power factor measurement 中文意思是什麼

power factor measurement 解釋
功率因數測量
  • 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...
  • factor : n 1 〈英國〉經銷人；（代客買賣收取傭金的）經紀人；代理商；代辦人；〈蘇格蘭語〉 土地經管人。2 要素...
  • measurement : n. 1. 測量，計量，量度。2. 份量，尺寸，大小，寬度，厚度，深度（等）。3. 測量法。 measurement goods （按體積、容積計算的）體積貨物。
  1. The sa9904b, produced by sames company, is a three phase bi - directional energy / power chip and completes the measurement of rms voltage, rms current, powe, energy, power factor and frequency as the kernel of detecting unit

    本系統採用sames公司的三相雙向電能功率晶元sa9904b作為測量單元的核心來完成電壓、電流、功率、電能、功率因數和頻率的測量。
  2. Recommended practice for measurement of power factor tip - up of electric machinery stator coil insulation

    電動機械定子線圈絕緣的損失角增量測量的推薦實施規程
  3. Methods of power - factor - measurement for low - voltage inductive test circuits

    低壓感應測試電路功率因數的測量方法
  4. Guide for methods of power factor measurement for low - voltage inductive test circuits

    低壓電感試驗電路功率因數的測量方法指南
  5. Measuring and control ; electrical measuring instruments ; terminal markings for switchboard meters, panel meters and measuring transducers for the measurement of power and power factor

    測量和控制.電測量儀表.配電板儀表測量功率及功率
  6. As to the tunnels of jinping hydroelectric power station in sicuan province, the thesis discusses how to reasonably consider the initial stress field when designing a large - scale tunnel with high initial stress and deep buried. first, by analyzing of the rock lab tests and discusses the feature of regional geomorphology. explains the production of initial stress field, analyze the initial stress of jinping hydroelectric power station ; second, using the fem, the paper creates the real model of region. according to the results of stress measurement point, by combining of ann and fem to decide the boundary condition, the paper calculates the initial stress field ; at last, the paper analyzes the influence of the initial stress field formed from different condition on the deformation and stress of the surrounding rock, and the main factor to influence the initial stress. on the basis of the former work, the author proposes some proposals, which will be helpful for studying and designing of the similar undergroun d engineering

    首先從巖體的應力?變形的特性入手，並結合工程區域的地形地貌特徵，對巖體初始地應力場的形成做出解釋，結合錦屏水電站初始地應力的現狀提出了將地應力場進行分帶；然後建立整個工程區的實體模型，在地質分析的基礎上，以工程區右半部分為代表，參照實測點的初始地應力值，採用了神經網路與有限元相結合的方法反演了該區域的初始地應力場；最後模擬隧洞的開挖，通過計算比較分析了初始地應力場對處于不同應力帶內的隧洞圍巖穩定性的影響，在此基礎上提出了作者的建議，力圖為該類工程的研究設計工作提供有益的幫助。
  7. This strategy has many advantages : solving the problems that the system is unsteady under super - synchronization ; improving power factor of stator ( it is unity relative to that of rotor ) ; no rotor position sensor and no initial position measurement, easily building up doubly fed speed adjustment system with speed sensorless because adjusting speed is taken in the rotor coordinate and rotor current vector fixing is implemented

    該方案由於引入了定子電流勵磁分量的閉環控制，使系統同時具有轉速和勵磁調節兩個調節通道，具有如下優點：一、解決了超同步工作工況不穩定的問題；二、提高了定子側的功率因數（與轉子側功率因數為1相比） 。三、由於速度調節在轉子坐標系下進行，並以轉子電流矢量定向，所以無須轉子位置傳感器，也不用檢測初始位置，易於組成無速度傳感器雙饋調速系統。
  8. In order to satisfy the real - time measurement, we studied the fast arithmetic of virtual value of voltage and current, power factor

    為了滿足實時檢測要求，研究了計算電壓、電流有效值和功率因數的快速演算法。
  9. In order to get suitable algorithms which are accuracy, feasible, practical and convenient to be realized by virtual instrument, this paper firstly analyzes measuring algorithms of major power quality parameters, such as voltage, current, frequency, harmonics, flicker, unbalance factor etc. then two algorithms, the one for basic power quality parameters measurement based on spectrum correction and the other one for flicker measurement based on fft, are presented

    基於虛擬儀器技術的電能質量測試儀應用靈活，升級方便， 「軟體就是儀器」的特色使測試儀各種通用功能和預期功能的方便實現成為可能。文章對電能質量的一些主要指標:電壓、電流、頻率、諧波、電壓波動和閃變、三相電壓不平衡度等的測量演算法進行了分析，尋求適合虛擬儀器實現的，切實可行、計算精確、實用性強的計算方法。
  10. Measurement of relative permittivity, dielectric dissipation factor at power frequency and volume resistivity of insulating liquids

    液體絕緣材料工頻相對介電常數介質損耗因數和體積電阻率的測量
  11. The important study is the electric parameter measurement system which is achieved with sigma - delta a / d converter and dsp " sampling to three phrase voltage and current. its function includes the measurement of current, voltage, frequency, phrase, power, factor, active power and energy, reactive power and energy

    本文主要研究了用? a d轉換器和dsp處理器對工頻三相電壓、電流進行數字采樣，再用數字低通濾波器實現對三相電參數進行測量的測量系統。其主要功能包括對電流、電壓、頻率、相位、功率因數、有功功率、有功電能、無功功率、無功電能等測量，並具有測量數據并行輸出介面。
  12. Intelligent ac power factor instrument adopt advanced microprocessor carry out smart control, to the simultaneous input single phase or tri - phase ac voltage and current signal carry out accurate measurement, through cpu automatically count out ac power factor value, which is displayed clearly and visually by high brightness led digital tube, and can select serial communication function

    智能交流功率因數儀表採用先進的微處理器進行智能控制，對同s時輸入單相或三相交流電壓與電流信號進行精確測量，經過cpu自動計算出交流功率因數值，由高亮度led數碼管進行清晰直觀的顯示，並可選擇串列通訊功能。
  13. Adopt advanced microprocessor carry out smart control, to the simultaneous input single phase or tri - phase ac voltage and current signal carry out accurate measurement, through cpu automatically count out ac power factor value, which is displayed clearly and visually by high brightness led digital tube, and can select serial communication function

    採用先進的微處理器進行智能控制，對同時輸入單相或三相交流電壓與電流信號進行精確測量，經過cpu自動計算出交流功率因數值，由高亮度led數碼管進行清晰直觀的顯示，並可選擇串列通訊功能。
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