1) ratio restraint
比率制动
1.
Analysis of the relationship between operation current and restraint coefficient for ratio restraint setting of differential relay;
差动保护比率制动整定中动作电流与制动系数等关系分析
2.
By comparing the product restraint quantity with the ratio restraint quantity which used in the criterion of the differential protection, some new conceptions and schemes are proposed in this paper: (1)Identity of the product restraint criterion and the ratio restraint criterion.
本文通过对标积制动量与传统比率制动量进行对比分析，探讨以下几个问题：（１）标积制动判据与比率制动判据的统一性；（２） 扩展标积制动概念以便在差动保护中获得非线性制动特性；（３）在多侧差动保护中应用标积制动的方法。
3.
In terms of the problems occured during the ratio restraint longitudinal differential protection operating especially the restraint current is decreased owing to the increment of unbalanced current and saturation of the longitudinal differential protection caused by CT in external short circuit transient fault.
根据比率制动式纵差保护在运行中提出的问题 ,主要是电流互感器在外部短路暂态过程中造成的纵差保护不平衡电流增大和饱和效应使制动电流减少 ,可能产生误动作 ,发电机或变压器绕组短路时一侧可能存在不大的流出电流会影响保护动作的灵敏性 ,甚或造成保护拒动 ,这种流出电流可能是负荷电流 ,也可能是由短路安匝对健全绕组的互感所引起的感应电流。
2) percentage restraint
比率制动
1.
Analysis and treatment of maloperation problem of percentage restraint type generator longitudinal differential protection;
比率制动式发电机纵差保护误动作问题的分析和处理
2.
Application of compound percentage restraint in transformer differential protection;
复合比率制动在变压器差动保护中的应用
3.
Detailed analysis of several parameters about transformer percentage restraint type longitudinal differential protection;
对变压器比率制动差动保护几个参数的再认识
3) ratio brake
比率制动
1.
Proper and different ratio brake coefficient are proposed,which should be selected to solve the misaction possibility beyond the distributed protecti.
并提出通过选取适当的不同比率制动系数,以解决分布式母差保护在区外故障时可能误动的问题以及保证区内故障可靠动作的措施。
4) sectional ratio restraint
分段比率制动
5) complex percentage check
复式比率制动
1.
With the differential current introduced in restraint portion, the complex percentage check characteristic is made up.
在制动量中引入差动电流,构成复式比率制动特性。
6) ratio-restrained characteristic
比率制动特性
1.
For a long time ,the ratio-restrained characteristic is assumed to avoid CT saturation and the differential protection with ratio-restrained characteristic is considered able to function properly.
认为只要有了比率制动特性,差动保护就不会误动,但事实并非如此。
补充资料：销售与存货比率及存货与销售比率
销售与存货比率及存货与销售比率
销售与存货比率及存货与销售比率商品销售额与商品存货额、商品存货额与商品销售额之间的比率。它是反映市场动向的重要指标，可用来说明商品流转状况和企业经营效果。在批发业，这一比率称为月度存货与销售比率。其计算公式为:月度存货与销售比率-月末商品存货额全月商品销售额这一比率表示月末商品存货额为全月商品销售额的倍数，说明月末商品存货额可供销售多少个月。比率如果上升得快，表示商品存货的增长速度超过了商品销售的增长速度，说明市场上商品销售状况不好，今后需要压缩生产，防止商品存货继续上升;比率如果下降，表示商品销售的增长速度超过了商品存货的增长速度，说明市场上商品销售状况较好，今后需要扩大生产来满足市场需要。 在零售业，这一比率称为年度销售与存货比率。其计算公式为:年度销售与存货比率一全年商品销售额年末商品存货额这一比率表示全年商品销售额为年末商品存货额的倍数。比率上升得快，说明市场销售情况较好;比率下降较多，则说明市场销售情况不很好。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条