A vacuum air-conditioning and pressure-regulating tap-changer

Abstract

The invention relates to the technical field of a power switch, and specifically relates to a vacuum voltage-regulating and capacity-regulating tap switch with a novel structure. The vacuum voltage-regulating and capacity-regulating tap switch includes a fixing device, an operating mechanism, a switch assembly and a transmission assembly, wherein the operating mechanism and the switch assembly are fixed on the fixing device, and are connected through the transmission assembly; the fixing device includes an upper mounting plate, a lower mounting plate and an intermediate positioning plate; screw joint of the intermediate positioning plate is realized through a support bar; positioning pieces are arranged below the upper mounting plate; the operating mechanism includes a voltage-regulating and capacity-regulating operating mechanism, and is fixed above the upper mounting plate through screw joint; the transmission assembly includes hexagonal main shafts, transmission connecting levers, single head connecting levers, pins and connecting rods; the hexagonal main shafts sleeve the positioning pieces; the transmission connecting levers and the single head connecting levers sleeve the hexagonal main shafts; the single head connecting levers and double head connecting levers are connected with the switch assembly; the transmission connecting levers are connected with the operating mechanism; the switch assembly is vacuum explosion chambers, and is vertically and fixedly arranged above the mounting plate; and moving ends are connected with the connecting levers. The vacuum voltage-regulating and capacity-regulating tap switch with a novel structure has the advantages of being fine in the mechanical characteristics, reducing the production cost, and reducing the length of a lead wire.

Description

technical field [0001] The invention relates to the technical field of power switches, and is a device for adjusting capacity and voltage of a transformer, in particular to a vacuum air-conditioning and pressure-adjusting capacity-adjusting tap changer with a new structure. Background technique [0002] The current vacuum air-conditioning tap-changer adopts a double-break vacuum interrupter, which is directly connected to the permanent magnet mechanism. The permanent magnet mechanism drives the tap-changer to make a linear motion to realize the switching of the working position of the tap-changer, thereby achieving adjustment. The purpose of capacity regulation. The problems of this structure are: 1. It takes up a lot of space in the transformer, making the transformer relatively large; 2. It is necessary to lead out the wires from the side of the switch in advance to connect when the voltage regulating and capacity regulating transformer is assembled, and the lead wires are...

AI Technical Summary

Problems solved by technology

The problems with this structure are: 1. It takes up a lot of space in the transformer, making the transformer relatively large; 2. It is necessary to lead out the wires from the side of the switch in advance so that they can be connected during the assembly of the voltage-regulating and capacity-adjusting transformer, and the lead wires are long and heavy. Affect the performance of the tap changer; 3. The vacuum interrupter is placed horizontally, the moving end of the vacuum interrupter has a certain gap in the radial direction, and the moving end of the vacuum interrupter is affected by the gravity perpendicular to the moving direction during the movement process. Thus affecting the mechanical characteristics of the tap changer; 4. The manufacturing process requirements of the double-break vacuum interrupter are complex

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