保护可调速度驱动装置的考虑

B. Pandya, D. Haas, Anil M. Pandya, Lulian Constantin
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引用次数: 0

摘要

随着可调速度驱动器的使用越来越受欢迎,必须对可调速度驱动器组件进行额外的考虑。对于中高压应用,其中一些考虑如下:•被驱动电机的热保护。•降低电机层面的故障电流水平。•采用非传统的多腿变压器为驱动器供电。•介绍谐波电流和电压。本文讨论了如何通过将应用程序分解为特定组件来保护可调速驱动器安装:电机,驱动器,输入机构和馈线。本文简要介绍了调速驱动的优点和分类,然后概述了在不同电压水平下保护调速驱动馈线的考虑因素。分析了现实世界中高压源可调进给驱动的应用。还分享了选择保护参数的最佳设计实践。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Considerations for the Protection of Adjustable Speed Drive Installations
As the use of adjustable speed drives increases in popularity, additional considerations must be made for adjustable speed drive assemblies. For medium- and high-voltage applications, some of these considerations are as follows:•Thermal protection of the motor being driven.•Decreased levels of fault current at the motor level.•Presence of unconventional multi-legged transformers to feed the drive.•Introduction of harmonic currents and voltages. This paper addresses how to protect an adjustable speed drive installation by breaking the application down into specific components: motor, drive, input mechanism, and feeder. The paper provides a brief background on the advantages and classifications of adjustable speed drives, followed by an overview of considerations for protecting adjustable speed drive feeders at different voltage levels. A real-world adjustable feed drive application fed from a high-voltage source is analyzed. Best design practices for selecting protection parameters are also shared.
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