| 应用极化谱分析油纸变压器绝缘纸板水分含量的研究 |
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| 引用本文： | 张涛,蔡金锭.应用极化谱分析油纸变压器绝缘纸板水分含量的研究[J].电工电能新技术,2009,28(4). |
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| 作者姓名： | 张涛 蔡金锭 |
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| 作者单位： | 福州大学电气工程与自动化学院,福建福州,350108 |
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| 摘 要： | 油纸绝缘电力变压器受潮会加速固体绝缘材料老化,严重影响其运行寿命,因此评估变压器的绝缘纸板中的水分含量对确保其安全可靠运行具有重要意义.变压器绝缘纸板中的水分含量是评估其是否受潮和老化的重要指标之一,然而传统的化学分析方法需要在实验室环境下进行,有些甚至需要获取变压器内部纸样.基于回复电压的极化谱方法是一种无损的绝缘诊断方法,已经被用来评估变压器的绝缘状态,特别是绝缘纸板的水分含量.本文研究了回复电压极化谱评估变压器纸绝缘的受潮的有效性,提出了评估的判断方法.试验结果表明利用极化谱的主时间常数评估其水分含量是有效的.
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| 关 键 词： | 回复电压 绝缘评估 绝缘纸 水分含量 介电特性 |
Research on moisture content analysis of insulation pressboard in oil-paper transformer using polarization spectrum |
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| ZHANG Tao,CAI Jin-ding.Research on moisture content analysis of insulation pressboard in oil-paper transformer using polarization spectrum[J].Advanced Technology of Electrical Engineering and Energy,2009,28(4). |
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| Authors: | ZHANG Tao CAI Jin-ding |
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| Affiliation: | ZHANG Tao,CAI Jin-ding(College of Electrical Engineering , Automation,Fuzhou University,Fuzhou 350108,China) |
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| Abstract: | The insulation fault diagnosis of power transformers is important to guarantee the safe and stable operation of the power system.Moisture and aging degree of oil-paper insulated power transformer has a sure influence on its insulation property.The water content in insulation pressboard is considered as an important indicator of insulation quality and the aging condition.Although chemical analyses can provide direct information on parameters,most chemical analyses must be performed under laboratory condition... |
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| Keywords: | return voltage condition assessment insulation paper water content dielectric response |
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