The principle of capacitance current measurement based on the injecting signal is discussed.
论述了采用注入变频信号测量电容电流的原理。
The ground capacitance current can thus be calculated using the two resonance frequencies for the power systems.
用两次获得的谐振频率,可以准确计算电网的电容电流。
The method obviously improves the precision of capacitance current calculation and will be further used in practice.
该方法显著提高了电容电流的计算精度,并将进一步在实践中应用。
With distribution network extending and increasing of apply more cable, the system capacitance current is increasing.
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。
A study on an auto compensation of capacitance current should be highly conducted to improve the technical level of the leakage check relay.
但应努力开展电容电流自动补偿的研究工作,以进一步提高检漏继电器的技术水平。
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。
Simulation results show that it is necessary to consider capacitance current compensation in the phase-splitting current differential protection scheme for HTS power cable;
结果表明,在高温超导电缆分相电流差动保护方案中必须考虑电容补偿;
The equipment is applicable for the distribution network of small capacitance current, grounding through high resistance and the capacitance current of which varies greatly.
该装置适用于电网电容电流变化范围大、小电容电流、高阻接地的配电网系统。
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.
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。
In this article, the action characteristic of phase current-differential criterion in EHV system and the effect of capacitance current compensation have been analyzed using EMTP simulation result.
利用EMTP仿真结果分析了这相电流差动判据在超高压系统中的动作特性和电容电流补偿的效果。
Mutual capacitance: A layer of driving lines carries current.
互电容 :一层含有电流的驱动线路。
Noise can seriously affect sensitive current measurements. This section discusses how source resistance and source capacitance affect noise performance.
噪声能够严重地影响灵敏的电流测量工作。本节讨论源电阻和源电容如何影响噪声的性能。
The effects of input capacitance on current measurements using a shunt type ammeter (Figure 2-49) are similar to those for voltage measurements.
使用分流型安培计(图2 -49)时,输入电容对电流测量的影响与电压测量时类似。
The effect of aging voltage on the capacitance and leakage current of al electrolytic capacitors.
老练电压对铝电解电容器容量和漏电流的影响。
With this shield in place, the noise current generated by the electrostatic voltage source and the coupling capacitance flows through the shield to ground rather than through the signal conductors.
有了这种屏蔽,由静电电压源和耦合电容产生的噪声电流就经过屏蔽流到地,而不再流过信号线。
As shown in Figure 2-35, the shunt capacitance (CSHUNT) must be charged to the test voltage by the current (IS).
如图2 - 35所示,并联电容(CSHUNT)必须由测试电流(IS)充电到测试电压。
Additional capacitance will be required at the VS pins to handle load current peaks and potential motor regeneration.
在VS引脚处需要额外的电容来处理负载电流的峰值和电位电机的再生。
In this case, the series resistor should be placed as close to the relay as possible to limit the current when charging the cable capacitance.
在这种情况下,串联电阻就应该尽量靠近继电器,以限制电缆电容充电时的电流。
It consists of a nonlinear voltage-controlled current source, a nonlinear voltage-controlled voltage source, and capacitance.
该模型由一个非线性电压控制电流源、非线性电压控制电压源、电容构成。
It is indicated that the current and capacitance model is continuous and accurate across the linear and saturation regions without any unphysical interpolation scheme.
电流和电容模型在线性区和饱和区都是连续和准确的,不需要没有物理意义的光滑处理。
Several test results, such as reverse voltage, photo sensitivity, dark current, terminal capacitance, terminal impedance, position distinguishability, position Iinearity, were reported in the paper.
给出反偏电压、光谱响应、暗电流、极间电容、极间阻抗、位置分辨率和位置线性特性等性能的测试结果。
This paper analyses the existing zero sequence directive current selective leakage protection principle which is to surmount the effect of distributed capacitance on it.
对近期提出的克服电网分布电容影响小电流接地选线的零序直流选择性保护原理作了理论分析。
Subsequently, we study the evolution of the quantum state, the quantum squeezing effects of the charge and the current, and the quantum CR phenomenon of the tunneling current in the capacitance.
研究了电路量子态的演化,电路中电荷及电流的量子压缩效应以及介观电容器中隧穿电流的量子崩塌与复苏现象。
The intergral implement of this scheme can use operational amplifier and change current of 0-500A to voltage of 0-10V by selecting resistance and capacitance properly.
该系统的积分环节可采用运放作为核心器件,通过适当选择电阻和电容大小与线圈的互感匹配,将0~500A的电流转换为0~10V的电压进行测量;
The law that the voltage on a capacitance and the current in a inductance can't leap is deduced in the case that the voltage and the current are finite.
电容电压与电感电流不能跃变的换路定率,是在电容电流与电感电压为有限值情况下推导出来的。
The voltage of the capacitance which is on the DC side of the inverter is stabilized by using PI control strategy, which ensures the DSTATCOM 's good current tracking performance.
应用PI控制使逆变器直流侧电容电压保持稳定,保证DSTATCOM良好的电流跟踪性能。
The results show that the new material possesses higher specific capacitance and performs much better than activated carbon under high current densities.
结果表明,新材料的比容量和大电流充放电性能均优于碳材料。
The results show that the new material possesses higher specific capacitance and performs much better than activated carbon under high current densities.
结果表明,新材料的比容量和大电流充放电性能均优于碳材料。
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