In the past 15 years, insurance industry data have indicated that stator end-winding vibration has become the most important cause of generator failure. The source of vibration is the current creating magnetic forces between coils, and it may be amplified due to mechanical resonance. End-winding vibration leads to failure by insulation abrasion or copper fatigue cracking. The extent of the repair caused by the ensuing damage and the loss of production have proven to be very costly.

中文翻译：

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二极电机定子绕组端部振动：避免发电机故障

过去15年，保险行业数据表明，定子端部绕组振动已成为发电机故障的最重要原因。振动源是在线圈之间产生磁力的电流，它可能由于机械共振而被放大。绕组端部振动会导致绝缘磨损或铜疲劳开裂而导致故障。事实证明，由随后的损坏和生产损失造成的维修成本非常高。