The present invention relates to an insulating support for a power switchgear that insulates and supports the main body of a power switchgear provided in atmospheric air between a generator and a main transformer. The insulating support includes a core part that is molded only from a resin material and has a cylindrical shape; an exterior covering part that is molded only from a rubber material, is attached to an outer peripheral face of the core part, and includes a plurality of pleated parts; an end metal fitting that is attached to one end of the core part and is attached to the main body of the power switchgear; and an end metal fitting that is attached to the other end of the core part and is provided on the ground surface.

An insulator that may be self-centering is disclosed. The insulator includes an alignment feature that allows it to self-center during installation. In some embodiments, the insulator is created with a captive fastener with a specific alignment feature. The internal cavity of the insulator is formed so as to have a corresponding alignment feature. When tightened, the captive fastener is pressed into the alignment feature of the internal cavity, allowing it to self-center. In other embodiments, the mating electrode is also modified to include a corresponding alignment feature. For example, in some embodiments, the alignment feature on the electrode comprises a specially shaped depression, while the insulator has a corresponding protrusion. In other embodiments, the insulator also has a protective shield.

An insulator that may be self-centering is disclosed. The insulator includes an alignment feature that allows it to self-center during installation. In some embodiments, the insulator is created with a captive fastener with a specific alignment feature. The internal cavity of the insulator is formed so as to have a corresponding alignment feature. When tightened, the captive fastener is pressed into the alignment feature of the internal cavity, allowing it to self-center. In other embodiments, the mating electrode is also modified to include a corresponding alignment feature. For example, in some embodiments, the alignment feature on the electrode comprises a specially shaped depression, while the insulator has a corresponding protrusion. In other embodiments, the insulator also has a protective shield.

A guard assembly includes a main body that is sized to fit around insulator bushing equipment and forms an opening, and a plurality of faceplates that are interchangeable to connect to the main body and cover at least a portion of the opening.

An insulator for high-voltage applications has a rotationally symmetrical hollow tube made from fiberglass-reinforced epoxy resin; a silicone shielding attached to a periphery of the hollow tube; a base flange at a lower end of the hollow tube; a retainer, which is configured to retain an electrical operator, at an upper end of the hollow tube; and a plug, which is arranged inside the hollow tube and closes the front side of the upper end of the hollow tube and seals the hollow tube from the outside. The retainer has a rotationally symmetrical connection region. The insulator further has at the upper end of the hollow tube, a radially circumferential joining region which has no silicone shielding. The retainer is connectable to the insulator in such a way that the connection region of the retainer surrounds the joining region of the insulator in a form-fitting fashion.