HT instruments VEGA78 - Manual (Page 52)

VEGA78
EN - 50
5.4.6.2. Harmonics: sub-levels description
Press F1 key (alternatively touch CLP/EXP at display) to expand or compress the
harmonics sub-levels. The parameters inside sub-levels are strictly depending on type of
selected system (see § 5.3.1). Below there are some pictures of different possible
situations:
12/09/2006 – 16:55:10
RECORDING SETTINGS

-  Harmonics
-  Voltages
 THD
 DC
+  Odd
+  Even 
162/251 Parameters – Autonomy: 19d 0h
CLP/EXP PREDEF. SEL MODIFY
Fig. 95: Harmonics sub-levels: initial parameters selection
Inside Harmonics level there is another sub-level where an accurate selection of harmonic
parameters is possible. Move the cursor on “Odd” or “Even” using arrows key and press
F1 key (or touch CLP/EXP at display). The result, referred to Odd harmonics is below
shown:
12/09/2006 – 16:55:10
RECORDING SETTINGS

-  Odd
 Harmonic1
 Harmonic3
 Harmonic5
 Harmonic7
 Harmonic9 
162/251 Parameters – Autonomy: 19g 0h
CMP/EXP PREDEF. SEL MODIFY
Fig. 96: Harmonics sub-levels: odd harmonics selection
Press F3 key (alternatively touch SEL at display) to select/unselect the desired
parameters. The number of selected and recording autonomy are automatically updated
from meter. The below harmonic parameters can be selected for recording (see § 10.2):
Type of system Selectable parameters
Single phase THD%, DC, h01
h49 (V1N, VN-PE, I1)
Three phase 4-wire
THD%, DC, h01
h49 (V1N, V2N, V3N, VN-PE, I1, I2,
I3, IN)
Three phase 3-wire THD%, DC, h01
h49 (V12, V23, V31, I1, I2, I3)
Three phase 3-wire ARON THD%, DC, h01
h49 (V12, V23, V31, I1, I2, I3)
Table 6: Selectable parameters of harmonic analysis