CIRCUTOR CVMk2 Series - Manual (Page 114)

114
CVM k2
QUALITY
7.1.3 VOLTAGE HARMONICS
In the voltage harmonic decomposition screen, numerical values are shown for the phase 1
harmonic decomposition.
The values are displayed in columns of 10, and the most important values are shown on the
left side of the screen as a %. These values are :
U1 fund : Value of the phase 1 fundamental.
U1 thd : Value of the phase 1 harmonic distortion rate expressed as a %.
Odd u1 thd : Value of the harmonic distortion rate for the phase 1 odd harmonics, expressed
as a %.
Even u1 thd : Value of the harmonic distortion rate for the phase 1 even harmonics,
expressed as a %.
The bottom menu offers the following buttons:
Info : This displays the system information screen (Section 6.1.1.1., System Information).
Next : This displays the screen of values corresponding with the next phase. This is a rotating
menu that contains phase 1, phase 2, phase 3 and neutral.
Values provided on this screen are real time values that correspond using the mean value
calculated from the signal samples.
Grap : This graphically displays the harmonics spectrum.
The phase displayed on the graphical interface corresponds to the one that was
selected for numerical values on the previous screen. The options permitted by the
graphical interface include: changing between viewing all harmonic values, odd
harmonic values and even harmonic values.