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1)  zero-order hold
零序保持
2)  zero-order-hold
零阶保持
3)  zero-sequence protection
零序保护
1.
Discussion on implementation of zero-sequence protection for transformer;
对变压器零序保护实现方式的探讨
2.
The end earth fault of big power source and long line makes zero-sequence protection appearing serious problem that protecting refused to move because the voltage of zero-sequence is low,and become a new difficult point that zero-sequence protection in practical application.
大电源长线路末端接地故障使零序保护出现因零序电压过低而使保护拒动的严重问题,成为零序保护在实际应用中的新难点。
4)  zero sequence protection
零序保护
1.
Study on the misoperation mechanism of zero sequence protection of grounding transformer on low resistance grounded 10 kV system;
10kV小电阻接地系统接地变压器零序保护误动机理研究
2.
It analysed influence and contermeasure of 10 kV neutral point earthing through minute resistance,and put forwards some ways of minute resistance value choice and zero sequence protection allocation.
分析10 kV中性点经小电阻接地带来的影响及对策,提出了小电阻阻值选择的一些方法及零序保护的配置。
3.
The influence to the bus equivalent zero sequence impendance and zero sequence protection from the different neutral point earthing mode of the transformer s 110 kV side were specifically analyzed.
 讨论了2台Y0/Y0/Δ接线且无绝缘要求变压器的220kV变电站的变压器中性点几种常见的接地方式,并就变压器110kV侧中性点接地方式对母线等值零序阻抗及零序保护的影响做了具体分析。
5)  zero-order hold
零阶保持器
1.
In the paper,a theorem is put forward that,for small sampling periods,the accuracy of all limiting zeros of the pulse transfer function for a system composed of a zero-order hold is followed by a continuous-time plant.
讨论了在含有零阶保持器的线性系统中,当采样周期很小时,脉冲传递函数的所有有限零点的近似程度。
6)  zero-bias retention
零偏置保持
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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