directional power protection 中文意思是什麼
directional power protection
解釋
方向功率保護裝置- directional : adj. 1. 方向的。2. 【無線電】指向的，定向的。
- power : n 1 力，力量；能力；體力，精力；（生理）機能；〈常 pl 〉才能。2 勢力，權力，權限；威力；政權；權...
- protection : n 1 保護，保衛，防禦，掩護，包庇，照顧 （from; against）。2 保護者，防護物 （against）; 〈美俚〉...
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Abstract : there are only two set values ( 30, 45 ) for interior angle of the stimulated directional power relay as the protection in phase to phase short circuit fault. an accurate setting formula for interior angle of the microprocessor - based directional power relay as the protection in phase to phase short - circuit fault is proposed and analyzed, users can set as a calculation value or at least an optimum in the formula. therefore the operation sensitivity and reliability of the directional relay would be improved greatly. the opinion is new and practical
文摘:保護相間短路的模擬式功率方向繼電器內角的整定值只有兩個（ 30 、 45 ） ，用戶只能在這兩個值中選其一；分析並提出了保護相間短路的微機型功率方向繼電器內角的準確整定計算公式，用戶可以整定為該公式的計算值或至少為最合理的值，從而能顯著提高方向繼電器的動作靈敏度及可靠性，具有新見解及應用價值。 -
Abstract : zero sequence directional power protection is widely used in neutral directly grounded system
文摘:在大電流接地系統中廣泛採用著零序功率方向保護。 -
The adaptive protective relays categorically sets up the math model and realized theory of adaptive relay protective settings calculation. the calculation of complex faults solves the computation of all kinds of faults involved in power network. the coordination of directional protective relays in multiloop networks solves the calculation of break points set and the coordination of main protection with backup protection
其中自適應定值計算和管理問題分類建立不同元件（線路）自適應繼電保護定值計算的數學模型及其實現的理論；復故障計算問題解決了計算電網中各種故障（包括短路、斷線）的計算問題;復雜環網的保護配合問題解決了大規模復雜環網斷點的求取以及主/后備保護整定配合的問題。 -
Based on the writer ' s research and development, chapter 3 discusses the analysis, design and development of some important sets in mps4000 sias which are set for switching on the power, set for multi - function measurement protective and set for directional protection. digital filter and subsection revise technology are discussed in this chapter too
第三章結合筆者的研發實踐，論述了變電站綜合自動化系統中自動準同期裝置、方向保護裝置和多功能測量裝置的分析、設計和開發，同時詳細分析了在研發過程中對數字濾波技術、分段校正技術等工程技術的應用。
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