阻力閘 的英文怎麼說
中文拼音 [zǔlìzhá]
阻力閘
英文
drag brake-
Unified power flow controller ( upfc ) is one of the most powerful and most promising controllers of facts. if we use upfc to control the transmission parameters, terminal voltage, line impedance and phase angle in normal situation and use it to compensate zero sequence and negative sequence currents when one of transmission lines is cut off, we can implement two phases operating in high voltage transmission lines, which can improve stability and reliability for the transmission system
統一潮流控制器（ upfc ）是功能最強、最具發展潛力的靈活交流輸電系統（ facts ）控制器之一，如果在常規條件下，用upfc實現輸電線路的電壓調節、移相、潮流控制、阻尼振蕩等功能，在發生單相永久性接地或單相斷路故障時，由傳統的三相跳閘改為單相跳閘，用upfc的並補來濾除兩端系統的零序和負序電流，用upfc的串補來提高輸電線的傳輸功率，以實現兩相長期運行，那麼輸電系統的穩定性、可靠性將大大提高。All kinds of resisting moment effects upon pump start - up process are fully considered and the different operational results of outlet gate with little flap valve are also reviewed
在計算過程中，比較完整地考慮了各種阻力矩對起動過程的影響，同時重點考察了平直管出水流道，具有快速閘門帶小拍門斷流裝置形式的起動效果。Gzx inductive resistance current limiter is applied to ac power system with rated voltages of 6kv 10kv 35kv 50hz and series connected with shunt capacitor for limiting the surge current of shunt capacitor bank and eliminating the affection of capacitor discharging current during short circuit
電感電阻型限流器用於交流50hz ，標稱電壓為6kv 10kv 35kv電力系統中，與電容器相申聯，以達到限制並聯電容器組的合閘涌流，及消除電力系統短路時電容器放電電流的助增影響。When this fault is cutted off and the breaker is reclosed, this scheme ca n ' t start by mistake. the availability of this scheme is proved with matlab test. the single phase high - impedance grounding fault is settled properly
Matlab模擬分析證明了該方案耐受過渡電阻的能力強，在故障切除和重合閘時不會因出現的暫態信號而誤啟動，不受系統振蕩、頻率偏差的影響，克服了常規保護靈敏度不足的缺點，較好地解決了單相高阻接地故障的難題。A flap vlave used in pumping station is a kind of hydraulic - operated automatic gate, which is similar to a hinged check vaive. because of their simple structure and reliability, being able to shorten the length of outlet passage and facilitate the starting of pumping system in comparison with siphonic vacuum - distroied cutoff scheme. so it is propitious to be used and save investment but at the same time, flap valves always show some disadvantage
因拍門簡單、可靠，與虹吸真空破壞截流閉鎖方式相比，可以縮短出水管道（流道）長度，並利於泵系統起動，與快速閘門相比，拍門也有諸多優點，閘門門體易關閉不到位或卡住不能活動，因為門槽和?塊較軸孔容易殘留異物，閘門門體克服滑動阻力不僅無機械增益，且阻力和動力不在一直線上，門體易傾斜而自鎖，而拍門的工作可靠性則遠高於快速閘門。Measuring water by three different ways that are pressure sensor, resistance transducer, intellective rotary encoder. 2
採用壓力液位傳感器、電阻傳感器、智能旋轉式編碼器等三種不同的測量方式對水位、閘位進行測量。For fire grounding, grounded impedance varies greatly because of air dissociation, and this causes protection set to startup and resume again and again. therefore, the main protection of the fault line ca n ' t cut off the fault quickly and accurately, and may lead to overstep tripping of near lines " protection sets and eventually cause more serious faults on the power system
同時故障電流一般比較小，電流突變也很小，有時呈緩慢上升的變化趨勢，對火焰接地來說，由於空氣游離的緣故，接地阻抗變化很大，使現有保護反反復復啟動、恢復，可能會導致相鄰線路、設備的保護越級跳閘，使電力系統出現更嚴重的故障。分享友人