State Management System of SF<sub>6</sub> UHV GIS Under Low Ambient Temperature

TIAN Yang; LIU Ying; WANG Ninghua; LAN Jian; CUI Boyuan

doi:10.13296/j.1001-1609.hva.2019.06.011

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State Management System of SF₆ UHV GIS Under Low Ambient Temperature

更新时间：2025-04-26

- State Management System of SF₆ UHV GIS Under Low Ambient Temperature
- High VoltageApparatus Vol. 55, Issue 6, Pages: 79-85(2019)
- 作者机构：
  
  1. 中国电力科学研究院
  2. 国家电网公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2019.06.011
  CLC： TM595
- Published：2019
- 稿件说明：
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[1]田阳,刘颖,王宁华,兰剑,崔博源.低环温下特高压GIS设备SF_6气体状态管理系统研究[J].高压电器,2019,55(06):79-85.

TIAN Yang, LIU Ying, WANG Ninghua, et al. State Management System of SF₆ UHV GIS Under Low Ambient Temperature[J]. High voltageapparatus, 2019, 55(6): 79-85.
[1]田阳,刘颖,王宁华,兰剑,崔博源.低环温下特高压GIS设备SF_6气体状态管理系统研究[J].高压电器,2019,55(06):79-85. DOI： 10.13296/j.1001-1609.hva.2019.06.011.

TIAN Yang, LIU Ying, WANG Ninghua, et al. State Management System of SF₆ UHV GIS Under Low Ambient Temperature[J]. High voltageapparatus, 2019, 55(6): 79-85. DOI： 10.13296/j.1001-1609.hva.2019.06.011.

摘要

特高压GIS设备中大量采用纯净SF

气体作为绝缘和灭弧介质。SF

气体的温度、湿度、纯度及其分解产物是影响特高压GIS设备可靠性重要因素之一。随着特高压工程大规模建设

出现极低温站址

此环境下SF

气体易液化和出现高概率内部放电故障

严重影响特高压电网安全稳定运行。为提高低环温下特高压GIS设备运行可靠性

文中基于不同媒介热平衡理论和一定工况下气体状态方程

并采用红外温度采集、微量气体微积分分析及电化学检测技术设计一种新型SF

气体状态管理系统。同时介绍了系统功能、硬件结构和软件控制流程。通过现场应用

数据检测可靠、系统运行稳定

应用结果表明该新型SF

气体状态管理系统可确保低环温下特高压GIS设备安全稳定运行。

Abstract

The temperature

humidity

purity and decomposition products of SF

gas are important factors affecting the reliability of UHV GIS equipment. SF

gas is easy to liquefy and induce internal discharge failure at low ambient temperature toseriously threaten the safe and stable operation of UHV power grid. In order to improve the reliability of the GIS equipment at low ambient temperature

this paper designs a new comprehensively on-line monitoring system of SF

based onthe heat balance theory of different media and the gas state equation

in which the technologies of infrared temperature acquisitio

trace gas analysis viacalculus

and electrochemical measurement are used. In addition

it introduces the system function

the hardware structure

and the software control flow. Practical applications show that this system works stably

and the measurement data are reliable

indicating the new SF

state management system can ensure safe and stable operation of UHV GIS equipment at low ambient temperature.

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⁰

State Management System of SF6 UHV GIS Under Low Ambient Temperature

DOI：10.13296/j.1001-1609.hva.2019.06.011

摘要

Abstract

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State Management System of SF₆ UHV GIS Under Low Ambient Temperature