名词
中文翻译：单相方向性短路继电器
同义词：
['single-phase directional short-circuit relay', 'single-phase directional short-circuit relay', 'single-phase directional short-circuit relay']
例句：
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1. This relay is designed to detect and protect against single-phase directional short circuits.
这个继电器被设计用来检测和保护免受单相方向性短路。
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2. The relay was used to switch the power from one phase to another during a power outage.
在停电期间，这个继电器被用来从一相切换到另一相供电。
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3. The relay's ability to detect and respond quickly to these types of faults is crucialfor maintaining safe electrical systems.
这种类型的故障检测和快速响应的能力对于维护安全电气系统至关重要。