单词：relay protection
relay protection的用法和样例：
例句
- Hidden failures of relay protection are the main cause of transmission lines cascading trips.继电保护隐藏故障是造成输电线路连锁跳闸的主要原因。
- The approach given in the paper has practical value in the relay protection of UHV transmission line.所提出的方法对建立超高压输电线路高速继电保护具有重要意义。
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