Question
Download Solution PDFPower consumed in a series RLC circuit can be calculated using:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFPower consumed in a series RLC circuit is referred as Active power or True power.
True Power / Active Power:
The product of voltage (V) and the component of the total current in phase with voltage (I cos ϕ) is equal to true power i.e.
True power, P = Voltage × Component of the total current in phase with the voltage
P = V × I cos ϕ = VI cos ϕ
It is measured in Watts
Reactive Power:
The product of voltage (V) and the component of total current 90° out of phase with voltage (I sin ϕ) is equal to reactive power i.e.
Reactive power, Q = Voltage × Component of total current 90° out of phase with the voltage
Q = V × I sin ϕ = VI sin ϕ
It is measured in VAR
Apparent Power:
The total power that appears to be transferred between the source and load is called apparent power. It is equal to the product of applied voltage (V) and circuit current (I).
Apparent power (S) = VI
It is measured in VA.
\(S = \sqrt {{P^2} + {Q^2}}\)
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