A single-phase capacity-regulating switch for capacity-regulating transformers

Abstract

The invention belongs to the field of electrical technology, and discloses a single-type capacity adjustment switch for capacity adjustment transformers. A coil switching operation mechanism is formed by a fixed chute and an operating panel slidably arranged in the chute; the side wall of the chute is provided with The vertical chute corresponds to the vacuum interrupter, and the U-shaped moving part is provided with a guide rail groove corresponding to the vacuum interrupter. The two ends of the transformation shaft at the end of the opening and closing rod of the vacuum interrupter pass through the U-shaped moving The corresponding pair of guide rail slots are then assembled in the corresponding pair of vertical slide slots on the U-shaped bracket; the guide rail slots include two parts, the low section and the high section, which are used to drive the opening and closing of the vacuum interrupter respectively. . Through the design of the U-shaped bracket and the U-shaped moving part, and the combined arrangement of the guide rail grooves, the present invention realizes complex processes such as the synchronization of high and low voltage switching, the timing action of high voltage and low voltage switching, etc., with the simplest one-way driving action.

Description

technical field [0001] The invention belongs to the technical field of electricity and relates to capacity regulating transformer equipment in the power industry, in particular to a capacity regulating switch used on the capacity regulating transformer. Background technique [0002] The on-load capacity regulating transformer is a transformer with two types of rated capacity. According to the size of the load, use a special capacity adjustment switch to switch the connection mode of the transformer winding without cutting off the power supply, and then realize the switch between two different capacities of the transformer. [0003] The capacity regulating switch in the prior art has the following problems: the high voltage and low voltage contacts of the capacity regulating switch adopt a common oil chamber structure. During the capacity adjustment conversion process, both the high-voltage contacts and the low-voltage contacts generate arcs, which leads to damage to the con...

AI Technical Summary

Problems solved by technology

Although this kind of capacity regulating switch solves the problem of arc generation, it has a large number of parts, a complex structure, and a high failure rate.

Images