由于一般用电设备对电压波动的敏感度远低于白炽灯,为此,选择人对白炽灯照度波动的主观视感,即“闪变”,作为衡量电压波动危害程度的评价指标。闪变的主要决定因素有:①供电电压波动的幅值、频度和波形;②照明装置,以对白炽灯的照度波动影响最大,而且与白炽灯的瓦数和额定电压等有关;③人对闪变的主观视感等。研究表明,人眼对电压波动频率8.8Hz 左右最为敏感。
adj. flickering
This paper infers a new method for the parameter extracting of voltage flicker.
本方法为电压闪变参数提取提供了一种新思路。
参考来源 - 电力系统信号参数提取的TLSAbstractFive items, with frequency, harmonics, voltage deviation and voltage fluctuation and flicker respectively, are included in the state standards of energy quality.
我国电能质量国家标准主要规定了五个指标—频率、谐波、电压偏差、电压三相不平衡及电压波动与闪变。
参考来源 - 电能质量监测系统厂站装置的研究·2,447,543篇论文数据,部分数据来源于NoteExpress
我经常发觉,单独使用闪变模式效果不佳,但这种方法对我却起了很大作用。
I usually find the swish pattern alone to be weak and ineffective, but this method works very well for me.
它涵盖五个方面:供电电压允许偏差、公用电网谐波、三相电压不平衡度、电力系统频率允许偏差、电压允许波动和闪变。
It covers five aspects: supply voltage tolerance, utility harmonic, three-phase voltage unbalance, power system frequency tolerance, voltage fluctuation and flicker.
对这些轻型金属外观元素的重复使用和仔细排布创造了一种持续的光影闪变效果,给予这栋四周围有树木的建筑柔和的外观。
The repetition and careful arrangement of these lightweight facade elements produces a constant play of light and shadow, giving the building a soft appearance among the surrounding trees.
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