HIGH-VOLTAGE BUSHING OF SEALED GAS-FILLED SWITCHGEAR Russian patent published in 2022 - IPC H02B13/35 

FIELD: electrical engineering.

SUBSTANCE: invention relates to the field of electrical engineering, namely to high-voltage equipment, in particular to high-voltage sealed gas-filled devices. The high-voltage bushing of the sealed gas-filled switchgear includes a hollow insulator made with a cover at the upper end to accommodate the contact pad, and a housing connected to the lower part of the insulator and equipped with a lower flange for attachment to the sealed gas-filled switchgear. The body is made of spherical shape with a cone-shaped transition from the side of the insulator attachment. The angle of inclination of the insulator relative to the plane of the lower flange is less than 90 degrees. A screen is installed inside the insulator in its lower part, and an electrical conductor is installed along its entire length coaxially to the insulator, the lower end of which protrudes into the internal volume of the housing and is connected to the first contact element installed along one axis. The second and third contact elements are installed along an axis perpendicular to the plane of the lower flange and passing through its center. The second contact element is made in the form of a truncated body with a through longitudinal cavity, in which a connecting element is installed with an end section protruding from the cavity, made with the possibility of rigid connection with the current-carrying system of the sealed gas-filled switchgear. The third contact element is provided with an axial hole through which the end portion of the connecting element extends.

EFFECT: increasing the reliability of the high-voltage bushing due to design changes and the shape of the contact element and the case, which made it possible to exclude the support insulation in the case and to reduce the weight.

7 cl, 3 dwg