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Emergency disconnect devices, emergency disconnect kits and switchgear equipment

A technology of emergency disconnection and switchgear, applied in the direction of power devices, electric switches, electrical components, etc. inside the switch

Active Publication Date: 2016-08-24
ABB (SCHWEIZ) AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Although this internal manual disconnect device performs in a rather satisfactory manner, there is still room for further improvement

Method used

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  • Emergency disconnect devices, emergency disconnect kits and switchgear equipment
  • Emergency disconnect devices, emergency disconnect kits and switchgear equipment
  • Emergency disconnect devices, emergency disconnect kits and switchgear equipment

Examples

Experimental program
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Effect test

Embodiment Construction

[0022] Refer to attached picture , shows an emergency disconnection device 1 suitable for manually disconnecting a switchgear, in particular a contactor comprised in a medium voltage switchgear, wherein, for the purposes of this application, the term "in "Voltage" refers to applications ranging from 1KV up to tens of KV, such as 52KV.

[0023] In particular, the emergency disconnection device 1 is portable and can be easily operated by an operator in an emergency situation to manually disconnect the contactor without having to cut off the medium voltage.

[0024] In particular, the emergency disconnection device 1 mechanically actuates an electromagnetic actuator, more precisely a displacement mechanism of the electromagnetic actuator mechanically linked to a movable electrical contact of the contactor.

[0025] The emergency disconnection device 1 comprises a striker lever element 5 adapted to transmit a breakout force to such a displacement mechanism to separate the movable...

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PUM

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Abstract

An emergency disconnection device adapted to manually disconnect a switchgear, the emergency disconnection device comprising: a striker lever device for transmitting a disconnection impact force to a switchgear operatively connected to said switchgear Electromagnetic actuator for electrical contacts; guide housing adapted to be placed on the exterior of a housing in which said switching device is accommodated, the guide housing being configured for operation along the direction of operation slidably housing and guiding the striker rod assembly; and energy stored propulsion means for advancing the striker rod device in response to an operator's external trigger command to apply a breakaway impact force to the electromagnetic actuator . The energy storage propulsion device is configured to impart a linear jerk to the striker rod arrangement along an operational direction, the linear jerk having at least a kinematic parameter independent of an external trigger command.

Description

technical field [0001] The present disclosure relates to an emergency disconnection device suitable for manually disconnecting a switching device, in particular manually disconnecting a contactor. Background technique [0002] In medium voltage applications it is known to use multi-phase contactors to deliver and break current. Such contactors are configured for switching on / off eg electric motors in several fields such as industry, services, marine and other harsh environments. A multi-phase contactor includes, for each phase, a fixed contact and a movable contact positionable between an open position and a closed position in which the movable contact operatively connects with the fixed contact Separated, the movable contact is operatively connected to the fixed contact in the closed position. [0003] The movable contact is actuated to move between an open position and a closed position by an electromagnetic actuator powered by an auxiliary power source. A number of imp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H3/30
CPCH01H3/3052
Inventor 奥斯瓦尔多·普雷斯蒂尼拉温德拉·博尔泽
Owner ABB (SCHWEIZ) AG