Full solid insulation ring network cabinet

Abstract

The invention discloses a total solid insulating ring network cabinet comprising a cabinet body, wherein a solid-sealed polar pole is arranged in the cabinet body; the solid-sealed polar pole comprises an epoxy resin casting block, a vacuum arc extinguish chamber and a vacuum isolation switch; the vacuum arc extinguish chamber and the vacuum isolation switch are arranged in the epoxy resin casting block; the static contact of the vacuum arc extinguish chamber is connected with a first line inlet and outlet casing pipe which is positioned at the side of the epoxy resin casting block; the dynamic contact of the vacuum arc extinguish chamber is linked with a first pull rod; the static end of the vacuum isolation switch is connected with a second line inlet and outlet casing pipe; the second line inlet and outlet casing pipe is positioned at the side of the epoxy resin casting block; the dynamic end of the vacuum isolation switch is linked with a second pull rod; the dynamic end of the vacuum isolation switch is connected with the dynamic contact of the vacuum arc extinguish chamber through soft connection; the upper ends of the first pull rod and the second pull rod extend out of the epoxy resin casting block; and the first pull rod and the second pull rod are connected with an operation mechanism. The total solid ring network cabinet can be used for enhancing the insulating capability and effectively eliminating potential safety hazard, and has a higher protection level.

Description

technical field [0001] The invention relates to a power supply network ring network cabinet, in particular to a medium-voltage AC power distribution all-solid insulation ring network cabinet. Background technique [0002] There are two types of ring network cabinets in the prior art: air-insulated and SF6 gas-insulated: the air-insulated ring network cabinet is composed of a low-voltage compartment and a high-voltage compartment; only some secondary instruments and control and protection components need to be installed in the low-voltage compartment etc.; the high-voltage compartment is equipped with components such as isolating switches, load switches, fuses and grounding switches. The other is the SF6 insulated ring network cabinet. Because the gas SF6 used is toxic and easy to leak after arc extinguishing, the metal box is large in size, requires high sealing performance, and the processing technology is complicated, resulting in high cost of the box body and maintenance....

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of the existing medium-voltage AC power distribution all-solid insulated ring main unit with poor insulation capacity, low protection level, and potential safety hazards, the present invention provides a high-level, effective block with improved insulation capacity and protection. All solid insulated ring main unit to eliminate potential safety hazards

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