The principles and protection disposition of adaptive reclosing are introduced emphatically, and the voltage criterion with shunt reactor has been made improvement.
文章着重介绍了该项目的自适应重合闸的原理及保护配置,并对带并联电抗器的电压判据作了改进。
Voltage sag, as one of the important aspect of power quality, its research is just underway in our country, which has no criterion related.
而作为电能质量中的一个重要方面——电压凹陷,在我国的研究则刚刚起步,至今没有相应的国家标准。
Adopting this criterion, the switching times of loaded taps can be efficiently decreased and the voltage quality improved, while the var control times and var compensation effect keep unchanged.
采用该判据,可以在保持无功调节次数和无功补偿效果不变的情况下,有效地减少有载分接开关的调节次数并提高电压质量。
The response of the rotor voltage variation is taken as the criterion which is different from the conventionally used ones.
本装置采用的判据是反应转子电压变化量,与传统的转子判据不同。
For the receiving end, a new switching criterion based on the bus voltage is described, which is immune to the system parameters.
对受端继电器,提出仅利用保护安装处的电压变化值构成同相点切换判据,可以有效降低系统参数的影响。
A new high speed protection criterion for high voltage transmission line based on the wavelet transform of transient voltage signals from the two ends of the line is presented.
提出了一种基于双端电压暂态信号小波变换的高压输电线路快速保护算法。
Set up the circuit design criterion for the steady - stage deadbeat control to the line current of a three - phase high-power-factor rectifier based on voltage space-vector PWM.
建立了对基于电压空间矢量pwm的三相高功率因数整流器实现电流稳态无差拍控制的设计准则。
In the system, a computer is applied to adjust a D/A device and a precise voltage divider for criterion signal output.
该系统利用计算机控制D/A转换器及精密电阻分压器,输出标准电势作为被检仪表的信号源;
The uniform criterion, principle and methods of configuration for under-voltage load shedding in domestic power grids is lacking until now.
对于低压减载配置,国内至今还没有一个统一的标准、配置原则和配置方法。
For the establishment and execution of new state detection criterion, this paper introduces a withstand voltage test system which corresponds to the standard of IEC61010.
为了配合仪器设备电气安全性能检测新国标的制定和实施,设计了符合IEC61010标准的耐压测试系统。
The approach, which takes the ratio of the stator voltage to current as the control criterion, improves the efficiency and power factor of asynchronous motors.
仿真计算及实验结果表明该控制方案可以使异步电动机在不同的负载下均呈现出较高的效率,并且兼顾提高功率因数。
The approach, which takes the ratio of the stator voltage to current as the control criterion, improves the efficiency and power factor of asynchronous motors.
仿真计算及实验结果表明该控制方案可以使异步电动机在不同的负载下均呈现出较高的效率,并且兼顾提高功率因数。
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