摘要
近年来,高压交联聚乙烯电缆被广泛应用。随着电缆的绝缘等级越来越高,其耐压试验就显得格外重要。直流耐压很难发现电缆存在的缺陷,而工频交流耐压需要的试验设备容量大、体积大、提供的电源容量大,因此不适合在现场使用。应用串联变频谐振技术可以解决这类问题,实践中收到较好的效果。
In recent years,high-voltage cross-linked polyethylene cable has been widely used. With the cable insulation rating becoming higher and higher,its pressure test appears especially important. It is difficult to find the defect of cable by DC pressure test,and test equipment needed by the power frequency AC pressure test is large in capacity and volume,and provides high power capacity,so is not suitable to be used on the site. This article expounded that using serial variable frequency resonance technology can solve such problems and good resulted has been achieved in practice.
出处
《炼油与化工》
2008年第3期29-30,共2页
Refining And Chemical Industry
关键词
变频谐振
高压
耐压试验
variable frequency resonance
high-voltage
pressure test
