美国国家仪器有限公司关注排行
产品描述：
● Measure power quality and energy features to IEC, EN, and IEEE standards
● Harmonics (IEC 61000-4-7) and Flicker (IEC 61000-4-15)
● Phasor measurement unit (C37.118) [Professional Edition Only]
● Sag/swell/interruption with standard or custom levels (IEC 61000-4-30)
● Rapid voltage change with standard or custom levels (IEC 61000-4-30)
● Compatibility with the COMTRADE (IEEE 37.111) file format
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