Fully-insulated and fully-sealed handcart type high-voltage isolating switch equipment

Abstract

The invention provides fully-insulated and fully-sealed handcart type high-voltage isolating switch equipment, and belongs to the technical field of electrical equipment. The fully-insulated and fully-sealed handcart type high-voltage isolating switch equipment comprises a cabinet body frame, a solid-sealed polar column type isolation handcart switch, a three-phase integrated current transformer,a fully-sealed lightning arrester, an incoming cable terminal and a branch bus expansion cable terminal. The cabinet body frame comprises a secondary bus chamber, an instrument chamber, an isolation switch chamber, a bus chamber and a reserved compartment. According to the invention, the problems of serious dust pollution, easy condensation and the like due to the fact that the insulation capability is reduced are solved. Meanwhile, the problem that existing solid insulation switch cabinets, gas insulation switch cabinets, incoming switch cabinets or bus connection switch cabinets are weak incurrent carrying capacity can also be solved. Te equipment realizes the ideal unity of full insulation, full sealing, dust prevention, condensation prevention, strong current carrying capacity, handcart type high-voltage isolating switch, convenient operation, less operation and maintenance, or free operation and maintenance.

Description

technical field [0001] The invention belongs to the technical field of electrical equipment, in particular to a complete set of fully insulated, fully sealed and dustproof handcart-type high-voltage isolating switches. Background technique [0002] In the current 40.5kV and below power switchgear system, high-voltage switchgear equipment such as air insulation, solid insulation, and gas insulation are mainly used. According to the different use environments and loads, these switchgears have major application fields. [0003] 1. For the rated current ≥ 630A, the incoming and outgoing power system with low dust and condensation pollution mainly adopts air-insulated switchgear equipment. [0004] 2. For power systems with a rated current ≤ 630A, where dust and condensation are serious, especially residential power distribution systems, solid-state insulation or gas-insulation high-voltage switchgear equipment is mainly used. This kind of cabinet is limited by the use of space,...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a fully insulated and fully sealed handcart-type high-voltage isolating switchgear, which solves the problems of reduced insulation capacity caused by severe dust pollution and easy condensation use environment, and solves the problems of existing solid insulation or gas insulation. The problem of weak current-carrying capacity of the incoming line switchgear or the bus tie switchgear of the insulated switchgear

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