Based on the analysis of main fault types of LV (Low Voltage) flameproof motor, the negative sequence protection principle is proposed for its asymmetric short circuit fault and open phase fault.
通过分析低压隔爆电动机的主要故障类型,针对不对称性短路故障和断相故障提出了采用负序保护原理进行保护的方案。
To eliminate the influence of distributed capacitance on negative sequence directional pilot protection, the authors propose a Bergeron model based accurate compensation algorithm.
为消除特高压输电线路中分布电容对负序方向纵联保护的影响,文章提出一种基于贝瑞隆模型的精确补偿算法。
Based on the symmetry component theory, a method of the motor protection is presented by measuring positive, negative and zero sequence current component.
基于对称分量法理论,提出了基于检测正序、负序、零序电流分量的电动机保护方法。
The scheme includes the transverse differential protection, the directional relay action on negative sequence power of fault component and the incomplete differential protection.
该方案包括了横差保护、故障分量负序功率方向保护和不完全纵差保护的综合应用。
This paper studies the negative sequence directional protection (NSDP) as the primary protection of series compensated UHV transmission line.
文中对带串补的特高压线路采用负序方向高频保护作为主保护方式进行了研究。
Based on the arithmetic of differential protection and simulation technique, this paper analyses the influence of the negative sequence to power system.
在结合微机差动保护装置算法及仿真建模的基础上,分析了负相序对差动保护的影响,并给出了相应的处理方法。
The performance of negative sequence directional element widely used in conventional transmission line protection may be affected when it is used in the double transmission lines on the same tower.
由于同杆双回线自身的特殊性,使得在常规线路保护中有着广泛应用的负序方向元件的性能受到影响。
Zero-sequence current criterion, negative sequence current criterion and phase current variation can be used to improve the performance of breaker failure protection for ACF sub-bank.
针对单纯采用相电流判据的不足之处,本文提出增加零序电流、负序电流及电流变化量判据,以有效地避免保护误动或者拒动。
The paper proposes a novel shunt reactors turn-to-turn fault protection that is based on negative-sequence power direction theory.
提出了基于负序功率方向的并联电抗器匝间故障保护原理。
Over current protection, negative current protection, zero sequence current protection, over time of start protection and low voltage protection is configured in the device.
本装置配有过流保护、负序电流保护、零序电路保护、起动时间过长保护、低电压保护。
A novel principle of negative-sequence current compensation based adaptive zero-sequence over-voltage protection is therefore proposed.
该文提出一种新的基于负序电流补偿的自适应零序过电压保护原理。
The negative sequence distance relay gets free from the winding connection of the transformer. So it is the best choice to use the kind of the distance relays for the transformer backup protection.
负序距离继电器的行为与变压器绕组的接线无关,所以它是作为变压器后备保护的距离继电器的最佳选择。
It can be combined with a set of transformer main protection by combining negative-phase sequence current sudden-change starting element.
它也可与负序电流突变量起动元件配合,构成一套变压器主保护。
It can be combined with a set of transformer main protection by combining negative-phase sequence current sudden-change starting element.
它也可与负序电流突变量起动元件配合,构成一套变压器主保护。
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