SU509911A1 - High Voltage Auto Gas Switch - Google Patents

Description

This invention relates to the field of high volt-NEGEG. apparatuses, in particular, to autogas switches. Autogas switches are known to contain an arc-suppressive chamber made of two insulating gas-generating parts of equal diameter (tubes with channels of different diameters and connected to each other) with a flexible current. ; Leads connection sign installed in a tube with a smaller channel diameter. However, the known switches are similar to the type. The limited range of the disconnected currents. The proposed switch in order to eliminate this deficiency is provided with a metal by jumpers connecting the tube channels and located along the length of the channels at a distance from each other. The drawing shows a high-voltage auto-gas switch. The proposed switch contains (Extinguishing chamber three and two (equally connected in length (narrow tubes 1 and wide 2 channels , Tp; J V. | ki are made of solid iaol cioghc gas-generating material. Their upper parts are screwed into sealing rgolov 3 and 4. At the bottom of the tube are open and combined with each other metal 5. Internal lethargy bgolovnika 3 communicates with the cavity 4 through the end cap from Verstov 6. This hole in some instances may be closed diaphragms cA, vfgeaeMoy when disconnecting only currents above a certain value). Inside the tube 51 1 there is a switchgear, a part of a switch, It consists of a plug 7, screwed into a sealing plug 8, a pin 9 of a socket type, flexible linkage 10. A lower end of the link is seized by a chopping knife 11. tube 2 current carrying part does not have. The cavities of tubes 1 and 2 are additionally electrically connected with the help of methyl-, metallic jumpers 12. Jumpers 12 with the help of a threaded joint and a special adhesive

Wa, for example, liquid glass, provide reliable mechanical connection of the inner walls of tubes 1 and 2 and the necessary sealing of the threaded connection.

The insertion of jumpers 12 is carried out through 5 special time holes drilled for this purpose in the outer wall of tube 2 of a larger internal diameter. These holes are flattened, dia. opposite-opposite holes, in which J 12 are screwed into the jumper. After the jumpers are installed, the temporary holes are welded with either a hot thermosetting compound made of a material, for example, similar to a gas-generating tube material, 15 or a special hardening compound, H..fl screwed using stoppers to seal the adhesive composition, made from the same material as the gas generating material (Tube 20

The operation of the device is as follows. Under the action of the actuator of the switch, the contact blade opens the contacts 9 and releases) g-. gives the channel of the tube 1 from the connection Y. Under the action of the high temperature of the electric arc W from the walls of the tube 1 there is a gas that forms a longitudinal gas blast, providing cooling and quenching of the arc.

When a small current is switched off, the amount of emitted gases is insignificant and, therefore, 30 is not enough to ignite a stable arc in the tube of the Udezhd stop- wide channel. ; washer: ogolanic 4 and bridges 12. Disconnecting the electric arc goes through 6 narrow-channel tube 1.

When the current in the wide channel tube is disconnected, a powerful ionized gas blast is formed to ignite the arc between the end cap 4 and the plugs 12. An electric circuit arises in it, parallel to the small channel tube circuit. The disconnected current is divided into two components, the magnitude of which is approximately proportional to the resistance of the channels and the tubes. The narrow-channel resistance has a superior value, since, as mentioned above, it has a high pressure and a higher outflow rate of gas, and therefore a better cooling of the arc. Therefore, the current cut-off in the narrow-channel tube comes earlier. The remaining fault current is disconnected in the wide channel tube.

Claims (1)

Invention Formula 14, . .., - - High voltage avtogazovhy vyklyuchageD comprising arc chamber vsholy nennuyu two communicating between an equal length of the insulating gazogeneri ruyuschih pipes with channels of different diacyl meters and a contact system with a flexible toksTs leading bond mounted in the tube with a smaller diameter canal of t n and h It also has the fact that, in order to expand the range of disconnected currents, it is equipped with metal bridges that hold the indicated channels of the tubes and are located along the length of the channels at a distance from each other. . .-- "  ----., .:. ./(F-, h b