1) transient current angle comparison
暂态首半周相位比较
1.
This paper analyzes the fault feature of system with neutral ungrounding,a new scheme of line selection about earth fault diagnosis in the networks based on "Residual Current Method" and transient current angle comparison with fuzzy information fusion is proposed.
分析了小电流接地系统的故障特征,针对现有单相接地故障选线判据适应性较差、正确率不高的现状,应用模糊信息融合原理,提出了基于残流变化量比较与暂态首半周相位比较的单相接地故障模糊综合选线方法;构造了形式简洁物理意义清晰的的故障隶属函数和综合选线判据;研制出样机并进行了动模实验检验。
2) first half transient wave
暂态首半波
1.
Since the success rate of faulty line selection based on single criterion for single-phase earthing fault in non-solidly earthed network is normally low,a new comprehensive faulty line selection equipment is proposed which based on the first half transient wave and active component direction of zero-sequence current.
为解决小电流接地系统发生单相接地故障后,单相判据的小电流单相接地故障选线成功率普遍较低的问题,提出一种基于暂态首半波和零序电流有功分量方向的综合选线装置。
3) static phase comparator
静态相位比较器
4) phase comparison
相位比较
1.
In this paper, a new means about the phase comparison of zero sequence voltage and zero sequence current is proposed.
提出了一种利用单片机对零序电流和零序电压进行相位比较,改进一般智能漏电保护装置的新方 法。
2.
The measurement of sound speed in the air is studied in the experiment by phase comparison method and standing wave method.
通过实验,应用相位比较法和驻波法对空气中的声速测量进行了研究。
5) raydist
相位比较仪
6) polyphase phase comparator
多相相位比较器
补充资料:酬别周从事二首
【诗文】:
腰痛拜迎人客倦,眼昏勾押簿书难。
辞官归去缘衰病,莫作陶潜范蠡看。
洛下田园久抛掷,吴中歌酒莫留连。
嵩阳云树伊川月,已校归迟四五年。
【注释】:
【出处】:
全唐诗
腰痛拜迎人客倦,眼昏勾押簿书难。
辞官归去缘衰病,莫作陶潜范蠡看。
洛下田园久抛掷,吴中歌酒莫留连。
嵩阳云树伊川月,已校归迟四五年。
【注释】:
【出处】:
全唐诗
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