differential current protection meaning in Chinese
差动电流保护装置
差异电流保护
Examples
- Connection method includes single star and double star , relaying protection method includes open delta voltage protection , differential current protection , differential protection , neutral unbalance current protection etc
接线方式有单星或双星接线,继电保护方式有开口三角电压保护、差流保护、差压保护、中性点不平衡电流保护等几种形式。 - In order to improve the behavior of transformer protection that is incomplete at present in distinguishing magnetizing inrush current from fault current , the paper puts forward a kind of new principle of transformer differential protection after analyzing the characteristic of magnetizing inrush and active power consume of transformers . this protection uses differential protection based on positive sequence active power as a criterion to discriminate internal faults from magnetizing inrush , and ratio restraint differential current protection as a signal to touch off the protection
针对当前电力系统中变压器保护由于励磁涌流鉴别理论不完善而导致的误动率相对较高的问题，论文在分析了变压器励磁涌流特性和有功损耗的基础上，提出了用变压器正序有功功率差动作为区别励磁涌流和故障电流的判据，并以成熟的比率制动差流保护作为内外部故障判据的变压器主保护。 - The thesis is focus on the research of the optical - fiber differential current protection that can adapt to the rapidly changing power grid . it mainly contains the following four parts : ( 1 ) theoretical analysis of some operation criterions and some factors that influence the operation of the differential protection . ( 2 ) simulation of a 500kv transmission line using emtp software
其主要内容是： （ 1 ）对影响差动保护灵敏度的各种因素和不同的电流差动保护判据进行了理论分析； （ 2 ）用emtp仿真软件对差动判据进行了数据仿真，并用matlab对输出结果进行了详细的可视化分析； （ 3 ）分析、比较了国内外纵差保护的数据采样同步方法； （ 4 ）对判据进行了实际的编程实现和动模仿真。