Reasons of wrong actions of longitudinaldifferentialprotection of LCD-3A line are analyzed. Solutions and theoretic criteria are proposed.
详细分析LCD - 3a线路纵差保护误动的原因,提出解决的措施及理论依据。
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With the improvement of Marine power supply network and high requirement of the selective protection, longitudinaldifferentialprotection has more practical meaning in Marine power system.