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Current transformers with replaceable heads

A technology of current transformer and head, applied in the direction of inductor, transformer/inductor shell, transformer/inductor coil/winding/connection, etc., can solve the problem of unideal and complex current transformer integrated with short-circuit equipment

Active Publication Date: 2020-04-07
PHOENIX CONTACT GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, in other application situations where the primary current can be easily cut off, a current transformer with an integrated short-circuit device is not ideal as this is too complex

Method used

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  • Current transformers with replaceable heads
  • Current transformers with replaceable heads
  • Current transformers with replaceable heads

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] figure 1 A first embodiment of a current transformer 1 according to the invention divided into a housing body 3 and a housing head 2 is shown. The figure is a perspective view and the housing head 2 is shown above its mounted position on the housing body 3 .

[0045] The housing head 2 comprises two connection contacts 4 , and when the housing head 2 is mounted, the secondary coil - not visible - can come into contact with the housing body 3 . As a mechanical part of the connection mechanism, the housing of the housing head 2 comprises a groove 5 into which the spring 6 of the housing body 3 can engage. In the illustrated embodiment, the groove 5 surrounds the housing head 2 and the spring 6 of the housing body 3 is correspondingly annular, so that the mounted housing head 2 does not move freely relative to the housing body 3 . The peripheral spring 6 prevents horizontal shearing of the housing head 2 relative to the housing body 3 and the engagement of the spring 6 t...

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PUM

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Abstract

The object of the invention is a current transformer comprising a secondary coil; connecting contacts (4) for establishing electrically conductive contact with the secondary coil from the outside; and having a housing body (3) and a housing head (2 ), wherein the secondary coil is accommodated in and / or attached to the housing body (3) and the connection contacts (4) of the secondary coil are provided on the housing head (2) . According to the invention, connection means are provided by which the housing head (2) and the connection contacts can be detachably connected mechanically or electrically to the housing body (3) and the secondary coil. Thereby, a current transformer is provided that is cost-effective in terms of production and flexible in terms of use.

Description

technical field [0001] The invention relates to a current transformer (current transformer), comprising a secondary coil; connection contacts for establishing electrically conductive contact with the secondary coil from the outside; and a housing with a housing body (3) and a housing head, wherein the secondary The coil is accommodated in and / or attached to the housing body and the connection contacts of the secondary coil are arranged on the housing head. Background technique [0002] Current transformers are commonly used to measure alternating current and operate according to the transformer principle. A transformer has a magnetic return circuit - usually a ferrite or iron core, around which the conductors of two different circuits are wound. When an alternating voltage is applied to one of the windings, a magnetic field builds up. When an alternating magnetic field passes through the coil, a voltage is induced, the level of which relative to the initially applied volta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F5/04H01F27/02H01F38/28H01F27/06
CPCH01F5/04H01F27/02H01F27/06H01F38/28G01R15/183H01F27/04H01F27/29H01F27/306H01F27/402
Inventor 卡斯滕·索纳安德烈斯·森格于尔根·霍拜因马库斯·贝克尔
Owner PHOENIX CONTACT GMBH & CO KG