【正文】 間間隔上的測量集合 Basic measurement time interval is 基本的測量時(shí)間間隔為 – 10cycles for 50 Hz systems 對 50 Hz 的系統(tǒng)為 10個(gè)周期 – 12cycles for 60 Hz systems 對 60 Hz的系統(tǒng)為 12個(gè)周期 Measurement time intervals are aggregated over 3 different time intervals: 測量時(shí)間間隔由 3個(gè)不同的時(shí)間間隔組成： – 3s interval (150 cycles for 50 Hz nominal or 180 cycles for 60 Hz nominal), 3s間隔（對于標(biāo)稱為 50 Hz的電壓為 150個(gè)周期，對于標(biāo)稱為 60 Hz的電壓為 180個(gè)周期） – 10min interval, 10min間隔 – 2h interval. 2h間隔 Many measurements like rms voltage and harmonics are simply averaged. Others, like, flicker, aren’t quite so simple. 許多測量參數(shù)－如 rms電壓和諧波－是經(jīng)過簡單平均得到的。 IEC 61000 The uses 10 minute aggregation for voltage, harmonics, flicker checking in System Monitor Mode. Plt is a 2hour measurement. Fluke 430 使用 10分鐘間隔在系統(tǒng)監(jiān)控模式下進(jìn)行電壓、諧波和閃變檢查。 Luis Introduction to 3 Phase Power Company Confidential 22 IEC61000430 “Flagging” IEC61000430“標(biāo)記” During dip, swell, or interruption, other parameters may be unreliable? 在驟降、驟升或斷電期間，其它參數(shù)是不是可能不可靠？ Flagging concept avoids counting a single event more than once 通過標(biāo)記，避免了重復(fù)計(jì)算某一信號事件 Flagging is only triggered by dips, swells, and interruptions. 標(biāo)記僅由驟降、驟升和斷電事件觸發(fā) Applicable for measurement of power frequency, voltage magnitude, flicker, supply voltage unbalance, voltage harmonics, voltage interharmonics. 適用于頻率、電壓幅度、閃變、電源電壓失衡、電壓諧波、電壓諧間波的測量 A flagged value is indicated on the Fluke 430 by a small flag in the upper right of the display. 被標(biāo)志的值由 Fluke 430 顯示屏右上角的標(biāo)志表示。 4個(gè)電流輸入，可以測量三個(gè)相電流和零線電流?？梢阅玫饺魏蔚胤竭M(jìn)行測量。 ? Select from Industry Standard color coding or Choose your own. Lets you easily correlate connections and readings 可以選擇工業(yè)標(biāo)準(zhǔn)的色標(biāo)，或自己選擇顏色。 Luis Introduction to 3 Phase Power Company Confidential 26 Get Answers – Fast! 答案就是：快！ ? Fastupdate, highresolution scope display shows voltage and current waveforms for all three phases and neutral. 快速刷新、高分辨率的示波器顯示全部三個(gè)相信號和零線信號的電壓和電流波形。 Luis Introduction to 3 Phase Power Company Confidential 27 All Basic Measurements 全部的基本測量 ? RMS and peak voltage, RMS and peak current, crest factor for all phases and neutral RMS和峰值電壓、 RMS和峰值電流、所有相信號和零線信號的波峰因數(shù) ? Frequency 頻率 ? Watts, VA, VAR’s 瓦特、伏安、乏 ? Power Factor and displacement power factor 功率因數(shù)和位移功率因數(shù) Luis Introduction to 3 Phase Power Company Confidential 28 Auto Trending 自動趨勢繪圖 ?Automatic trending starts in the background when you select VAHz, Power, or Harmonics. 當(dāng)選擇了 VAHz、功率或諧波功能時(shí)，則在后臺啟動自動趨勢繪圖功能 ?Switch between numeric readings and trends without losing data. 在數(shù)字讀數(shù)和趨勢繪圖之間進(jìn)行切換，而不會丟失數(shù)據(jù) ? The Fluke 430 records every reading you see on the tables Fluke 430 記錄在表中顯示的所有讀數(shù) Luis Introduction to 3 Phase Power Company Confidential 29 Detailed Dips (Sags) amp。 EN50160 specifies limits for how often voltage events can occur. The Fluke 430 allows you to determine at a glance how often voltage is within useradjustable tolerances. Drill down to see detailed trends behind the summary. Store up to 4 custom limit templates in the instrument EN50160 標(biāo)準(zhǔn)規(guī)定了電壓事件可以發(fā)生的頻率。在初步了解的基礎(chǔ)上，仔細(xì)觀察詳細(xì)的趨勢。