1) fault phase
故障相
1.
The earthing fault phase can be discriminated on three-phase vectorgram rapidly and accurately by application of the law.
本文通过对单相接地故障的分析研究,总结出地电位(D)轨迹与系统电动势(E)之间,随系统参数、接地电阻变化的特性规律,利用该规律可在三相矢量图上迅速准确地判断出接地故障相,克服了仅用零序电压方向判断接地故障相可能产生的误差,提高了判断接地故障相的准确性,为系统及时采取防止过电压和消除单相接地故障措施提供了必要条件。
2.
The method of the fault phase is also analyzed by the numbers.
传统的小电流故障选线方法都是基于零序分量,而本文提出利用各相分量构造一种斯的小电流故障选线判据,理论分析及 EMTP 仿真验证了访方法的有效性,具有良好的应用价值文中同时还系统地阐述了小电流电网发生单相接地时故障相判别的方法。
2) fault phase selection
故障选相
1.
Improved criteria of grounding fault phase selection based on wavelet transform;
基于小波变换接地故障选相判据的改进
2.
Research on a fault phase selection algorithm based on fault transient voltage;
基于故障暂态电压的故障选相算法的研究
3.
Current status and development of fault phase selection of (E)HV transmission lines;
(超)高压输电线路故障选相现状及其发展
3) faulty phase selection
故障选相
1.
The ideas that current zero modulus portion’ high frequencies as fault characters to active differential protection in initial fault phase are presented,and fault current wave’s modulus characters implement faulty phase selection.
针对行波在水轮发电机定子绕组槽部和端部的传播特征,建立其分布参数的波动电路模型,提出将定子故障接地初瞬行波电流零模部分的高频分量作为故障判据进行行波差动保护,并通过接地时的电流模量特征实现故障选相。
2.
Using the fault components of current, positive-, negative- and zero-sequence currents are extracted, then correlation analysis of positive- and negative-sequence currents are performed; using fuzzy set, multi-characteristic criteria for correlation coefficients are established to conduct faulty phase selection.
提出了一种基于相关分析和模糊推理的故障选相元件。
3.
The fault feature parameters are extracted,subjection functions and fuzzy rules for identifying pattern of fault and selecting phase of fault are developed from perspective of fuzzy pattern recognition,and new algorithm of speedy comprehensive faulty phase selection based on stratified fuzzy reasoning is presented.
提取了用于故障选相的特征参数,从模糊模式识别的角度,制定了识别故障类型和故障相别的隶属函数及模糊规则,提出了基于分层模糊推理的快速综合故障选相元件新算法。
4) open-phase failure
断相故障
1.
A novel remedial approach of switching function for the fault-tolerant control is presented to reduce open-phase failures occurring in AC-AC matrix converters and to improve the reliability of AC-AC converter.
通过较详细的数学分析断相故障发生后,用合适的输入电压序列的对称与非对称模式矩阵的构建合成新的开关函数矩阵,进一步合成故障情况下所需的输出波形,使矩阵变换器在缺相时依然能继续运行。
6) single phase earth fault
单相故障
1.
The zero-sequence model of single phase earth fault is made on the basis of distributed parameter lines.
建立了基于线路分布参数的单相故障零序等效模型,通过分析故障/非故障线路的暂态零序电流,得到了它们的内在特性:在低频段内,故障线路零序暂态电流幅值大于非故障线路的,并且随着故障距离的增加而幅值呈一定规律减小。
补充资料:二相──悉达太子二相
【二相──悉达太子二相】
﹝出佛本行集经﹞
梵语悉达,华言顿吉,即佛幼时之名也。二相者,谓佛初生时,净饭王令相师占之。相师云:太子相好,具有轮王及成佛之相也。
[一、轮王相],轮王相者,谓转轮圣王,亦具三十二相也。相师言:太子具足是相,若其在家,当作转轮圣王,王四天下也。(三十二相者,足安平相、千辐轮相、手指纤长相、手足柔软相、手足缦网相、足跟满足相、足趺高妙相、腨如鹿王相、手过膝相、马阴藏相、身纵广相、毛孔生青色相、身毛上靡相、身金色相、身光面各一丈相、皮肤细滑相、七处平满相、两腋满相、身如师子相、身端直相、肩圆满相、四十齿相、齿白齐密相、四牙白净相、颊车如师子相、咽中津液得上味相、广长舌相、梵音深远相、眼色如金精相、眼睫如牛王相、眉间白毫相、顶肉髻成相也。四天下,即四洲,东弗于逮、南阎浮提、西瞿耶尼、北郁单越也。)
[二、成佛相],成佛相者,佛具三十二相。相师言:太子具足是相,若舍王位,出家求道,必得成佛,名遍十方,化导一切也。
﹝出佛本行集经﹞
梵语悉达,华言顿吉,即佛幼时之名也。二相者,谓佛初生时,净饭王令相师占之。相师云:太子相好,具有轮王及成佛之相也。
[一、轮王相],轮王相者,谓转轮圣王,亦具三十二相也。相师言:太子具足是相,若其在家,当作转轮圣王,王四天下也。(三十二相者,足安平相、千辐轮相、手指纤长相、手足柔软相、手足缦网相、足跟满足相、足趺高妙相、腨如鹿王相、手过膝相、马阴藏相、身纵广相、毛孔生青色相、身毛上靡相、身金色相、身光面各一丈相、皮肤细滑相、七处平满相、两腋满相、身如师子相、身端直相、肩圆满相、四十齿相、齿白齐密相、四牙白净相、颊车如师子相、咽中津液得上味相、广长舌相、梵音深远相、眼色如金精相、眼睫如牛王相、眉间白毫相、顶肉髻成相也。四天下,即四洲,东弗于逮、南阎浮提、西瞿耶尼、北郁单越也。)
[二、成佛相],成佛相者,佛具三十二相。相师言:太子具足是相,若舍王位,出家求道,必得成佛,名遍十方,化导一切也。
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