Three-phrase integration solid insulating looped network switch device

Abstract

The invention discloses a three-phrase integration solid insulating looped network switch device. The three-phrase integration solid insulating looped network switch device comprises a bus line cone, an arc extinguish chamber, a solid closure pole, an isolation cutter, a switching on contact, a base, a main shaft and a phase line cone. A silicon rubber sealing sleeve is arranged between the bus line cone and the solid closure pole, the isolation cutter is fixed in the solid closure pole through the main shaft, the top of the isolation cutter is in electric connection with the arc extinguish chamber through the switching on contact, the isolation cutter is connected with an outlet part of the base, on end of the phase line cone is connected with the bottom of the base, the other end of the phase line cone is an outlet end, and a silicon rubber sealing layer is arranged between the phase line cone and the base. The three-phrase integration solid insulating looped network switch device is simple and compact in structure, an electric appliance connecting part adopts watch chain touch finger connection, the isolation cuter, the arc extinguish chamber and the switching on contact are sealed in the solid closure pole, sealing performance is good, no harmful substances can be generated during working process, environmental pollution is little, effect on electrical performance of a ring main unit from external environment is little, using stability of the device is improved for a certain extent, and service life of the device is prolonged.

Description

technical field [0001] The invention belongs to three-phase integrated solid insulation ring network switchgear. Background technique [0002] In the transformation and construction of urban and rural power grids in my country, the implementation of ring network power supply, that is, using cables, going underground, and forming a loop, can reduce power supply interruptions and improve power supply reliability. At the same time, it can also greatly reduce time-sensitive faults. In the process, a large number of SF6 switches are used in 60KV-40.5KV, which can complete arc extinguishing and insulation performance to a certain extent. However, due to the combination of SF6 and water, or under the action of high-power arc, spark discharge and corona discharge, it will decompose It is a substance that is toxic to the human body, and SF6 is also highly polluting to the environment and is not easy to maintain. It has been identified by the World Health Organization as one of the six ...

AI Technical Summary

Problems solved by technology

[0002] In the transformation and construction of urban and rural power grids in my country, the implementation of ring network power supply, that is, using cables, going underground, and forming a loop, can reduce power supply interruptions and improve power supply reliability. At the same time, it can also greatly reduce time-sensitive faults. In the process, a large number of SF6 switches are used in 60KV-40.5KV, which can complete arc extinguishing and insulation performance to a certain extent. However, due to the combination of SF6 and water, or under the action of high-power arc, spark discharge and corona discharge, it will decompose It is a substance that is toxic to the human body, and SF6 is also highly polluting to the environment and is not easy to maintain. It has been identified by the World Health Organization as one of the six harmful gases that are not friendly to the environment; on this basis, a solid insulating ring network has emerged cabinet, but the solid insulation structure of the prior art is complicated, and the overall sealing is poor, the use safety is low, and it is inconvenient to maintain.

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