adds bag Insulation cardboard cylinder thick 0.5mm.
Priority Applications (1)
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CN201720526441.4U CN207038317U (en) | 2017-05-12 | 2017-05-12 | A kind of oil-immersed transformer high-voltage coils |
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CN201720526441.4U CN207038317U (en) | 2017-05-12 | 2017-05-12 | A kind of oil-immersed transformer high-voltage coils |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107026006A (en) * | 2017-05-12 | 2017-08-08 | 山东驰翔电气有限公司 | A kind of oil-immersed transformer high-voltage coils and its winding method |
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2017
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107026006A (en) * | 2017-05-12 | 2017-08-08 | 山东驰翔电气有限公司 | A kind of oil-immersed transformer high-voltage coils and its winding method |
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Address after: 274200, Shandong province Heze County Chengwu eastern suburbs Industrial Park Patentee after: Shandong Dachi Chixiang Electric Co., Ltd. Address before: 274200 South of Xiannongtan Street, Chengwu County, Heze City, Shandong Province Patentee before: Shandong Chi Xiang Electric Applicance Co., Ltd |