电抗器匝间故障时,电容器与电抗器电压比将发生变化;
The voltage ratio of the capacitor and reactor will change when the fault occurs.
基于ATP的仿真和Matlab的运算表明基于电容器电感器电压比的电抗器匝间短路保护,能够对匝间故障做出快速而正确的判断。
ATP simulation and MATLAB calculation show that the voltage ratio protection against inter-turn fault of reactor can make correct judgement to this kind of fault quickly.
在给定自激电容、转速和负载的情况下,通过计算激磁电抗与输出频率,进而得到外特性。
Under the values of given self-excited capacitors, rotor speeds and loads, the external characteristics are obtained by calculating the magnetizing reactance and frequency.
随着频率增加,理想电容的电抗会接近零。然而,这是不可能的,市场上没有这样理想的电容。此外,铅和IC封装也会增加电感。应该用多个低esl 。
In addition, the lead and the IC package add inductance as well. Multiple capacitors with low ESL (Equivalent Series inductance) should be used to improve the decoupling effect.
不同电抗率的电容器组对谐波有不同的作用。
Capacitor Banks with various reactance ratio have different functions to harmonic.
并联电容器组与电抗器串联具有滤波功能,同时也会与系统发生并联谐振。
Shunt capacitor bank in series with inductance can filter harmonic while resulting in parallel resonance.
分析与计算结果表明,因串联电抗器的电抗率不同,其流进电容器回路的谐波电流也截然不同。
Analysis and simulation results show that different harmonic currents flowing into the capacitor circuit is different due to different reactance ratio of series reactor.
研究表明,增加引线数目、引线间距和加长顶线长度均可以增加天线系统的静电容,减小输入电抗的模值,并使天线的增益有所改善。
It is hold that one can increase static capacitance, reduce mode of input reactance and enhance the antenna gain by increasing down lead wires, their distances or lengthening the top loading wires.
同时研究了引线及顶线的各项参数变化对天线的有效高度、增益、输入电抗、辐射电阻及静电容的影响。
The affection of parameter variation of down lead wires and top loading wires on effective height, radiation pattern, input reactance, radiation resistor and static capacitance is discussed.
采用4.5%和12%两种不同电抗率下的电容器组,可有效地抑制5次、3次两个主要谐波。
Using capacitor bank with two different reactance rates, 4.5%and 12%, can effectively suppress two main harmonies 3rd and 5th.
本文在讨论了LC串联电路之后,提出了与电容器配套使用的电抗器电抗率的选取方法。
This paper discussed the LC series circuit, then proposed method to select the reactor reactance rate to support the use of the capacitor.
选择IPC电容器、电抗器的参数调整时间,对调控过程中IPC电容器的电流冲击和电抗器的电压冲击进行有效抑制。
The current impact in capacitor and the voltage impact on reactor in the control course can be restrained by selecting the right time to adjust IPC' s parameter.
为避免谐波问题造成的电容器等设备损坏,提出了根据电容器和电抗器的滤波能力,把谐波抑制功能加入电压无功控制(VQC)装置。
To avoid device damage caused by harmonic wave, a VQC device integrating harmonic suppression function is presented in terms of the filter capability of capacitor and reactor.
在电力系统物理模拟试验中,提出了对模拟变压器电抗过大的串接电容补偿方法,该方法可以降低变压器的对外等效电抗。
This paper presents series-capacitance compensation method that can reduce the over-reactance of imitating transformer to meet equivalent reactance in power system imitating experiment.
电容式电压互感器(CVT)的补偿电抗器不但影响电压比的准确度,而且还影响它的额定容量。
Compensating reactor in a Capacitive Voltage Transformer (CVT) influences not on-ly its ratio error, but also the rated output capacity.
变电所无功补偿电容器与串联电抗器的不同组合对系统谐波的影响不同。
Different combination pattern of reactive power compensation capacitors with series reactors in substations has different influence on harmonics in the power system.
但是CVT内部等值电容与电抗串联可能产生次谐波谐振,引起过电压,会使CVT损坏。
The subharmonic vibration, however, caused by the series connection of equivalent capacity inside CVT with the reactor may lead to over-voltage which might damage CVT.
更重要的是,该补偿装置使用的电抗和电容元件比传统SVC中的电抗器和电容元件小。
The most significance is that the resistance and capacitance, which have been used in this device, is smaller than in traditional SVC.
讨论了空载线路在电容效应下产生的工频过电压,并对并联电抗器抑制工频过电压的作用进行了理论分析。
The power frequency overvoltage of unloaded line because of the capacity effect is studied, and the effect of eliminating power frequency overvoltage using shunt reactors is analyzed.
提出了按电容支路串联谐振频率点选择电抗值的方案。
The reactor value choosing method of capacitor and reactor circuit resonance frequency point in series is put forward.
目前大部分厂商采用角型连接电容器串接14.5%电抗器滤除3次谐波,其实作用甚微。
At present most of manufacturers filter 3rd harmonic by using Angle glaucoma connection capacitor to connect 14.5 reactance, in fact there is only slight effect.
系统地分析了ASVG直流侧电容量、变压器电抗值以及控制参数对电力系统稳定性的影响;
The influence of the DC capacitor value. transformer reactance and controller parameters on power system stability is analyzed.
连接于极线的输电设备主要有平波电抗器、滤波电容器、直流电压分压器、光学电流传感器、直流避雷器等。
The equipment which connected in the DC bus includes smoothing reactors, capacitors, voltage dividers, optical current transducers and arresters.
有多种方法来连接电容器和电抗器转化为一个滤波电路。
There are various ways to connect capacitors and chokes into a circuit for filtering.
有各种不同的方法连接电容器和电抗器为电路的滤波。
There are various ways to connect capacitors and chokes into a circuit for filtering.
有用于过滤两部分组成:一个电容器用于过滤的电压和电感器或电抗器进行过滤的电流。
There are two components used for filtering: a capacitor is used to filter the voltage and an inductor or choke to filter the current.
随着频率增加,理想电容的电抗会接近零。
The reactance of an ideal capacitor approaches to zero with increasing frequency.
提出了防止谐振的措施对补偿电容器及串联电抗器长期容许高次谐波电流值进行了分析和计算。
The permissible harmonic current of high order for long term in the compensative capacitor and series reactor were analyzed and calculated, as well as some tables calculated for reference were given.
提出了防止谐振的措施对补偿电容器及串联电抗器长期容许高次谐波电流值进行了分析和计算。
The permissible harmonic current of high order for long term in the compensative capacitor and series reactor were analyzed and calculated, as well as some tables calculated for reference were given.
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