High Elevation Influence on SF<sub>6</sub> Gas Density Relay and SF<sub>6</sub> Gas Charging Pressure of Electrical Equipment

LU Zi-qiang1; HU Hai-jian2

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High Elevation Influence on SF₆ Gas Density Relay and SF₆ Gas Charging Pressure of Electrical Equipment

更新时间：2025-05-17

- High Elevation Influence on SF₆ Gas Density Relay and SF₆ Gas Charging Pressure of Electrical Equipment
- High VoltageApparatus Vol. 45, Issue 4, Pages: 37-40+46(2009)
- 作者机构：
  
  1. 青海电力科学试验研究院
  2. 青海省电力公司生产部
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM586
- Published：2009
- 稿件说明：
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[1]路自强,胡海舰.高海拔对SF_6密度继电器及电器设备中SF_6充气压力值影响的研究[J].高压电器,2009,45(04):37-40+46.

LU Zi-qiang1, HU Hai-jian2. High Elevation Influence on SF₆ Gas Density Relay and SF₆ Gas Charging Pressure of Electrical Equipment[J]. High voltageapparatus, 2009, 45(4): 37-40+46.
[1]路自强,胡海舰.高海拔对SF_6密度继电器及电器设备中SF_6充气压力值影响的研究[J].高压电器,2009,45(04):37-40+46. DOI：

LU Zi-qiang1, HU Hai-jian2. High Elevation Influence on SF₆ Gas Density Relay and SF₆ Gas Charging Pressure of Electrical Equipment[J]. High voltageapparatus, 2009, 45(4): 37-40+46. DOI：

摘要

为了解决高海拔对SF6密度继电器的影响问题

选取本公司系统使用较多的3个厂家的SF6密度继电器

并在不同海拔条件下进行了试验

对海拔影响SF6密度继电器的原因进行了分析

得出海拔的影响实质是大气压的影响。并提出了解决措施:在现场应将SF6密度继电器的充油螺丝打开

使其表壳内的气体与当地大气压平衡

然后再拧紧

再进行检验、投入使用;对高海拔地区SF6电气设备的充气压力及SF6密度继电器动作值应进行修正。

Abstract

This paper analyzes the cause of elevation influence on SF6 gas density relay through choosing three different brands that are commonly used in Qinghai electric power system

and conducts a test at different elevations.It is found that the elevation influence is actually the influence of air pressure.A solution to the elevation influence problem is proposed

which includes unbolting the oil charging screw of SF6 gas density relay in field

and retightening it as the gas pressure inside the shield equals to atmospheric pressure

then conducting test and putting the delays into operation.

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High Elevation Influence on SF6 Gas Density Relay and SF6 Gas Charging Pressure of Electrical Equipment

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Abstract

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High Elevation Influence on SF₆ Gas Density Relay and SF₆ Gas Charging Pressure of Electrical Equipment