Unlock instant, AI-driven research and patent intelligence for your innovation.

Adjustment method of trigger unit of safety switch

A technology of trigger unit and adjustment method, which is applied to the parts of the protection switch, the protection switch, and the adjustment of the protection switch conditions, etc., can solve the problems of insufficient adjustment range, scrapping of the circuit breaker, and inability to be adjusted, so as to achieve precise adjustment methods and production Cost reduction, effect of simple adjustment method

Active Publication Date: 2017-12-22
EATON IND (AUSTRIA) GMBH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the tester finds that the circuit breaker cannot be adjusted to meet the need for tripping, for example due to a limited adjustment range, the entire circuit breaker is scrapped and it has to be destroyed
Especially due to the fact that the electrical characteristics of the solder joints can end up being very different, the conventional adjustment ranges available are often not sufficient

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Adjustment method of trigger unit of safety switch
  • Adjustment method of trigger unit of safety switch
  • Adjustment method of trigger unit of safety switch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] Figures 1 to 3 Two different embodiments of a triggering unit 1 of a switching device are shown, wherein the triggering unit 1 has a first current path part 2 in the form of a magnetic trigger and wherein the triggering unit 1 has a second Two current path sections 4 , wherein one of the two current path sections 2 , 4 has at least one region 7 with a reduced cross section.

[0015] This reduces the production costs of the switching device, since the switching device is not completely wasted even when the triggering unit 1 cannot be adjusted. Such a switching device is furthermore equipped with a precisely adjustable tripping unit 1 and has reliable tripping properties, especially in the event of overcurrent.

[0016] Switching devices are circuit breakers designed to open one or several electrical contacts under certain conditions. Switching devices designed, for example, as miniature circuit breakers or circuit breakers are equipped with switching contacts and usua...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for adjusting a tripping unit (1) of a safety switch, wherein the tripping unit (1) has a first current path (2) as part of a magnetic tripping device (3), and In this case, the triggering unit (1) has a second current path (4) as part of the bimetallic triggering device (5). According to the invention, a specifiable test current is applied to said trigger unit (1), a shunt current in one of said two current path sections (2, 4) is measured, and said two current path sections (2, 4) , 4) The cross-section of one is reduced based on the magnitude of the measured shunt current.

Description

technical field [0001] The invention relates to an adjustment method for a trigger unit of a switchgear. Background technique [0002] There are switching devices that can have two triggers, one of which is designed as a magnetic trigger, in particular as an electromagnetic trigger, and the other trigger is designed as a thermal trigger, usually comprising a bimetallic part. trigger. A magnetic trigger trips the circuit breaker in a short circuit condition, while a thermal trigger trips the circuit breaker in an overcurrent condition. Thus, the triggering behavior in the case of overcurrent must obey clearly defined specifications. While magnetic triggers do not often require additional adjustments, thermal overcurrent triggers often do because small manufacturing and / or material tolerances can affect trigger operation. For this reason, the fully assembled switchgear is tested with high current in a test rig, and the bimetal part is manually adjusted with an adjusting scr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01H69/01H01H71/74
CPCH01H71/16H01H71/7427H01H69/01Y10T29/49004H01H69/00H01H71/12
Inventor 阿道夫·泰蒂克
Owner EATON IND (AUSTRIA) GMBH