Abstract

The method of diagnostics of turn-to-turn insulation, which is based on the model of the weakest link, i.e., an element of turn-to-turn insulation with the lowest electrical strength, has been suggested. To determine the weakest link, it is suggested to use the self-induction EMF property of inductance, in which each coil can generate voltage in the form of a pulse, the power of which can be controlled to prevent the destruction of insulation. The block diagram and algorithm of functioning of the microcontroller device that implements this method of diagnostics of the turn-to-turn insulation of an asynchronous motor have been presented. The experimental setup for studying the suggested method and the dependences of amplitude of self-induction EMF on the interrupting current for controlled inductances have been considered.

中文翻译：

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使用自感应电动势对异步电动机的匝间绝缘进行诊断

摘要

已经提出了基于最弱连接的模型的匝间绝缘的诊断方法，即，一种具有最低电气强度的匝间绝缘的元件。为了确定最弱的环节，建议使用电感的自感应EMF特性，其中每个线圈可以产生脉冲形式的电压，可以控制其功率以防止绝缘破坏。已经给出了实现该异步电动机匝间绝缘诊断方法的微控制器设备的功能框图和算法。考虑了研究建议方法的实验装置，并考虑了自感电动势的幅度对受控电感的中断电流的依赖性。