Current transformer and current transformer base

Abstract

The invention relates to a current transformer and a current transformer base. The current transformer base comprises a connecting barrel with the axis extending in the vertical direction, an upper end flange used for being connected with a current transformer body is arranged at the upper end of the connecting barrel, a patch board is mounted at the lower end of the connecting barrel, an annular molecular sieve is arranged in a barrel cavity of the connecting barrel, and inner holes of the molecular sieve form wire passing holes used for allowing wires correspondingly connecting the current transformer body with the patch board to pass through. The current transformer base is low in manufacturing cost.

Description

technical field [0001] The invention relates to high-voltage transformation equipment of a power system, in particular to a current transformer and a transformer base. Background technique [0002] Existing current transformer structures such as Figure 1-2 Shown: including the transformer body 1 and the transformer base 2 arranged at the bottom of the transformer body, the base includes a three-way pipe 4, and the three-way pipe includes a middle nozzle connected to the transformer body and two coaxial lines on the side In the nozzle, the end of one of the side nozzles is equipped with a molecular sieve 6 through the flange end cover, and the end of the other side nozzle is installed with a junction plate 5, and the outer cover of the tee pipe is provided with a protective cover 3. The problem with the existing transformer base is that the three-way pipe is an aluminum alloy casting, and its manufacturing cost is relatively high; at the same time, because the molecular siev...

AI Technical Summary

Problems solved by technology

The problem with the existing transformer base is that the three-way pipe is an aluminum alloy casting, and its production cost is relatively high; at the same time, because the molecular sieve is arranged on one side of the three-way pipe, the molecular sieve cannot be well dried. At the same time, in order to play a waterproof function, a protective cover must be provided around the tee pipe. Since the molecular sieve and the terminal board are located at both ends of the tee pipe, the protective cover must completely cover the two sides of the tee pipe. In order to play a waterproof role, this will increase the volume of the protective cover, which is not conducive to the production, transportation and installation of the protective cover; in addition, the protective cover also plays the role of bearing the weight of the transformer body itself, which requires that the protective cover has enough The structural strength further increases the structural size of the protective cover. When the transformer body is installed, the center of gravity of the transformer body is also high due to the large structural size of the protective cover, and the stability of the transformer body is not good. When there is wind, it is easy to be blown down, and safety accidents may occur

Images