MW直流电弧的电流控制采用2台整流变压器控制,通过调节晶闸管桥触发角构成24脉波整流电路。
MW DC arc furnace uses the current 2-transformer rectifier bridge thyristor controlled by adjusting the angle trigger to compose 24 pulse wave rectifier circuit.
在MATLAB6.5环境下,通过编写和调试m文件,对电弧炉电极调节系统PD控制器进行设计与仿真。
Afterwards, the PD-controller of electrode regulator system of electric arc furnace is designed and simulated on MATLAB6.5 by compiling and debugging M-files.
激光-电弧复合焊接过程中,由于引弧产生的高频干扰了激光器的控制系统,造成了激光和电弧不能实现复合焊接。
In the course of laser-arc hybrid welding, the high frequency caused by drawing arc interfered the control system which make the laser and electric arc not able to realize the hybrid welding.
介绍了高压电弧触电、跨步触电实验器的设计思想及制作方法。
This article introduces the design thought and the facture methods about the experimental apparatus of high-voltage electric arc and stride getting an electric shock.
详细介绍了高速旋转电弧传感器的旋转驱动电路、位置检测电路以及焊接电流采样电路。
The rotary driving circuit, position detecting circuit, and welding current sampling circuit of the high speed rotating arc sensor are introduced in detail.
试验结果表明,该控制器能在控制实现电弧螺柱焊过程的基础上,通过采集焊接参数客观反映焊接过程的变化。
From the test results, it is indicated that the controller can not only realize arc stud welding procedure, but also describe the welding process by date acquisition of welding parameter.
分析了电流过零时喷口内电弧参数变化的原因,此外,从理论上对所研究的断路器的开断性能进行了分析。
Analyzing the variation of the nozzle arc parameters at current zero, in addition, analyzing the breaking property of the studied circuit breaker on the basis of the theory.
在扩散型电弧条件下对交流真空接触器触头侵蚀的特点进行剖析。
Under the condition of diffuse type of vacuum arcs the contact erosion rates in ac vacuum contactors are analysed.
利用该系统各种快速探针测出了电弧加热器射流的压力剖面、热流剖面和气流焓值。
By the use of this system pressure profile, heat flux profile and enthalpy of the jet of arc heater have been measured by various transient probes.
手工电弧焊的设备包括焊接电源、电流调节器、焊钳及电缆线。
Equipments for manual arc welding consist of power source, current regulator, electrode holder and cables.
晶闸管控制电抗器(TCR)以较好的解决电弧炉的无功补偿问题。
Among familiar compensators, Thyristor controlled reactor (TCR) is suitable for compensating the arc furnace.
通过对电弧运动的观察有助于更好地理解电弧的原理及对断路器进行改进。
Through observation of the arc movement, the principle of the arc can be understood better and performance of circuit breaker can be improved.
搭建了基于高速旋转电弧传感器的水下焊接焊枪偏差识别的实验系统。
An experimental system for underwater welding identification of welding torch offset based on high speed rotational arc sensor was established.
深入细致地分析了谐波、间歇电弧、电流互感器、负荷、过渡电阻等多个因素对故障选线结果的影响,为方案的实用化奠定了基础。
The influences of several factors such as harmonics, intermittent arc grounding, ct, load and fault resistance have been thoroughly analyzed, therefore, it is fundamental work for its application.
本文介绍了在14MW电弧加热器系统上进行电弧放电烧蚀发汗效果的试验研究。
This paper describes the experimental investigation reducing the ablation of an electrode in the 14mw arc heater by use of the transpiration cooling.
研究结果表明:供电、供气、控制等系统经过适当改造,电弧加热器可以实现变参数运行。
The results indicate that the arc heater can run with transient parameter when the power supply system, air supply system and control system were reformed appropriately.
对三相电容器的暂态过程进行了研究,提出采用接触器和小电流晶闸管组成混合开关,实现了合闸时无冲击电流及分断时无电弧。
This paper researches on three phase capacitor transients, presents a combined switch constructed of contactor and low current thyristors to realize non surge close and non arcing break.
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。
Based on optoelectronic measuring system, arc voltage drops are observed in arc running process of current limiting circuit breaker.
在传统的断路器中,这是通过使用电弧隔板来完成的,尽管不是非常迅速。
In traditional breakers this is accomplished using arc chutes, though not very quickly.
在传感器方面解决了错边干扰、定位焊点干扰及电弧高温的影响。
The problems of influences of edge displacement disturbance, tack weld disturbance and high arc temperature on the sensor have been solved.
直流电弧炉用整流变压器漏抗值设计较一般电力变压器大,整流器换相时间延长。
Because leakage inductance value of rectiformer used in DC EAF is larger than common power transformer, the rectifier has longer commutation time.
送丝速度通过两个PI调节器进行双闭环控制,分别进行电枢电压反馈和电弧电压反馈。
Two PI adjustors were applied for wire feeding velocity control, one performed motor armature voltage feedback, the other one executed arc voltage feedback to determine the given velocity.
送丝速度通过两个PI调节器进行双闭环控制,分别进行电枢电压反馈和电弧电压反馈。
Two PI adjusters were applied for wire feeding velocity control, one performed motor armature voltage feedback, the other one executed arc voltage feedback to determine the given velocity.
介绍了微机控制变频电弧炉电极调节器的系统结构、工作原理及模糊控制算法。
In this paper, an electrode regulator for furnace of inverter controlled by a microcomputer system structure, its working principle and fuzzy algorithm are introduced.
分析了高压变频器在某炼钢厂电弧炉炼钢除尘风机中的应用。
The article analyzes the application of high voltage frequency converter on the arc furnace dust removal fan in some steel-smelting factory.
喷入电弧等离子体射流对等离子体反应器流场的影响区域是近轴区,对过渡区和近壁区没有影响。
The arc-plasma jet in jested into the reactor exerted influences on the flow field in the hear-axis zone, while no influences in the transition and the near-wall zones.
喷入电弧等离子体射流对等离子体反应器流场的影响区域是近轴区,对过渡区和近壁区没有影响。
The arc-plasma jet in jested into the reactor exerted influences on the flow field in the hear-axis zone, while no influences in the transition and the near-wall zones.
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