| 引用本文: | 王晓剑,吴广宁,李先浪,高 波,彭 倩,赵 虎.酸值对变压器油纸绝缘系统回复电压参数影响规律研究[J].电力自动化设备,2013,33(12): |
| WANG Xiaojian,WU Guangning,LI Xianlang,GAO Bo,PENG Qian,ZHAO Hu.Influence of acid value on recovery voltage parameters of transformer oil-paper insulation system[J].Electric Power Automation Equipment,2013,33(12): |
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| 摘要: |
| 为研究酸值对回复电压参数的影响规律，制作一套变压器简化模型，用25 #变压器油和普通纤维素纸作为油纸复合绝缘，进行老化实验。结果表明：绝缘纸中酸值与老化时间呈线性函数关系，变压器油中酸值与老化时间呈指数函数关系；回复电压最大值随绝缘纸中酸值增加呈线性规律增大，中心时间常数随绝缘纸中酸值增加呈指数规律减小，初始斜率随绝缘纸中酸值增加呈指数规律增大。 |
| 关键词: 变压器 回复电压法 酸值 聚合度 回复电压最大值 中心时间常数 初始斜率 模型 绝缘 |
| DOI： |
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| 基金项目:四川省电力公司项目（2011-5101-05-000842） |
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| Influence of acid value on recovery voltage parameters of transformer oil-paper insulation system |
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WANG Xiaojian1, WU Guangning1, LI Xianlang1, GAO Bo1, PENG Qian2, ZHAO Hu1
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1.School of Electrical Engineering，Southwest Jiaotong University，Chengdu 610031，China;2.State Grid Sichuan Province Electric Power Company Electric Power Research Institute，Chengdu 610072，China
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| Abstract: |
| A simplified model of transformer is set up to research the influence of acid value on recovery voltage parameters. 25# transformer oil and ordinary cellulose paper are used as oil-paper composite insulation in aging experiment and results show that，the relationship between the acid value of insulating paper and the aging time is a linear function while that between the acid value of transformer oil and the aging time is an exponential function；along with the increase of insulating paper acid value，the maximum recovery voltage increases linearly，the central time constant decreases exponentially and the initial slope increases exponentially. |
| Key words: electric transformers recovery voltage measurement acid value polymerization degree maximum voltage recovery central time constant initial slope models insulation |
