提出了基于故障分量正序电抗的方向元件。
A new directional element based on the fault component positive sequence reactance (FCPSR) is presented.
方向元件是基于行波或暂态量的超高速方向保护的核心元件。
Directional unit is the kernel unit of the traveling waves or transients based ultra-high-speed directional protection for transmission line.
分析表明其电压动作死区很小，比传统的功率方向元件具有更高的动作灵敏性。
Analysis shows that the voltage operating dead zone is small and have more sensitivity than traditional power directional relay.
其中方向元件的可靠动作、故障检测与隔离算法的合理设计和通信的快速可靠是方案实现的关键。
The reliable action of fault direction element, reasonably design of fault detection and isolation algorithm and fast communication is the key to program implementation.
由于同杆双回线自身的特殊性，使得在常规线路保护中有着广泛应用的负序方向元件的性能受到影响。
The performance of negative sequence directional element widely used in conventional transmission line protection may be affected when it is used in the double transmission lines on the same tower.
针对当前零序功率方向元件带负荷试验的不足之处，讨论了如何检查“L”、“N”及“S”线的接线正确性。
How to check the connection correctness of "l", "n", "s" lines is discussed on the shortcomings of on-load test for zero-sequence power direction component.
理论上讲，这种机械切换电流通断或方向的方法，或许有一天会成为任何纳米尺度电路的关键元件。
In theory, this could one day provide a key component of any nanoscale electrical circuit-a way to mechanically turn the current on and off or change its direction.
他的一个长期研究方向是利用纳米元件模拟自然界原理。
One of Strano's long-term research goals has been to find ways to imitate principles found in nature using nanocomponents.
控制元件：为满足传动性能的需要，在系统内为控制压力，流量和方向等而配置的各种阀件。
Control components: in order to meet the needs of transmission performance, in the system for the control of pressure, flow and direction of the configuration of various valves.
请注意，由于采用了约定的电流方向，因此每个元件中的电流是沿着电压下降的方向流动。
Note that conventional current flow is used, hence the current in each element is shown in the direction of decreasing voltage.
电能开关是控制能流方向的元件。
And the power switches are used to control the direction of power flow.
它指出了减少非线性误差的方向，并为部分元件参数的设计提供了依据。
This paper points out the direction of reducing nonlinear error and offers the basis for design of partial components parameters.
恒偏向棱镜是指能恒定改变光束传输方向的转向元件。
Constant deviation prism is a turning element which can invariably transform the propagating direction of the light beam.
分析了不同类型缺陷的漏磁场分布特征，布置不同方向的检测元件测取不同的缺陷信息；
The characteristics of the magnetic flux leakage of different types of faults were analyzed and the testing elements of various directions were located to get the information of all faults.
结果表明，弹体旋转对超音速射流元件内部流场结构几乎没有影响，而对姿态控制发动机的控制推力大小和方向的影响不容忽视。
The results show that the missile rotation has hardly effect on inner flow field structure of SFE, but some effects on the control thrust of attitude control motors both in magnitude and in direction.
对在强激光作用下的光学元件的透射激光方向角进行了时序观测。
The experiment of time sequence observation of laser orientation angel for transmitting laser beam through an optical element under heating of powerful laser has been carried out.
提出一种采用模拟乘法器和模拟积分器作为基本元件构成功率方向继电器的方案。
A project to design a power direction relay, which is based on an analog multiplier and an analog integrator, is presented in this paper.
梯度折射率球透镜是一种折射率以球心为对称中心，并沿球半径方向分布的球型光学元件。
GRIN ball lens is a spherical optical element with refractive index is symmetric around a spherical point and varies in spherical radius direction.
当轴承套圈或垫圈相对旋转时(向心或推力轴承)或当滚动元件在滚动方向运动时(直线轴承)，作用在轴承上的负荷。
When the bearing rings or washers relative rotation (radial or thrust bearings) or when the rolling elements in rolling direction of movement (linear bearings), the role of the load on the bearings.
译：二极管是一种只允许电流以一个方向流过的元件。
Diodes are components that allow current to in only one direction.
它的出现和应用为提高液压元件产品技术水平和计算机在液压与控制领域的应用开拓了新的方向。
Its emergence and application explored a new direction for raising the technical level of hydraulic components and applying computers in hydraulic and control domains.
电极部分设置于在半导体芯片的厚度方向上与传感器元件不重叠的位置。
The electrode portion is placed in a position which does not overlap with the sensor element in the thickness direction of the semiconductor chip.
零序功率方向继电器是线路保护中的一个重要元件。
The zero sequence directional relay is an important relay component for transmission line.
研究表明，流化床颗粒层过滤器的系统阻力主要决定于过滤元件的阻力，优化过滤元件应该是系统优化的主要方向；
The results show that the system pressure drop is mainly determined by the granular filter pressure drop, and optimizing the granular filter is the main orientation of the system optimization.
最后，结合新技术在电力系统中的应用，探讨了故障选相元件进一步的研究方向和发展前景。
In the end, combined with new technology applications in power system, the research orientation and further development of fault phase selector are discussed.
因为两臂的直流电路相等而方向相反，所以在变压器铁心中有效直流磁通是互相抵消的，所以不再需要巨大的直流元件。
Since the DC current on each side is the same, the effective DC in the transformer core is cancelled, so there is no need to provide for a large DC component.
利用四位双向移位寄存器等电子元件可制作能直观显示直流电流方向的模拟演示仪。
Four-bit bidirectional shift register was used to produce the device for demonstrating the direction of direct current.
对两种极化电压下的横联差动电流方向保护的选择元件在同杆并架双回线故障下的动作行为进行了研究。
This paper analyses selectors of transverse differential current direction protection using two types polarizing voltage for double circuit lines on the same tower.
对两种极化电压下的横联差动电流方向保护的选择元件在同杆并架双回线故障下的动作行为进行了研究。
This paper analyses selectors of transverse differential current direction protection using two types polarizing voltage for double circuit lines on the same tower.
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