Open-type current information acquisition transformer

Abstract

The invention discloses an open-type current information acquisition transformer, which comprises a shell and an iron core, wherein the shell comprises an upper shell and a lower shell; the iron core comprises an upper L-shaped iron core and a lower L-shaped iron core; a track cavity is arranged at one side of the upper shell; a connection terminal is arranged on the upper shell; a track is arranged at one side of the lower shell; the upper shell and the lower shell are provided with U-shaped fixed fork holders respectively; each U-shaped fixed fork holder is provided with a U-shaped fixed fork; the upper L-shaped iron core, a coil rack and a coil are arranged in an inner cavity of the upper shell; the coil is wound on the coil rack; the coil rack sleeves the transverse end surface of the upper L-shaped iron core; a lower L-shaped iron core and a buffer spring are arranged in the inner cavity of the lower shell; and the buffer spring is arranged at the lower part of the lower L-shaped iron core. By the open-type current information acquisition transformer, the condition that primary current is designed into kiloampere level while the secondary current ratio is small to milliampere level is achieved; the cost is reduced; the magnetic field loss is reduced; and the acquisition accuracy of the transformer is improved.

Description

technical field [0001] The invention relates to an open current information collecting transformer, which belongs to the field of electricity. technical background [0002] The main principle of the open-type current information acquisition transformer is to obtain the secondary current ratio through non-contact isolation magnetic field induction between the primary current and the secondary coil. The open current transformer can be divided into upper and lower half shells, and two half L-shaped iron cores are installed in the upper and lower half shells, the two iron cores can be pulled together and opened, and half of the iron cores are equipped with electromagnetic coil. At present, open current transformers are mostly used in power equipment. Its main function is to complete the installation and current information sampling of existing fixed copper busbars or wires without modifying the original equipment, so as to realize the operation of electric energy. Quality an...

AI Technical Summary

Problems solved by technology

Since the traditional open current transformer needs to install a secondary instrument on the intelligent terminal for collecting information, this will not only increase the cost, but also reduce the collection accuracy

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