Trip relay

A relay and tripping technology, applied in the direction of circuits, electrical components, parts of protective switches, etc., can solve problems such as increased apparent power

Inactive Publication Date: 2003-07-02
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the strong magnetization of the yoke by means of large permanent magnets also has a disadvantage: the

Method used

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Embodiment Construction

[0022] should be figure 1 , 2 , 3, 4, 5 and 6 a tripping relay 1 for a fault current protective switch shown at least partially, comprising a core or yoke 2 made of a soft magnetic material with a nickel content of 40%-85%, a permanent magnet 3 and a magnetic armature4. The yoke 2 with the bottom plate 5 leaning against the wall plate of the housing 6 includes supporting magnetic pole core legs 7 and coil magnetic pole core legs 8 respectively connected to the bottom plate 5 . The two pole core legs 7 , 8 end respectively in a pole face 9 , 10 lying on a plane, against which the magnetic armature 4 abuts. The magnetic armature 4 is a deflecting armature which can be pivoted about an edge 11 on the pole face 9 of the supporting pole core leg 7 . The edge 11 thus becomes the axis of rotation of the deflection armature 4 .

[0023] The deflection armature 4 is connected with a tension spring 12 as a tripping spring outside the yoke 2, and the tension spring exerts an active f...

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Abstract

The invention discloses a trip relay 1 comprising a magnetic circuit composed of a yoke 2 and a magnetic armature 4 as deflection armature, wherein the yoke 2 having a magnetic circuit coil limb 8 and a magnetic circuit pivot limb 7. In order to match the magnetic fluxes, the magnetic circuit pivot limb (7) and/or magnetic armature 4 has reducing cross section (15).

Description

technical field [0001] The invention relates to a tripping relay having a magnetic circuit formed by a yoke and an armature as deflection armature, wherein the yoke has two pole core legs, namely a coil pole core leg and a support pole core The deflection armature can be deflected around a rotation axis arranged between the deflection armature and the support pole core leg, so that the deflection armature and the support pole core leg respectively become the iron core in the magnetic circuit close to the center of rotation. Background technique [0002] Such a tripping relay, such as that disclosed in "Journal of Electrical Technology" (etz) Vol. In a fault current (FI) protective switch or a differential current (DI) protective switch. In this case, such an FI and DI circuit breaker has, in a similar manner, a main current transformer, through the transformer core of which all current conductors of a line network pass. In the event of a fault current (Fehlerstrom), a trip...

Claims

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Application Information

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IPC IPC(8): H01H71/10H01H71/32
CPCH01H71/1054H01H71/323
Inventor 约瑟夫·赫希伯格马克西米利安·凯尔纳杰拉尔德·莱纳莱因哈德·施密德伯恩德·特劳特曼
Owner SIEMENS AG
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