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An iron core probe based inter-laminar core fault detection technique for generator stator cores

机译：基于铁心探针的发电机定子铁心层间铁心故障检测技术

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摘要

A new technique for detecting incipient interlaminar insulation failure of laminated stator cores of large generators is proposed in this paper. The proposed scheme is a low flux induction method that employs a novel probe for core testing. The new probe configuration, which uses magnetic material and is scanned in the wedge depression area, significantly improves the sensitivity of fault detection as well as user convenience compared to existing methods. Experimental results from various test generators tested in factory, field and lab environments under a number of fault conditions are presented to verify the sensitivity and reliability of the proposed scheme.
机译：提出了一种检测大型发电机叠片定子铁心初层间绝缘故障的新技术。所提出的方案是一种低通量感应方法，该方法采用了新型探针进行堆芯测试。与现有方法相比，使用磁性材料并在楔形凹陷区域进行扫描的新探针配置显着提高了故障检测的灵敏度以及用户的便利性。提出了在各种故障条件下在工厂，现场和实验室环境中测试的各种测试发生器的实验结果，以验证所提出方案的敏感性和可靠性。

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