本研究设计了一种超声频脉冲等离子切割电弧发生系统，并通过实际切割试验，测试、分析了这种高频脉冲电弧的振动特性。
This study designed a system to generate ultrasonic-frequency pulsed plasma cutting arc, and experimentally investigated the vibration characteristics of the high frequency pulsed arc.
在高热流条件下电热毛细管材料的消融过程中 ，会形成壁面蒸气罩效应 ，这种等离子体壁面蒸气罩特性对消融控制电弧发生器的工作性能非常关键。
While the capillaries materials are being ablated under the high heat fluxes condition, vapor shield often occurs near the inner wall, which could help control the surface being eroded furthermore.
电的最后结果发生时，有电线导体短路(有电弧放电的现象)或电线导体开口暴露的现象。
Electrical end results occur with the shorting together of the cord conductors (evidence of an electrical arc discharge exists) or with the opening of either or both of the cord conductors.
电力系统中，高压输电线路是最容易发生故障的部分，单相电弧故障是其中最主要的故障形式，并且往往是弧光高阻故障。
In power system, the kinds of faults often occur on HV transmission line, and the single-phase-to earth arcing faults are the main forms of the faults.
结果显示，气流的改变主要受电弧瞬时功率控制，最大流量不是发生于压力峰值时刻而是出现在电流过零时。
It is found that the gas flow is mainly controlled by instantaneous arc power and the maximum of gas flow appears not at peak pressure, but at current zero.
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。
If this arc voltage saltation information can be extracted, we will get the characteristic information of necking down formation.
首先通过测量阻抗轨迹法对异相短路故障的测量阻抗的进行分析，得出牵引网发生异相高阻电弧短路故障时，常规原理的阻抗保护将拒动的结论。
Conventional impedance relay will refuse to trip according to an analysis of measuring impedance by means of impedance locus method when wrong-phase-coupling of traction power supply system occurs.
在火花试验装置上进行爆炸试验，得到本质安全复合电路的放电波形，发现电弧电压基本维持在最小建弧电压，而电容电流随着电路参数的不同而发生振荡。
It was found that when the capacitive ignition occurred, arc voltage will keep minimum arcing voltage, but arc current possibly attenuates in sinusoidal form with different circuit parameters.
为了获得比较均匀的大面积直流电弧等离子流，设计了一种利用外磁场驱动电弧旋转的等离子发生器。
In order to obtain a more uniformity flow of the dc arc plasma, the large-scale arc hollow electrode plasma generator with an outer magnetic field is designed in this paper.
发生电弧故障时，很小的电弧电流都能产生局部高温，一旦周围有可燃物就容易导致火灾发生。
When an arc fault occurs, the arc current can produce local high temperature and may cause fires if combustible materials surrounded.
由于噪声的存在，会使测试分析系统所采集到的焊接电弧电信号的数据误差增大，数据的精确程度会受到干扰而发生变化。
Welding arc data error of signal collected will be increased by the existence of noise. Accurate degree of data will be interfered and change.
探讨了电弧等离子体发生器的静态伏安特性以及气体流动状态对等离子体发生器热效率、热焓的影响。
Static characteristics of arc plasma reactor and the influence of flowing gas state on the thermal efficiency and stagnation enthalpy of plasma torch has been investigated.
组成能解决交流供电时产生的吸合不紧密，强烈振动、噪声、甚至发生电弧等问题。
The utility model can solve the problems of no tight attraction, intense vibration, noise and electric arc when alternate current supplies power. The attracting voltage can be lowered to 120V;
组成能解决交流供电时产生的吸合不紧密，强烈振动、噪声、甚至发生电弧等问题。
The utility model can solve the problems of no tight attraction, intense vibration, noise and electric arc when alternate current supplies power. The attracting voltage can be lowered to 120V;
应用推荐