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首页> 外文期刊>Polymer Degradation and Stability >A STUDY OF DEGRADATION OF CELLULOSIC INSULATION MATERIALS IN A POWER TRANSFORMER .2. TENSILE STRENGTH OF CELLULOSE INSULATION PAPER
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A STUDY OF DEGRADATION OF CELLULOSIC INSULATION MATERIALS IN A POWER TRANSFORMER .2. TENSILE STRENGTH OF CELLULOSE INSULATION PAPER

机译：电力变压器中纤维素绝缘材料的降解研究2。纤维素绝缘纸的拉伸强度

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摘要

When cellulose insulation paper ages, its physical and chemical properties change, the paper loses its strength and becomes brittle. A study of the accelerated ageing of cellulosic insulation paper in insulation oil has been performed in the temperature range 129-166 degrees C under vacuum. The tensile strength of paper that has been subjected to accelerated ageing as well as of paper retrieved from a retired transformer were measured in the cross machine direction (CMD), The results were found to be consistent with the observed changes in the molecular weight of the insulation paper. The relationship between tensile strength and molecular weight has been delineated and correlated with information on the kinetics of degradation of the insulation paper. [References: 14]
机译：当纤维素绝缘纸老化时，其物理和化学性质改变，该纸失去强度并变脆。在真空下，在129-166摄氏度的温度范围内，对绝缘油中的纤维素绝缘纸的加速老化进行了研究。在机器横向（CMD）上测量了经过加速老化的纸张以及从退役变压器中取出的纸张的拉伸强度，发现结果与所观察到的纸张分子量变化一致。绝缘纸。已经描述了拉伸强度和分子量之间的关系，并与绝缘纸降解动力学的信息相关。 [参考：14]

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