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Straight-through current transformer

A current transformer and core-through technology, which is applied in the field of core-through current transformers, can solve problems such as damp damage at the access end of the current transformer, cumbersome disassembly and installation steps, and affecting work efficiency, so as to improve the sealing performance , improve the service life, reduce the effect of labor

Pending Publication Date: 2020-05-12
HENAN ZHUODA ELECTRIC
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Problems solved by technology

[0003] When the existing current transformer is in use, the staff need to carry out regular inspection and maintenance work, which leads to the staff needing to carry out cumbersome disassembly and installation steps, which affects people's work efficiency and increases the labor load, while the current transformer The access terminal is easily damaged by moisture return, which leads to the normal use of the current transformer and brings certain adverse effects to people's use process. Therefore, we propose a feed-through current transformer

Method used

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Embodiment Construction

[0026] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "another end" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, use a specific Azimuth configuration and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood ...

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Abstract

The invention discloses a straight-through current transformer which comprises a straight-through current transformer body, a sealing mechanism I is arranged on an outer surface of a front end of thestraight-through current transformer body, and a sealing mechanism II is arranged on an outer surface of a rear end of the straight-through current transformer body. The invention relates to the straight-through current transformer, through a set fixing mechanism, workers do not need to cooperate with tools, fixation and installation work can be completed, in addition, during later-period overhauland maintenance; the fixing mechanism only needs to be pulled out forcibly; workload of workers is reduced, the work efficiency is improved, the sealing mechanism I is arranged, an insulating sealingshell is fixed to a joint through a permanent magnet sheet to seal the joint, the sealing performance can be further improved through a U-shaped fixing groove and a U-shaped sealing ring while sealing is conducted, moisture absorption damage is prevented, the overall flame retardant property of the device can be improved, the service life of the device is effectively prolonged, and a better use prospect is brought.

Description

technical field [0001] The invention relates to the field of circuit components, in particular to a feedthrough current transformer. Background technique [0002] A current transformer is an instrument that converts a large current on the primary side into a small current on the secondary side based on the principle of electromagnetic induction. The current transformer is composed of a closed iron core and a winding. In the line of the measured current, so it often has all the current of the line flowing, the number of turns of the secondary side winding is relatively large, and it is connected in series with the measuring instrument and the protection circuit. When the current transformer is working, its secondary side circuit It is always closed, so the impedance of the measuring instrument and the series coil of the protection circuit is very small, and the working state of the current transformer is close to a short circuit. The current transformer converts the large cur...

Claims

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Application Information

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IPC IPC(8): G01R15/18H01F27/02
CPCG01R15/18H01F27/02
Inventor 柴留念张雪燕董会杰高伟阳
Owner HENAN ZHUODA ELECTRIC
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