由电孤启动到正常工作这段时间,电网线路的电流电压波动性较大,往往给电路其它各元件造成强烈的冲击。
From starting-up to stabilization of the arc, the electric current and voltage usually fluctuate acutely, which makes a great impact on other circuit components.
从消费性电子产品与电信线路,到汽车与工业设备等种种应用,力特的产品都是不可或缺的重要元件。
Littelfuse products are essential to all kinds of facilities from consumable electrical goods to the telecommunication lines, from automobile to industrial facilities.
需要注意的是如果变压器和线路耦合元件精确的已知,识别算法在无噪声环境里精确的距离超过18千英尺。
It should be noted that if the transformer and line coupling components are known precisely, the identification algorithms are accurate beyond 18 KFT for noiseless conditions.
一类是电力系统的典型元件,如发电机、变压器、输电线路。
One is the typical power system components, such as generator, transformer and transmission lines.
磁性设计包括材料选择、器件的测试、电子线路的布置和元件的安排等。
Magnetic design includes choice of materials, testing devices, electronics components and circuit layout the arrangement.
阻抗特性是电子元件在电子线路应用中一个重要的参数。
Impedance characteristic is an important parameter of electronic components using in electronic circuitry.
基于以上两点,再利用继电控制线路图上表达出的驱动元件与开关之间的关系,实现了对继电控制系统的功能仿真。
Based on the batch idea, switching function, and the driving relative between element and switch, a computer method for analyzing delay control circuit is implemented.
距离保护测量元件在线路保护中有广泛的应用。
The measuring elements of distance protection are extensively applied in transmission lines protection.
介绍了该电路的原理,线路,元件选择和安装调试等。
This paper introduces IC's principle, wires, element selection installation and testing.
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.
设备用途:用于灌注伺服电机定子,电容,变压器,点火线圈,和其他内部装有电子元件或线路的器件内。
Application: for filling Servo motor stator, apacity, transformer, ignition coil and other devices with internal electronic components or circuit.
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.
当电器元件的动作时间可能影响控制线路动作程序时,必须考虑元件的动作时间及配合方法。
Operation time of equipment components and cooperative methods must be considered if the operation time of the components will influence motion process of control circuit.
偏移特性阻抗继电器常用于小电流或大电流接地系统中作为输电线路距离保护的测量元件。
LZ-22 partial impedance relay usually used as measuring element on distance protection of the line at small or big current power system.
系统全部用硬件,线路简单,采用元件少,易于和监护仪、记录仪等共同组成系统。
It is an all-hardwared system requiring only a least amount of IC. Circuit is simple with few components. It is easy to form an integral system with the monitoring instrument and recorder.
以下元件安装在控制印刷线路板上。除非特殊说明,否则元件通过焊接固定于线路板。
The following components are mounted on the Control Printed Circuit Board. The components are secured to the PCB by soldering unless otherwise noted.
设计线路图,确定单支元件的最阻。
Design the circuit diagram and determine the resistance of the single element.
本实用新型属于电气线路连接元件。
The utility model belongs to a connecting element for an electric line.
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.
用于电子元件特别是声学表面波元件的多路印刷线路板以及在多路印刷板上构造针脚焊点,焊接架,隔片等的方法。
Multiple printed circuitboard for electronic components esp. acoustic surface wave elements, and method for constructing bumps, soldering frames, spaces on said multiple printed circuitboard.
由于采用的是最自然的指数曲线,所以我们的线路可以不需要高线性度的元件,因而降低了设计上的难度。
By utilizing the inherent exponential curves, high-linearity components are not necessarily required and the design efforts are relaxed.
通过对线路保护中启动元件的分析,提出了对现有微机保护的改进意见。
In this paper, the pickup units of transmission line relaying are analysed, the improving scheme of micro processor - based protection is put forward.
作为一种新型微波材料,广泛用于制作各种需要微波线路板的电器元件。
As a microwave material of new type, it is widely used in making electrical components of microwave wiring board for all kinds of needs.
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.
文章从线路板设计、焊膏选择、贴装控制等几个方面浅谈0201/01005元件装配工艺技术。
The article introduces 0201/01005 assembly process, including PCB design, the selection of solder paste and placement control, etc.
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.
该模型基于功率注入法,考虑了所在线路的对地电纳,且直观、简单、通用,适用于FACTS元件的多种运行方式和所有的FACTS设备。
This model based on power injection method, is intuitive, convenient and versatile, and can be used for various functional modes of FACTS devices and all FACTS devices.
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.
当电力系统发生故障时,系统中的保护装置动作,将故障线路或元件切除。
When a fault occurs in power system, the relevant relay will operate and send out trip order to clear the faulted transmission line or other parts.
当电力系统发生故障时,系统中的保护装置动作,将故障线路或元件切除。
When a fault occurs in power system, the relevant relay will operate and send out trip order to clear the faulted transmission line or other parts.
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