提出了限制短路电流的方法—串联电抗法。
And put forward a method to limit short-circuit current—series reactance method.
为降低大容量输电系统的短路电流水平,提出一种基于饱和电抗器的串联谐振式故障限流器。
With a view to reducing the short circuit current level of large capacity transmission systems, an in-series resonant type FCL based on saturated inductor is presented.
介绍了利用故障电压和故障电流计算故障回路电抗值的电抗法故障点定位的原理。
The theory of fault locating by calculating the reactance of feeder line with measured fault current and voltage is introduced.
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.
磁势自平衡回馈补偿式直流传感理论是在电抗器磁势自平衡原理与差值电流回馈补偿原理的基础上,将两者相结合而形成的一种新的传感原理与方法。
The paper briefly describes the theory of direct current sensor based on magnetic potential self-balance and feedback compensation and the structure of prototype machine based on this theory.
由于并联电抗器两侧的电流发生变化,传统的行波差动保护无法应用于带并联电抗器的输电线路。
Because of the current on the shunt reactor, traditional traveling wave differential protection cannot be applied to transmission line with shunt reactor.
分析了导致不带平衡电抗器的整流机组直流负载拐点电流超出许可范围的成因;
The cause that transition current of DC-load in rectifier unit without balance reactor exceeds the range of permission is discussed.
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.
联接在中性点与地之间消弧线圈的电抗值要在抵消90%至110%容性电流所需值的范围内。
The reactance of this coil, which is connected between the neutral, and ground is made in the range 90 to 110 per cent of the value required to neutralize the capacitance current.
变压器式可控电抗器与磁饱和式可控电抗器相比,谐波电流更小、响应速度更快、功率损耗更小。
Compared with the magnetic valve type controlled shunt reactor, the transformer type controlled shunt reactor is superior in its smaller harmonic current, faster respond speed and less power loss.
这里须滤去由电抗器相位控制引起的谐波电流以避免不能接受的输电母线电压畸变。
These may be required where harmonic currents caused by the thyristor phase control of the reactor current must be filtered to prevent unacceptable transmission bus voltage distortion.
限流电抗器电抗值选择时既要将短路电流限制到规定值,又不能使电压损失过大。
When the reactance value of current limiting reactor is selected, the short circuit current should be limited within the specified value and the voltage loss should not be too much.
支路电抗、电流和功率等参数的计算是多并联支路型可控电抗器分析设计的关键。
It is the key-point that the branch-parameters, such as reactances, currents, power and etc., are calculated for the controllable reactor of multiply parallel branch type.
采用短路电流控制器和动态电子电抗器,实现了脉冲MIG焊动态特性的自适应控制。
The self-adaptation control of dynamic characteristics of pulsed MIG welding was achieved by a short circuit controller and a dynamic electronic inductor.
提出了一种在考虑电流挤流效应的情况下如何计算箔式电抗器交流电阻和等效电感的方法。
In this paper, a new method considering the influence of the skin-effect is given for calculating the inductance and losses of foil winding reactors with air-core.
可控饱和电抗器在动态无功补偿、电机软启动、小电流接地选线等方面具有广阔的应用前景。
Controllable saturated reactor is widely used in dynamic reactive power compensation, induction motor soft-starting and fault line selection of small current grounding system.
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.
提出了一种新的适合于GTR电流型变频器整流器部分的PWM控制方法,推导出了在准圆轨迹PWM控制规律下,整流器输出电压的计算公式和平波电抗器电感量计算的实用公式。
A new PWM control method for GTR current source rectifier is presented. The mathematical formulae that output voltage of the rectifier and inductance of the DC filter are derived.
利用大容量高速开关装置,在正常运行时将串联电抗器短接,消除电抗器漏磁通对其周围的金属产生的涡流发热;在发生短路情况下该装置快速断开,重新将电抗器投入,限制短路电流。
By high capacity high-speed switch, the series reactor is shorted during normal operation, eliminating the reactor leakage magnetic flux to eddy hot produced metal member around it.
并联电抗器可以降低线路的稳态电容电流,但对故障暂态电容电流的作用不明显。
Shunt reactors can reduce the steady capacitive current but have unobvious effect on fault transient current.
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.
特高压长线路可能在线路中间接入并联电抗器,从而有效补偿线路电容电流,抑制空载线路过电压。提出了在特高压长线路中间带并联电抗器时的线路分相电流差动保护原理。
Shunt reactor could be installed in the middle segment of the UHV transmission line, in order to compensate capacitive current of transmission line and limit over-voltage of line without load.
双反星型,平衡电抗器及平波输出电路,焊接电流稳定。
Double reversed star shape, interphase reactor, flat wave output circuit, stable welding current.
脉冲电抗器在其中主要起到对放电电流的限流及调整脉冲宽度的作用。
The main functions of the pulsed reactor are current limiting and pulse width adjustment.
例如各种滤波环节、电抗器之类的惯性环节、电流自适应环节以及函数发生器环节等等。
For example each kind of filter link, reactor and so on inertia link, electric current auto-adapted link as well as function generator link and so on.
根据华东电网短路电流水平的分析结论,对串联电抗器参数设计和安装地点进行了初步分析。
According to the analytical conclusion on the short-circuit current level of the East China Power Grid, the design of parameters...
根据华东电网短路电流水平的分析结论,对串联电抗器参数设计和安装地点进行了初步分析。
According to the analytical conclusion on the short-circuit current level of the East China Power Grid, the design of parameters...
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