secondary switch 中文意思是什麼
secondary switch
解釋
次級接線器-
Invention of out - going secondary line switch, resulting in economy of inter - office trunks. first used at san francisco
發明外向第二級尋線機，提高了局間中繼的收益，並首次在舊金山使用。 -
Secondary protection shall be a pin expulsion type element complete with mechanically operated limit switch
我想應該是：二級保護是一個連同機械的可操控限極開關的安全針排氣類型的元件。 -
It emphases the selection of secondary voltage of the step - down transformer, the control and protection of thyristor, the calculation of compensation capability and group capability, the technique of cross - zero switched on / off capacitors or reactor, the solution of avoiding possible resonance in switching on / off groups of capacitors or reactor and the measure of the best time to switch ( including the design of the computer survey and control system, instrument deliver system, delay operate and protect system ). although thyristor as a no - contact switch can avoid almost the problem of contact switch with contact, it can not solve the over - voltage, over - current and transient process itself as switching on / off capacitors or reactor. so we must develop a set of thyristor - switched control and protect system with great reliability so that it can realize of cross - zero switching on / off capacitors or reactor at any time
晶閘管具有過零、動作快速的特點，本研究以晶閘管為電容器和電抗器的分組投切開關，重點研究了協調變壓器二次電壓的選擇、晶閘管觸發控制及保護、動態補償容量及分組容量的計算確定、過零投切電容器和電抗器技術的實現、以及分組投切電容器和電抗器可能發生諧振的處理計算方法，給出實現最佳補償投切選擇方法（測控系統、儀表變送系統、操作和保護系統的設計步驟） ，研製了一套高可靠性晶閘管觸發控制及保護系統，實現對無功的靜止可調補償。 -
If you switch roles between the primary server instance and a secondary server instance, you must drop all the database snapshots before you can set the primary database up as a secondary database
如果您在主服務器實例和輔助服務器實例之間切換角色，則在將主數據庫設置為輔助數據庫之前，必須先刪除所有數據庫快照。 -
As a result of employing multilevel phase - shifted method with zig zag connection in transformer secondary, in the primary the current harmonics their orders are lower than 6m 1 are eliminated ( m is the number of power cell each phase ). in the inverter side because of using pulse shifting pwm control, the equivalent switch frequency of output is m times as high as one h - bridge, so the output voltage waveform of the inverter is near sine with less harmonics
對于整流電路，由於採用變壓器移相多重化整流，在理論上可以實現曲折變壓器一次繞組中低於6m 1次諧波電流相互抵消（ m為串聯單元個數） ；對于逆變電路，由於採用移相pwm控制方式，等效開關頻率提高m倍，因此輸出電壓接近正弦波，諧波含量較小。 -
For the exists of false alarm and trying to release the system burden, and for the exist of what we call base - rate fallacy, we try to construct a security adaptation system for the primary ids. the primary ids decide the criticality of the network environment, and give the order on switch the detection policy to the secondary ids
由於誤報情況的存在和為了減少系統的負擔，以及稱之為基率佯繆問題的存在，針對于主ids ，本文構建了一個自適應入侵檢測方法，由主ids決定系統所處的網路環境的惡劣程度，並向從ids下達指令轉變相應的策略。
分享友人