Considering problem of the leading electrode of the Locomotive traction motor crack flaw, the eddy current testing method for leading electrode crack defect is researched in the paper.
针对机车牵引电机主极裂纹问题，本文深入地研究了用电涡流方法实现对主极裂纹检测的问题。
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The diesel locomotive still plays a leading role in Railway traction, and to improve the reliability of the use of diesel locomotives is imperative.