Gas insulation voltage transformer cabinet

Abstract

The invention relates to a gas insulation voltage transformer cabinet. The gas insulation voltage transformer cabinet comprises a gas box and a main frame supporting the gas box; the gas box comprises a disconnecting switch and a voltage transformer; an alternating current three-phase line enters the gas box from a high-voltage wall bushing above a cabinet body of the voltage transformer cabinet, passes through the disconnecting switch and then is connected to a high-voltage wiring terminal, after passing through a fuse, the alternating current three-phase line is connected to a first iron core so as to be wound into a primary coil; and the primary coil is grounded through a primary resonance elimination coil wound on a second iron core after being subjected to three-phase synthesis. According to the gas insulation voltage transformer cabinet of the invention, the voltage transformer is arranged in the gas box, so that the problems of complex wiring, potential safety hazards and space waste caused by the layout of a voltage transformer cabinet in the prior art are solved.

Description

technical field [0001] The invention relates to the technical field of gas-insulated switchgear, in particular to a gas-insulated voltage transformer cabinet. Background technique [0002] Gas insulated voltage transformer cabinet usually adopts SF 6 Gas, N 2 As an insulating medium, gas or its mixed gas has the advantages of small size, high reliability and good safety, and is widely used in the field of medium voltage power distribution. The voltage transformer is the core equipment of the voltage transformer cabinet, which has the functions of measurement, power supply and protection. In the traditional gas-insulated voltage transformer cabinet, the gas box filled with insulating medium is set in the upper middle of the cabinet and there is an isolating switch inside. The box bushing enters the gas-insulated voltage transformer cabinet of the gas box, and is connected with the isolating switch through a conductor, and finally conducts with the bus bar. figure 1 shows ...

AI Technical Summary

Problems solved by technology

figure 1 shows a schematic structural diagram of a gas-insulated voltage transformer cabinet in the prior art, figure 1 The medium gas-insulated voltage transformer cabinet includes a gas box 1, a disconnector 11 and a voltage transformer 12, wherein the voltage transformer 12 is arranged at the lower part of the voltage transformer cabinet, and the voltage transformers in this layout need to be epoxy Only pouring can meet the insulation requirements, the wiring is complicated and has potential safety hazards, and there is also the problem of waste of space

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