All-insulation solid ring network cabinet

Abstract

The present invention relates to an all-insulation solid ring network cabinet, which comprises a cabinet body formed by a transverse supporting plate, a longitudinal supporting plate, an upper panel and a lower panel. A mechanism box and a three-phase independent insulating barrel are arranged in the upper layer of the cabinet body. The top of the insulating barrel is provided with a bus sleeve. The lower end of the insulating barrel is provided with a lower outgoing sleeve. One side of the insulating barrel is provided with an umbrella ring. The umbrella ring is connected with the mechanism box. A cable chamber is arranged in the lower layer of the cabinet body. The upper panel on the front side of the cabinet body is provided with an isolation fracture. The back panel and the longitudinal supporting plate of the cabinet body are provided with a pressure releasing window. The lateral panel of the cabinet body is provided with an overhauling port. According to the invention, the all-insulation solid ring network cabinet adopts the composite insulating manner of the epoxy resin and the air-insulated, so that the all-insulation solid ring network cabinet is excellent, safe and stable in insulating performance. One side of the insulating barrel is provided with the umbrella ring, so that the insulating strength is increased. Based on the three-phase independent split design structure, the possibility of inter-phase short circuit is completely avoided. The all-insulation solid ring network cabinet is high in standardization degree, compact in structure, small in size, convenient in installation, strong in environment adaptability, environment-friendly and free of pollution.

Description

technical field [0001] The invention belongs to the technical field of 10kV distribution network equipment, and in particular relates to a fully insulated solid ring network cabinet. Background technique [0002] The current ring network equipment basically adopts air insulation or SF6 insulation. Due to the influence of the safety distance, the air-insulated ring network cabinet has a large volume, which occupies a large power distribution area and has a high degree of equipment aging. It is difficult to maintain long-term operation, the production, assembly and installation are cumbersome, and there are many non-standard solutions, which waste materials. , the production efficiency is low and the switch is greatly affected by the external environment when it is used. SF6 insulated ring main unit uses SF6 as the insulating medium, SF6 gas will be decomposed into toxic substances in the high-temperature breaking environment and it is inconvenient to recycle, and long-term u...

AI Technical Summary

Problems solved by technology

Due to the impact of the safety distance, the air-insulated ring main unit has a large volume, which occupies a large power distribution area and has a high degree of equipment aging. Long-term operation and maintenance are difficult, production, assembly and installation are cumbersome, and there are many non-standard solutions, which waste materials. , the production efficiency is low and the switch is greatly affected by the external environment when it is in use

SF6 insulated ring main unit uses SF6 as the insulating medium, SF6 gas will be decomposed into toxic substances in the high-temperature breaking environment, and it is inconvenient to recycle. Long-term use will pollute the natural environment, and SF6 gas is positive relative to atmospheric pressure Air pressure is easily affected by high altitude, humid environment, and various extreme and harsh climates. The use occasions are greatly restricted, which is not convenient for equipment operation and maintenance. At the same time, the air pressure of the box needs to be displayed with the aid of a barometer, which poses a potential safety hazard for operation.

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