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Analysis of System Imbalance Due to Removal of a Failed Capacitor Unit in an Ungrounded Y-connected Capacitor Bank with One Series Group Per Phase

机译:每相一个系列组的不接地Y型电容器组中由于故障电容器单元的拆除而导致的系统失衡分析

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摘要

[[abstract]]System imbalance due to the removal of a failed capacitor unit in an ungrounded Y-connected capacitor bank with one series group per phase has been analyzed in detail in this paper. The distribution system imbalance as a result of the removal of one failed capacitor unit by its fuse is usually unexpected and unmanageable. Distribution engineers should pay more attention to this situation to lessen its impact on the system and equipment. A sample feeder was used to simulate a practical feeder under normal and abnormal operation conditions and when a failed capacitor unit is removed. In this practical system, the unbalanced situation which arose from the removal of one failed capacitor bank may result in the malfunction of protective relays, interference with the communication system, and deteriorating power quality. The simulation results indicate that the removal of a failed capacitor bank may significantly impact the system operation if the capacitor bank has only one series group. The outcomes are of value to distribution engineers to thoroughly realize the effects of the removal of a failed capacitor bank.
机译:[[abstract]]本文详细分析了由于移除了未接地的,Y相连接的电容器组(每相一个串联组)中出现故障的电容器单元而导致的系统不平衡。由于一个保险丝单元将一个失效的电容器单元卸下而造成的配电系统失衡通常是无法预料的,​​并且难以管理。配电工程师应更加注意这种情况,以减少其对系统和设备的影响。在正常和异常操作条件下以及移除故障的电容器单元时,均使用样品进料器来模拟实际的进料器。在这种实际系统中,由于拆除一个失效的电容器组而引起的不平衡状况可能导致保护继电器故障,对通信系统的干扰以及电能质量的下降。仿真结果表明,如果电容器组只有一个串联组,则去除故障的电容器组可能会严重影响系统运行。这些结果对配电工程师来说是非常有价值的,它可以使他们彻底了解拆除故障电容器组的效果。

著录项

  • 作者

    Chen Tsai-Hsiang;

  • 作者单位
  • 年度 2012
  • 总页数
  • 原文格式 PDF
  • 正文语种 en
  • 中图分类

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