SU665340A1

SU665340A1 - Switching apparatus arc-extinguishing device

Info

Publication number: SU665340A1
Application number: SU752186015A
Authority: SU
Inventors: Валентин Моисеевич Фрыгин
Original assignee: Куйбышевский политехнический институт им.В.В.Куйбышева
Priority date: 1975-11-03
Filing date: 1975-11-03
Publication date: 1979-05-30

Description

образуютс дуги. Дуги, гор щие в первый момент .после отключени , изображены пунктирными стрелками, а носле отключени - сплошными стрелками.arcs are formed. The arcs burning at the first moment after disconnection are depicted with dotted arrows, and during disconnection they are shown with solid arrows.

В первый момент отрыва пасты от электропровод щих пластин в каждом промежутке между пластинами возникают две дуги, соответствующие двум разрывам цепи . Ввиду близости их нахождени дуги по мере удалени от пасты сливаютс в одну дугу, гор щую в каждом промежутке между .пластинами. Так как в камере возникает р д последовательных дуг, то они быстро гаснут.At the first moment of separation of the paste from the electrically conducting plates, in each gap between the plates, two arcs appear, corresponding to two breaks in the circuit. In view of the proximity of their location, the arcs merge as one moves away from the paste into one arc, burning in each gap between the plates. Since a series of consecutive arcs appears in the chamber, they quickly go out.

Преимуществом такой камеры вл етс то, что дуга по вл етс в ней непосредственно пластинами и дл ввода ее в решетку не требуетс применени сильного магнитного пол . Кроме того, использование жидкометаллической пасты при отключении не дает брызг, а следовательно, не приводит к .повторным зажигани м дуг между пластинами, чд-о повышает надежность гашени дуги.The advantage of such a camera is that the arc appears in it directly by the plates and to introduce it into the lattice does not require the use of a strong magnetic field. In addition, the use of liquid metal paste when disconnected does not produce spatter, and therefore does not lead to the repeated ignition of the arcs between the plates, the CD-O improves the reliability of arc extinction.

Claims

Invention Formula

The arcing device of the switching device, containing a series of parallel, installed with a gap one relative to the other electrically conductive plates, with the ends of which are electrically insulating covers so that the chamber is closed, characterized in that, in order to improve the reliability of the arc, the plates are partially made an electrically insulating material, the space between them is filled with liquid metal paste, and the camera is installed to rotate 180 ° with two fixed positions.

Sources of information taken into account during the examination 1. USSR Author's Certificate No. 167228, cl. H 01 H 29/00, 1959.

2. US patent N ° 3641293, cl. 200-148, 1971.