This paper presents hardware and software design processes on control system of the soft-switching arc welding inverter power source.
给出了软开关弧焊逆变电源控制系统的硬件系统设计和软件系统设计。
It's difficult to find contact from the image photographed by high-speed image sampling system because of the light reflection characteristics of switching arc, contact and interrupter.
由于开关电弧的发光特性和电器触头系统及灭弧室的反光特性，使从高速图像采集系统拍摄到的图像中很难观察到电器触头。
After switching on powerful arc lights.
他们打开强力弧光灯。
The transition function of soft switching inverter arc power is developed. The control circuit of outer character of the power is designed as well. And an ideal outer character is obtained.
建立了软开关逆变弧焊电源的传递函数，设计了电源外特性控制电路，得到了较理想的电源外特性。
The disjunction electric arc testing method for the switching electric appliance contact and the device thereof comprise relay electric arc testing and simulated electric arc testing.
本发明一种开关电器触头分断电弧试验方法及其装置，包括继电器电弧试验和模拟电弧试验。
Practice shows that the design reduces the switching stress and loss, improves the reliability of the whole machine and reduces the cost of the arc welding power.
在实践中采用本方案表明，降低了开关应力及损耗，提高了整机可靠性，降低了弧焊电源的成本。
The invention also discloses a hybrid switching method for extinguishing arc of the mechanical switch.
还公开了一种为机械开关灭弧的开关混合切换方法。
The transition function of soft switching inverter arc power is developed. The control circuit of outer character of the power is designed as well.
建立了软开关逆变弧焊电源的传递函数，设计了电源外特性控制电路，得到了较理想的电源外特性。
The resonant soft switching inverter arc welding power source uses LCL type structure in the main circuit, and selects phase shifting pulse wide modulation technique in the control system.
研制的谐振式软开关弧焊逆变电源，主电路采用新型LCL结构，控制系统选用恒频移相调脉宽控制方案。
It is approved that the novel high frequency power transformer can be applied on 50kva soft-switching submerged arc welding inverter successfully.
实践表明，该新型结构的功率变压器可以成功的在50kva软开关埋弧焊逆变器中应用。
This paper studies and analyses mathematically the typical main circuits of the new generation of arc welding inverters using IGBT, MOSFET as power semiconductor switching devices.
对新一代弧焊逆变器各种典型的主电路进行了较深入的数学分析和研究。
System capacitive current testing can guide arc-extinguish coil correct switching.
通过测试系统电容电流，可以指导消弧线圈的正确投切。
Soft switching is the key technology to improve the reliability of inverter arc welding power.
软开关技术是解决逆变弧焊电源可靠性的核心技术。
Its structure is very complex, particularly the wall of new turbine disk is thin, physical dimension mostly is arc switching. There are many dented surfaces and they need high roughness demanding.
它的结构复杂，尤其是新型的涡轮盘壁薄、结构尺寸多为圆弧转接，存在多处凹陷的内表面，并且表面粗糙度要求高。
After switching on powerful arc lights, they saw great stalagmites — some of them over forty feet high — rising up like tree-trunks to meet the stalactites suspended from the roof.
他们打开强力弧光灯，看见一株株巨大的石笋，有的高达40英尺，象树干似的向上长着，与洞顶悬挂下来的钟乳石相接。
Paper covers temporary overvoltages, second arc current, switching overvoltage, major parameters of MOA and insulation level of UHV AC apparatus.
主要内容包括：工频暂时过电压，潜供电流，操作过电压，金属氧化物避雷器主要参数，特高压电气设备的绝缘水平等。
After switching on powerful arc lights, they saw great stalagmites.
他们打开强力弧光灯，看见一株株巨大的石笋。
After switching on powerful arc lights, they saw great stalagmites.
他们打开强力弧光灯，看见一株株巨大的石笋。
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