此时电压互感器的励磁阻抗和系统的对地电容形成非线性谐振电路。
At this moment, the excitation voltage transformer impedance and the system-to-ground capacitance come into being non-linear resonant circuit.
配电网正常运行时,装置自动跟踪电网参数并计算相对地电容电流。
Under normal operation of distribution network, the device automatically traces network parameters and calculates phase-to-ground capacitive current.
随着配电网的不断扩大以及使用电缆线路的增多,电网对地电容电流越来越大。
With distribution network extending and increasing of apply more cable, the system capacitance current is increasing.
为配合随调式消弧线圈的使用,提出了一种扫频检测系统对地电容的改进型方法。
In coordination with the application of post-set arc suppression coil, a frequency scanning based modified method for detecting system capacitance to earth is proposed.
对于中性点不直接接地的发电机,由于三相对地电容值存在差异,中性点与地之间存在一定电压。
Due to three-phase capacitance to ground, certain voltage exists between the neutral and the ground for a generator with ungrounded neutral.
文中介绍智能式电容耦合测试系统,该系统能自动测量电缆的工作电容、电容耦合和对地电容不平衡。
A intelligent capacitance-coupling testing system is introduced in this paper. It tests mutual capacitance, capacitance unbalance - pair - to - Ground and capacitance - coupling automatically.
该测量方法的提出彻底解决了传统绝缘参数间接测量法只能测量电网对地阻抗近似代替对地电容的缺陷。
This presented method thoroughly gets over a gap that foregone indirect methods can only measure insulation impedance to substitute distributing capacitance.
通过理论分析和有限元计算可以看出,电容近炸引信对地电容方程可以用等效球电极的电容方程来建立。
The formulation of the capacitance vs ground of the capacitance proximity fuze can be set up by the equivalent spheroid electrode.
高频匹配网路主要采取集中参数低通形式,串联部分电感、电容参加匹配,并联部分对地电容参加匹配。
The high frequency matching network mainly used lumped element lowpass network, including the series capacitance , series inductance and shunt grounded capacitance.
高频匹配网络主要采取集中参数低通形式,串联部分电感、电容参加匹配,并联部分对地电容参加匹配。
The high frequency matching network mainly used lumped element lowpass network, including the series capacitance, series inductance and shunt grounded capacitance.
如何有效地判断系统接地故障后运行方式的变化以及如何有效地测量与之对应的对地电容是目前没有解决的问题。
The solution has not been found how to judge the resonant state during the single-phase grounding existing on-line.
地电流干扰主要是由于半导体器件开关动作产生的快速上升和下降的开关电压作用在对地电容上产生的位移电流形成的。
The grounding current EMI is caused by charging and discharging of the parasitic capacitances between the circuit and ground during the switching instant devices.
在此基础上,选择了对地电容电流测量的注入变频信号法,该测量方法具有测量误差小、实时性良好、安全可靠的特点。
On the basis of this, injecting frequency conversion signal method on measuring capacitive current is selected to use here. It is reliable and its error is small, timeliness is good.
同时在考虑消弧线圈自身损耗电导和线路对地电导的基础上,推导了电网对地电容电流和消弧线圈调谐参数的实时计算方法。
Based on arc suppression coil self-loss conductance and line-to-ground conductance, the power grid-to-ground capacitive current and arc suppression coil tuning parameters is calculated.
经过仿真实验分析,表明该方法可以克服对地电容对接地故障检测的不利影响,完成故障信号分析,实现故障支路的准确定位。
The simulation result shows that the method can overcome the influence of the capacitors, analyze the fault signal and find the fault branch accurately.
随着电缆在配电网中的大量应用,系统电容电流水平不断提高,准确便捷地测量配电网系统对地电容电流成为研究领域的热点。
More and more researchers focus on how to measure the capacitance current to the ground of the distribution network system precisely and swiftly.
随着电缆在配电网中的大量应用,系统电容电流水平不断提高,准确便捷地测量配电网系统对地电容电流成为研究领域的热点。
The cable outlets for 10kV distribution network system are added and the network is continuously expanded, the system principle of the netural point though arc suppression coil grounding is analyzed.
本文针对直流电机调速装置输入和输出侧退耦电容对地电流干扰的影响进行研究。
This paper analyzes the effects of the input and output decoupling capacitances on the grounding current EMI in DC motor drives.
本文针对直流电机调速装置输入和输出侧退耦电容对地电流干扰的影响进行研究。
This paper analyzes the effects of the input and output decoupling capacitances on the grounding current EMI in DC motor drives.
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