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- neutral point theory 中性点理论
- The neutral point of view is a means of dealing with conflicting views. 中立观点是处理相冲突看法的一种手段。
- Comparison of two grounding methods for 330 kV transformer neutral point. 中性点直接接地330kV变压器中性点两种接地方式比较。
- Vibration above neutral point of stem caused by eddy movement and collision and inhibited by drilling fluid damp during transmitting upward. 涡动和碰撞引起的中性点及中性支以上的振动,在向上传播过程中被钻井液阻尼抑制;
- A system whose neutral point(s) is (are) earthed through impedances to limit earth fault currents. 系统中至少有一个中性点通过具有阻抗的器件接地以限制接地故障短路电流系统。
- Supply transformers for underground coal mine well are earthed at neutral point. 很多地方煤矿在供电方面存在不安全的隐患,向井下供电的变压器中性点接地。
- The designation of any conductors, terminal or any element connected to the neutral point of a polyphase system. 电气上与多相系统中性点连接的任一导体、端子或元件的总称。
- Transformer neutral point , Grounded capacity current, The zero phase-sequence reactor, Killer arcing winding. 作者简介:罗娟(1979-),女,陕西宝鸡人,汉族,硕士研究生,研究方向为电力系统及其自动化。
- This paper defines neutral section and neutral point respectively with effective axial force and ac. 本文还用有效轴力和真实轴力分别定义了中性截面和中和点。
- The basic technique used in this paper is the fixed point theory for dif-ferential equations in Banach space. 我们也找出弱解存在的最大时间范围,并探讨此解在趋近边界时的行为;此外,我们也证明了解对初值条件的连续性。
- We strive at all times to meet the policy of using neutral point of view, ensuring our reporting is as fair as possible. 我们一直努力使用中性的观点来撰写,以次保证我们的报道尽可能的公平。
- It was shown that the position of neutral point of pile shaft varied with the consolidation of surrounding soil and the magnitude of pile-head load. 利用该模型分析了大面积堆载下,在桩顶作用大小不同的竖向荷载以及桩侧土达到不同固结度时再施加桩顶荷载情况下,桩身摩阻力的发展变化规律。
- The technique of back EMF induction in BLDC motor is analyzed, the "virtual neutral point" method and the technique of "3-step" start are introduced. 主要分析了反电动势感应方法,并阐述了虚拟中点法和三段式起动技术。
- Some efficient tools such as topological degree theory, fixed point theory and lower and upper method have been applied. 使用的主要方法有锥上的不动点理论、拓扑度理论和上下解方法等。
- This paper proposes a new strategy for balancing the neutral point voltage in the process of the three-level inverter vector controlling. 本文主要研究三电平逆变器在电压空间矢量控制过程中中性点电压平衡的控制方法。
- The TV neutral point grounded through a nonlinear resistance is also one of the measures that check the ferroresonance over-voltage. 母线TV初级中性点经非线性电阻接地也是抑制铁磁谐振过电压的措施之一。
- Existence of solutions for a class of semilinear elliptic equations is obtained by the minimax methods incritical point theory. 通过临界点理论中的极小极大方法得到了一个关于一类半线性椭圆方程解存在性的结果.
- By using critical point theory,we obtain some sufficient conditions for the existence of multiple periodic solutions to a discrete Hamiltonian system. 本文利用临界点理论;建立了一类离散哈密顿系统存在多个周期解的一些充分条件.
- Check the polarity of the stator windings and connections. There can be no checking if the output neutral point is not available. 检查定子绕组的极性及其连接应正确.;中性点未引出者可不检查极性
- In addition, a design method of weighting rod, whichcan ensure neutral point is in weighting rod, and reduce the rod parting nearby neu... 同时,初步解决了加重杆设计问题,确保中和点在加重杆上,有效地减少中和点附近抽油杆断裂问题。