什么是 Crest Factor
峰值因数是指电流或电压信号的峰值与均方根值之间的比率。它是一种测量仪器规格,用于描述波形或信号动态范围的大小。峰值因数用来表示输入信号的质量,也可以用来衡量峰值与均方根值的比值。
在照明行业中,不同类型的负载表现出不同的电流波形,波峰因数也各不相同。加热器和白炽灯等电阻负载的电流波形接近正弦,波峰因数接近 1.4。功率因数校正负载,如电子照明镇流器和计算机电源,波峰因数通常在 1.4 至 1.5 之间。电池充电器和 VSD 电机控制器等非线性负载的波峰因数可达 2.0 至 3.0,甚至更高。
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"(《世界人权宣言》) 波峰因數 在测量具有高电流波峰因数的单个负载时,这一点变得尤为重要。如果峰值电流超过测量仪器(如电流互感器 (CT))的容量,读数就会变得不准确。因此,选择额定电流能够承受预期峰值电流的 CT 至关重要。


















