1)  zero-sequence over current
零序过流
1.
Through the analysis of single-phase grounding in NRS,the magnitude of the neutral low resistance is presented,Give two examples of the configuration of 110kv&220kv transformer substation,illustrate those functions of zero-sequence over current protection.
通过对中性点经小电阻接地发生单相接地故障的理论分析,得出中性点电阻阻值大小的要求,并举110kV及220kV变电站的实例结合一次系统配置分析其零序过流保护配置,最后给出了仿真算例,并提出需要注意的问题。
2)  accelerated zero sequence over-current
零序过流加速
3)  zero sequence overcurrent protection
零序过流保护
4)  transformer zero-sequence overcurrent relay
变压器零序过流保护
5)  zero sequence
零序
1.
Analysis of longitudinal zero sequence direction protection misoperation and its countermeasures;
纵联零序方向保护误动原因分析及其对策
2.
Protection against earth short-circuit of responding negative sequence component and zero sequence component of power network;
反应电网负序和零序量的接地短路保护
3.
The varying relationship between the unbalance and the lagging phase of the negative sequence from the positive is compared according to the various values of the zero sequence.
本文讨论了电力系统电压不平衡度的几种工程近似计算方法,对在零序分量取值不同情况下的不平衡度随正、负序分量相位差变化的规律进行了比较,分析了影响各种算法精度和误差的因素,指出各种算法的适用范围。
6)  zero-sequence
零序
1.
It proves that the operation of zero-sequence current protection only depends on the load current and has nothing to do with the fault position,when the wire break fault happens on the 110kV transmission line in a defined network configuration.
针对我局110kV某线路单相断线故障,通过理论公式的推导,证明了网络结构确定的110kV线路发生单相断线故障时,其零序电流保护动作情况只取决于当时的负荷电流大小,与断线位置无关。
参考词条
补充资料：零序电流互感器
分子式：
CAS号：

性质：剩余电流型漏电保护装置的检测元件。其铁心多是环形的。所有电源线(两根、三根或四根)穿过互感器铁心构成互感器的原边；其二次线圈与极化电磁铁或电子线路联接。正常运行时，互感器一次边各线在铁心中产生的磁通互相抵消，二次线圈不产生感应电动势，漏电保护装置不动作；当后方发生漏电或有人触电时，出现剩余电流，二次线圈产生感应电动势，漏电保护装置动作。纯电磁式剩余电流型漏电保护装置的零序电流互感器必须具有很高的灵敏度。其铁心用铁镍合金或非晶态材料制成。

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