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Automatic reset and self-test device particularly for residual current operated circuit breakers and the like

An automatic reset, residual current technology, applied in the direction of switches, circuits, emergency protection devices, etc. operated by ground fault current

Active Publication Date: 2012-11-28
GEWISS SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, detection is not always performed due to inconveniences caused by forgetting and power outages, as we all know

Method used

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  • Automatic reset and self-test device particularly for residual current operated circuit breakers and the like
  • Automatic reset and self-test device particularly for residual current operated circuit breakers and the like
  • Automatic reset and self-test device particularly for residual current operated circuit breakers and the like

Examples

Experimental program
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Embodiment Construction

[0041] With reference to the above-mentioned figures, the device according to the invention, generally designated by the reference numeral 1, comprises a closed body 2, which has a conventional standardized shape and which forms at the back 3 means for cooperating with other devices, wherein said other devices are connected to the DIN rail ( not shown) associated.

[0042] The closed body 2 has on its front face a protrusion 4 in which a drive drum 5 is located, which is associated with a gear train 6 by means of a rod 7 .

[0043] One end of the lever 7 is pivotally connected to the first gear 61 of the gear train 6 and the other end is slidable in the slot 8 of the member associated with the rotation of the drum 5 .

[0044] The gear train 6 transmits the motion from the worm 9, which is driven by an electric motor 10, in particular a single-phase synchronous electric motor.

[0045] The free end of the worm 9 is associated with a one-way bearing or freewheel 11, allowing t...

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PUM

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Abstract

An automatic reset and self-test device, particularly for residual current operated circuit breakers and the like, comprising a containment body which can be coupled to an electrical device, such as a residual current operated circuit breaker provided with main contacts and secondary or auxiliary contacts, the containment body including a drum which is kinematically associated with the control for opening and closing the main contacts of the circuit breaker; characterized in that it comprises an electric motor suitable to drive a gear train by means of a worm screw, turning round in one direction only, for closing the main contacts and the secondary contacts.

Description

technical field [0001] The present invention relates to automatic reset and self-detection devices especially for residual current operated circuit breakers and the like. [0002] More particularly, the present invention relates to a device that allows automatic circuit detection and subsequent automatic reset of residual current operated circuit breakers. Background technique [0003] It is well known that circuit breakers operating with residual current are often provided in domestic and industrial systems so as to avoid fault current hazards to users and loads connected to the power lines. [0004] Essentially, a residual current operated circuit breaker opens the line when it detects the presence of a fault current, thereby interrupting the supply of power to downstream loads. [0005] After the residual current operated circuit breaker has been opened, the residual current operated circuit breaker must be reset once the correct operating conditions for the system are r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H71/00H01H71/70
CPCH01H2071/0278H01H71/462H01H71/70H01H83/04
Inventor D·伯萨特里S·皮亚内佐拉A·康塔尔迪
Owner GEWISS SPA