SU1421207A1 - Controllable gas-filled discharger - Google Patents

Description

(46) 08/30/92. Bul } 32 /

(21) 4167463/07

(22) 12/23/86

(72) H, M. Vasilyeva and B. P. Merkulov (53) 621.316.933 (088.8) (56) USSR Author's Certificate No. 605279, cl. N About T 3/00, 1978. USSR Copyright Certificate No. 601777, class. H 01 T 3/00, 1978.

(54) CONTROLLED GAS DISTRIBUTOR

(57) The invention relates to the field of electrical engineering. The purpose of the invention is to increase the durability and stability of the triggering of the glitter in a high-current operation mode. This is achieved by making a hole in the main electrode 2, covering the control electrode 3, with broadening in the form of a truncated cone in the direction of the other main electrode 1, whose diameters DI and ZJj of the bases and its height h are related by the ratio) | -), 6. 2 Il.

ND

YU

ABOUT

The invention relates to gas discharge technology and can be m (Q10. Used to create high-voltage controlled arresters with 6 m (we take the service life when working in high-current mode and high stability of the timing of the operation during the operating time.

The purpose of the invention is to increase the durability and stability of operation in a high-current mode of operation.

FIG. I schematically depicts the controlled bit in FIG. Figure 2 shows the variation curves of the delay time variation in the run-time process.

The arrester contains the main electrodes and 2, made in the form of a half-body (|) ericch 4aujeK, and a control electrode 3. 3. The main electrode 2 is made with an insert of molybdenum.

When a voltage is applied between the ground electrodes 1 and 2 and a voltage pulse is applied to the control electrode 3, the discharge gaps between the main electrode 1 and the control electrode 3 and the gap between the control electrode 3 and the main electrode 2 alternate.

The change curves 1) of the delay time triggering during the run-time process are given for a controlled bit for four values

 .

AND

.3:

D, -Oh

0.6; 4-D, -D2

, 7.

h: h

A breakdown in the gap between the control electrode 3 and the main electrode 2 occurs between points that do not burn on the surface of the control electrode 3 near the edge facing the main discharge gap and points lying

0 g

five

on the surface of the cone of the main electrode.

Increasing the working surface of the electrodes reduces the erosion of materials per unit surface. The intensity of erosion at the same time in the process of operating time is significantly reduced.

Improving the control efficiency is achieved by creating conditions for a more uniform electric field in the main discharge gap before the supply of the control voltage.

Making a hole with a broadening in the form of a truncated cone in the main electrode, covering the control electrode, enhances the shielding of the main electrode of the heterogeneity introduced by the edge of the control electrode.

Thus, in a controlled gas-discharge discharge, i.e., the opening in the main electrode, covering the control electrode, is broadened in the direction of the main discharge gap with the fulfillment of the condition 0 - ---- - iO, 6 increases

P

.P.OL GO eternity and stability of operation in a high-current mode of operation.

Claims (1)

Invention Formula Controlled gas discharge with two main electrodes to the rod control electrode, placed coaxially in the hole of the main electrode enclosing it, made with an extension towards the main discharge gap, characterized in that, in order to increase durability and increase the stability of operation in a high-current mode of operation, the hole aperture width increases The main main electrode is made in the form of a truncated cone, the diameters DI and Dj of the bases of which and its height L are related by the relation :about-. ig. / 2-iO 10 B. 6-10 FIG. 2 W N (breakdown)