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Chapter 7

AC Steady State Power

Мгновенное питание
Мгновенное питание
For a circuit with a sinusoidal input, the power delivered to a passive element equals the product of the voltage and current across it. Expressing ...
Средняя мощность
Средняя мощность
For most practical applications, the time-varying instantaneous power is not a commonly used quantity. Instead, the average power is used as the ...
Эффективное значение формы периодического сигнала
Эффективное значение формы периодического сигнала
Consider an AC circuit with a periodic voltage source connected to a resistor. The average power delivered to the resistor equals the integral of the ...
Комплексная мощность
Комплексная мощность
Consider a load connected to an AC source. The voltage and currents across this load can be represented in the frequency domain. The complex power is ...
Энергосбережение переменного тока
Энергосбережение переменного тока
The principle of AC power conservation states that the complex, real, and reactive powers generated by the source are equivalent to the total complex, ...
Коэффициент мощности
Коэффициент мощности
The power factor is the ratio of the active power to the apparent power. It is determined by the phase difference between the voltage and current, which ...
Коррекция коэффициента мощности
Коррекция коэффициента мощности
The power transmission to a factory involves the transfer of both active and reactive power. The ratio of active to total power defines the power factor. ...
Принцип суперпозиции мощности
Принцип суперпозиции мощности
Consider a circuit with two sinusoidal voltage sources. According to the superposition principle, the total current resulting from both sources is the sum ...
Теорема о максимальной передаче мощности
Теорема о максимальной передаче мощности
Consider a linear AC circuit connected to a load, represented by its Thevenin equivalent. The current flowing through the load is determined using the ...
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