Fire accident can arise from low-voltage arc fault, and so it is necessary to detect arc fault.
低压故障电弧有引发火灾的危险，所以检测故障 电弧是必要的。
Some cars equipped with high strength discharge headlights HID, the device through its pre designed electrical system generated high voltage arc discharge generated high density light source.
有些汽车装备了高强度放电前大灯hid，该设备通过其预先设计的电子系统产生的高压电弧放电生成高密度光源。
But the argon plasma arc voltage, low enthalpy is not high, cutting ability is limited, and cut the air than the thickness of the cut about 25% lower.
但氩气等离子弧的电压较低，焓值不高，切割能力有限，与空气切割相比其切割的厚度大约会降低25%。
The arc voltage, current, power and resistance of a nitrogen gliding arc in one period were studied.
以氮气滑动弧为例，分析了其在一个周期内电弧电压、电流、电阻和功率的变化特性。
When the current, voltage must be improved means that the improvement of arc enthalpy and cutting capability is improved.
当电流一定时，电压的提高意味着电弧焓值的提高和切割能力的提高。
Fuzzy control tests of arc voltage and short-circuit frequency are conducted to improve welding quality.
采用模糊控制技术，实现了电弧电压或短路频率的控制，提高了焊接质量。
From starting-up to stabilization of the arc, the electric current and voltage usually fluctuate acutely, which makes a great impact on other circuit components.
由电孤启动到正常工作这段时间，电网线路的电流电压波动性较大，往往给电路其它各元件造成强烈的冲击。
An arc due to an AC signal usually quenches itself as soon as the voltage level passes through zero.
交流(ac)信号产生的电弧通常在电压通过零点时就会自己熄灭。
Four, arc voltage: generally believe that the power supply is normal output voltage for cutting voltage.
电弧电压：一般认为电源正常输出电压即为切割电压。
An index within the gradient information of the arc voltage on the local region of zero can reflect fault location effectively.
含有电弧电压在零区梯度信息的指标可以有效地反映故障位置。
Because the hydrogen can significantly improve the arc voltage, make hydrogen plasma jet has high enthalpy, when mixed with argon plasma jet, the use of cutting ability is greatly increased.
由于氢气能显著提高电弧电压，使氢等离子射流有很高的焓值，当与氩气混合使用时，其等离子射流的切割能力大大提高。
Arc voltage and welding current are signal source.
以电弧电压和焊接电流为采集的信号源。
The result shows that this control system responds quickly with high control precision and can control the arc voltage steady.
试验结果表明该控制系统响应速度快，控制精度高，可实现对电弧电压的稳定控制。
Testing results show that the major factors affecting the deposition efficiency are the welding current, arc voltage and gas flow rate under the condition of same circuit inductance.
试验结果表明，在回路电感值不变的条件下，焊接电流、电弧电压和气体流量是影响熔敷效率的主要因素。
The experimental results indicate that the instantaneous energy can synthetically reflect the influence of current and voltage on dynamic arc characteristics.
试验结果表明，瞬时能量可以综合地反映电流电压对电弧动态性能的影响。
If this arc voltage saltation information can be extracted, we will get the characteristic information of necking down formation.
若能从电弧电压信号中提取出拐点发生时突变的信息，则可望提取到缩颈发生的特征信息。
The effect of fluxes on arc voltage is studied.
系统的研究了活性剂对电弧电压的影响。
Based on optoelectronic measuring system, arc voltage drops are observed in arc running process of current limiting circuit breaker.
本文采用光电测试系统，观察到在低压限流断路器开断过程中的电弧电压跌落现象。
According to the signals of arc voltage errors and arc state, four control regulations and counting measure of control parameters are designed.
根据电弧电压偏差信号及电弧状态，设计了四个控制规则及其控制参数的计算方法。
The welding current, arc voltage, preset current, the period and ratio of pulse, base current, down slope time, gas pre and post flow time are sampled, calculated and controlled by microprocessor.
单片机对焊接电流、电弧电压、电流给定、脉冲周期、占空比、基值电流、收弧电流衰减时间、前气和后气时间等焊接参数进行采样、计算和控制。
The amplitudes of secondary arc current and recovery voltage are two decisive factors to extinguish secondary arc.
稳态下潜供电流和恢复电压幅值是潜供电弧熄灭的两个决定性因素。
Instead, they make use of an inert gas, such as Xenon, which emits light when it comes in contact with a high voltage electrical arc.
相反，他们使用一种惰性气体，如氙，散发出淡淡的当它接触到高压电器电弧。
A plasma torch's height control system which is based on plasma arc voltage measuring is introduced.
设计了一种基于等离子电弧电压检测的割炬高度控制系统。
The second is, when steel is welded by means of VPTIG of argon, the changes in current, voltage and arc shape.
第二部分研究了在氩气作保护气体的情况下，用变极性TIG焊方法焊钢时，焊接电流、电压的变化情况和电弧形态的变化。
A non power supply probe was developed to detect the plasma cloud voltage, which consists of plasma arc voltage gradient and plasma sheath voltage.
文中采用无源探针对由等离子弧梯度电压和等离子鞘层电压构成的等离子反翘(等离子云)电压进行检测。
The main welding parameters such as welding current, arc voltage and welding speed have been optimized by the orthogonal test and welding arc dynamic wavelet analysis instrument.
运用正交试验，结合自行研制的焊接电弧动态小波分析仪对焊接电流、电弧电压、焊接速度等主要焊接工艺参数进行了优化研究。
In the thesis, high-voltage pulse was to re-ignite arc successfully.
本文通过施加高压稳弧脉冲的方法成功解决了再引燃的问题。
Arc current reducing rate and arc voltage at the time of arc discharging are established for every mathematical model.
得到电弧放电瞬间每一模型下的电流变化率和电弧电压。
According to the voltage and current waveforms of arc, an ideal voltage current transform characteristic curve and an equivalent circuit representing for long arc have been described in this paper.
根据长电弧电压电流波形，建立了电压方波电弧的理想电压电流转移特性曲线和对应的电弧等效模型。
According to the voltage and current waveforms of arc, an ideal voltage current transform characteristic curve and an equivalent circuit representing for long arc have been described in this paper.
根据长电弧电压电流波形，建立了电压方波电弧的理想电压电流转移特性曲线和对应的电弧等效模型。
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