HT PQA400 User Manual

PQA400 - PQA823 - PQA824
EN - 31
5.2.6. HARM analysis screens
Starting from any page of numerical values it’s possible to enter harmonics numerical
values and histogram graphics screens section for voltage and current input signals by
pressing F2 key (or touch HARM at display). By pressing cyclically F1 key the below
screens are shown by meter:
 Harmonics values of V1, V2, V3 voltages and neutral voltage Vn (for three phase 4-
wire system), currents I1, I2, I3 and neutral current In (for three phase 4-wire system,
not available for PQA400) with THD% values both with histogram graphics and with
numerical values in percentage or absolute value, (see § 0 as below shown:
12/09/2006 – 16:55:10
TOTAL HARM VOLTAGE – Page 1/5
h 01
Fs 100%
V
1h
100.0%
V
2h
100.0%
V
3h
100.0%
V
nh
0.0%
Thd
6.5%
Thd
5.9%
Thd
4.3%
Thd
0.0%
PAGE HARM I TABLE HARM PAG
12/09/2006 – 16:55:10
TOTAL HARM VOLTAGE – Page 1/5
h 01
Fs 400.0V
V
1h
228.6V
V
2h
225.1V
V
3h
230.7V
V
nh
0.0V
Thd
6.5%
Thd
5.9%
Thd
4.3%
Thd
0.0%
PAGE HARM I TABLE HARM PAG
Fig. 57: Harmonic analysis of voltages in percentage/absolute values for 4-wire systems
12/09/2006 – 16:55:10
TOTAL HARM VOLTAGE – Page 1/4
h 01
Fs 100%
V
12h
100.0%
V
23h
100.0%
V
31h
100.0%
Thd
6.5%
Thd
5.9%
Thd
6.5%
PAGE HARM I TABLE HARM PAG
12/09/2006 – 16:55:10
TOTAL HARM VOLTAGE – Page 1/4
h 01
Fs 400.0V
V
12h
328.4V
V
23h
389.6V
V
31h
386.6V
Thd
6.5%
Thd
5.9%
Thd
4.3%
PAGE HARM I TABLE HARM PAG
Fig. 58: Harmonic analysis of voltages in percentage/absolute values for 3-wire and ARON
12/09/2006 – 16:55:10
PHASE1 HARM VOLTAGE – Pag 1/2
h 01
Fs 100%
V
1h
100.0%
Thd
6.5%
PAGE HARM I TABLE HARM PAG
12/09/2006 – 16:55:10
PHASE1 HARM VOLTAGE – Pag 1/2
h 01
Fs 400.0V
V
1h
228.6V
Thd
6.5%
PAGE HARM I TABLE HARM PAG
Fig. 59: Harmonic analysis of voltages in percentage/absolute values for Single phase
In all case the full scale of graphs is automatically set from meter depending on measured
values.
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HT PQA400 Specifications

General

Brand	HT
Model	PQA400
Category	Measuring Instruments
Language	English