Vibration and current monitoring for detecting airgap eccentricity in large induction motors
Vibration and current monitoring for detecting airgap eccentricity in large induction motors
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DOI：
10.1049/ip-b:19860022
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发表时间：
1986-05
期刊：
影响因子：
--
通讯作者：
J. Cameron;W. T. Thomson;A. B. Dow
中科院分区：
文献类型：
--
作者：
J. Cameron;W. T. Thomson;A. B. Dow
本文报告了一项研究进行检测大型三相感应电动机的气隙偏心。提出了采用统一的在线监测策略的思想，讨论了选择线电流和机架振动作为监测参数的原因。提出了一种理论分析，预测存在独特的签名模式的电流和振动频谱，这是唯一的特点偏心。理论预测得到了专用故障产生试验台和电站现场试验结果的验证。
The paper reports on a study carried out to detect airgap eccentricity in large 3-phase induction motors. The philosophy of using a unified online monitoring strategy is presented and the reasons for selecting line current and frame vibration as the monitored parameters are discussed. A theoretical analysis is presented which predicts the presence of unique signature patterns in the current and vibration spectra which are only characteristic of eccentricity. The theoretical predictions are verified by experimental results from a special fault producing test rig and on-site tests in a power station.