PWM频率对剩余电流器件防触电保护效果的影响

S. Czapp
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引用次数: 16

摘要

本文对变速驱动电路中的畸变接地故障电流进行了频谱分析。评估了这些扭曲电流对纤颤效应的影响。讨论了在不同PWM频率的变速驱动电路中使用剩余电流装置防止触电的有效性。介绍了所提出的剩余电流器件的工作特性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The effect of PWM frequency on the effectiveness of protection against electric shock using residual current devices
In the paper spectral analysis of the distorted earth fault currents in circuits with variable speed drives is performed. The impact of these distorted currents on the fibrillation effect is evaluated. Effectiveness of protection against electric shock using residual current devices in circuits with variable speed drives for various PWM frequencies is discussed. Operational characteristic of the proposed residual current device is presented.
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