Ht-instruments VEGA78 Manual de usuario Pagina 34
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Valorado. / 5. Basado en revisión del cliente
VEGA78
EN - 32
12/09/2006 – 16:55:10
PHASE1 HARM CURRENT – Pag 2/5
h 03
Fs 100%
I1h
45.3%
Thd
35.5%
PAGE HARM V TABLE HARM PAG
12/09/2006 – 16:55:10
PHASE1 HARM CURRENT – Pag 2/5
h 03
Fs 200.0A
I1h
90.6A
Thd
35.5%
PAGE HARM V TABLE HARM PAG
Fig. 66: Harmonic analysis of current I1 in percentage/absolute values for 4-wire system
5.2.7. Vectorial diagrams screens
Starting from a any page of numerical values it’s possible to select the vectorial diagrams
screens of voltage and currents by pressing F4 key (or touch “VECTORS” at display). The
aim of this feature is to show, with numerical and graphical indications, the phase angles,
expressed in degree [°] between the three voltages V1, V2 and V3 and the currents I1, I2
and I3 in order to understand in each moment the inductive or capacitive loads nature of
electrical installations. By pressing cyclically F1 key the below screens are shown by
meter:
Vectorial diagram total of phase angles among V1, V2, V3 and between V1-I1, V2-I2,
V3-I3 more than indication of percentage values of “NEG%” e “ZERO%” parameters
(see § 10.3):
12/09/2006 – 16:55:10
TOTAL DIAGRAM – Page 1/6
NEG 0.0%
ZERO
0.0%
V1^ V2
120.0°
V2^ V3
120.0°
V3^ V1
120.0°
V1^ I1
60.0°
V2^ I2
60.0°
V3^ I3
60.0°
PAGE
Fig. 67: Vectorial diagram total for 4-wire system
12/09/2006 – 16:55:10
TOTAL DIAGRAM – Page 1/6
NEG 0.0%
ZERO
0.0%
V12^ V23
120.0°
V23^ V31
120.0°
V31^ V12
120.0°
V1^ I1
60.0°
V2^ I2
60.0°
V3^ I3
60.0°
PAGE
Fig. 68: Vectorial diagram total for 3-wire and ARON systems
- User manual 1
- 2. GENERAL DESCRIPTION 7
- 3. PREPARE TO USE 8
- 4. HOW TO OPERATE 9
- 5. GENERAL MENU 12
- __ ____ 16
- MOD(+) MOD(-) 41
- Generic Plant 45
- CLP/EXP PREDEF. SEL MODIFY 50
- VOLTAGE ANOMALIES 56
- HARMONICS 57
- 001_2006-09-11 104
- CAUTION 105
- 7. MEASURING PROCEDURES 108
- 8. MAINTENANCE 112
- 9. TECHNICAL SPECIFICATIONS 113
- For STD clamp 114
- FS = Full scale clamp 114
- )tsin(VVv(t) 116
- 11. AFTER-SALE SERVICE 124
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