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1)  zero position protection
零位保护
2)  zero sequence differential protection
零差保护
1.
Through on-site commissioning of differential digital protection,compared with normal method,single differential protection,zero sequence differential protection and bus differential protection ratio restraint characteristic test method are analyzed and studied and then,some simple, and practical test method and conventional convenience commissioning methods are given.
通过差动保护装置的现场调试,结合常规的试验方法,对线路分相电流差动、零差保护、母差保护比例制动特性的试验方法进行了分析、研究,给出了一些简单实用的测试方法,并与常规方法进行了比较。
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)  protective zero terminating
保护接零
1.
The TN-S protective zero terminating in construction site;
施工现场TN-S保护接零
2.
This text summarizes the protective zero terminating system of the electric equipments.
通过对电气设备保护接零系统的概述,在TN-C系统负载不对称时,通过对中性点电压的分析及中性线电流与相线电流的比较,讨论了该系统存在的问题以及应对措施,最后分析了在TN系统中应注意的几个问题。
6)  protective zero line
保护零线
1.
Through the analysis of the working principle the danger of breaking of the protective zero line is declared and the advantage of reduplication ground protection is points out.
通过对TN S保护接零工作原理的分析 ,说明了保护零线断开的危险 ,指出了重复接地的优点。
补充资料:零位
1.比喻最低的限度。
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