High-pressure pneumatic isolating switch

Abstract

The invention provides a high-pressure pneumatic isolating switch and relates to the field of electric equipment. The high-pressure pneumatic isolating switch comprises a multi-level cylinder, a moving contact and a grading shield, wherein a middle flange is arranged on the cylinder; a limiting section is respectively arranged on each section of cylinder; the middle flange is limited and fixed by one limiting section; a hook piece is arranged at a connecting end of the cylinder barrel; a cover-shaped connector is connected with a piston rod end of the cylinder; an opening of the cover-shaped connector is faced to the cylinder; the moving contact is fixed on the cover-shaped connector; at least two hard wires are arranged between the cover-shaped connector and the middle flange; the two ends of the hard wires are respectively fixed with the middle flange and the cover-shaped connector; the grading shield is buckled on the moving contact; an opening through which the moving contact can enter or exit is formed on the middle part of the grading shield. The high-pressure pneumatic isolating switch is simple to use and occupies small area; the grading shield of the high-pressure pneumatic isolating switch is softly connected in or under the cover and is important to the uniform distribution of electric field; the high-pressure pneumatic isolating switch can obviously increase the insulation level of the isolating switch; the switch has the advantage of strong arc resistance.

Description

technical field [0001] The invention relates to the field of electrical equipment, in particular to the field of manufacturing technology of an isolating switch. Background technique [0002] High-voltage isolating switch is the most used equipment in power transmission and transformation lines. In the past two years, due to the limitation of outdoor environment and land area, many users have installed the switch in the limited indoor space. The existing isolating switch operation forms are manual operation and Two forms of electric operation. Manual operation is to move the operating mechanism by manpower, and then transmit the torque to the switch through the connecting rod, so that the switch can be opened and closed. This kind of operation is only suitable for close-range operation, and it cannot realize long-distance operation in the control room. Electric operation is to generate output torque through the motor, after the gear is decelerated, the torque is transmitte...

AI Technical Summary

Problems solved by technology

This kind of operation is only suitable for close-range operation, and cannot realize long-distance operation in the control room

Electric operation is to generate output torque through the motor, after the gear is decelerated, the torque is transmitted to the connecting rod, and then the torque is transmitted to the switch through the connecting rod, so as to realize the opening and closing of the switch. Although it can realize remote operation, there are two points Disadvantages: 1. The volume is large, and it takes up a lot of space when installing multiple sets, and the floor area is huge; 2. The structure is complex and expensive

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