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Sulfur hexafluoride gas density relay

A technology of sulfur hexafluoride gas and density relay, which is applied in circuits, electrical switches, electrical components, etc., can solve the problems of poor anti-vibration performance, and the inability of gas density relays to achieve high precision and low precision.

Inactive Publication Date: 2010-09-29
SHANGHAI ROYE ELECTRIC SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The arc extinguishing medium and insulating medium of sulfur hexafluoride electrical products are sulfur hexafluoride gas, and air leakage cannot occur. If there is air leakage, the reliable and safe operation of sulfur hexafluoride electrical products cannot be guaranteed.
Therefore, the gas density relay cannot achieve high precision, and the anti-vibration performance is poor, so it is difficult to ensure the reliable operation of the system
[0006] To sum up, the electrical performance of the current sulfur hexafluoride gas density relay is not good enough, or the contact contact is not stable enough, the working life is not long, or the anti-vibration performance is not good, it is difficult to ensure the reliable operation of the system, or the accuracy is not high, it is difficult to fulfil requirements

Method used

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  • Sulfur hexafluoride gas density relay
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  • Sulfur hexafluoride gas density relay

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Embodiment Construction

[0042] In order to better understand the technical solution of the present invention, the present invention will be described in detail below through specific embodiments in conjunction with the accompanying drawings:

[0043] see Figure 4 to Figure 10 , the first sulfur hexafluoride gas density relay of the present invention, including Bourdon tube 3, temperature compensating element 4 (bimetallic material is used in this case), machine base 5, displacement amplification mechanism 6, connecting rod 7, housing 8 , joint 9, micro switch 101, 102, 103, signal adjustment mechanism 111, 112, 113, connecting arm 13, end seat 14, wiring seat 15, watch glass 16, cover case 17, electric wire 21 and switch strengthening mechanism 24, In this embodiment, three microswitches 101, 102, 103 are used as signal generators for the gas density relay, and the gas density relay also has a dial 1 and a pointer 2 for displaying the indicated value.

[0044] The width of the Bourdon tube 3 is 25-...

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Abstract

The invention discloses a sulfur hexafluoride gas density relay, which comprises a shell, a base, an end base, a bourdon tube, a temperature compensating element, and a plurality of micro switches serving as signal generators of the gas density relay, wherein one end of the bourdon tube is connected to the base, while the other end is connected with one end of the temperature compensating element by the end base; the micro switches are arranged on the base or in the shell, and are provided with connection point operating handles; the gas density relay further comprises a displacement magnification mechanism, wherein the displacement magnification mechanism has an initial end which is connected with the other end of the temperature compensating element, and an amplifying end which drives the connection point operating handles of the micro switches to connect or disconnect connection points on the micro switches; and when a gas density value changes, the bourdon tube and the temperature compensating element displace, and the displacement is magnified by the displacement magnification mechanism and then transmitted to the micro switches to make the micro switches send corresponding signals. As a result, the function of the density relay is completed.

Description

technical field [0001] The invention relates to a gas density relay, in particular to a gas density relay applied to sulfur hexafluoride electrical equipment. Background technique [0002] Sulfur hexafluoride electrical products have been widely used in the power sector, industrial and mining enterprises, and promoted the rapid development of the power industry. Ensuring the reliable and safe operation of sulfur hexafluoride electrical products has become one of the important tasks of the power sector. The arc extinguishing medium and insulating medium of sulfur hexafluoride electrical products are sulfur hexafluoride gas, and no gas leakage can occur. If gas leakage occurs, the reliable and safe operation of sulfur hexafluoride electrical products cannot be guaranteed. Therefore, it is very necessary to monitor the sulfur hexafluoride density value of sulfur hexafluoride electrical products. At present, a mechanical pointer type sulfur hexafluoride gas density relay ( fi...

Claims

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Application Information

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IPC IPC(8): H01H35/32
CPCH01H33/563H01H35/36
Inventor 金海勇王金胜刘明杨小国朱月明
Owner SHANGHAI ROYE ELECTRIC SCI & TECH
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