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Mechanical interlocking disc type incorrect operation preventing interlocking apparatus for high-voltage switch cabinet

A high-voltage switchgear and anti-misoperation technology, which is applied to substation/switchgear boards/panels/desks, electric switches, air switch components, etc., can solve the problems of lack of versatility and achieve simple structure and good versatility , The correct effect of the operation procedure

Active Publication Date: 2012-11-14
上海中科电气(集团)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Our company has developed a similar interlocking device and achieved certain results; however, judging from the existing interlocking device for high-voltage switchgear, it has insufficient versatility and can be improved in structure

Method used

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  • Mechanical interlocking disc type incorrect operation preventing interlocking apparatus for high-voltage switch cabinet
  • Mechanical interlocking disc type incorrect operation preventing interlocking apparatus for high-voltage switch cabinet

Examples

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Embodiment Construction

[0021] Specific embodiments of the present invention are given below in conjunction with the accompanying drawings.

[0022] A mechanical locking disc type anti-misoperation interlocking device for a high voltage switch cabinet of the present invention includes an interlocking control handle (mechanical locking disc) 01, a first crank arm 02, a pull rod 1, a pull plate 2, a swing arm bracket 3, and a rotating shaft 4. Rotary arm 5, joint plate 6, splint 7, main shaft 8, second crank arm 9, trip arm 10, lock arm 11, stop pin 12, pressure plate 13, micro switch 14, closing coil 15 (circuit breaker Attached), locking coil 16 (attached to the circuit breaker), left end arm 17 of the circuit breaker.

[0023] See attached figure 1 . The interlock control handle (mechanical locking disc) 01 is a handle with a lever structure, which is connected with one end of the first crank arm 02 to form an interlock control mechanism; the other end of the first crank arm 02 is pinned to the up...

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PUM

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Abstract

The invention relates to a mechanical locking-disc type misoperation-prevention interlocking device of a high-voltage switch cabinet, which comprises an interlocking control mechanism, a drag link, a pulling plate, a rotating-arm bracket, a rotating shaft, a rotating arm, a connecting plate, a splint, a mainshaft, a connecting lever, a tripping arm, a locking arm, a stop pin, a pressure plate, a microswitch and a circuit breaker connecting lever; a working position, a maintaining position and a control position of an operating position are arranged to ensure that an isolation switch and a circuit breaker can be interactively controlled through an interlocking way; when the operating position is in service, the interlocking device can ensure the mainshaft to drive the tripping arm and the locking arm to rotate so as to cause that a tripper trips and does tripping operation and the microswitch is cut off, thereby the hand-operated or electric closing operation of the circuit breaker cannot be carried out; and when the working position is in service, the stop pin moves forward to lock the locking arm, the mainshaft and the interlocking control mechanism, thereby the misoperation of the isolation switch can be prevented. The invention has the advantages that the isolation switch and the circuit breaker are automatically and interactively interlocked; in addition, the structure issimple, the mechanism is flexible, the function is reliable, the appearance is beautiful, the installation is convenient, and the commonality is better.

Description

【Technical field】 [0001] The invention relates to the technical field of high-voltage power supply equipment, in particular to a mechanical locking disc type anti-misoperation interlocking device of a high-voltage switchgear related to high-voltage complete switchgear. 【Background technique】 [0002] At present, in the high-voltage switchgear of power supply and distribution equipment, the power supply circuit is mainly composed of operating elements such as circuit breakers, isolating switches, and grounding switches, and measuring and protecting elements such as transformers. However, during the use of the current technology, short circuits or electric shocks may occur due to misoperation, resulting in equipment damage and casualties. According to the GB / T 3906-91 standard, the high-voltage switchgear should have five perfect anti-mistake functions: (1) anti-mis-opening and closing circuit breakers; (2) anti-mis-opening and closing disconnectors with load; Personnel mista...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H31/10H01H9/26H02B1/04
Inventor 陈庆钱程希安陈磊
Owner 上海中科电气(集团)有限公司
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