2 . the pre - flashover phenomena of alumina insulators in vacuum have been investigated . according to the experimental results , a reversed pre - flashover current was observed repetitively , which often occurs at the tail of pulse voltage close to zero ( sometimes after the applied pulse voltage ) 首次发现了大量的、重复性的反向预闪络现象,即在冲击电压波尾附近电压幅值已经接近零、甚至在冲击电压作用完后(已没有电压)的情况下仍然存在试样表面发光现象,同时伴有反向的电流脉冲。
电压: voltage; electric tension; e ...波: wave电压波动: voltage fluctuations; voltage functuation; voltage pulsation; voltage ripple电压波动量: magnitude of a voltage fluctuation电压波腹: potential loop; voltage loop电压波节: voltage node电压波形: voltage waveform电压波形图: voltage oscillogram扫描电压波: sweevoltage wave电压波动波形: voltage fluctuation waveform电压波动范围: scope range of the fluctuation of voltage电压波动幅度: magnitude of a voltage fluctation电压波动特性: voltage fluctuation characteristic电压波动振幅: voltage fluctuation amplitude电源电压波动: mains voltage fluctuation; power supply voltage fluctuation控制电压波形: control waveform; wave form线性电压波形: linear voltage wave form最大电压波动: peak-to peak fluctuation电压波动和闪变: power quality voltage fluctuation and flicker极慢扫描电压波: very slow sweep voltage wave最大容许电压波动: maximum permitted voltage pulsation操作过电压;开关时电压波动: switching surge压波: compressional waves; wave of compression标准操作冲击电压波: standard switching voltage impulse闪烁,闪光,晃动,电压波形畸变: flicker