SU964766A1

SU964766A1 - Vacuum arc chute

Info

Publication number: SU964766A1
Application number: SU803228112A
Authority: SU
Inventors: Кемаль Кадырович Намитоков; Владимир Георгиевич Брезинский; Дмитрий Павлович Солопихин; Иван Яковлевич Суровцев; Андрей Абдулович Харисов
Original assignee: Харьковский институт инженеров коммунального строительства
Priority date: 1980-12-30
Filing date: 1980-12-30
Publication date: 1982-10-07

Description

Изобретение относитс к электротехнике , преимущественно к вакуумньм ко1и /1утационным аппаратам.The invention relates to electrical engineering, principally to vacuum coders / displacement devices.

Известны вакуумные дугогасительные камеры ВДК), содержащие корпус из двух секций, кажда из которых выполнена из изол ционного материала, армированного по торЦам металлическими фланцами. При помощи последних секции привариваютс одна к другой l.Vacuum arc suppression chambers VDK) are known, comprising a casing of two sections, each of which is made of an insulating material reinforced at the ends with metal flanges. With the latter, the sections are welded to one another.

Поскольку сравнительно больша часть корпуса ВДК выполнена из диэлектрика , ее механическа прочность понижена (особенно при воздействии изгибающих усилий). Диэлектрические материалы, такие как стекло и керамика , имеют низкую механическую прочность на изгиб, из-за чего стойкость к механическим воздействи м таких ВДК невысока.Since a comparatively large part of the VDK case is made of a dielectric, its mechanical strength is lowered (especially when subjected to bending forces). Dielectric materials, such as glass and ceramics, have a low mechanical bending strength, which is why the resistance to mechanical effects of such VDK is low.

Наиболее близкий к изобретению по технической сущности и достига-, емому результату вл етс ВДК, содергжаща корпус, состо ний из двух металлических коаксиальных стаканов, выполненных с зазором, уплотненным кольпевой диэлектрической проклад-- КОЙ t2 The closest to the invention to the technical essence and achievable result is VDK, containing the case, the states of two metal coaxial cups, made with a gap, sealed with a dielectric dielectric - COY t2

Однако наличие изол ционного проMemvTKa в ВДК по влп пт успешно ееHowever, the presence of the insulation proMemvTKa in the VDK

использовать только при напр жени х до 1140 В,Use only at voltages up to 1140 V,

Целью изобретени вл етс повышение номинального напр жени ВДК при сохранении относительной высокой стойкости к механическим воздействи м .The aim of the invention is to increase the nominal voltage VDK while maintaining a relatively high resistance to mechanical stress.

Поставленна цель достигаетс тем, что в устройстве упом нутые стаканы The goal is achieved by the fact that in the device the said glasses

10 разнесены друг относительно друга и расположены коаксиально с дополнительно введенным металлическим ци- линдром, образующим два зазора между боковыми поверхност ми стаканов и цилиндра, уплотненных кольцев1 1и диэлектрическими прокладками.10 are spaced apart from each other and are located coaxially with an additionally introduced metal cylinder, forming two gaps between the side surfaces of the glasses and the cylinder, sealed with rings 1 1 and dielectric gaskets.

На фиг. 1 представлена ВДК; на фиг. 2 - то же, вариант; на фиг. 3 вариант , ВДК, без промежуточного кон20 такта; на фиг. 4 - вариант, металлический цилиндр размещен между металлическими стаканами.FIG. 1 is represented by VDK; in fig. 2 - the same, option; in fig. Option 3, VDK, without an intermediate time limit of 20; in fig. 4 - option, a metal cylinder is placed between the metal cups.

Камера содержит неподвижный 1 и подвижный 2 токопроводы, соединенные с металлическими стаканами 3 ч 4, The chamber contains a fixed 1 and movable 2 conductors connected to metal cups 3 hours 4,

Claims

25 metal cylinder 5, separated from metal cups with expansion pads 6 and 7, intermediate contact 8, electrically connected 30 to the metal cylinder by an elastic element 9, bellows 10 connected to the metal cup 4 and the current 2 with movement of the latter. The inner diameter of the metal cylinder is larger than the outer diameter of the metal cups. VDK works as follows. V- When the circuit is closed, the moving contact of the tokop of gadget 2, moving. at first it comes into contact with intermediate contact 8, and then presses it against the fixed contact of conductor 1. When it is disconnected, the contact opens in reverse order: first an intercontact gap occurs between the stationary contact and the intermediate contact, and then between intermediate and movement. nym. In the case where the intermediate contact 8 is rigidly connected to the cylinder .5, both point 1 and 2 with the outer diameter of the metal cylinder are smaller than the inner diameters of the metal cup are movable (Fig. 2), the sequence of closures and openings of the contact gaps can be any depending on the required characteristics of the VDK, and the presence of two insulating gaskets does not lead to an increase in the dimensions of the chamber. The cylinder 5 in the case of its connection with the intermediate contact (Fig. 4) can perform the functions of an additional conductor. In the open state, between stationary and moving conductors, there is no galvanic coupling. As a result of the presence of gaskets in each of the parts of the body, the increase in voltage applied to the mobile and fixed current leads does not lead to an increase in the size of the VDK. The invention allows to increase the nominal voltage of the VDK while maintaining relatively high resistance to mechanical stress. The presence of two insulating gaps, as well as the possibility of double breaking, does not only increase the nominal voltage, but also reduces the limitations imposed on the circuit parameters , due to the lower sensitivity of the camera to overvoltages. The functionality of the camera, due to the possibility of placing an intermediate contact in it, is also expanding. The proposed VDK will be used in vacuum switching devices at voltages up to 3-kV, as well as in the creation of devices with combined functions, for example, a switch-on machine. Claims of the invention A vacuum arcing chamber comprising a housing consisting of two metal coaxial cups, made with a gap sealed with an annular dielectric gasket, which, in order to increase the nominal voltage while maintaining a relatively high resistance to mechanical effects, the cups are spaced apart from each other and are located coaxially with an additionally inserted metal cylinder forming two gaps between the side surfaces of the cups. cylinder densified annular dielectric spacers. Sources of information taken into account during the examination 1. UK Patent No. 1190442, cl. H 1 N 1967.

2. USSR author's certificate number 615552, cl. H 01 H 33/66, 1978.

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