SU879694A1

SU879694A1 - Three-phase current lead-in wire

Info

Publication number: SU879694A1
Application number: SU802879145A
Authority: SU
Inventors: Александр Владимирович Душкин; Михаил Леонидович Жуков; Евгений Петрович Половинкин; Эрик Семенович Сухобрус
Original assignee: Куйбышевский Завод "Электрощит"
Priority date: 1980-01-31
Filing date: 1980-01-31
Publication date: 1981-11-07

Description

, Изобретение относится к электроэнергетике и может быть использовано на электростанциях и подстанциях., The invention relates to the electric power industry and can be used in power plants and substations.

Известен трехфазный токопровод, содержащий защитный кожзгх с охватывающими его опорными кольцами, токоведушие шины и опорные изоляторы, выполненные в виде изоляционных пла<зтин с дуговидными вырезами, образующими вогнутые участки под шины £1Ц . ₁ A three-phase conductor is known, which contains a protective imitation leather with supporting rings surrounding it, current-carrying busbars and supporting insulators made in the form of insulating plates with arcuate cutouts forming concave sections for tires £ 1C. ₁

Недостатком этого токопровода является сложность конструкции, ненадежность крепления шин, большие габаритные размеры.The disadvantage of this conductor is the complexity of the design, unreliable fastening of tires, large overall dimensions.

Наиболее близким техническим решением является трехфазный токопровод, содержащий защитный кожух, в котором на опорных изоляторах, закреплены токоведушие шины [*2] .The closest technical solution is a three-phase conductor containing a protective casing in which current-carrying buses are fixed on the supporting insulators [* 2].

Недостатком этого токопровода являются большие габаритные размеры, большая металлоемкость, большое индуктивное сопротивление, а следовательно, бопь2 шие потери активной мощности в металлических частях токопровода.The disadvantage of this current lead is its large overall dimensions, large metal consumption, high inductive resistance, and, consequently, significant losses of active power in the metal parts of the current lead.

Цепью изобретения является упрощение конструкции, уменьшение габаритов, снижение металлоемкости и повышение надежности токопровода.The chain of the invention is to simplify the design, reduce the size, reduce metal consumption and increase the reliability of the current lead.

Эта цель достигается тем, что трехфазный токопровод, содержащий защитный провод, в котором на опорных изоляторах закреплены токоведушие шины, снабжен сухарями, выполненными с одной стороны с сегментными вырезами, имеющими форму опорных изоляторов, а с другой - с поверхностью, повторяющей профиль шины, причем сухари закреплены на изоляторах, а между ними установлена шина.This goal is achieved by the fact that a three-phase conductor containing a protective conductor, in which current-carrying busbars are fixed on the supporting insulators, is equipped with crackers made on the one hand with segment cutouts having the shape of the supporting insulators, and on the other, with a surface repeating the tire profile, crackers are mounted on insulators, and a bus is installed between them.

На фиг. 1 изображено поперечное сечение токопровода; на фиг. 2 - сечение А-А на фиг. 1.In FIG. 1 shows a cross section of a current lead; in FIG. 2 is a section AA in FIG. 1.

Трехфазный токопровод включает защитный кожух, выполненный разъемным ·' из двух полукожухов 1 и 2, соединяющихся между собой с помощью болтовых соединений 3, токоведущие шины 4, 5 иThe three-phase current lead includes a protective casing, made detachable · from two half-shells 1 and 2, interconnected by bolted connections 3, current-carrying tires 4, 5 and

6, установленные по углам равнобедренного треугольника, опорные элементы 7. На опорных элементах 7 с помощью болтов 8 закреплены опорные изоляторы 9, на которых установлены с помощью шинодержателей 10 шины 4 и 5. Шина 6 установлена на ребрах изоляторов 9 с помощью сухарей 11. Последние для предотвращения своего перемещения вдоль продольной оси токопровода имеют ceriментные вырезы (фиг. 2) с радиусом, равным радиусу изолятора. С целью жесткой фиксации шины 6, боковая поверхность этих вырезов снабжена ребрами 12, конфигурация которых сопрягается с поверхностью изоляторов, а внешние боковые стороны сухарей имеют выступы (пазы) под шину, в зависимости от формы и толщины последней.6, mounted at the corners of an isosceles triangle, supporting elements 7. On the supporting elements 7, bolts 8 are mounted supporting insulators 9, on which are mounted busbars 4 and 5 with busbars 10. Bus 6 is mounted on the edges of insulators 9 using crackers 11. The latter in order to prevent their movement along the longitudinal axis of the current lead, they have cerient cutouts (Fig. 2) with a radius equal to the radius of the insulator. In order to rigidly fix the tire 6, the lateral surface of these cutouts is provided with ribs 12, the configuration of which is mated with the surface of the insulators, and the outer lateral sides of the crackers have protrusions (grooves) under the tire, depending on the shape and thickness of the latter.

Шина б при сборке токопровода устанавливается следующим образом.Bus b during the assembly of the conductor is installed as follows.

Сначала устанавливают изоляторы 9-на опорных элементах 7, причем сначала устанавливают изоляторы одной какой-нибудь фазы, например изоляторы под шину 4.First, insulators 9 are installed on the supporting elements 7, and first, insulators of one phase are installed, for example, insulators under bus 4.

Затем на шину 6 устанавливают сухари 11, которые своими выступами (пазами) под шину удерживаются на ее боковых гранях. После этого монтируют изоляторы 9 под шину 5 и одновременно между изолятора- зо ми устанавливают шину 6 в сборе с сухарями 11. При этом изоляторы 9 охватываются сегментными вырезами сухарей 11,Then, crackers 11 are installed on the tire 6, which are held by its protrusions (grooves) under the tire on its side faces. After that, the insulators 9 are mounted under the bus 5 and at the same time, the bus 6 is assembled together with the crackers 11 between the isolators. In this case, the insulators 9 are covered by segment cutouts of crackers 11

88

Фиг./.Fig. /.

879694 4 а боковые ребра 12 последних входят в сочленение с ребрами изоляторов 9. Таким образом шина 6 оказывается надежно зафиксированной в заданном положении. Изобретение позволяет упростить кон- . струкцию токопровода, уменьшить его габаритные размеры и снизить металлоемкость, а сокращение количества опорных изоляторов повысит надежность токопровода за счет уменьшения изоляции.879694 4 and the lateral ribs 12 of the latter are connected to the ribs of the insulators 9. Thus, the tire 6 is securely fixed in a predetermined position. The invention allows to simplify the con. the structure of the current lead, reduce its overall dimensions and reduce metal consumption, and reducing the number of supporting insulators will increase the reliability of the current lead by reducing insulation.

Claims

(54) THREE PHASE CONDUCTOR I The invention relates to electric power industry and can be used in power plants and substations. A three-phase conductor is known, which contains a protective casing with supporting rings that surround it, busbars and conductor insulators made in the form of insulating plateletin with arcuate cuts forming concave sections for the USA bus. large overall dimensions. The closest technical solution is a three-phase current-carrying conductor containing a protective casing in which current-carrying tires are fixed to the supporting insulators. The current-conductor has the disadvantage of large overall dimensions, high metal consumption, high inductance resistance, and, consequently, large losses of active power in the metal parts of the conductor. The aim of the invention is to simplify the design, reduce the size, reduce the metal consumption and increase the reliability of the conductor. This goal is achieved by the fact that a three-phase conductor containing a protective wire in which current-carrying busbars are attached to the supporting insulators is provided with crackers that are filled on one side with segment cuts having the form of supporting insulators, and on the other with a surface, repeat profile, and the crackers are fixed on insulators, and a tire is installed between them. FIG. 1 shows the cross-section of the conductor; in fig. 2 is a section A-A in FIG. 1. The three-phase conductor includes a protective casing made of two semi-housings 1 and 2, interconnected by means of bolted connections 3, conductive buses 4, 5 and 38 6, mounted on the corners of an isosceles triangle, supporting elements 7. On supporting elements 7 using bolts 8, supporting insulators 9 are fixed, on which tires 4 and 5 are mounted with the help of tire holders 10. Bus 6 is mounted on the edges of insulators 9 using crackers 11. The latter have ceri-m to prevent their movement along the longitudinal axis ntnye cutouts (FIG. 2) with a radius equal to the radius of the insulator. For the purpose of rigid fixation of the tire 6, the lateral surfaces of these cutouts are provided with ribs 12, the configuration of which mates with the surface of the Insulators, and the outer lateral sides of the crackers have protrusions (grooves) under the tire, depending on the shape and thickness of the latter. The bus b, when assembling the busbar, is installed as follows. First, insulators 9 - n supporting elements 7 are installed, and first insulators of one of any kind of phases are installed, for example insulators under bus 4. Next, rusks 1 are installed on bus 6 which, with their projections (grooves) under bus, are held on its lateral edges After that, insulators 9 are mounted under bus 5 and, simultaneously, insulator b is assembled between insulators with dry pads 11. In this case insulators 9 are covered with segment cutouts of crackers 1 4 and lateral fins 12 of the latter enter into joint with the edges of insulators 9 So the tire is 6 o azyvaets securely fixed in position. The invention allows to simplify the con. The structure of the conductor, reduce its overall dimensions and reduce the metal consumption, and reducing the number of supporting insulators will increase the reliability of the conductor by reducing the insulation. The invention consists of a three-phase cable pipeline containing a protective casing in which current-carrying busbars are mounted on the supporting insulators, characterized in that, in order to simplify the design, reduce overall dimensions, reduce metal consumption and increase reliability, the conductors are provided with crackers made from one side with segment cuts having the form of supporting insulators, and on the other with a surface that repeats the tire profile, the crackers being fixed on the insulators, and a tire is installed between them. Sources of information taken into account during the examination 1. USSR author's certificate No. 400947, cl. H 02Q 5/06, 197О.

2. Semchinov AM. The pipelines of industrial enterprises. Energy, 1964, p. 173, fig. 5-17.

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