A kind of open and close current transformer

By designing a rotatable mounting plate and limit frame/mount structure, the problem of reverse connection of the positive and negative electrodes of the current transformer is solved, simplified the wiring process and improved the convenience and accuracy of operation.

CN119510846BActive Publication Date: 2025-03-21HENAN AOMEI ELECTRIC CO LTD
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Patent Information

Application Number
CN202510072332.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2025-03-21
Estimated Expiration
2045-01-17

AI Technical Summary

Technical Problem

When using current transformers, staff are prone to reverse the positive and negative electrodes due to negligence, resulting in meter reading deviation and meter meter meter meter errors. The traditional wiring method is complicated, which increases the cumbersomeness after erroneous operation.

Method used

An open-closed current transformer is designed to directly switch the position of the docking rod by rotating the mounting plate, simplifying the docking process of the positive and negative electrodes, and through the coordination of the limit frame and the limit seat, ensuring that the rotation angle of the mounting plate is within the appropriate range and avoiding misconnection.

Benefits of technology

It realizes the rapid replacement of positive and negative electrode joints without removing the copper wire, reducing the possibility of misoperation and improving the convenience and accuracy of operation.

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Abstract

The invention relates to the technical field of current measurement, and discloses an open-and-closed current transformer, comprising a lower shell, wherein one side of the top of the lower shell is rotatably connected to an upper shell, a semi-circular iron core is embedded in the lower shell and the upper shell, a copper wire is wound on the iron core in the lower shell, both ends of the copper wire are fixedly connected to a docking joint, the docking joint is embedded on the outer wall of one side of the lower shell, a side of the lower shell close to the docking joint is rotatably connected to a mounting plate, both ends of the mounting plate close to the docking joint are fixedly connected to a docking rod, two limiting holes are provided on the mounting plate, two limiting seats are fixedly connected to one side of the lower shell close to the mounting plate, each limiting seat is aligned with the limiting hole on the same side thereof, a mounting groove is provided on the top and bottom of the limiting seat, and limiting blocks are slidably connected in the mounting groove. The open-and-closed current transformer can avoid the problem of the need to remove the wiring copper wire and then change the position for winding due to reverse connection of positive and negative poles, which leads to a more troublesome operation.
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