SU736192A1 - High-voltage vacuum capacitor of capacitive voltage divider - Google Patents

Description

one

FIELD OF THE INVENTION The invention relates to electronic equipment, in particular, to electrovacuum devices. A high-voltage vacuum capacitor can be used for picking (as part of a capacitor divider) electronic kilovoltmeters, high-voltage, probes, high-voltage oscilloscopes, and powerful electrical and radio engineering devices for tuning and controlling the modes and parameters of high-voltage circuits and forming units.

Known high-voltage vacuum capacitor containing a getter element (getter), placed on a high-potential, the Central electrode 1.

. However, placing a getter on a high-potential electrode contributes to a decrease in durability and reliability, and increases the transverse and longitudinal dimensions of the divider with the same value of primary capacity.

The closest in technical essence to the invention is the high-voltage vacuum capacitor of a capacitive divider.

voltage, containing a cylindrical low potential electrode and gaped high potential and shielding electrodes, provided with flanged edge 2.

The purpose of the invention is increased reliability.

This is achieved by the fact that a high-voltage vacuum capacitor of a capacitive voltage divider containing a high-potential low-potential electrode and located

10 gap high-potential and shielding electrodes with beaded edge, provided with a protective cylindrical. electrode with flanged edge placed coaxially between screened

Claims (2)

15 and low-potential electrodes, the beaded edges (the protective and high-potential electrodes are opposite each other with a gap equal to 0.80, 9 the gap between the high-potential and low-potential electrodes, and the low-potential electrode is made in the form of a hollow pinch, the front part of which is in the form of hemispheres: Fig. 1 shows the structure of a high-voltage vacuum capacitor, general view; Fig. 2 is a schematic diagram of a capacitive voltage divider, the capacitor contains a vacuum dense shell 1, high-potential electrode 2 with beaded edge 3, low-potential electrode 4, high-potential output 5, anti-coronal funnel 6, low-potential top 7 insulator 8, compensation ring 9, base 10, protective 11 or helical electrode 11; beaded edge 12, eccentric electrode 13 is taken from the bathroom edge 14, the adapter ring 15 and the base 16.: A circuit diagram of a capacitive divider is equipped with measuring equipment; a high-voltage vacuum capacitor 17 is assembled; a low-voltage condenser instrument 18, measuring equipment 19, kilovoltmeter, high-voltage oscilloscope (not shown). The capacitive voltage divider consists of a capacitor 20, a passage between high-potential and low-potential electrodes (Cpr), a capacitance 21 between a high-potential. The edges of the high potential and protective electrodes are 0.8–0.9 the magnitude of the gap between the high potential and low potential electrodes. The radius of curvature of the edge of the protective electrode 11 is made not more than the radius of curvature of the edge of the high-potential electrode and less than the radius of the cylindrical part of the low-potential electrode. The base 10 of the capacitor is vacuum-tightly connected to the dielectric shell 1 via a transition ring 15. The capacitor in the apparatus is fixed by means of a base 16 electrically connected to the base 10. The device operates as follows. A high-voltage vacuum capacitor 17 is used as the high-voltage arm of a capacitive current divider. A high voltage capacitor 17 is used in conjunction with a series-connected low-voltage coil 18 (low-voltage divider arm). The measured (input UBX) voltage is applied to the high-potential output of the high-voltage capacitor and is distributed to the bridge by connecting the pass-through capacitance 20 of the high-voltage capacitor 18 and the output capacitance 23 of the low-voltage capacitor 18 and inversely proportional to the jaws of these capacitors. Measuring equipment is connected to the low-potential output of a high-voltage capacitor, which regresses the output voltage UBJ, LX reduced compared to UBX by Sp. Due to the fact that the curvature of the curvature of the flanged edge of the protective electrode 11 is greater than the curvature of the cylindrical part of the low-potential electrode 4, and the gap between the high-potential and protective electrodes is reduced compared to the gap between the high-potential and low-potential electrodes, in the area of the protective edge, I can reduce the gap between the high-potential and high potential electrodes in the area of the protective electrode, in the area of the protective electrode, the gap between the high-potential and high-potential electrodes is reduced in comparison with the gap between the high-potential and high-potential electrodes. electric field between high-potential and closed-source electrodes, eliminating the occurrence of vacuum breakdown, in other mezhelektrodiogo minute period. Thus, the measuring equipment connected to the low-potential electrode is completely protected from overloads at the input of the capacitive divider and from vacuum breakdowns inside the high-voltage vacuum capacitor. The use of the proposed high-voltage vacuum capacitor design ensures the safety of measuring equipment connected to the high-voltage vacuum capacitor in case of accidentally possible overvoltages at the input of the divider, as well as in the event of vacuum breakdowns in the high-voltage capacitor, increase the durability of the dividers and increase the temperature stability. The invention of the High-Voltage is a smart capacitive capacitor voltage capacitor, containing a low potential bristle potential electrode and a high-potential and shielded electrodes arranged with a gap; equipped with flanged edge, characterized in that, in order to increase reliability, it is provided with a protective cylindrical electrode with a flanged edge placed coaxially between the shielding and low-potential electrodes, moreover, the flanged edges of the protective and high-potential electrodes are opposite each other with a gap equal to 0.8 -0.9 size of the gap between the high-potential and low-potential electrodes, and the low-potential electrode is made in the form of a hollow Shch1lA1dr, the front part of which is 5 flax in the form of a hemisphere. 7361926 The sources of information, take into account in the examination 1, Patent Czechoslovakia N 103743, class, 21 G 10/02, 197L 2. USSR author's certificate number 260022, cl. H 01 G 5/24, 1968, (prototype).