Miniaturized large-range gas density relay

A gas density, large range technology, applied in circuits, electrical switches, electrical components, etc., can solve the problems of large size of sulfur hexafluoride, difficult to achieve full range display range for small households, and small range display range, etc. The effect of miniaturized size, simple structure and reliable electrical performance

Active Publication Date: 2018-03-16
SHANGHAI ROYE ELECTRICAL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention provides a miniaturized large-range gas density relay, which is used to solve the problem that the prior art sulfur hexafluoride gas density relay has a large external dimension and a small range display range, and it is difficult to realize small-scale household and full-range display.

Method used

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Embodiment Construction

[0025] 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 creative efforts fall within the protection scope of the present invention.

[0026] A miniaturized large-range gas density relay, including: a junction box, a junction seat, a cable outlet, a signal mechanism and a display mechanism connected together;

[0027] The signal mechanism is equipped with a bellows for detecting the gas density in the sulfur hexafluoride electrical equipment and a micro switch as a contact point;...

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Abstract

The invention discloses a miniaturized large-range gas density relay comprising a signal mechanism and an indicating value display mechanism which are connected together. A bellows for detecting the density of gas in a sulfur hexafluoride electrical device and a microswitch serving as a contact are arranged in the signal mechanism. The indicating value display mechanism includes a display Bourdontube, a display temperature compensation element, a display end base, a machine core, a dial, a pointer and a display base. One end of the display Bourdon tube and one end of the display temperature compensation element are fixed to the display end base, the other end of the display Bourdon tube is connected to the display base, the other end of the display temperature compensation element is connected with the machine core sequentially through a display connecting arm and a display connecting rod or the other end of the display temperature compensation element is directly connected with the machine core, and the pointer is mounted on the machine core and arranged in the front of the dial. A junction box is fixed to a display base disc or a casing, the junction box is provided with a wiring base and a cable outlet, the vacuum degree can be displayed during vacuumizing, and the miniaturized large-range gas density relay is very easy to popularize and apply.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a miniaturized large-range gas density relay with the simplest structure, the smallest external dimensions and good production processability. 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 high-voltage sulfur hexafluoride electrical equipment generally uses Baden tubes and contacts It 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 high-voltage electrical equipment, it is necessary to have a holding mechanism and a reset mechanism after the signal action, and a high-vibration-resistant sulfur hexafluoride gas density relay that can realize the arc ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H35/36
CPCH01H35/36
Inventor 金海勇金海生郭正操贺兵
Owner SHANGHAI ROYE ELECTRICAL CO LTD
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