Gas density relay and method for selecting width in manufacturing of Bourdon tube thereof

A technology of gas density and Baden tube, applied in the direction of circuits, electric switches, electrical components, etc., can solve the problems of insufficient strength, jamming or disengagement of the adjustment rod, displacement of the adjustment rod, etc., to improve the anti-vibration performance and improve the anti-vibration performance. Vibration performance and reliability, easy driving effect

Inactive Publication Date: 2009-12-30
SHANGHAI ROYE ELECTRIC SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] above SF 6 Although the micro switch used in the gas density relay has certain advantages, but due to this SF 6 The width of the Baden tube 6 used in the gas density relay is less than 19mm or even less than 19mm, and the strength is not enough. When the switch is opened and closed with strong vibration, it is easy to cause the adjustment rod to shift, and the adjustment rod is stuck or detached from the micro. The phenomenon of moving the switch operating arm cannot guarantee the reliable operation of the system

Method used

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  • Gas density relay and method for selecting width in manufacturing of Bourdon tube thereof
  • Gas density relay and method for selecting width in manufacturing of Bourdon tube thereof
  • Gas density relay and method for selecting width in manufacturing of Bourdon tube thereof

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Embodiment Construction

[0028] see image 3 , refer to Figure 4 , the gas density relay of the present invention mainly consists of joint (not shown in the figure), core 32, housing (not shown in the figure), dial (not shown in the figure), pointer 35, Baden tube 36, temperature compensation device 37 , in the present embodiment, the temperature compensating device 37 adopts a bimetal device, a terminal block (not shown in the figure), one or more adjusting rods and micro switches respectively correspondingly arranged, which can be one to four, In the example of present embodiment, there are three microswitches, and they are 391, 392 and 393 parts in the figure, printed circuit board 40, positioning plate 41, fixed plate 42, electric wire 43, and there are also three adjusting rods, which are 441, 442 and 443 parts among the figure, connecting rod 45, beam 46, watch glass, cover ring, base 50, backing plate 51, road pipe etc. are formed. The temperature compensation device 37 is used to correct th...

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PUM

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Abstract

The invention provides a gas density relay and a method for selecting width in manufacturing of a Bourdon tube thereof. The method comprises the step of matching the width and the inside diameter size range of the Bourdon tube, namely when the inside diameter is more than or equal to 25mm, the width of the Bourdon tube is between 12 and 30mm; when the inside diameter size is between 25 and 38mm, the width of the Bourdon tube is between 13.5 and 38mm; and when the inside diameter is between 55 and 80mm, the width of the Bourdon tube is between 20 and 40 mm. The gas density relay can be free from charging silicone oil, completely solves the problem of oil leakage, has the advantage of insusceptibility to vibration and can be well applied to SF6 electric equipment.

Description

technical field [0001] The invention relates to a relay, in particular to a relay used in SF 6 (Sulfur hexafluoride) Gas density relays on electrical equipment and methods of width selection for the manufacture of Baden tubes. Background technique [0002] SF 6 Electrical products have been widely used in the power sector, industrial and mining enterprises, and promoted the rapid development of the power industry. Guaranteed SF 6 The reliable and safe operation of electrical products has become one of the important tasks of the power sector. SF 6 The arc extinguishing medium and insulating medium of electrical products are SF 6 Gas, no air leakage can occur, if there is an air leakage, the SF cannot be guaranteed 6 Electrical products operate reliably and safely. So monitor SF 6 SF for electrical products 6 The density value is very necessary. Now used to monitor SF 6 Density generally adopts a mechanical pointer density relay, which has when SF 6 When an electri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H35/36
Inventor 畅银萍张吉玲稂业员金海勇
Owner SHANGHAI ROYE ELECTRIC SCI & TECH
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