Gas-insulated common-box type ring main unit

Abstract

The invention belongs to the technical field of power equipment, and particularly relates to a gas-insulated common-box type ring main unit which comprises a cabinet body and a closed gas box. The gasbox is fixedly connected to the middle of the cabinet; a first pipe is fixedly connected in the air box, one end of the first pipe communicates with the interior of the air box, and the other end ishermetically connected with a pair of partitions; a piston is connected in the first pipe between the two partition plates in a sliding and sealing mode, and a set of first holes are evenly distributed in the circumference of the piston; a connecting rod is fixedly connected to the side, close to the end of the first pipe, of the piston, penetrates through the partition plate, extends out of the first pipe and is in sliding sealing connection with the partition plate. An eccentric wheel is rotatably connected to the position, corresponding to the first pipe, in the air box through a rotating shaft. A supporting rod is hinged between a rotating pin and a connecting rod, insulating gas in the gas tank is sucked through the piston and then stored in the gas storage ball, and therefore waste and pollution of the insulating gas are reduced.

Description

technical field [0001] The invention belongs to the technical field of electric power equipment, and in particular relates to a gas-insulated common box type ring network cabinet. Background technique [0002] With the continuous and rapid development of my country's social economy and the continuous improvement of people's living standards, power users have put forward higher requirements for power supply reliability, power quality and power supply security. Nowadays, the smart distribution network is vigorously promoted in China and is developing rapidly. As the main power equipment of the smart distribution network, the ring main unit can greatly improve the power supply reliability and economy of the distribution network, reduce labor intensity, improve management level and service quality, Promote the development of smart distribution network. [0003] There are also some technical solutions about ring network cabinets in the prior art. For example, a Chinese patent wi...

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Problems solved by technology

[0005] In order to make up for the deficiencies of the existing technology and solve the problem of the limited space of the cabinet in the prior art and the high insulation requirements for the electrical components connected to the high-voltage power supply, the gas box is usually used to cooperate with the insulating gas filled in the gas box to control the electrical components. Insulation is carried out to ensure the safe and normal operation of the cabinet. When the electrical components in the gas box are repaired and replaced in the prior art, the gas box needs to be opened, which will easily cause the leakage of the insulating gas SF6, pollute the environment, and waste the insulating gas problem, the present invention proposes a gas-insulated common box type ring network cabinet

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