并对实际发生的弧光接地过电压进行了分析。
Analysis of grounded overvoltage through arc at field has been also carried out.
随着配电网中采用的电缆线路的增多，弧光接地过电压问题日益突出。
With the increase of used cable lines, the problem of arc grounding overvoltage is more prominent.
介绍了三相五柱式消弧线圈的工作原理，单相电弧接地过电压的工频熄弧理论。
The principle of arc-suppression coil with three phases and five columns , and theory of power frequency extinguishing arcing were introduced.
减小接地故障点的残流有利于接地电弧的瞬间熄灭及降低间歇性电弧接地过电压。
The reduction of the residual current of the ground-fault point is beneficial to the extinction of the grounding arc and to the reduction of the intermittent arc grounding over voltage.
这样通过延伸机组的接地网进一步降低接地电阻，使雷电流迅速流散入大地而不产生危险的过电压。
Therefor by earthing connected net of set, it reduce earthing resistance, make the electricity discharge in earth prompt without dangerous overvoltage.
相对于中性点非直接接地系统而言，发生在中性点直接接地系统中的铁磁谐振过电压有着许多新的特点，而且对它的研究相对较少。
Compared with neutral ungrounded power system, ferroresonance overvoltage occurred in neutral grounded power system has more new features, and the research about it is much.
变电站避雷器安装位置和数量及输电线终端塔的接地电阻对雷电过电压有著直接的影响。
The location and quantity of arrestor and impulse grounding resistance of towers has direct influence on lighting overvoltage.
为减少产生谐振，降低内过电压，中性点接地电阻器在中压电网的应用越来越多。
For decrease of harmonics and switching overvoltages the application of neutral grounding resistors is spreed.
分析了中性点接地电容器组内部故障时的内部过电压和相电流变化，并给出了相应计算公式。
This paper analyses the internal overvoltage and the phase current of grounded wye shunt capacitor bank when there are failures in it, and gives corresponding equations.
但经多年的运行，各地普遍认为小电阻接地方式比消弧线圈接地方式的过电压水平要低，但同时反映出的运行状况却存在较大差异。
It was reported that the overvoltage level of low resistance grounding mode is lower than that of arc suppressing coil mode, but the operation carried out the other way.
并详细介绍了作者设计的一种过电压保护接地装置。
An earthing device of overtension protection will be introduced.
在中性点不接地系统中，过电压也可能主要由某些类型的不对称故障所引起。
Overvoltages may also BE produced by certain types of asymmetrical fault mainly on systems with ungrounded neutrals.
在中性点非直接接地电网中，单相接地及由电压互感器(PT)引起的谐振过电压均是多发性的事故。
In ungrounded distribution system the single-phase-grounding and the ferro-resonance caused by the PT (Potential Transformer) are of the frequent accidents.
国产智能型消弧限压接地补偿成套装置在限制谐振过电压方面，克服了老式调匝式消弧线圈存在的缺点。
The paper introduces equipment of intelligent arc suppression coil grounded compensation. Itovercomes shortcoming in restricting harmonic over-voltage existed in old arc suppression coil.
简单介绍了级间配合，抑制横向过电压的产生，以及接地阻抗的简单计算和正确选用等，以达到对电源系统的有效防雷保护。
The paper describes the coordination of the multi-grade surge protection, the suppression of the transfer over voltage, as well as the calculation a…
简单介绍了级间配合，抑制横向过电压的产生，以及接地阻抗的简单计算和正确选用等，以达到对电源系统的有效防雷保护。
The paper describes the coordination of the multi-grade surge protection, the suppression of the transfer over voltage, as well as the calculation a…
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