功率因数功率因数是电路中有功功率(w)视在功率(VA)间夹角的余弦值。
Power factor power factor is the cosine of the Angle between the active power (kW) and apparent power (kVA) in a circuit.
电力系统中常需测量电压、电流、功率因数、有功功率、无功功率和视在功率等参数。
In an electric power system, the following parameters often need measuring: voltage, current, power factor, power, reactive power and apparent power.
基于ADE7758开发的功能更完善的电能计量校验仪还能实现无功功率、视在功率和频率的测量。
The enganced one based on ADE7758 can measure reactive power, visual power and frequency yet.
本文提出的非正弦网络功率的分析方法是将视在功率分解成四个分量：有功功率、分散功率、无功功率、外加视在功率。
An analytic method of power in nonsinusoidal networks is suggested for the apparent power decomposition into four components, active power, scattered power, reactive power, and forced apparent power.
首先运用对称分量法将单相异步电动机分为正序系统和负序系统，然后分别用矩阵分析了这两个系统中各自的有功功率、无功功率和视在功率。
Using the method of symmetric components and matrix, this paper analyses instantaneous power and the operation parameters concerning one-phase asynchronous motor in dynamic state.
首先运用对称分量法将单相异步电动机分为正序系统和负序系统，然后分别用矩阵分析了这两个系统中各自的有功功率、无功功率和视在功率。
Using the method of symmetric components and matrix, this paper analyses instantaneous power and the operation parameters concerning one-phase asynchronous motor in dynamic state.
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