Gas density relay with alarm maintaining structure

A technology of gas density and relay, applied in the direction of circuits, electric switches, electrical components, etc., can solve the problems of not being able to maintain the alarm state, and achieve the effects of enhancing vibration resistance, ensuring accuracy, and overcoming small displacement

Active Publication Date: 2018-03-30
SHANGHAI ROYE ELECTRICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a gas density relay with a manual reset structure, which is used to solve the problem that the sulfur hexafluoride gas density relay in the field of medium voltage technology cannot maintain the alarm state after an overpressure alarm

Method used

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  • Gas density relay with alarm maintaining structure
  • Gas density relay with alarm maintaining structure
  • Gas density relay with alarm maintaining structure

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Embodiment Construction

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0040] figure 1 It is a partial cross-sectional schematic diagram of a high-vibration-resistant gas density relay according to Embodiment 1 of the present invention, as figure 1 As shown, the high-vibration-resistant gas density relay of Embodiment 1 of the present invention includes: a sealed air chamber surrounded by a housing 10, a watch...

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PUM

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Abstract

The invention discloses a gas density relay with an alarm maintaining structure. The gas density relay with the alarm maintaining structure comprises a signal mechanism and an indicating value displaymechanism, wherein the signal mechanism comprises a bellows, a microswitch controlled by the bellows to connect or disconnect, and an alarm maintaining structure maintaining the alarming state of themicroswtich; the indicating value display mechanism comprises a display terminal, a display Bourdon tube with one end connected with the display terminal, a movement mounted on a base and driven by the display Bourdon tube of the indicating value display mechanism, a pointer on the movement, and a dial scale. According to the gas density relay with alarm maintaining structure, by means of the alarm maintaining structure; once issuing an alarm, the microswitch can maintain an alarming state until relevant workers manually adjust a reset mechanism and accordingly the workers can detect arcing of electric equipment and timely process the electric equipment with arcing to ensure safe power operation.

Description

technical field [0001] The invention belongs to the field of electric power technology, and relates to a sulfur hexafluoride gas density relay, in particular to a gas density relay with a signal holding mechanism and a reset mechanism, which can realize the overpressure alarm holding function of electrical equipment. Background technique [0002] At present, the signal mechanism (signal control part) of the sulfur hexafluoride gas density relay used to monitor the density of sulfur hexafluoride gas in medium-voltage sulfur hexafluoride electrical equipment generally uses Baden tubes and adopts The contact is a magnetic-assisted contact, which has the disadvantages of poor contact and poor anti-vibration performance. It is difficult to ensure reliable and safe operation of the power grid, so innovation is urgently needed. As well as many medium-voltage electrical equipment, it is necessary to have a holding mechanism and a reset mechanism after the signal is activated, and a ...

Claims

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Application Information

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IPC IPC(8): H01H35/26H01H35/28H01H35/32
CPCH01H35/26H01H35/28H01H35/32
Inventor 金海勇夏铁新王恩林贺兵
Owner SHANGHAI ROYE ELECTRICAL CO LTD
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