CN208796791U

CN208796791U - Extra-high voltage direct-current inner shield composite conductor

Info

Publication number: CN208796791U
Application number: CN201821400499.5U
Authority: CN
Inventors: 陈均平; 迈克·霍恩; 李翔
Original assignee: ASTA Elektrodraht GmbH
Current assignee: ASTA Elektrodraht GmbH
Priority date: 2018-08-29
Filing date: 2018-08-29
Publication date: 2019-04-26
Anticipated expiration: 2028-08-29

Abstract

The utility model discloses a kind of extra-high voltage direct-current inner shield composite conductors, including conducting wire group, transverse shielding line and longitudinal shielding line, two groups of conducting wire groups are respectively arranged at the top and bottom of transverse shielding line, longitudinal shielding line is provided between two groups of conducting wire groups at the top of transverse shielding line, longitudinal shielding line is provided between two groups of conducting wire groups of transverse shielding line bottom, in conducting wire group, the periphery of transverse shielding line and longitudinal shielding line is surrounded with full packaged insulation materials paper layer, conducting wire group includes several enameled wires being stacked, and insulating paper layer is surrounded in the periphery of several enameled wires；The utility model effectively reduces the insulation thickness of composite conductor, and then reduce volume of transformer, reduce manufacturing cost, it is easy to coil winding, improve production efficiency, suitable for extra-high voltage direct-current transformer or the high-tension coil of converter power transformer, the influence of voltage and short circuit to converter power transformer is avoided, converter power transformer is made to have the characteristics that impact resistance, resistance to over-voltage and short-circuit proof.

Description

Extra-high voltage direct-current inner shield composite conductor

Technical field

The utility model relates to a kind of composite conductor more particularly to a kind of extra-high voltage direct-current inner shield composite conductors, belong to Lead technology field.

Background technique

Extra-high voltage direct-current refers to the direct current transportation and the relevant technologies of ± 800kV and above, and extra-high voltage direct-current is defeated Electricity is mainly characterized by that transmission capacity is big, voltage is high, can be used for the asynchronous networking of electric system, extra-high voltage DC transmission system by Five sending end AC system, converting plant, DC power transmission line, Inverter Station, receiving end AC system parts are constituted, most important one It is converter station, and the heart change of current of converter station change is the most important thing of entire DC transmission system；Direct current transportation is by alternating current It is transformed into direct current by inverter, then sent by DC power transmission line to receiving end and alternating current is become by inverter, Finally injection AC network, relatively for ac transmission, direct current transportation has conveying is flexible, loss is small, can save transmission of electricity to walk Corridor can be realized the advantages that quick control, and composite conductor used in the coil of commutator transformer or converter power transformer is exhausted at present Edge thickness is big, causes volume of transformer big, and manufacturing cost is high, and is not easy to coil winding, and production efficiency is low, and existing group It is larger by voltage and Effect of Short Circuit to close converter power transformer made of conducting wire.

Summary of the invention

To solve the deficiencies in the prior art, the utility model provides a kind of extra-high voltage direct-current inner shield composite conductor, makes group The insulation thickness for closing conducting wire effectively reduces, and then reduces volume of transformer, reduces manufacturing cost, is easy to coil winding, improves life Efficiency is produced, suitable for extra-high voltage direct-current transformer or the high-tension coil of converter power transformer, avoids voltage and short circuit exchange rheology The influence of depressor makes converter power transformer have the characteristics that impact resistance, resistance to over-voltage and short-circuit proof, ensure that transformer and supply network Normal operation.

The technology employed by the present utility model is

Extra-high voltage direct-current inner shield composite conductor, including conducting wire group, transverse shielding line and longitudinal shielding line, the laterally screen It covers and is respectively arranged with two groups of conducting wire groups at the top and bottom of line, be provided between two groups of conducting wire groups at the top of transverse shielding line Longitudinal shielding line is provided with longitudinal shielding line between two groups of conducting wire groups of transverse shielding line bottom, in conducting wire group, laterally screen The periphery for covering line and longitudinal shielding line is surrounded with full packaged insulation materials paper layer, and the conducting wire group includes several enamel-covers being stacked Line, and insulating paper layer is surrounded in the periphery of several enameled wires.

As the further preferred of the utility model, the transverse shielding line and longitudinal shielding line are bare copper flat wires, and Insulating paper layer is surrounded in the periphery of bare copper flat wire；Raising transverse shielding line and longitudinal shielding line are whole each after combining with conducting wire group The stability of item electric property.

Two groups of conducting wire groups and longitudinal shielding line as the further preferred of the utility model, at the top of transverse shielding line It is connected by being pasted at the top of insulation adhered layer and transverse shielding line, two groups of conducting wire groups and longitudinal screen positioned at transverse shielding line bottom It covers line and connection is pasted by insulation adhered layer and transverse shielding line bottom；Prevent conducting wire group at the top and bottom of transverse shielding line and Longitudinal shielding line avoids the integrally-built deformation of composite conductor because of opposite frictional movement caused by external force.

As the further preferred of the utility model, the insulation adhered layer includes basal layer, the basal layer it is upper Surface and lower surface are uniformly coated with the epoxide-resin glue with stickup effect；Improve the sticking strength of insulation adhered layer.

As the further preferred of the utility model, the basal layer is the insulating paper of 0.5mm thickness, realizes and is guaranteeing to glue The thickness of insulation adhered layer is effectively reduced while pasting intensity.

As the further preferred of the utility model, the height of conducting wire group is equal to the height of longitudinal shielding line；Two conducting wires The sum of group and the width of longitudinal shielding line are equal to the width of transverse shielding line；The global sections of composite conductor are made to constitute a square Shape is easy to coil winding.

It is wrapped in the periphery of conducting wire group, transverse shielding line and longitudinal shielding line as the further preferred of the utility model There is two layers of full packaged insulation materials paper layer, the winding direction of two layers of full packaged insulation materials paper layer is opposite；Improve the safety of composite conductor.

Shielding line is arranged inside composite conductor with cross-shaped structure the utility model has the beneficial effects that: using, The insulation thickness for reducing shielding line and conducting wire group, effectively reduces the integral insulation thickness of composite conductor, and then reduces transformer The radial size of coil, reduce volume of transformer, reduce the weight of transformer, be easy to coil winding, save coil around Time processed improves production efficiency, and then reduces manufacturing cost, suitable for extra-high voltage direct-current transformer or the height of converter power transformer Crimping circle avoids the influence to converter power transformer of voltage and short circuit, and converter power transformer is made to have impact resistance, resistance to over-voltage and resistance to short The characteristics of road, ensure that the normal operation of transformer and supply network.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the structural schematic diagram of the utility model insulation adhered layer；

Main appended drawing reference meaning is as follows in figure:

1- transverse shielding line, the longitudinal direction 2- shielding line, 3- enameled wire, 4- full packaged insulation materials paper layer, 5- insulation adhered layer, the basis 6- Layer, 7- epoxide-resin glue.

Specific embodiment

Specific introduction is done to the utility model with reference to the accompanying drawings and examples.

As illustrated in fig. 1 and 2: the present embodiment is a kind of extra-high voltage direct-current inner shield composite conductor, including conducting wire group, lateral screen Line 1 and longitudinal shielding line 2 are covered, the top and bottom of transverse shielding line 1 are respectively arranged with two groups of conducting wire groups, are located at transverse shielding line It is provided with longitudinal shielding line 2 between two groups of conducting wire groups at 1 top, is set between two groups of conducting wire groups of 1 bottom of transverse shielding line It is equipped with longitudinal shielding line 2, full packaged insulation materials paper layer 4 is surrounded in the periphery of conducting wire group, transverse shielding line 1 and longitudinal shielding line 2, leads Line group includes several enameled wires 3 being stacked, and is surrounded with insulating paper layer in the periphery of several enameled wires 3；This implementation Each conducting wire group includes five enameled wires 3 being stacked in example.

In the present embodiment, transverse shielding line 1 and longitudinal shielding line 2 are bare copper flat wires, and wrapped in the periphery of bare copper flat wire There is insulating paper layer；The stabilization of raising transverse shielding line 1 and longitudinal shielding line 2 whole every electric property after being combined with conducting wire group Property.

In the present embodiment, pass through insulation adhered layer positioned at two groups of conducting wire groups at 1 top of transverse shielding line and longitudinal shielding line 2 5 connect with stickup at the top of transverse shielding line 1, pass through absolutely positioned at two groups of conducting wire groups of 1 bottom of transverse shielding line and longitudinal shielding line 2 Edge adhered layer 5 and 1 bottom of transverse shielding line, which are pasted, to be connected；Prevent the conducting wire group and longitudinal direction screen of 1 top and bottom of transverse shielding line Line 2 is covered because of opposite frictional movement caused by external force, avoids the integrally-built deformation of composite conductor.

In the present embodiment, insulation adhered layer 5 includes basal layer 6, and the upper and lower surfaces of basal layer 6 are uniformly coated with tool The epoxide-resin glue 7 for thering is stickup to act on；Improve the sticking strength of insulation adhered layer 5.

Basal layer 6 in the present embodiment is the insulating paper of 0.5mm thickness, and realization is effectively reduced while guaranteeing sticking strength The thickness of insulation adhered layer 5.

In the present embodiment, the height of conducting wire group is equal to the height of longitudinal shielding line 2；Two conducting wire groups and longitudinal shielding line 2 The sum of width be equal to the width of transverse shielding line 1；Make composite conductor global sections constitute a rectangle, be easy to coil around System.

In the present embodiment, two layers of full packaged insulation materials is surrounded in the periphery of conducting wire group, transverse shielding line 1 and longitudinal shielding line 2 The winding direction of paper layer 4, two layers of full packaged insulation materials paper layer 4 is opposite；Improve the safety of composite conductor.

The utility model uses, and shielding line is arranged inside composite conductor with cross-shaped structure, reduces shielding line and conducting wire The insulation thickness of group, effectively reduces the integral insulation thickness of composite conductor, and then reduces the radial size of transformer coil, contracting Small transformers volume reduces the weight of transformer, is easy to coil winding, saves the coiling time of coil, improves production Efficiency, and then reduce manufacturing cost and avoid voltage suitable for extra-high voltage direct-current transformer or the high-tension coil of converter power transformer Influence with short circuit to converter power transformer makes converter power transformer have the characteristics that impact resistance, resistance to over-voltage and short-circuit proof, ensure that change The normal operation of depressor and supply network.

The above is only the preferred embodiment of the utility model patent, it is noted that for the general of the art For logical technical staff, under the premise of not departing from the utility model patent principle, several improvements and modifications can also be made, this A little improvements and modifications also should be regarded as the protection scope of the utility model patent.

Claims

1. extra-high voltage direct-current inner shield composite conductor, it is characterised in that: including conducting wire group, transverse shielding line and longitudinal shielding line, Two groups of conducting wire groups are respectively arranged at the top and bottom of the transverse shielding line, two groups of conducting wire groups at the top of transverse shielding line Between be provided with longitudinal shielding line, be provided with longitudinal shielding line between two groups of conducting wire groups of transverse shielding line bottom, leading The periphery of line group, transverse shielding line and longitudinal shielding line is surrounded with full packaged insulation materials paper layer, and the conducting wire group includes being stacked Several enameled wires, and insulating paper layer is surrounded in the periphery of several enameled wires.

2. extra-high voltage direct-current inner shield composite conductor according to claim 1, which is characterized in that the transverse shielding line It is bare copper flat wire with longitudinal shielding line, and is surrounded with insulating paper layer in the periphery of bare copper flat wire.

3. extra-high voltage direct-current inner shield composite conductor according to claim 1, which is characterized in that be located at transverse shielding line top Two groups of conducting wire groups in portion and longitudinal shielding line are connected by pasting at the top of insulation adhered layer and transverse shielding line, are located at transverse shielding Two groups of conducting wire groups of line bottom and longitudinal shielding line are pasted by insulation adhered layer and transverse shielding line bottom to be connected.

4. extra-high voltage direct-current inner shield composite conductor according to claim 3, which is characterized in that the insulation adhered layer Including basal layer, the upper and lower surfaces of the basal layer are uniformly coated with the epoxide-resin glue with stickup effect.

5. extra-high voltage direct-current inner shield composite conductor according to claim 4, which is characterized in that the basal layer is The insulating paper of 0.5mm thickness.

6. extra-high voltage direct-current inner shield composite conductor according to claim 1, which is characterized in that the height of conducting wire group is equal to The height of longitudinal shielding line.

7. extra-high voltage direct-current inner shield composite conductor according to claim 1, which is characterized in that two conducting wire groups and longitudinal direction The sum of width of shielding line is equal to the width of transverse shielding line.

8. extra-high voltage direct-current inner shield composite conductor according to claim 1, which is characterized in that in conducting wire group, laterally screen The periphery for covering line and longitudinal shielding line is surrounded with two layers of full packaged insulation materials paper layer, and the winding direction of two layers of full packaged insulation materials paper layer is opposite.