能可靠判断、检测界内与界外毫安级零序电流及相间短路故障电流,实现自动切除单相接地故障和相间短路故障。
Can reliably determine, within the community and bounds detection ma level and zero-sequence current phase short circuit fault current, automatic removal of single-phase ground fault and phase fault.
根据配电网的结构特点,提出了一种基于故障补偿方法与实际相序表示方法相结合的配电网短路电流实用计算方法。
According to the feature of distribution network structure, a practical short circuit calculation method based on fault current compensation and actual phase sequence presentation is put forward.
根据负荷电压和短路电流可知电池瞬间欧姆电阻,从而判断电池装配过程是否正常;三参数与电池容量均无明确关系。
Load voltage and short circuit current can be used to determine the batterys instantaneous ohm internal resistance and to judge whether the course of assembling batteries was normal.
当采用两相电流差接线方式时,保护范围与短路类型和短路相别有关。
The protect range is relational to short circuit type and phase when phase differential current connection mode is adopted.
根据大量低压电弧短路实验的结果,用概率统计方法导出低压电弧短路时的电弧电压模型及电弧短路电流的计算公式。用这些公式计算的最小电弧短路电流与实验结果吻合。
This paper presents the model of arc voltage and the formula of calculation of arc current based on a large number of experiments of arc short circuit in low voltage networks.
电力半导体器件故障电流(特别是短路电流)的确认与及时有效保护,对电力机车交流装置的可靠工作至关重要。
Acknowledge and in time effective protection of power semiconductors from fault current is of utmost importance for the reliable operation of AC equipment on electric locomotive.
电力半导体器件故障电流(特别是短路电流)的确认与及时有效保护,对电力机车交流装置的可靠工作至关重要。
Acknowledge and in time effective protection of power semiconductors from fault current is of utmost importance for the reliable operation of AC equipment on electric locomotive.
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