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High-shock-resistance sulfur hexafluoride gas density relay

A technology of sulfur hexafluoride gas and density relay, applied in the direction of instruments, circuits, electrical switches, etc., can solve the problems of oil leakage, aging of sealing rings, loss of users, etc., and achieve easy popularization and application, good sealing performance, and guaranteed accuracy. Effect

Active Publication Date: 2013-12-18
SHANGHAI ROYE ELECTRICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The observation window (table glass) and the casing are sealed on the arc surface (or small arc surface), and the sealing effect is not good. In addition, the sealing ring will age, and oil leakage often occurs, which brings problems to users. loss, even security issues, so there is an urgent need for innovation

Method used

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  • High-shock-resistance sulfur hexafluoride gas density relay
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  • High-shock-resistance sulfur hexafluoride gas density relay

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Embodiment Construction

[0028] In order to better understand the technical solutions of the present invention, specific embodiments will be described in detail below in conjunction with the accompanying drawings.

[0029] see Figure 7 , the first high-vibration-resistant sulfur hexafluoride gas density relay of the present invention, includes a relatively independent signal control part and indication value display part, and the signal control part and indication value display part are installed or sealed in a sealed oil Inside the chamber 10 and the air chamber 25, the sealed oil chamber 10 is filled with anti-vibration oil 26 (silicon oil), and the oil chamber 10 and the air chamber 25 constitute the housing of the density relay. The air chamber 25 in this embodiment is nested in the oil chamber 10 .

[0030] The signal control part includes control Baden tube 3A, control temperature compensation element 4A, base 5, signal generator, three signal adjustment mechanisms 111, 112, 113, control end s...

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Abstract

The invention discloses a high-shock-resistance sulfur hexafluoride gas density relay which comprises a shell body, a signal control part and an indicating value displaying part, wherein the signal control part and the indicating value displaying part are arranged in the shell body and are relatively independent, the shell body comprises an airtight oil chamber used for installing the signal control part and an air chamber used for installing the indicating value displaying part, the oil chamber and the air chamber are connected and relatively independent, and the oil chamber is filled with shock-resisting oil. The high-shock-resistance sulfur hexafluoride gas density relay has the advantages of being free of oil leakage, good in shock resistance, high in precision, good in electrical performance, and long in service life.

Description

technical field [0001] The invention relates to a high-vibration-resistant sulfur hexafluoride gas density relay. Background technique [0002] At present, oil-free gas density relays with micro switches as contacts are commonly used to monitor the gas density of sulfur hexafluoride in electrical equipment of sulfur hexafluoride (see figure 1 ), although the microswitches used in this sulfur hexafluoride gas density relay have the advantages of good electrical performance, but since the microswitches all have operating arms 1011, 1021, 1031, and their displacement is limited, the accuracy is poor . What is more prominent is that the length of the contact operating arm 12 on its structure is relatively long, and it is a cantilever beam. When the sulfur hexafluoride switch is operated, the contact operating arm 12 vibrates very much, which in turn causes sulfur hexafluoride gas to The density relay malfunctions, or even destroys the micro switch, completely losing its perfor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H35/36H01H35/28
CPCG01L7/043G01L7/048H01H35/28H01H35/36
Inventor 金海勇苏丽芳金海生
Owner SHANGHAI ROYE ELECTRICAL CO LTD
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