Improvement of three-phase asynchronous motor open-phase protect function;
三相异步电动机缺相保护功能的改进
After power-flow calculation of 110 kV transmission line with open-phase fault, this paper addresses the precautions during long time operation of open-phase transmission line and main transformer, and analyzes the feasibility of load transfer of open-phase line in closed loop network.
文章通过计算 110kV线路单相缺相故障时的潮流情况 ,阐明了缺相线路及主变压器长时间运行时的注意事项 ,并对缺相线路能否合环倒负荷问题进行了分析。
In this paper,the damage of three-phase asynchronous motor open-phase and overcurrent is introduced.
介绍了三相异步电机长期缺相或断相的原因,以及缺相或断相的严重后果,并详细介绍一款"断相和过流保护器"的工作原理及制作过程。
In order to insure electric-motor running safely,and to be immune to burn-up while lost its phase,besides of general safe considerations,some other protections should be taken into account such as lack-phase protection,so the rest of this paper will depict why an electric-motor lost its phase and how to deal with the problem.
保障电动机的安全运行,使其在发生缺相时及时停止运行,避免造成电动机烧毁事故,除了需对电动机实行常规保护外,还应有缺相保护。
With the advantages of simple,safe and reliable structure,flexible application,it can be applied to the power protection against the faults including over-current, over-voltage and lack-phase.
提出一种三相电源保护电路,叙述了电路的基本构成和工作原理,给出了具体电路原理图,阐明了电路具体工作过程,介绍了电路的具体调试方法,提供了一种结构简单、安全可靠、应用灵活、可对电源过流、过压和缺相故障实现快速综合保护方案。
Improvement on Lack Phase Protection Circuit of TV Transmitter;
电视发射机缺相保护电路的改进
Under the circumstances of three phase opening and three phase seriously unbalance, the circuit can cut off the loaded electric power supply automatically, give light as siren with LED, and indicate the cause of leading to protection, and when the three phase electric supply source having recover to the range from 180V to 260V, it will again supply the electricity.
设计了一种智能三相缺相与不平衡保护电路,该电路在三相缺相、三相严重不平衡的情况下,自动切断负载的电源,并且用 LED 发光示警,能指示保护引起的原因,当三相电源各相电压恢复到 180～260 V之间时,自动恢复供电。
The Modeling and Research of Multiphase Induction Machine with Structural Unbalance
多相感应电动机缺相建模与性能分析
Mathematical Models of Dual Three Phase Induction Motor with One Stator Phase Open-circuited
双三相异步电动机缺相时的数学模型
Three-phase AC phase sequence,with lack of protection of the detection circuit
三相交流电相序、缺相检测保护电路设计
Probing into Three-phase Induction Motor s Starting and Operation Under Absence-phase Condition;
三相异步电动机缺相起动及运行的探讨
Application of AC Contactor to Realize Phase Break Protection in Three-phase Motor
利用交流接触器实现三相电动机缺相保护
defect tetrahedral phase
有缺陷的四面体晶相
Statistical data is rather sparse.
统计数据相当缺乏。
Relative lack of warmth.
冷淡相比较缺乏热情
Microscopic Phase-Field Simulation of Antisite Defect Evolution of Al_3Li Phase
Al_3Li相反位缺陷演化的微观相场模拟
Sometimes this is through a ventricular septal defect or an atrial septal defect.
有时通过室间隔缺损或房间隔缺损相通。
Study on the Correlation between Neonatal Hypoxic-ischemic Encephalopathy (HIE) and Head Growth;
新生儿缺氧缺血性脑病与头生长的相关性研究
Correlation between CT grading and clinical grading of neonatal hypoxic-ischemic encephalopathy
新生儿缺氧缺血性脑病CT与临床分度的相关性
Analysis on perinatal interrelated factors of hypoxic ischemic encephalopathy
新生儿缺氧缺血性脑病围产期相关因素分析
You should be tolerant and generous with each other, help each other, complement each other's thinking and help correct each other's mistakes and shortcomings.
要相互容忍，相互谦让，相互帮助，相互补充，包括相互克服错误和缺点。
Study on the Experimentation of Synchrotron Radiation Topography and the Defects in Diamond Crystals;
同步辐射貌相术及金刚石晶体缺陷的貌相研究
lacking in hardness relatively or comparatively.
相对或者比较缺乏坚硬的特点。
Because she is lacking in training, she is afraid of making an exhibition of herself
她因缺乏训练,很担心会出洋相
Lack of ego-strength can make you feel helpless.
学习相缺乏自我力量会使你觉得无助。
