CIRCUTOR AFQ Series - Manual (Page 34)

AFQ-4W
34 Instruction Manual
 Fundamental component (U
1
o I
1
): A sine wave component of order 1 of the
Fourier frequency serial development equal to the original periodic wave.
 Harmonic component (U
n
o I
n
): A sine wave component of order over 1 of
the Fourier frequency serial development a whole multiple of the original
frequency.
 Individual distortion rate (U
n
% o I
n
%): A ratio in % between the RMS value
of the voltage or harmonic current (U
n
o I
n
) and the RMS value of the
fundamental component (U
1
o I
1
).
Equation 3: Individual distortion rate
 True root mean square value (TRMS): The square root of the sum of the
squares of all components forming the wave.
Equation 4: True root mean square value
 Harmonic content: The difference between the total voltage or current and
the corresponding fundamental value.
 Harmonic distortion rate (THD): The ratio between the RMS value of the
harmonic content of the voltage and/or current and the value of the
fundamental component.
Equation 5: Harmonic distortion rate.