定子线圈和棒在热循环应力下的质量评价

Conference Record of the 2006 IEEE International Symposium on Electrical Insulation Pub Date : 2006-06-11 DOI:10.1109/ELINSL.2006.1665338

H. Zhu, C. Morton, S. Cherukupalli

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引用次数: 13

摘要

本文介绍了我们最近在热循环(TC)测试中使用几种诊断工具对定子线圈和棒进行质量评估的经验。通过抽头测试、耗散系数测试、局部放电测试和电容测量等诊断测试来评估热循环测试期间和之后的绝缘状况。伴随诊断测试的热循环测试可以帮助识别线圈/棒的质量和性能缺陷。可以通过VE测试的棒/线圈在TC测试中可能有严重的分层和缺陷。由于目前的IEEE标准1310-1996中没有TC测试的合格/不合格标准，因此建议在TC测试之后进行电压耐久(VE)测试，作为定子线圈/棒质量评估的另一种合格/不合格标准

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Quality evaluation of stator coils and bars under thermal cycling stress

This paper presents our recent experience in quality evaluation of stator coils and bars during thermal cycling (TC) tests using several diagnostic tools. Diagnostic tests, such as tap tests, dissipation factor tests, partial discharge tests, and capacitance measurements were conducted to evaluate the insulation condition during and after thermal cycling testing. Thermal cycling tests accompanied with the diagnostic tests can help to identify defects in the quality and performance of coils/bars. Bars/coils which can pass a VE test may have severe delamination and defects during a TC test. Since there are no pass/fall criteria for TC testing in the current IEEE Std 1310-1996, voltage endurance (VE) testing following TC testing has been proposed as an alternative pass/fail criterion for quality evaluation of stator coils/bars

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Conference Record of the 2006 IEEE International Symposium on Electrical Insulation

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