油下绝缘小模型试验结果向N倍大试验对象的转移

Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems Pub Date : 1962-04-01 DOI:10.1109/AIEEPAS.1962.4501372

T. Sie, O. Wohlfahrt

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引用次数: 9

摘要

为了优化大型变压器的尺寸，采用1 X 5 μsec(微秒)正极性波在简化模型上进行击穿试验。试验表明，随机样本的击穿电压分布符合高斯分布。假设基本高斯分布，可以明确地证明面积效应的有效性。对单个模型反复施加n次应力所得到的结果可以转移到比其大n倍的物体上的假设，无法通过试验得到证实。

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Transference of Test Results from Experiments on Small Models to N Times Larger Test Objects with Insulation under Oil

To dimension large transformers optimally, breakdown tests are carried out on simplified models using a 1 X 5-μsec (microsecond) positive polarity wave. Tests show that the distribution of breakdown voltages of a random sample is Gaussian. Assuming a basic Gaussian distribution, the validity of the area effect can be demonstrated unambiguously. The hypothesis that results obtained by repeatedly stressing a single model n times can be transferred to an object n times larger, cannot be confirmed by the tests.

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Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems

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