Distance relay for electric power transmission lines
作者： Arun G. Phadke
DOI:
关键词:
摘要: A distance relay system for a three-phase electric power transmission line comprises means producing positive, negative and zero sequence symmetrical component voltages from the phase of line, voltage drops corresponding currents impedances line. Zero current in parallel mutual impedance between lines may be taken into account. Predetermined ratios changes are used to produce factor K ratio fault on length The single equation applies all ten conditions that can occur signal is produced when lies predetermined values. faulted ground faults identified. Particular expressions given.
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