中国电机工程学报
中國電機工程學報
중국전궤공정학보
ZHONGGUO DIANJI GONGCHENG XUEBAO
2014年
9期
1471-1480
,共10页
梅红伟%赵晨龙%戴罕奇%王黎明%关志成%张福增
梅紅偉%趙晨龍%戴罕奇%王黎明%關誌成%張福增
매홍위%조신룡%대한기%왕려명%관지성%장복증
染污绝缘子%湿润特性%温度%相对湿度%大气压
染汙絕緣子%濕潤特性%溫度%相對濕度%大氣壓
염오절연자%습윤특성%온도%상대습도%대기압
contaminated insulator%wetting characteristics%temperature%relative humidity%atmospheric pressure
研究染污绝缘子的湿润特性对完善其污闪机制有着重要意义。基于“混流法”和“水汽平衡法”的原理设计了可以准确控制环境温、湿度的污秽试验系统和精确控制环境温、湿度与气压的小环境系统,试验结果证实了这两系统具有良好的温、湿度控制效果。以设计的污秽试验系统和小环境系统为试验平台,详细研究了环境温度、环境相对湿度、大气压、污秽物中可溶盐的成分及含量、污秽物中惰性物质的成分及含量等对玻璃、瓷绝缘子湿润特性的影响,同时研究了含有蔗糖污秽绝缘子、自然污秽绝缘子和绝缘子不同部位的湿润特性差异,并分析了其机制。研究结果表明:除了大气压外,其他因素都对染污瓷和玻璃绝缘子的湿润特性有明显影响。
研究染汙絕緣子的濕潤特性對完善其汙閃機製有著重要意義。基于“混流法”和“水汽平衡法”的原理設計瞭可以準確控製環境溫、濕度的汙穢試驗繫統和精確控製環境溫、濕度與氣壓的小環境繫統,試驗結果證實瞭這兩繫統具有良好的溫、濕度控製效果。以設計的汙穢試驗繫統和小環境繫統為試驗平檯,詳細研究瞭環境溫度、環境相對濕度、大氣壓、汙穢物中可溶鹽的成分及含量、汙穢物中惰性物質的成分及含量等對玻璃、瓷絕緣子濕潤特性的影響,同時研究瞭含有蔗糖汙穢絕緣子、自然汙穢絕緣子和絕緣子不同部位的濕潤特性差異,併分析瞭其機製。研究結果錶明:除瞭大氣壓外,其他因素都對染汙瓷和玻璃絕緣子的濕潤特性有明顯影響。
연구염오절연자적습윤특성대완선기오섬궤제유착중요의의。기우“혼류법”화“수기평형법”적원리설계료가이준학공제배경온、습도적오예시험계통화정학공제배경온、습도여기압적소배경계통,시험결과증실료저량계통구유량호적온、습도공제효과。이설계적오예시험계통화소배경계통위시험평태,상세연구료배경온도、배경상대습도、대기압、오예물중가용염적성분급함량、오예물중타성물질적성분급함량등대파리、자절연자습윤특성적영향,동시연구료함유자당오예절연자、자연오예절연자화절연자불동부위적습윤특성차이,병분석료기궤제。연구결과표명:제료대기압외,기타인소도대염오자화파리절연자적습윤특성유명현영향。
Research on the wetting properties of contamination insulator is important to improve the mechanism of pollution flashover. In this paper, a contamination test system was designed to control the temperature and the relative humidity accurately and a small environmental system was designed to control the temperature, relative humidity and air pressure accurately. The humidity control principle of the contamination test system was based on the “mixed moisture method"and that of the small environmental system was based on the"moisture balance method". The test results confirm that the two systems have good temperature and humidity control accuracy. Based on the contamination test system and the small environmental system, the influences of the environmental temperature, the environmental relative humidity, the environmental pressure, the composition and content of soluble salts, the composition and content of non-soluble deposits, contamination containing sugar, natural contamination and different parts of contaminated insulators were investigated by artificial pollution tests and the corresponding mechanisms were analyzed in detail. The test results show that the influences of other factors in addition to the pressure on the wetting characteristics of contaminated porcelain and glass insulators are very obvious.