According to features of power quality disturbance signal, this paper detects the disturbance signals of high-frequency, transient impulse and voltage notch with wavelet transforming.
针对电能质量扰动信号的特性，本文采用小波变换对电力系统的高频、瞬时脉冲、电压切痕扰动信号进行检测。
The discharging curves for power frequency voltage and lightning impulse voltage are measured and its fluctuation range caused by variation of air condition is found.
该式能把工频电压和雷电冲击电压下空气隙的放电曲线箍在特定的范围内。
The discharging properties of air gap in natural ambience with different conditions under power frequency voltage and lightning impulse voltage are studied.
通过对该避雷器进行大量的雷电冲击放电试验，确定了间隙距离和安装位置。
Widely used in all kinds of direct current, impulse, AC voltage decreasing and high frequency occasions, especially suitable for all kinds of power-saving lights and electronic ballasts.
广泛用于各种直流电，脉冲，交流降压，高频较大的电流场合，特别适用于各种频型的节能灯和电子镇流器。
Widely used in all kinds of direct current, impulse, AC voltage decreasing and high frequency occasions, especially suitable for all kinds of power-saving lights and electronic ballasts.
广泛用于各种直流电，脉冲，交流降压，高频较大的电流场合，特别适用于各种频型的节能灯和电子镇流器。
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