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首页> 外文期刊>Hydrotechnical Construction >ANALYSIS OF MEASURES THAT EXCLUDE THE NON-SELECTIVE ACTIONS OF DIFFERENTIAL COLLECTING BUSBAR PROTECTION IN EXTERNAL TWO-PHASE SHORT CIRCUITS WITH THE SATURATION OF CURRENT TRANSFORMERS INCLUDED IN FAULT-FREE PHASES
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ANALYSIS OF MEASURES THAT EXCLUDE THE NON-SELECTIVE ACTIONS OF DIFFERENTIAL COLLECTING BUSBAR PROTECTION IN EXTERNAL TWO-PHASE SHORT CIRCUITS WITH THE SATURATION OF CURRENT TRANSFORMERS INCLUDED IN FAULT-FREE PHASES

机译：排除外部两相短路中差分收集母线保护的非选择性动作的措施分析，该措施与无故障阶段的电流变压器饱和度

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摘要

An analysis is made on the non-selective actuation of the differential protection of busbars with a voltage of 110 kV of an electrical distribution system substation in the transition mode of an external two-phase short circuit. The protection effect is found to be due to the saturation of the transformer cores of class P current included in fault-free phases. Methods are also analyzed to ensure the correct operation of protection in the considered mode, and methods for calculating the protection parameters at which these methods are workable are proposed.
机译：在外部两相短路的转换模式下，在外部两相短路的转换模式下，对汇流条的差分保护的差分保护的非选择性保护进行分析。发现保护效果是由于无故障阶段中包括的P类电流的变压器核心的饱和度。还分析了方法以确保在所考虑模式下进行正确的保护操作，并提出了计算这些方法是可行的保护参数的方法。

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