quality of electric energy 中文意思是什麼
quality of electric energy
解釋
電力質量-
Quality of electric energy supply harmonics in public supply network
電能質量公用電網諧波 -
It can produce 1, 000, 000 sets of mechanical induction meter and 500, 000 sets of electric energy meter, 800, 000 sets of mutual inductance instrument and 1, 000, 000 sets of panel meter, 1, 500, 000 sets of electric breaker. quality guarantee contact us
為了使浙江華邦電力儀表有限公司的產品質量能得到充分的保證，我們歡迎用戶有關部門領導專家及工作人員光臨本公司參觀考察指導和技術培訓。 -
The mission of the conservation and production research laboratory is to 1 ) develop improved water management methods and irrigation technology for sustaining or enhancing crop productivity, improving water use efficiency, reducing ground water use, and enhancing water and soil quality ; 2 ) develop management practices that optimize the use of water, soil, climatic, and nutrient resources for economically and environmentally sustainable crop and livestock production systems under dryland and limited - irrigation conditions ; 3 ) develop systems for utilizing renewable energy sources ( wind, solar, and biofuels ) for pumping irrigation, livestock, and farmstead water and generating electric power ; 4 ) develop regimens that reduce environmental risks posed by accumulations of feedlot wastes by reducing the phosphorus content, improving nutrient utilization, and applying manure to grasslands
描述:美國農業部保持與生產研究實驗室的主要任務是： 1 .開發水資源管理方案或灌溉技術，提高用水效率，減少地下水使用，改善土壤和水質； 2 .使水資源、土壤資源、氣候和養分資源達到最優化，以保證在乾旱和灌溉條件有限的地區種植業和畜牧業能可持續發展； 3 .開發可再生能源用於灌溉、畜牧飼養和發電； 4 .通過減少磷成分，降低飼養場廢棄物的環境風險，將其施用於牧草地，提高養分利用率。 -
Analysis on power supply mode of electric traction system and the effects of traction load on the quality of electric energy
電力牽引系統供電方式及其負荷對電能質量影響的分析研究 -
During it consumes electric power, feeds back a great amount of high order harmonic to energy supply system and jeopardizes the electric power quality
電氣機車為單相整流負荷，它在消耗電能的同時向牽引供電系統注入了大量的高次諧波。 -
This paper describes mainly system functions, measuring methods, circuit design, software program and errors analysis of a new type of measuring instrument. this instrument can measure and monitor electric parameters in single - phase circuits, three - phase ( three - wire or four - wire ) circuits. this system can be applied to electric devices and power plants, transformer substations with harmonic pollution. it can measure current, voltage, power, energy, frequence, power factor etc. it also can detect load quality, phase sequence, alarm, display and print results, as well as detect and dispose negative power
該儀器適用於含有諧波污染情況下的機電設備現場、發電廠、供電局、企業變電所現場，可用來測量電流、電壓、有功功率、無功功率、視在功率、有功電能、無功電能、視在電能以及頻率和功率因數等電參數，並具有負載性質（感性、容性）判別，正、逆相序判別指示功能；超限報警功能；列印記錄功能和負功檢測及處理功能。 -
Energy conservation and and reformation of power plants " heat installation affect a lot on the efficient performance of opertion of power plant. pump and fan take a large proportion in power plant and resume much electric energy. so there is much energy conservation pationlity in them. and we should have strong tools and theories " support to reform them. we can combine the theory modeling and engineering design manufacture by the bussiness software such as fluent. in order to take full advantage of the powerful function of fluent and increase absolutely its conveniece and interaction, we should develop fluent secondly. this paper puts the idea firstly demostricly to substitute the performance test of pump and fan to get the integrative system of the optimization and computer aid design, and so we can increase greatly of the efficiecy and quality of the facility reformation. the main idea about the secondary development of fluent in this paper is based on the secondary development of gambit, the modeling and meshing s oftware of fluent, and simplify the modeling and meshing of gambit. meanwile, the data management base on web browser kind is adopted for the convenience of optimization and parameterization, and the journal files createdly recently can get new medeling and meshing files that can be used by fluent. so the designer can focus on the computer scheme and the result analysis without care the fussy designing and optimiziation. so we can increase greatly the optimization efficiency
泵與風機在電廠中占較大數量比例，且消耗大量電能，節能潛力巨大，對其改造需要強有力的工具和理論支持，用商用cfd軟體如fluent可實現泵與風機改造中的理論模擬與工程設計製造間的結合。為了充分發揮fluent的強大功能，又能最大程度地提高其方便性與交戶性，應對其進行二次開發。本課題在國內首先提出對fluent進行二次開發，替代泵與風機性能試驗，形成一體化的優化、輔助製造系統，可大大提高設備改造的效率與質量，其主要思想是基於fluent的cad構體軟體gambit進行二次開發，簡化了泵的構體過程，同時，為了優化及參數化方便，採用基於webbrowser的數據管理方式，生成新的記錄文件同時產生新的fluent計算能識別的圖形網格文件，這樣就將設計優化者從繁瑣的圖形設計及優化中解脫出來，專注于對計算方案的確定及計算結果的分析，極大地提高了設計優化的效率。 -
Study of harmonics measurement in panel mounted electric energy meter can provide the necessary basis for improving the contradictions of electric energy metering and establishing the policy of power quality governance
研究在安裝式電能表中實現諧波的分析和計量，可以為改善電能計費矛盾、制定有關電能質量治理的政策提供必要依據。 -
In addition, it is neccesary to deeply carry out foundational study for the following subjects : the control technique of distributed power generation ; the power market mechanism suitable for fussion of the distributed power generation, and corresponding political regulations ; management of electric energy quality, and stratagy of operation and control for the combined power system ; planning of the combined power system, and scheme of putting units into operation ; pricing of the power marker, and distributing scheme of network loss etc
另外，對于分散式發電控制技術，適應融合分散式發電的電力市場機制和相應政策法規，聯合電力系統的電能質量管理、運行和控制策略，聯合電力系統規劃、機組投運方案，電力市場定價以及網損分配方案等需要進行深入的基礎研究，並結合實際國情制訂相應的標準。 -
With the demand for high quality of electric energy is increasing ， as the most immediate part to the consumer ， distribution network ’ s efficient and reliable operation is very important as the result ， new distribution automation equipment with high performance is inevitable prime machine system ， as data collection and processing subsystem of dms ， provides communication of kinds of information between control center and rtus it ’ s reliability ， real ? time abilitv and stability affect the scada system directly to solve the disadvantage of the existing system ， whose channels are dependent ， a new proj ect of single board system is brought forward and its hardware and software are designed with high performance chip of communication ， independence of channels is realized basic function of system is realized ， and faster reposition and expansibility of the single chip is fully applied
配電自動化通信前置機作為dms主站系統的數據採集與處理子系統，提供監控中心與遠方rtu之間各種可能信息的交換功能，其可靠性，實時性和穩定性直接影響scada系統的運行質量。本課題針對現有前置機各通信通道之間不相互獨立、穩定性低的固有問題，提出一種新式單板前置機系統，並對其進行了軟硬體設計，選用高性能專用通信處理晶元，實現各通道獨立，並在實現前置機基本功能的基礎上，充分發揮單片機相對于工控機的快速復位功能以及更好的可擴展性，實現了一個可靠、穩定、靈活的前置機系統。 -
In the actuation, the feeling measure and the balance compensation, the gyroscope used the electric capacity with the high sensitivity, the low energy consumption, and combined with the high quality factor characteristic of the resonance main body, which enable its system to have the quite outstanding performance : the vibration gyroscopes were generally used to measure the rotation rate, but because of axial symmetry factor, the axial symmetry vibrating - shell gyroscope can be used to measure not only the rotation rate but also the rotation angle, moreover do not bring the accumulation error as a result of the integral
該陀螺在驅動、感測與平衡補償上採用具有高靈敏度、低能量消耗的電容，並結合諧振體高品質的特性，有相當優異的表現:振動式陀螺儀一般都是用來感測轉速，而軸對稱殼式陀螺儀由於軸對稱的因素，不僅可以用來感測轉速，而且可以感測物體的轉角，並且避免了由於積分而帶來的積累誤差。 -
With the development of energy industry, the application of electrical equipments, such as electric motors, large capacity transformers, high voltage switches etc, are more and more used in many industrial fields. therefore, it is essential for electrical manufacturers to design their products more precise, to meet the requirements of electrical products with higher quality and higher performance in modern society
隨著能源工業的發展，電機、大型電力變壓器、高壓開關等電氣裝備的應用越來越多，對它們的性能、質量及製造精度的要求也越來越高，這就要求電氣裝備製造廠家必須對電氣產品進行精確的設計，以滿足現代社會對電氣產品高質量、高性能的要求。 -
The quality of the air in the department s offices was graded as " good class ". energy saving various measures to conserve energy were taken during the year, including arranging the last - man - out after office hours to switch off electric facilities, identifying and replacing defective equipment, and turning off lights in storage areas and other electric appliances after use
年內，本局已實行多項措施以節約能源，如安排在辦公時間以後由最後離開辦公室的員工檢查並關掉所有電器檢查並更換操作不良的設備，以及把貯物室電燈和其他電器在使用后關掉。 -
Quality of electric energy supply. admissible three - phase voltage unbalance factor
電能質量三相電壓允許不平衡度 -
Consumers successively plunged a large number of silicon controlled commuted devices ( such as steel rolling 、 electrized locomotive 、 aluminium electrolysed devices etc ) and smelting devices to improve their produced efficiency or to save energy. on the one hand it is good for consumers, on the other hand it will arouse the fluctuation of voltage and frequency and it will result in the collision of the active and reactance capacity. meanwhile these nonlinear loads bring much harmonic into the electric network which deteriorate the quality of power supply and hazard the online device enormously
用電部門為了提高生產效益、節約能源，在大電網中相繼出現了大量的可控硅整流裝置（如軋鋼、電氣化機車、鋁加工電解設備等）以及冶煉設備，這些設備的投入使用對節能有一定好處，但給電網造成有、無功沖擊，引起電壓和頻率的波動，同時，這些非線性負荷向電網注入大量諧波，大大惡化了供電系統的電能質量，給用電設備帶來了極大的危害。 -
Electric energy is a kind of basic power in the world. power quality problems are widely attentive by customs
電能作為各行各業的基本動力能源，其質量問題受到廣泛的重視。 -
Quality of electric energy supply. permissible deviation of frequency for power system
電能質量電力系統頻率允許偏差 -
Hydroturbine governor is one of the important controlling devices in the hydro power plant, and its performance exerts important influence on the quality of electric energy and the operational reliablity of the hydro power plant. lt is an active subject to research some technology and selection for hydroturbine governor
水輪機調速器是水電廠的重要控制設備，其性能的好壞直接影響著電能品質和水電廠的安全經濟運行，對水輪機調速器的若干技術及選型進行研究，具有十分重要的現實意義。 -
It governs the speed, the operating mode and power output of hydraulic turbine. its performance exerts important influence on the quality of electric energy and operational reliability of the hydro power plants
它調節發電機頻率、運行方式以及水輪機功率的輸出，其性能的好壞直接影響著電能品質和水電站的安全運行。
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