New selective earth faults only current directional method for isolated neutral systems
作者: Granizo, R. Blanquez, F.R. Rebollo, E. Platero, C.A.
论文集英文名称: Environment and Electrical Engineering (EEEIC), 2012 11th International Conference on
来源数据库: IEEE会议论文
DOI: 10.1109/EEEIC.2012.6221420
原始语种摘要: In order to achieve total selectivity at electrical distribution networks it is of great importance to analyze the defect currents at ungrounded power systems. This information will help to grant selectivity at electrical distribution networks ensuring that only the defect line or feeder is removed from service. In the present work a new selective and directional protection method for ungrounded power systems is evaluated. The new method measures only defect currents to detect earth faults and works with a directional criterion to determine the line under faulty conditions. The main contribution of this new technique is that it can detect earth faults in outgoing lines at any type of substation avoiding the possible mismatch of traditional directional earth fault relays. This detection...
全文获取路径: IEEE 

  • ungrounded 涓嶆帴鍦扮殑
  • neutral 涓€х殑
  • method 鏂规硶
  • earth 鍦扮悆
  • substation 鍒嗗眬