文中还给出了选相元件的方框图。
因此可作为数字式保护的较理想的选相元件方案。
As phase selection schemes, they can be used for perfect digital relay.
因此可作为数字式保护的较理想的选相元件方案。
As phase selection schemes, they can be used for perfect digital r...
本文研究了输电线路接地故障时的故障选相判据。
This paper studied the transmission lines when earthing fault fault phase selection criterion.
构造了新型的用于高压输电线路保护的故障选相元件。
A new faulty phase selector for high voltage power transmission system is presented.
本继电器可以作为超高压输电线路重合闸装置的选相元件。
This relay can be used as a new protection component to detect faulty phase for ultra-high voltage transmission lines.
该方案的选相（线）范围可达双回线路全长的90％以上。
The effective range of the proposed schemes covers over 90% the length of trans…
该方案的选相（线）范围可达双回线路全长的90％以上。
The effective range of the proposed schemes covers over 90% the length of transmission line…
本文研究提出了一种适用于超高压电力系统的新型选相元件。
In this paper, a new type of phase selection element used for EHV power system is studied and suggested.
提出一种新的基于自谐振神经网络结构的自适应故障选相元件。
This paper presents a new adaptive phase selector with an adaptive resonance theory (ART) based neural network.
对目前实用的突变量及稳态量选相元件进行了比较，指出了其特点和存在的不足。
Currently used fault phase selector components are compared and their characteristics and shortcomings are pointed out.
提出了一种基于阻抗相对变化的高压线路保护选相新原理，用作振荡期间的选相元件。
Based on the relative variation of impedance during power swing, a novel phase selector for high voltage transmission lines is proposed.
从智能选相型真空断路器的操作机构、反力系统的设计等方面对其设计思路及原理作了介绍。
From the design of operation mechanism and reacting force system of vacuum breaker during intelligently selecting phase, ect. the design ideas and principles are introduced.
随着电力系统网络规模的不断扩大和电压等级的不断提高，对故障选相装置的要求也不断提高。
Along with the continuous development of power system network and the continuous enhancement of voltage grade, the request is enhanced correspondingly to the fault phase selector.
研究表明相电流差突变量、稳态电流序分量等选相元件在发生某些跨线及转换性故障时会误选相。
The fault phase selectors, including the phase current difference suddenly-change and the sequence current, may misoperate in some cross country faults and conversion faults.
文中还提出利用同一故障检测量实现故障选相，经过大量的动模实验表明所述方法具有一系列优点。
Also in this paper presented a new way of phase-select for faults through fault checking measurements. Dynamic model test's results show that the proposed method has a series of advantages.
相电流差突变量选相元件在单回线故障中具有良好的选相性能，但在同杆双回线跨线故障中可能误选相。
Although fault component current phase selector has excellent performance for single transmission lines, it may select unwanted phase for cross-country faults in double-circuit lines on a same tower.
理论分析和仿真计算表明，使用电压量的选相元件能够正确地判别各种故障类型，满足高压线路保护的需要。
Theory analysis and simulation results show that the new phase selector can determine fault types properly and be used in transmission line protective relay.
文中所探讨的相电流突变量选相元件，是利用单相接地故障时，两健全相相间电流突变量为零这一特征来得到的。
The fault phase selector discussed is based on the result that the fault component of sound phases is zero when a single-phase-to-ground fault occurs.
在详细分析相电流差突变量选相基本原理的基础上，对传统相电流差突变量选相元件三相短路故障判据进行了改进。
Based on the detailed analysis of basic principle, the traditional three-phase short-circuit criterion of phase selection element based on sudden-change of phase current differential is improved.
分析了反映序电流、电流突变量和补偿电压的选相原理，提出了当电压互感器断线时为防止误动应闭锁补偿电压选相。
This paper analyzes the phase selection theories of sequence current, the current break variable and the compensation voltage.
针对传统电流突变量和电压突变量选相元件不能同时满足强弱电源系统侧保护要求的缺点，提出一种新的突变量选相原理。
A novel fault phase selector by fault component of compensation voltage based on traveling wave is presented for high-speed protection.
并经过仿真计算和数据的验证表明该选相原理的正确性，能满足现场弱馈选相的要求，从而有效地解决了弱电源侧的选相问题。
The principe is based on model component analysis. The ATP simulation calculation and the data certification show that the principle is correct and can meet the re…
该选相元件具有选相明确、结构简单、灵敏度高、可靠性好、适用范围广、动作速度快等优点，因此，它将是一种较为理想的选相元件。
It has the advantages of definite phase selection, simple structure, high sensitivity, good reliability, wide suitability range and short operation time. Therefore, it will be an ideal ph...
主轴的进能量和转速是通过选速杆使主轴箱中的适当齿轮相啮合而控制的。
Spindle feeds and speeds are controlled by selector levers which engage the proper gears in the drill head.
在研究矿石性质的基础上，通过大量、详细的试验，确定了与该矿相适宜的选别工艺流程。
Base on studying of properties of the refractory copper ore and a large number of particular tests, the suitable mineral processing flowsheet has been defined.
钻机可根据用户要求选装三相交流发电机组，为施工现场夜间照明或焊接维修提供方便；
We can set up the spare electric engine and clutch implement according to client's requirement, so that the rig can work with diesel engine or electric engine.
本文简要介绍在北京谱仪触发判选的径迹系统中采用GAL器件作相“或”电路、符合配对电路及径迹数相加电路。
The GAL is applied to ORed circuit . Matched circuit and ADDed circuit which are used in the BES Track Trigger System.
本文简要介绍在北京谱仪触发判选的径迹系统中采用GAL器件作相“或”电路、符合配对电路及径迹数相加电路。
The GAL is applied to ORed circuit . Matched circuit and ADDed circuit which are used in the BES Track Trigger System.
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