According to the characteristics of different algorithms, an implementation scheme of distance protection with inverse time characteristic is brought forward. 并根据各算法的估计性能特点,提出了一种具有反时限特性的距离保护算法的实现方案。
Null-type yaw probe Research on inverse time current relay based on the absolute value of zero-sequence power 对零式(三孔)方向测针采用零序功率绝对值构成反时限零序电流保护的方案探讨
Flow diagrams of algorithm for inverse time current protection and instantaneous over current protection were given as well. 给出了长延时和瞬动二段保护的算法流程。
Simulation of Heat Transfer of Heat Recovery Boiler with Additional Out Vents Inverse time current protection is judged by calculating the RMS of current and adding up heating effect. 余热锅炉增设放散烟道后的传热数值计算长延时采用计算电流真有效值,累计热效应判别。
Inverse time feed rate code 反比时间进给率代码
The distance protection with inverse time characteristic is the best choice to solve the conflict between fast trip near the protecting relay and reliable trip at the end of protection zone. 反时限距离保护是解决近范围快速动作与保护范围末端可靠动作之间矛盾的最好策略。
The inverse time delay characteristic is adopted by the basic zero-sequence over-voltage protection. 其基本保护采用零序过电压保护,动作时间采用反时限特性;
The inverse time characteristic of overload protection and the differences of starting protection and running protection are described in detail. 重点介绍了热过载保护的反时限特性和启动保护与运行保护的区别。
Based on the analytical work in computing exact control for the heat equation, a method is for developed solving water pollution control problem with the theory of inverse boundary and inverse time control. 文中根据逆边界逆过程控制理论,将D、F、和P、J、H等人为求解热传导逆过程提出的基函数方法推广应用于水污染控制问题。
In this paper a river water pollution dynamic control problem is proposed as inverse boundary and inverse time mixed control one based on inverse boundary and inverse time control theory. 根据逆边界逆动态控制理论,将河流水污染动态控制问题提为逆边界逆动态混合控制问题。
Application of systems containing inverse time to optimal control problems 含逆时间系统在最优控制问题中的应用
Inverse Time Sequences Approach for the Design of FIR Internal Model Controller 一种FIR型内模控制器设计的时域逆序列方法同步辐射时间分辨荧光光谱技术
Combining with zero sequence current with inverse time characteristics, grounding distance relay is used in earth protection for 220 kV and above lines, instead of phase zero sequence current protection. 在220kV及以上电压等级线路用接地距离保护代替阶段式零序电流保护,并辅之以具有反时限特性的零序电流作为接地保护。
A method of inverse time integration has been discussed. 对反向积分方法问题作了初步探讨。
On considering the voltage adjustment stability and device controllable margin, the concept of variable inverse time delay is introduced. 考虑到电压调整的平稳性和控制设备的可控冗余度,融入了可变反时限延迟时间的概念。
Auto-adapted protection application: The auto-adapted electric current protection application inverse time lag principle, to seriously has short-circuited the breakdown rapidly to make the response, strengthened the protection sensitivity, reduces the breakdown influence scope. 自适应保护的应用:提高了电流速断保护范围,自适应过电流保护应用反时限原理,对严重短路故障迅速做出反应,增强了保护的灵敏性,减小故障影响范围。
The general inverse time characteristic is introduced, and the setting principles of current and time when inverse time characteristic is scarce or voltage transformer breaks are provided. 介绍了普通反时限特性,并提供了缺乏反时限特性段或电压互感器断线时的电流、时间整定原则。
Development and Application of Inverse Time Overcurrent Protection& Microcomputer-based distribution Protection Systems 发展和推广反时限过电流保护&配电系统微机保护
Analysis of inverse time zero-sequence current relay and its selectivity 对输电线反时限零序电流保护选择性的分析
Contactor control is used by three-phase load motor in electric power locomotive. Current quick-break protection, inverse time over current protection and single-phase grounding protection can be realized by single chip micro-computer. 电力机车三相负载电动机采用接触器控制方式,可用微型单片机同时实现电流速断、反时限过流及单相接地等保护。
Then many distance protection thoughts and algorithms are adopted to compare each inverse time characteristic, better arithmetic and set thoughts are got. 采用各种距离保护思想、算法,采用C语言进行计算,比较各自的时限特性,得出反时限特性比较好的算法及其整定思路;
Setting of Microprocessor-Based Inverse Time Protection for Generator and Transformer 微机发变组保护中反时限保护整定计算时间的形状从多丽丝·塞尔萨多的作品谈材料处理与时间体验
Microcomputer based inverse time negative sequence current protection and fault recorder 微机反时限负序电流保护和事故追忆装置
A series of convection diffusion inverse boundary and inverse time mixed exact control formulas are given in this paper. 文中建立了对流扩散逆边界逆过程混合控制的精确计算公式;
This paper carried on the detailed analysis of many algorithm including three-step current protection algorithm 、 inverse time zero sequence current protection algorithm and voltage protection algorithm, and gave the DSP programming flow chart. 并对包括三段式电流保护、反时限零序电流保护、电压保护等算法详细分析,给出了在实现DSP编程中流程图。
The improved PSO algorithm is tested in two models, to show the effects of improvement and its ability in solving the inverse time overcurrent relay coordination problem when DG units are connected. 通过对两个算例的分析可看到改进算法的效果以及粒子群算法解决分布式电源并网情况下反时限过流保护整定问题的能力。
Time Dial Setting and pickup current of the inverse time protection are the two parameters need to be optimized. 反时限保护需要优化的参数主要有时间整定系数和启动电流。
Different from the common inverse time characteristic, this model conforms to the load actual operating law and the protection request, and takes the analysis of measurement error into consideration. 与常用反时限保护特性相比较,此保护模型更符合负载的实际运行规律及保护要求,并对测量误差关系进行了分析。
The post-stack depth imaging methods of complex structure include: post-stack inverse time depth migration; common non-Kirchhoff migration methods; new mixing method depth migration. 复杂构造的叠后深度成像方法,包括叠后逆时深度偏移;常用的非Kirchhoff偏移方法;新的混合法深度偏移。
In feeder line protection, inverse time protection performance was studied. 在馈线保护中研究了反时限保护的特性。