查询词典 current-carrying conductor

Faraday's law is that when the flux in the conductor loop changes, it produces electromotive force in the conductor loop, and obeys to contour integral law , Maxwell Curl Theory is that when the magnetic intensity of a certain point in ether space changes, there produces electric field at that point in ether space, which is the field mutual production theory of "electric field produces magnetic field and magnetic field produces electric field" in the free space which everybody is familiar with, and it obeys differential law , Lorentz magnetic force is that when metal electrons cut magnetic lines, metal electrons forced by move along the conductor to form inductive current, in fact, it doesn't matter whether coil moves or magnet moves, only if there exists relative motion between magnetic field and conductor, metal electrons must cut magnetic lines, which is,"coil stills while magnet moves to the left" and "magnet stills while coil moves to the right" these two situations are the same, which both belong to metal electrons having cut magnetic lines.

法拉第定律指导体环路里的磁通量发生变化时，在导体环路上产生电动势，而且服从围线积分律；麦克斯韦旋度理论指以太空间某点的磁场强度发生变化时，在以太空间的该点产生电场，即大家熟知的自由空间里"电场生磁场与磁场生电场"之互生场理论，而且服从微分律；洛伦兹磁力指金属电子切割磁力线时，金属电子受力沿着导体漂移而形成感应电流，其实，无论线圈运动或是磁铁运动，只要磁场与导体存在相对运动，则金属电子必然切割磁力线，即，"线圈静止而磁铁向左运动"与"磁铁静止而线圈向右运动"这两种情况是一样的，都属于金属电子切割了磁力线。

By combining electromagnetic theory with condensed state physics, we studied the electric skin effect , which consists of the distribution of conductor s induced charge on the surface of the conductor under the state of electrostatic equilibrium, the skin effects of the alternating current and super current.

用电磁学理论结合凝聚态物理学理论研究了电趋肤效应问题，它包括处于静电平衡状态下的导体上的感应电荷分布在导体的外表面上、交流电流的趋肤效应和超导电流的趋肤效应。

By combining electromagnetic theory with condensed state physics, we studied the electric skin effect, which consists of the distribution of conductor's induced charge on the surface of the conductor under the state of electrostatic equilibrium, the skin effects of the alternating current and super current.

电趋肤效应包括处于静电平衡状态的导体上感应电荷在导体外表面上的分布，交流电流在导体外表面层中的分布和超导电流在穿透层(处于超导态的载流超导体的外表面)中的分布。

One of these testing methods, eddy current, has been widely used for metal thickness measuring because of its good sensitivity, high test speed , non-contact and other advantage. The principle of eddy current testing is that, when the test coil is close to the metal conductor with alternating current, the eddy current would be inducing in the conductor, and correspongdingly, the eddy current would affect the original magnetic field, the result is the coils impedance and inducing voltage changed.

其中涡流无损检测技术具有灵敏度高、检测速度快、非接触等特点而广泛应用于金属厚度检测，它的原理是当载有交变电流的检测线圈靠近金属导体时在导体中产生涡流，该涡流又影响原磁场，使得线圈的阻抗和感应电压发生变化，通过分析阻抗或感应电压的变化来获得被测导体的信息。

When lightning strikes a phase conductor of transmission line, the current will encounter the surge impedance of the conductor so that overvoltage will be built up and propagate to the substation along the transmission line in wave form.

当雷电击到输电线路的相导线上，电流遇到导线的波阻抗，这样就产生过电压，并以波的形式沿线路传至变电站。

Electromagnetics course mainly including basic phenomena and laws of electro- magnetics, electrostatic field in vacuum, in conductor and in electric medium, electric energy, stabilized current, stabilized magnetic field and its basic laws, electric and magnetic fields caused by a moving chager in lower speed, the transform of electric and magnetic fields between different systems of coordinates, inductive laws, eddy field, self inductance, mutual inductance and transient, molecule current and magnetic substance, ferromagnet, boundary conditions, magnetic circuit theorem, energy of magnetic field and density of magnetic energy, displacement current, Maxwell's equation, electromagnetic wave, Poynting vector.

电磁学课程的主要内容包括：静电的基本现象和基本定律，真空中的静电场，导体和电介质中的静电场，电场的能量与电场能量密度，稳恒电流，稳恒电流磁场的基本定律，运动电荷的电磁场，不同参照系之间电磁场的变换，电磁感应定律，涡旋电场，互感，自感，暂态过程，分子电流与磁介质，铁磁体，边界条件，磁路定理，磁场的能量和磁能密度，位移电流， Maxwell 方程组，电磁波和玻印廷矢量等。

E. thickness of the copper wire wall, length of the single conductor wire, height of the solenoid, the exciting current and the current density, the working temperature of the conductor, time of exciting and demagnetizing, the cooling water pressure and flux density, etc..

所建立的数学模型包含3个目标函数（即能耗极小化目标函数、铜耗极小化目标函数和纯铁用量极小化目标函数）、7个设计变量（即铜管规格参数a、b、t，线圈匝数N〓、N〓，铁铠磁通密度B〓和冷却水压p）和8类14个约束条件（即铜管壁厚、单饼导线长度、螺线管高度、激磁电流与电流密度、导体工作温度、激退磁时间，冷却水压和铁铠磁通密度等约束条件）。

Comparing these two graphs, in graph 7 is the conductive current on conductor coil, in graph 8 is Maxwell's spatial displacement current .

比较两图。图7中的是导体线圈上的传导电流。图8中的是麦克斯韦的空间位移电流。

This issue is addressed by an inrush current limiter device for limiting inrushing current to a connectable load comprising: at least one switchable IGBT-based limiter unit for selectively limiting the inrushing current, having at least one current limiting conductor element for a limited leading of current and at least an IGBT-based switch whereby the IGBT-based switch is used as well as a controlled current limiter and as a by-pass element, and at least one control device for controlling the IGBT-based switch, whereby the control device comprises at least one IGBT-based switch supply and means for realizing smooth flanks of an output signal at the selected conductor element.

该问题通过用于限制针对可连接负载的浪涌电流的浪涌电流限制器设备解决，该浪涌电流限制器设备包括：至少一个可开关的基于IGBT的限制器单元，用于选择性地限制浪涌电流，其具有至少一个限流导体元件，用于有限引导电流，和至少一个基于IGBT的开关，其中基于IGBT的开关用作受控电流限制器和旁通元件，和至少一个控制设备，用于控制基于IGBT的开关，其中控制设备包括至少一个基于IGBT的开关电源和用于实现选定导体元件处的输出信号的平滑侧面的装置。

The present invention relates to an inrush current limiter device for limiting inrushing current to a connectable load comprising: at least one switchable IGBT (Insulated Gate Bipolar Transistor)-based limiter unit for selectively limiting the inrushing current, having at least one current limiting conductor element for limited leading of current, and at least an IGBT-based switch, whereby the IGBT(Insulated Gate Bipolar Transistor)-based switch (Q2) is used as well as a controlled current limiter and as a by-pass element, and at least one control device for controlling the IGBT-based switch, whereby the control device comprises at least one IGBT-based switch supply and means for realizing a smooth flank of an output signal at the selected conductor element.

本发明涉及一种用于限制针对可连接负载的浪涌电流的浪涌电流限制器设备，包括：至少一个可开关的基于IGBT的限制器单元，用于选择性地限制浪涌电流，其具有至少一个限流导体元件，该限流导体元件用于有限引导电流，和至少一个基于IGBT的开关，其中基于IGBT的开关(Q2)用作受控电流限制器和旁通元件，和至少一个控制设备，用于控制基于IGBT的开关，其中控制设备包括至少一个基于IGBT的开关电源和用于实现选定导体元件处的输出信号的平滑侧面的装置。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失