超高頻保護 的英文怎麼說

中文拼音 [chāogāobīnbǎohù]
超高頻保護 英文
ultra-high frequency protection
  • 超 : Ⅰ動詞1 （越過; 高出） exceed; surpass; overtake 2 （在某個范圍以外; 不受限制） transcend; go beyo...
  • 高 : Ⅰ形容詞1 （從下向上距離大; 離地面遠） tall; high 2 （在一般標準或平均程度之上; 等級在上的） above...
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 保 : Ⅰ動詞1 （保衛; 保護） defend; protect 2 （保持） keep; preserve; maintain in good condition 3 （...
  • 護 : 動詞1. （保護; 保衛） protect; guard; shield 2. （袒護;包庇） be partial to; shield from censure
  • 高頻 : high frequency
  1. What is an active protection, elementary : mike or receiver of the signal - an amplifier, 1 transistor - a capacitor with changeable resistor - an output on speaker or emitter

    頻率范圍超過100千兆赫，採用材料反射體屏蔽，具有高介電常數，導磁性，水或鎂7分水作為遮蓋金字塔，填充物- - -一個吸收器- - -石墨，碳。也可以建造積極保護方式電容器。
  2. In year 2005, our new main plant was built in jiading district, shanghai. hugong valve factory has also recently employed 556 people, including 158 technical engineers and 3 senior engineers. we also have more than 10 workshops for precise casting, hot forging and stamping, welding, heat treatment, finishing, machining and assembly

    下設精密鑄造熱鍛壓焊接熱處理精加工裝配等十多個車間擁有數控加工中心等離子焊接機全自動氣體保護焊半自動真空熔焊機超頻真空熱處理車球專用數控車床高效加工專機理化和探傷設備等各類加工檢測設備300多臺套。
  3. The recursive criterion of transient current protection based on mallat wavelet transform is presented in order to meet the real - time demands. the reserch shows deficiency existed in the prevenient principle of transient current protection, so a new improved scheme of transient current protection is proposed. the characteristics of transient protection at different bus distribution capacitance is also analysed in this thesis. the study shows that operate of transient protection is correct when the bus distribution capacitance change. other conclusion include : the trip of transient protection must be locked when the power circuit breaker of transimission line operated, because the trip is incorrect at this time ; the features of transient current and it ' s energy is different between the fault and thunder over - voltage in transimission line, and them can be identified ; the ratio of high frequency component of current in serise capaciters compensation line, svc and hvdc system is far little than fault transient current, so all of them do not affect the working of trasient current protection

    應用功率譜估計方法討論了故障高頻暫態噪聲信號在頻率軸上的分佈情況，利用功率譜分析結果實現的非參數化系統辨識方法研究了母線分佈電容對電流高頻暫態信號的衰減特性。論文的後半部分（第五，六，七章）著重分析了現有基於故障電流的暫態保護原理和判據存在的問題，提出了新的實現方案，並討論了暫態電流保護的運行性能。利用多分辨分析和小波分解快速演算法構成的遞推暫態保護判據，可以準確區分故障線路和非故障線路，實現超高速暫態電流保護，計算更為簡單方便，計算速度更快。
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