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

Protective circuit switch with time-delay trigger

A technology of circuit protection and switching, which is applied in the field of circuit protection switches and can solve problems such as extended disconnection time and fire

Inactive Publication Date: 2007-06-20
SIEMENS AG
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the short-circuit has not been eliminated and the selective automatic device is switched on, that is to say the selective automatic device is switched on in the presence of a short-circuit, a significant delay in the disconnection time will result. Extended because the accumulator is not fully charged
High short-circuit currents subject the unit to extreme loads, which can even cause fires due to the thermoplastic housing

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
  • Protective circuit switch with time-delay trigger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The embodiments described in detail below are preferred embodiments of the present invention.

[0018] The main components of a 2-pole circuit protection switch are described with symbols in the circuit block diagram shown in Figure 1. The supply terminal V1 of the first pole is connected via the switch contact S1 to the load terminal L1. Likewise, the supply terminal V2 of the second pole is connected via the switch contact S2 to the load terminal L2. The two poles of the power supply system are connected to the supply terminals V1 and V2, and the corresponding load can be connected with its two poles to the two load terminals L1 and L2.

[0019] The two switch contacts S1 and S2 can be actuated via the switch button SC. The switch button SC receives a signal from the trigger unit A to open the switch contacts S1 and S2 as required. The triggering energy of triggering unit A comes from accumulator E.

[0020] The supply unit SV is connected at the input to a curren...

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 safe protective circuit breaker with time-delay release. Thereby, energy reservoir (E) for the release unit (A) is fed by a supply unit (SV) connected to the supply side, guaranteeing that the energy reservoir is always loaded independently of whether the switch contacts (S1,S2) of the circuit breaker are open or closed. Preferably other electronic components are supplied by power by the supply unit (SV) connected to the supply side.

Description

technical field [0001] The invention relates to a circuit protection switch. Circuit breakers of this type are generally used as Vorautomats in building installations. Background technique [0002] Circuit protection switches are typically connected in stages. An optional pre-automatic device is connected in front of multiple "ordinary" circuit breakers, thereby also basically performing the function of a circuit breaker. It must, however, have a certain selectivity with respect to the excessively high currents that occur. [0003] Selectivity means that the forward automatic device should not be opened equally for every opening of the downstream connected circuit breaker. This is necessary so that the remaining current circuits in which no short circuit occurs can still be supplied with current again after the short circuit circuit has been disconnected. However, since the circuit breaker does not open the switch contacts quickly after a short circuit occurs, the short ...

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
IPC IPC(8): H01H71/44
CPCH02H1/06H02H3/044H02H3/093
Inventor 汉斯-乔格·芬格伯恩哈德·弗朗兹
Owner SIEMENS AG