阅读说明：本技术 一种500kV出线装置 (500kV outgoing line device ) 是由 吴东阳 霍上元 李丹丹 尚吉 于 2020-06-06 设计创作，主要内容包括：一种500kV出线装置涉及变压器电气绝缘领域。主要是为解决现有的出线装置到升高座绝缘距离大的问题而设计的。它包括均压球和均压管,均压球和均压管外面设成型绝缘件；成型绝缘筒由竖直成型绝缘筒、弯成型绝缘筒、水平成型绝缘筒组成；均压管的绝缘覆盖与成型绝缘筒之间设有撑条；在成型绝缘筒的外面设增大爬电距离装置；增大爬电距离装置包括异形撑条,异形撑条固定在成型绝缘筒外面,异形撑条外壁上设有凹槽,绝缘纸筒固定在凹槽内；异形撑条两端的成型绝缘筒上有防滑圈。绝缘纸筒外面设副绝缘纸筒,环形支架卡在副绝缘纸筒外面,环形支架通过绝缘螺栓与升高座连接。优点减小了出线装置到升高座的绝缘距离。(A500 kV outgoing line device relates to the field of electrical insulation of transformers. The device is mainly designed for solving the problem that the insulation distance from the existing outgoing line device to the lifting seat is large. The pressure equalizing device comprises a pressure equalizing ball and a pressure equalizing pipe, wherein a molded insulating part is arranged outside the pressure equalizing ball and the pressure equalizing pipe; the molding insulating cylinder consists of a vertical molding insulating cylinder, a bent molding insulating cylinder and a horizontal molding insulating cylinder; a stay is arranged between the insulation cover of the pressure equalizing pipe and the molding insulation cylinder; a creepage distance increasing device is arranged outside the molded insulating cylinder; the device for increasing the creepage distance comprises a special-shaped stay, the special-shaped stay is fixed outside the formed insulating cylinder, a groove is formed in the outer wall of the special-shaped stay, and the insulating paper cylinder is fixed in the groove; and anti-slip rings are arranged on the insulating cylinders at the two ends of the special-shaped stay. An auxiliary insulating paper cylinder is arranged outside the insulating paper cylinder, the annular support is clamped outside the auxiliary insulating paper cylinder and is connected with the lifting seat through an insulating bolt. The advantage has reduced the insulating distance of being qualified for the next round of competitions device to rising seat.)

1. The utility model provides a 500kV device of being qualified for next round of competitions, includes voltage-sharing ball (1) and voltage-sharing pipe (2), and voltage-sharing pipe and voltage-sharing ball are all installed in rising seat (10), characterized by: the pressure equalizing ball is covered by unbleached sulfate paper pulp, and a molding insulating part (3) is arranged outside the pressure equalizing ball; the upper end of the pressure equalizing pipe is connected with the pressure equalizing ball through a flange;

a forming insulating cylinder is arranged outside the pressure equalizing pipe and consists of a vertical forming insulating cylinder (41), a bent forming insulating cylinder (42) and a horizontal forming insulating cylinder (43); wherein the vertical opening end of the bending insulation cylinder extends into the lower end of the vertical insulation cylinder, namely the outer wall of the vertical opening end of the bending insulation cylinder is bonded with the inner wall of the lower end of the vertical insulation cylinder; the horizontal opening end of the bending insulation cylinder extends into the rear end of the horizontal forming insulation cylinder, namely the outer wall of the horizontal opening end of the bending insulation cylinder is bonded with the inner wall of the rear end of the horizontal forming insulation cylinder;

the pressure equalizing pipe is covered by unbleached sulfate paper pulp to form an insulating cover, and a stay (5) is arranged between the insulating cover of the pressure equalizing pipe and the formed insulating cylinder;

the creepage distance increasing device (6) is arranged outside the vertical forming insulating cylinder and the horizontal forming insulating cylinder; the device for increasing the creepage distance comprises an annular special-shaped stay (6-1), an anti-slip ring (6-2) and an insulating paper cylinder (6-3), wherein the annular special-shaped stay is fixed outside a vertical forming insulating cylinder (41) or a horizontal forming insulating cylinder (43), the inner wall of the special-shaped stay is in contact with the outer wall of the vertical or horizontal forming insulating cylinder, a circle of annular groove is formed in the outer wall of the special-shaped stay, one part of the insulating paper cylinder (6-3) is fixed in the groove in the outer wall of the special-shaped stay, and the other part of the insulating paper cylinder is exposed out of the groove; anti-slip rings (6-2) are respectively fixed on the molding insulating cylinders at the two ends of the special-shaped stay;

an annular auxiliary insulating paper cylinder (6-4) is arranged outside the insulating paper cylinder, an annular support (8) is clamped outside the auxiliary insulating paper cylinder, and the annular support is connected with the lifting seat through an insulating bolt (9).

2. The 500kV line outgoing device of claim 1, wherein: and an auxiliary insulating paper board (7) is arranged at the position of the inner side of the lifting seat where the insulating bolt is installed.

The technical field is as follows:

the invention relates to the field of electrical insulation of transformers, in particular to an alternating current outlet device installed on a transformer.

Background art:

the transformer outgoing line device is an insulating device for a transformer connector body and a sleeve, and has the functions of effectively improving the distribution of a surrounding electric field and reducing the insulating distance.

The equal pipe forming insulator that presses of current outlet device is in large quantity, and the difficult installation of ripple dish bearing structure just needs the dry shaping of wet paper base, and the technology is complicated, and the device that is qualified for the next round of competitions simultaneously is big to rising seat insulation distance, and material cost is big.

The invention content is as follows:

the technical problem to be solved by the invention is to provide an alternating current 500kV outgoing line device which can obtain enough electric field margin, guarantee the creepage margin requirement and increase the breakdown strength of an oil gap.

The above object is achieved by: the device comprises a pressure equalizing ball and a pressure equalizing pipe, wherein the pressure equalizing pipe and the pressure equalizing ball are both arranged in a lifting seat, the pressure equalizing ball is covered by unbleached sulfate paper pulp, and three layers of formed insulating parts are arranged outside the pressure equalizing ball; the upper end of the pressure equalizing pipe is connected with the pressure equalizing ball through a flange;

a forming insulating cylinder is arranged outside the pressure equalizing pipe and consists of a vertical forming insulating cylinder, a bent forming insulating cylinder and a horizontal forming insulating cylinder; wherein the vertical opening end of the bending insulation cylinder extends into the lower end of the vertical insulation cylinder, namely the outer wall of the vertical opening end of the bending insulation cylinder is bonded with the inner wall of the lower end of the vertical insulation cylinder; the horizontal opening end of the bending insulation cylinder extends into the rear end of the horizontal forming insulation cylinder, namely the outer wall of the horizontal opening end of the bending insulation cylinder is bonded with the inner wall of the rear end of the horizontal forming insulation cylinder;

the pressure equalizing pipe is covered by unbleached sulfate paper pulp to form an insulating cover, and a stay bar is arranged between the insulating cover of the pressure equalizing pipe and the formed insulating cylinder;

the creepage distance increasing device is arranged outside the vertical forming insulating cylinder and the horizontal forming insulating cylinder; the device for increasing the creepage distance comprises an annular special-shaped stay, an anti-skidding ring and an insulating paper cylinder, wherein the annular special-shaped stay is fixed outside a vertical forming insulating cylinder or a horizontal forming insulating cylinder; and anti-slip rings are respectively fixed on the molding insulating cylinders at the two ends of the special-shaped stay.

The annular vice insulating paper section of thick bamboo is established to insulating paper section of thick bamboo outside, and the ring carrier card is connected with the rising seat through insulating bolt in vice insulating paper section of thick bamboo outside, and the position department of installing insulating bolt in rising seat inboard is equipped with vice insulating paper board, increase creepage margin.

The annular support comprises two semicircular monomer structures, and a semicircular monomer structure passes through insulating bolted connection promptly and rises on the seat, and two semicircular monomer structures block vice insulating fiber container and pass through bolted connection together, realize fixed to increase creepage distance device.

The invention has the advantages that: because the equalizing ball is covered by unbleached kraft paper, and three layers of formed insulating parts are arranged outside the equalizing ball, the distance distribution is reasonable, and enough electric field margin can be obtained. Because the device is fixed with the lifting seat through the annular bracket, the supporting structure is simplified. Due to the adoption of the device for increasing the creepage distance, the creepage margin requirement can be ensured. Because the insulating paper tube is arranged in the groove of the special-shaped stay, the insulating paper tube and the special-shaped stay can be ensured not to have relative displacement. The annular support and the lifting seat are fixed by adopting insulating bolts, and an auxiliary insulating paper board is arranged on the inner side of the lifting seat, so that the insulating margin can be ensured. Because the two ends of the bending insulation cylinder respectively extend into the vertical insulation cylinder and the horizontal insulation cylinder, the space of an oil gap on the inner side layer can be reduced, the breakdown strength of the oil gap is increased, and the insulation strength is enhanced. Simultaneously, all press the pipe to adopt insulating cover to through electric field calculation, arrange the insulating shaping section of thick bamboo of one deck outside insulating cover position, guarantee reasonable oil clearance and cut apart, promote oil clearance compressive strength, the device of being qualified for the next round of competitions has reasonable field intensity margin, and adopt behind the increase creepage distance device, guaranteed the insulating properties of the device of being qualified for the next round of competitions in electric field intensity and creepage distance two aspects, further reduced the insulating distance of the device of being qualified for the next round of competitions to the rise seat, the structure is simpler, effective.

Description of the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a view A-A of FIG. 1;

fig. 3 is an enlarged schematic view at I in fig. 1.

The specific implementation mode is as follows:

the invention is further illustrated with reference to fig. 1-3;

the device comprises a pressure equalizing ball 1 and a pressure equalizing pipe 2, wherein the pressure equalizing pipe and the pressure equalizing ball are both arranged in a lifting seat 10, the pressure equalizing ball is covered by unbleached sulfate paper pulp, and three layers of formed insulating parts 3 are arranged outside the pressure equalizing ball; the upper end of the pressure equalizing pipe is connected with the pressure equalizing ball through a flange;

a forming insulating cylinder is arranged outside the pressure equalizing pipe and consists of a vertical forming insulating cylinder 41, a bent forming insulating cylinder 42 and a horizontal forming insulating cylinder 43; wherein the vertical opening end of the bending insulation cylinder extends into the lower end of the vertical insulation cylinder, namely the outer wall of the vertical opening end of the bending insulation cylinder is bonded with the inner wall of the lower end of the vertical insulation cylinder; the horizontal opening end of the bending insulation cylinder extends into the rear end of the horizontal forming insulation cylinder, namely the outer wall of the horizontal opening end of the bending insulation cylinder is bonded with the inner wall of the rear end of the horizontal forming insulation cylinder;

the pressure equalizing pipe is covered by unbleached sulfate paper pulp to form an insulating cover, and a stay bar 5 is arranged between the insulating cover of the pressure equalizing pipe and the formed insulating cylinder;

the creepage distance increasing device 6 is arranged outside the vertical forming insulating cylinder and the horizontal forming insulating cylinder; the device for increasing the creepage distance comprises an annular special-shaped stay 6-1, an anti-slip ring 6-2 and an insulating paper cylinder 6-3, wherein the annular special-shaped stay is fixed outside a vertical forming insulating cylinder 41 or a horizontal forming insulating cylinder 43, the inner wall of the special-shaped stay is contacted with the outer wall of the vertical or horizontal forming insulating cylinder, a circle of annular groove is arranged on the outer wall of the special-shaped stay, one part of the insulating paper cylinder 6-3 is fixed in the groove on the outer wall of the special-shaped stay, and the other part of the insulating paper cylinder is exposed out of the groove; and anti-slip rings 6-2 are respectively fixed on the molding insulating cylinders at the two ends of the special-shaped stay.

An annular auxiliary insulating paper cylinder 6-4 is arranged outside the insulating paper cylinder, an annular support 8 is clamped outside the auxiliary insulating paper cylinder and is connected with the lifting seat through an insulating bolt 9, and an auxiliary insulating paper plate 7 is arranged at the position where the insulating bolt is arranged on the inner side of the lifting seat, so that the creepage margin is increased.