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

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

Active Publication Date: 2008-04-30
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

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Embodiment Construction

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

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

[0043] One end of the rod 7 is pivotally connected to the first gear wheel 61 of the gear train 6 , the other end can slide in a groove 8 of a member associated with the rotation of the drum 5 .

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

[0045] The free end of the worm 9 is associated with a one-way bearing or free flywheel 11 which only allows the worm to rotate in one direction;...

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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 invention relates to an automatic reset and self-test device, in particular for residual current operated circuit breakers and the like. [0002] More particularly, the 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 known that residual current operated circuit breakers are commonly provided in domestic and industrial systems in order to avoid fault currents from causing 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 power to downstream loads. [0005] After the residual current operated circuit breaker is opened, the residual current operated circuit breaker must be reset once the correct working conditions for the system are restored. [0006] Because f...

Claims

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Application Information

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Patent Type & Authority Applications(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
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