The new phase-comparison principle is the main feature of the new distance relay.
全新的比相原理是新型距离继电器的主要特色。
Phase comparison method is used here.
采用的是相位比对方法。
Phase comparison protection where the comparison is made twice per cycle.
每周期比较两次的相位比较保护。对正半周和负半周各比较一次。
Phase comparison protection where the comparison is made twice per cycle.
每周期比较两次的相位比较保护。对正半周和负半周各比较一次。
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