chart comparator 中文意思是什麼
chart comparator
解釋
海圖比較器- chart : n 1 海圖，航（線）圖，航海圖；地勢圖（＝physical chart），（軍用）地形圖（＝topographic chart）。...
- comparator : n. 【機械工程】比測器，比較儀，比長儀；【化學】比色計；比…器；【無線電】比較器；比較電路。
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Applying relative arithmetic to all kinds of faults and calculating off - line, we can master time - distance relation chart for all kinds of faults. computation indicates : when transmission lines occur faults, the data window of protection algorithm consisting of prefault and postfault data at the same time has important significance. the following methods are useful to achieve the inverse time characteristic : calculating impedance by using flourier in a full cycle, calculating work voltage by using fault component, calculating the torque created by a phase comparator or a magnitude comparator
實際的計算表明：輸電線路發生故障后，用故障前後的數據同時充滿保護演算法的數據窗，對于快速切除近區故障具有很重要的意義；同時利用故障前後的數據，下述方法可以比較好地實現距離保護的反時限特性：直接用全周傅里葉演算法進行阻抗計算；採用工頻變化量阻抗繼電器進行工作電壓的計算；採用轉矩的思想進行轉矩的計算。
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